# Rackmount 12V Distribution PSU ## Description 2U 10-inch rackmount 12V distribution power supply for Dell server PSUs, with 12 managed boost-module slots, per-slot current monitoring, temperature logging, MCU supervision, and optional Ethernet metrics. ## Project Details - **Owner:** kproc - **Created:** 6/17/2026 - **Last Updated:** 6/26/2026 - **Visibility:** Public - **Connectivity:** Ethernet - **Domain:** Power Electronics - **Implementation Details:** JLCPCB assembly target - **Power Requirements:** High Current - **Operating Voltage:** 12V - **Stars:** 1 ## Key Components ### D_IN_TVS — [SMBJ15A](https://www.flux.ai/adrian95/smbj15a~boz.md) - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/tvs_diodes/littelfuse_tvs_diode_smbj_datasheet.pdf.pdf - Manufacturer Part Number: SMBJ15A - License: https://creativecommons.org/licenses/by/4.0/ - Role: Clamping - Manufacturer Name: Littelfuse Inc. - Section: Distribution Board - Part Type: Diode - Role Details: TVS clamp across protected 12V input rail. **Pins:** - A [pin 2] - K [pin 1] ### J_SLOT1 — ED32BGFBK - Manufacturer Name: WingTAT(格林柏) - Role: Daughterboard slot connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT10 — ED32BGFBK - Role: Daughterboard slot connector - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT11 — ED32BGFBK - Manufacturer Part Number: ED32BGFBK - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Role: Daughterboard slot connector **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT12 — ED32BGFBK - Manufacturer Part Number: ED32BGFBK - Role: Daughterboard slot connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Name: WingTAT(格林柏) **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT2 — ED32BGFBK - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Role: Daughterboard slot connector - Manufacturer Name: WingTAT(格林柏) - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT3 — ED32BGFBK - Role: Daughterboard slot connector - Manufacturer Part Number: ED32BGFBK - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Name: WingTAT(格林柏) **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT4 — ED32BGFBK - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Role: Daughterboard slot connector - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT5 — ED32BGFBK - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Role: Daughterboard slot connector - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT6 — ED32BGFBK - Manufacturer Part Number: ED32BGFBK - Role: Daughterboard slot connector - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Name: WingTAT(格林柏) **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT7 — ED32BGFBK - Role: Daughterboard slot connector - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT8 — ED32BGFBK - Role: Daughterboard slot connector - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf - Manufacturer Part Number: ED32BGFBK **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J_SLOT9 — ED32BGFBK - Manufacturer Part Number: ED32BGFBK - Role: Daughterboard slot connector - Manufacturer Name: WingTAT(格林柏) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/1eb3ff85fe135964b86af0ff0b99c357f8e1da24ab53a5106fb5c41386879d91.pdf **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 2 [pin 2] - 20 [pin 20] - 21 [pin 21] - 22 [pin 22] - 23 [pin 23] - 24 [pin 24] - 25 [pin 25] - 26 [pin 26] - 27 [pin 27] - 28 [pin 28] - 29 [pin 29] - 3 [pin 3] - 30 [pin 30] - 31 [pin 31] - 32 [pin 32] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### LED_BUS_12V — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Part Type: LED - Manufacturer Name: ORIENTAL TECHNOLOGY - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 0603GBD0790S01 - Role: Output indicator - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf **Pins:** - A [pin 2] - K [pin 1] ### LED_OUT_19V5 — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - Role: Output indicator - Part Type: LED - Manufacturer Name: ORIENTAL TECHNOLOGY - Manufacturer Part Number: 0603GBD0790S01 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - A [pin 2] - K [pin 1] ### LED_STATUS — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Section: Distribution Board - Role: Logic-level Shifting - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - Role Details: System status indicator driven by MCU through current-limit resistor. - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 0603GBD0790S01 - Manufacturer Name: ORIENTAL TECHNOLOGY **Pins:** - A [pin 2] - K [pin 1] ### Q_HS_RESET — [AO3400A](https://www.flux.ai/lcsc/ao3400a~e5y2.md) - Manufacturer Part Number: AO3400A - LCSC Part Number: C347475 - Continuous Drain Current: 5.7A - Role Details: Small-signal NMOS used as open-drain pull-down from LM5069 UVLO to GND. Pico drives gate via HOTSWAP_RESET_N to reset latched LM5069 faults. - Part Type: MOSFETs - Manufacturer Name: UMW(友台半导体) - Power: 1.4W - Role: Switching - Section: Distribution Board - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - JLCPCB Part Class: Extended Part - Transistor Type: N-channel MOSFET - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010301_UMW-Youtai-Semiconductor-Co---Ltd--AO3400A_C347475.pdf - Drain to Source Voltage: 30V - Product Info Url: https://lcsc.com/product-detail/Others_Youtai-Semiconductor-Co-Ltd-AO3400A-5-8A_C347475.html - Operating Temperature: -55 ~ +150℃ **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### Q_HS1 — [BSC0702LS](https://www.flux.ai/lcsc/bsc0702ls~2pl8.md) - Role: Switching - Section: Distribution Board - Manufacturer Part Number: BSC0702LS - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC0702LS_C501503.html - Power: 83W - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Manufacturer Name: Infineon(英飞凌) - Operating Temperature: -55~+150℃ - Drain to Source Voltage: 60V - Transistor Type: N-Channel - LCSC Part Number: C501503 - Part Type: MOSFETs - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2003241812_Infineon-Technologies-BSC0702LS_C501503.pdf - Continuous Drain Current: 84A - Role Details: One of six paralleled 60V BSC0702LS pass MOSFETs for upstream 150A hot-swap bank. Estimated 25A/FET at 150A; conduction loss about 1.7W/FET at 2.7mΩ cold, higher when hot. SOA/thermal validation required. **Pins:** - D [pin 7] - D [pin 8] - D [pin 6] - D [pin 5] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_HS2 — [BSC0702LS](https://www.flux.ai/lcsc/bsc0702ls~2pl8.md) - LCSC Part Number: C501503 - Transistor Type: N-Channel - Section: Distribution Board - Part Type: MOSFETs - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2003241812_Infineon-Technologies-BSC0702LS_C501503.pdf - Continuous Drain Current: 84A - Manufacturer Part Number: BSC0702LS - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC0702LS_C501503.html - JLCPCB Part Class: Extended Part - Power: 83W - Role: Switching - Role Details: One of six paralleled 60V BSC0702LS pass MOSFETs for upstream 150A hot-swap bank. Estimated 25A/FET at 150A; conduction loss about 1.7W/FET at 2.7mΩ cold, higher when hot. SOA/thermal validation required. - Manufacturer Name: Infineon(英飞凌) - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Operating Temperature: -55~+150℃ - Drain to Source Voltage: 60V **Pins:** - D [pin 7] - D [pin 8] - D [pin 6] - D [pin 5] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_HS3 — [BSC0702LS](https://www.flux.ai/lcsc/bsc0702ls~2pl8.md) - Manufacturer Name: Infineon(英飞凌) - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Drain to Source Voltage: 60V - Operating Temperature: -55~+150℃ - Role: Switching - Role Details: One of six paralleled 60V BSC0702LS pass MOSFETs for upstream 150A hot-swap bank. Estimated 25A/FET at 150A; conduction loss about 1.7W/FET at 2.7mΩ cold, higher when hot. SOA/thermal validation required. - Power: 83W - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC0702LS_C501503.html - Manufacturer Part Number: BSC0702LS - Continuous Drain Current: 84A - Section: Distribution Board - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2003241812_Infineon-Technologies-BSC0702LS_C501503.pdf - Part Type: MOSFETs - Transistor Type: N-Channel - LCSC Part Number: C501503 **Pins:** - D [pin 7] - D [pin 8] - D [pin 6] - D [pin 5] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_HS4 — [BSC0702LS](https://www.flux.ai/lcsc/bsc0702ls~2pl8.md) - Section: Distribution Board - Transistor Type: N-Channel - LCSC Part Number: C501503 - Role: Switching - Part Type: MOSFETs - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2003241812_Infineon-Technologies-BSC0702LS_C501503.pdf - Continuous Drain Current: 84A - Manufacturer Part Number: BSC0702LS - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC0702LS_C501503.html - JLCPCB Part Class: Extended Part - Power: 83W - Operating Temperature: -55~+150℃ - Drain to Source Voltage: 60V - Manufacturer Name: Infineon(英飞凌) - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Role Details: One of six paralleled 60V BSC0702LS pass MOSFETs for upstream 150A hot-swap bank. Estimated 25A/FET at 150A; conduction loss about 1.7W/FET at 2.7mΩ cold, higher when hot. SOA/thermal validation required. **Pins:** - D [pin 7] - D [pin 8] - D [pin 6] - D [pin 5] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_HS5 — [BSC0702LS](https://www.flux.ai/lcsc/bsc0702ls~2pl8.md) - Role: Switching - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC0702LS_C501503.html - Manufacturer Part Number: BSC0702LS - Power: 83W - Section: Distribution Board - Manufacturer Name: Infineon(英飞凌) - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Drain to Source Voltage: 60V - Operating Temperature: -55~+150℃ - LCSC Part Number: C501503 - Transistor Type: N-Channel - Role Details: One of six paralleled 60V BSC0702LS pass MOSFETs for upstream 150A hot-swap bank. Estimated 25A/FET at 150A; conduction loss about 1.7W/FET at 2.7mΩ cold, higher when hot. SOA/thermal validation required. - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2003241812_Infineon-Technologies-BSC0702LS_C501503.pdf - Part Type: MOSFETs - Continuous Drain Current: 84A **Pins:** - D [pin 7] - D [pin 8] - D [pin 6] - D [pin 5] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q_HS6 — [BSC0702LS](https://www.flux.ai/lcsc/bsc0702ls~2pl8.md) - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC0702LS_C501503.html - JLCPCB Part Class: Extended Part - Manufacturer Part Number: BSC0702LS - Drain to Source Voltage: 60V - Section: Distribution Board - Operating Temperature: -55~+150℃ - Manufacturer Name: Infineon(英飞凌) - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Role Details: One of six paralleled 60V BSC0702LS pass MOSFETs for upstream 150A hot-swap bank. Estimated 25A/FET at 150A; conduction loss about 1.7W/FET at 2.7mΩ cold, higher when hot. SOA/thermal validation required. - Power: 83W - Role: Switching - LCSC Part Number: C501503 - Transistor Type: N-Channel - Continuous Drain Current: 84A - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2003241812_Infineon-Technologies-BSC0702LS_C501503.pdf - Part Type: MOSFETs **Pins:** - D [pin 7] - D [pin 8] - D [pin 6] - D [pin 5] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### SW_PWR — [L101011MS02Q](https://www.flux.ai/adrian95/l101011ms02q~ck2.md) - Part Type: Switch - Manufacturer Name: C&K - Manufacturer Part Number: L101011MS02Q - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.littelfuse.com/assetdocs/littelfuse-ck-slide-l-series-datasheet?assetguid=b0eee6fb-c634-4a1e-9e34-22a5c4b081c8 - Role: Power enable switch **Pins:** - 1 [pin 1] - 2 [pin 2] ### U_HOTSWAP — [LM5069MMX-1/NOPB](https://www.flux.ai/adrian95/lm5069mmx-1nopb~u6.md) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flm5069 - Role Details: Baseline upstream PSU hot-swap controller, latch-off variant. MCU reset/control should pull UVLO below threshold through an open-drain transistor; external MOSFET bank, Kelvin shunt, SOA, timer, and power-limit values still require validation. - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Texas Instruments - Section: Distribution Board - Part Type: Integrated Circuit - Manufacturer Part Number: LM5069MMX-1/NOPB - Max Current: 133A - Role: Protection **Pins:** - GATE [pin 10] - GND [pin 5] - OUT [pin 9] - OVLO [pin 4] - PGD [pin 8] - PWR [pin 7] - SENSE [pin 1] - TIMER [pin 6] - UVLO [pin 3] - VIN [pin 2] ### U_LOGIC_BUCK — [LM2596S-12RG](https://www.flux.ai/cherepanyadima/lm2596s-12rg~ld.md) - Role Details: First-pass 12V to 5V logic buck for Pico 2 and slot-control logic; selected as JLC/LCSC-friendly placeholder, full buck support parts and exact fixed/adjustable variant must be validated. - Role: Power Regulation - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2577/UMW%20LM2596_HV.pdf - Package or Case Code: TO-263-5_L10.1-W8.7-P1.70-LS15.2-BR - JLCPCB Part Class: Extended Part - Manufacturer Part Number: LM2596S-12RG - LCSC Part Number: C2977094 - Manufacturer Name: HGC(深圳汉芯) - Part Type: DC-DC Converters **Pins:** - FB [pin 4] - GND [pin 3] - GND [pin 6] - ON_OFF [pin 5] - OUTPUT [pin 2] - VIN [pin 1] ### U_MCU — [Raspberry Pi Pico 2 Shield](https://www.flux.ai/jharwinbarrozo/raspberry-pi-pico-2-shield~co.md) - Symbol Style: Parametric - Role Details: Representative control MCU for slot enable, telemetry, and status LED. Ethernet deferred. - Manufacturer Part Number: Raspberry Pi Pico 2 - Part Type: Microcontroller - Manufacturer Name: Raspberry Pi Foundation - Role: Logic-level Shifting - Section: Distribution Board **Pins:** - 3V3 [pin 36] - 3V3_EN [pin 37] - ADC_VREF [pin 35] - AGND [pin 33] - GND [pin 8] - GND [pin 23] - GND [pin 28] - GND [pin 3] - GND [pin 42] - GND [pin 13] - GND [pin 38] - GND [pin 18] - GPIO0 [pin 1] - GPIO1 [pin 2] - GPIO10 [pin 14] - GPIO11 [pin 15] - GPIO12 [pin 16] - GPIO13 [pin 17] - GPIO14 [pin 19] - GPIO15 [pin 20] - GPIO16 [pin 21] - GPIO17 [pin 22] - GPIO18 [pin 24] - GPIO19 [pin 25] - GPIO2 [pin 4] - GPIO20 [pin 26] - GPIO21 [pin 27] - GPIO22 [pin 29] - GPIO26_ADC0 [pin 31] - GPIO27_ADC1 [pin 32] - GPIO28_ADC2 [pin 34] - GPIO3 [pin 5] - GPIO4 [pin 6] - GPIO5 [pin 7] - GPIO6 [pin 9] - GPIO7 [pin 10] - GPIO8 [pin 11] - GPIO9 [pin 12] - RUN [pin 30] - SWCLK [pin 41] - SWDIO [pin 43] - VBUS [pin 40] - VSYS [pin 39] ### U_SLOT_BUF — [74LVC1G126GW-Q100H](https://www.flux.ai/lcsc/74lvc1g126gw-q100h~9afg.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2407241040_Nexperia-74LVC1G126GW-Q100H_C548264.pdf - Product Info Url: https://lcsc.com/product-detail/presales_Nexperia-74LVC1G126GW-Q100H_C548264.html - Role Details: MCU-to-slot enable/control buffer; one per slot for first-pass schematic. - Manufacturer Part Number: 74LVC1G126GW-Q100H - Manufacturer Name: Nexperia(安世) - Part Type: Buffers / Drivers - Package or Case Code: TSSOP-5_L2.1-W1.3-P0.65-LS2.2-BL - Role: Logic-level Shifting - LCSC Part Number: C548264 - Section: Distribution Board - JLCPCB Part Class: Extended Part **Pins:** - A [pin 2] - GND [pin 3] - OE [pin 1] - VCC [pin 5] - Y [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/kproc/rackmount-12v-distribution-psu~zf](https://www.flux.ai/kproc/rackmount-12v-distribution-psu~zf).* --- *Generated from [https://www.flux.ai/kproc/rackmount-12v-distribution-psu~zf](https://www.flux.ai/kproc/rackmount-12v-distribution-psu~zf)*