# 24V Industrial Power Distribution ## Description Industrial 24 VDC input protection, distribution, regulated 12 V and 5 V outputs, diagnostics, test points, and selectable 0V-to-PE bonding. Schematic and BOM only; no PCB layout started. ## Project Details - **Owner:** alekseykuznetsov - **Created:** 5/20/2026 - **Last Updated:** 5/20/2026 - **Visibility:** Public ## Key Components ### D1 — [SMCJ33A-13-F](https://www.flux.ai/lcsc/smcj33a-13-f~8tjg.md) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Diodes-Incorporated-SMCJ33A-13-F_C135162.pdf - Package or Case Code: SMC_L6.9-W5.9-LS7.9-R-RD - Product Info Url: https://lcsc.com/product-detail/TVS_Diodes-Incorporated-SMCJ33A-13-F_C135162.html - Role Details: Input transient clamp: VRWM 33 V, VBR 36.7-40.6 V, VC 53.3 V - JLCPCB Part Class: Extended Part - LCSC Part Number: C135162 - Role: TVS Protection - Manufacturer Part Number: SMCJ33A-13-F - Part Type: TVS - Manufacturer Name: DIODES(美台) **Pins:** - 1 [pin 1] - 2 [pin 2] ### D2 — [SS56B](https://www.flux.ai/lcsc/ss56b~ogr9.md) - Manufacturer Part Number: SS56B - JLCPCB Part Class: Extended Part - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - Role Details: LM2596 12V buck catch diode; 5 A, 60 V Schottky satisfies >=1.3x load and >=1.25x VIN - Forward Voltage: 0.45V to 0.55V - Role: Catch Diode - LCSC Part Number: C360459 - Reverse Voltage: 60V - Product Info Url: https://lcsc.com/product-detail/Others_Chongqing-Pingwei-Tech-SS56B_C360459.html - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2409302300_Chongqing-Pingwei-Tech-SS56B_C360459.pdf - Diode Type: Schottky - Manufacturer Name: PINGWEI(平伟) - Part Type: Schottky Barrier Diodes (SBD) **Pins:** - A [pin 2] - K [pin 1] ### D3 — [SS56B](https://www.flux.ai/lcsc/ss56b~ogr9.md) - Forward Voltage: 0.45V to 0.55V - Package or Case Code: SMB_L4.6-W3.6-LS5.3-RD - JLCPCB Part Class: Extended Part - Manufacturer Part Number: SS56B - Role Details: LM2596 5V buck catch diode; 5 A, 60 V Schottky satisfies >=1.3x load and >=1.25x VIN - Role: Catch Diode - LCSC Part Number: C360459 - Manufacturer Name: PINGWEI(平伟) - Part Type: Schottky Barrier Diodes (SBD) - Diode Type: Schottky - Datasheet URL: https://www.lcsc.com/datasheet/lcsc_datasheet_2409302300_Chongqing-Pingwei-Tech-SS56B_C360459.pdf - Product Info Url: https://lcsc.com/product-detail/Others_Chongqing-Pingwei-Tech-SS56B_C360459.html - Reverse Voltage: 60V **Pins:** - A [pin 2] - K [pin 1] ### F1 — [64900001039](https://www.flux.ai/adrian95/64900001039~47.md) - Manufacturer Name: Littelfuse Inc. - Manufacturer Part Number: 64900001039 - Role: Input Fuse - Role Details: Fuse holder only: Littelfuse 64900001039, 5x20mm PCB holder rated 6.3A/250V. Install fuse element F2 separately; choose DC interrupt rating for available fault current. - Datasheet URL: https://www.littelfuse.com/assetdocs/649-series-fuseholder-data-sheet?assetguid=273c538e-be34-4663-90f2-d0254c30b851 - Current Rating: 6.3A - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Fuse **Pins:** - P1 [pin 1] - P2 [pin 2] ### F2 — [5F.6300222000R1(5)](https://www.flux.ai/lcsc/5fp6300222000r15~x9qq.md) - Product Info Url: https://lcsc.com/product-detail/Glass-Fuses_Glass-tube-fuse-Double-hat-line_C140514.html - Package or Case Code: FUSE-TH_BD5.8-L22.5-P26.50-D0.7 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_Xucheng-Elec-5F-6300222000R1-5_C140514.pdf - JLCPCB Part Class: Extended Part - Current Rating: 6.3A - Part Type: Cartridge Fuses - Voltage Rating: 250V - Role Details: BOM-only replaceable fuse element for F1 holder: preferred exact fuse Littelfuse 021506.3MXP, 5x20mm, 6.3A, 250V time-delay. Library placeholder kept no-connect/exclude PCB. - Role: Protection - LCSC Part Number: C140514 - Exclude from PCB: true - Manufacturer Part Number: 021506.3MXP - Manufacturer Name: Littelfuse **Pins:** - 1 [pin 1] - 2 [pin 2] ### FL1 — [7448063801](https://www.flux.ai/adrian95/7448063801~4in.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: 7448063801_WE-CMBNC - Role Details: 38A common-mode choke for full simultaneous input current; replaces 5A 744273501. - Datasheet URL: https://www.we-online.com/components/products/datasheet/7448063801.pdf - Manufacturer Part Number: 7448063801 - Role: Choke (EMI Filter) - Part Type: Filter - Manufacturer Name: Wurth Elektronik **Pins:** - 1 [pin 1] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - 9 [pin 9] ### J1 — [1847628](https://www.flux.ai/adrian95/1847628~y8y.md) - Role: Input Connector - Manufacturer Part Number: 1847628 - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role Details: 24 VDC input connector: VIN+_24V, VIN-_0V, PE/CHASSIS - Manufacturer Name: Phoenix Contact - Datasheet URL: https://www.phoenixcontact.com/us/products/1847628/pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - MH1 [pin MH1] - MH2 [pin MH2] ### J2 — [1146450000](https://www.flux.ai/cherepanyadima/1146450000.md) - Part Type: Connector - Role: Power Output Connector - Datasheet URL: https://datasheet.weidmueller.com/pdf/en/1146450000/scope/1/ - Manufacturer Name: Weidmüller - Role Details: Separate high-current output terminal block for protected 24V, 12V, 5V and 0V returns - Manufacturer Part Number: 1146450000 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### J3 — [1146450000](https://www.flux.ai/cherepanyadima/1146450000.md) - Role: Diagnostic Connector - Role Details: Low-current terminal block for PWR_OK_24V, PWR_OK_12V, PWR_OK_5V and common pins - Manufacturer Part Number: 1146450000 - Part Type: Connector - Datasheet URL: https://datasheet.weidmueller.com/pdf/en/1146450000/scope/1/ - Manufacturer Name: Weidmüller **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### J4 — [5000](https://www.flux.ai/adrian95/5000.md) - Manufacturer Name: Keystone - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p62.pdf - Part Type: Connectors - Role: Test Point - Role Details: Manual measurement test point - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5000 **Pins:** - 1 [pin 1] ### J5 — [5000](https://www.flux.ai/adrian95/5000.md) - Role Details: Manual measurement test point - Part Type: Connectors - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p62.pdf - Manufacturer Name: Keystone - Manufacturer Part Number: 5000 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Test Point **Pins:** - 1 [pin 1] ### J6 — [5000](https://www.flux.ai/adrian95/5000.md) - Role Details: Manual measurement test point - Manufacturer Part Number: 5000 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p62.pdf - Part Type: Connectors - Role: Test Point - Manufacturer Name: Keystone **Pins:** - 1 [pin 1] ### J7 — [5000](https://www.flux.ai/adrian95/5000.md) - Role: Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5000 - Role Details: Manual measurement test point - Manufacturer Name: Keystone - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p62.pdf - Part Type: Connectors **Pins:** - 1 [pin 1] ### J8 — [5000](https://www.flux.ai/adrian95/5000.md) - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p62.pdf - Part Type: Connectors - Manufacturer Name: Keystone - Manufacturer Part Number: 5000 - Role Details: Manual measurement test point - Role: Test Point - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### LED1 — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - Role Details: Green visual power/status indication - Part Type: LED - Manufacturer Part Number: 0603GBD0790S01 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: ORIENTAL TECHNOLOGY - Role: Status LED **Pins:** - A [pin 2] - K [pin 1] ### LED2 — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Part Type: LED - Role Details: Green visual power/status indication - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - Role: Status LED - Manufacturer Part Number: 0603GBD0790S01 - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: ORIENTAL TECHNOLOGY **Pins:** - A [pin 2] - K [pin 1] ### LED3 — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Part Type: LED - Role Details: Green visual power/status indication - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 0603GBD0790S01 - Manufacturer Name: ORIENTAL TECHNOLOGY - Role: Status LED **Pins:** - A [pin 2] - K [pin 1] ### LED4 — [0603GBD0790S01](https://www.flux.ai/adrian95/0603gbd0790s01~iak.md) - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4336/0603GBD0790S01.pdf - Part Type: LED - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 0603GBD0790S01 - Role: Status LED - Manufacturer Name: ORIENTAL TECHNOLOGY - Role Details: Green visual power/status indication **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [BSC340N08NS3GATMA1](https://www.flux.ai/lcsc/bsc340n08ns3gatma1~ztpw.md) - JLCPCB Part Class: Extended Part - Role: Reverse Polarity Protection - Manufacturer Part Number: BSC340N08NS3GATMA1 - Package or Case Code: PG-TDSON-8_L5.0-W6.0-P1.27-BL-EP - Role Details: External blocking FET controlled by TPS26630 B_GATE; high-side reverse polarity/reverse-current protection - Manufacturer Name: Infineon Technologies AG - Datasheet URL: https://assets.lcsc.com/datasheet/szlcsc/Download-ISO9001-Certification.pdf - Part Type: MOSFETs - LCSC Part Number: C513252 - Product Info Url: https://lcsc.com/product-detail/MOSFET_Infineon-Technologies-BSC340N08NS3GATMA1_C513252.html **Pins:** - D [pin 6] - D [pin 5] - D [pin 8] - D [pin 7] - G [pin 4] - S [pin 1] - S [pin 2] - S [pin 3] ### Q2 — [BSS138](https://www.flux.ai/vasy_skral/bss138~3ld.md) - Datasheet URL: https://www.onsemi.com/pdf/datasheet/bss138-d.pdf - Part Type: Transistor - Role: Switching - Manufacturer Name: onsemi - Role Details: TPS26630 blocking FET gate pulldown device per datasheet simple 24 V path protection application - Manufacturer Part Number: BSS138 **Pins:** - D [pin 3] - G [pin 1] - S [pin 2] ### TP1 — [5000](https://www.flux.ai/adrian95/5000.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5000 - Manufacturer Name: Keystone - Role Details: Manual measurement test point - Part Type: Connectors - Role: Test Point - Datasheet URL: https://www.keyelco.com/userAssets/file/K75p62.pdf **Pins:** - 1 [pin 1] ### U1 — [LM2596S-12](https://www.flux.ai/lcsc/lm2596s-12~pimq.md) - Part Type: DC-DC Converters - Frequency: 150kHz - Manufacturer Name: UMW(友台半导体) - Manufacturer Part Number: LM2596S-12 - Max Input Voltage: 40V - Operating Temperature: -40℃~+125℃ - Substitute Manufacturer Part Number: MP4572GQB-P; MPQ4572GQB-P; TDK-Lambda CCG30-24-12S - Package or Case Code: TO-263-5_L10.0-W8.4-P1.70-LS15.3-BR - LCSC Part Number: C347422 - Product Info Url: https://lcsc.com/product-detail/DC-DC-Converters_UMW-Youtai-Semiconductor-Co-Ltd-LM2596S-12_C347422.html - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409271113_UMW-Youtai-Semiconductor-Co---Ltd--LM2596S-12_C347422.pdf - Max Output Voltage: 12V - Output Current: 3.5A - Role: 12V Buck Regulator - JLCPCB Part Class: Extended Part - Role Details: 12 V / 2 A buck rail. Package A added TPS26630 front-end OVP/current-limit/reverse protection ahead of this 40 V LM2596; preferred future IC substitution remains MP4572GQB-P/MPQ4572GQB-P for native 60 V input if full regulator redesign is desired. **Pins:** - ~{ON}/OFF [pin 5] - Feedback [pin 4] - Gnd [pin 3] - Output [pin 2] - TAB [pin 6] - Vin [pin 1] ### U2 — [LM2596S-5.0/NOPB](https://www.flux.ai/adrian95/lm2596s-5p0nopb~ji8.md) - Substitute Manufacturer Part Number: TPS54561DPRT; TPS54561DPRR; TDK-Lambda CCG30-24-05S - Manufacturer Name: Texas Instruments - Manufacturer Part Number: LM2596S-5.0/NOPB - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 5 V / 3 A buck rail. Package A added TPS26630 front-end OVP/current-limit/reverse protection ahead of this 40 V LM2596; preferred future IC substitution remains TPS54561DPRT/TPS54561DPRR for native 60 V input if full regulator redesign is desired. - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2596.pdf - Part Type: Integrated Circuit - Role: 5V Buck Regulator **Pins:** - ~ON~/OFF [pin 5] - FEEDBACK [pin 4] - GND_TAB [pin 6] - GROUND [pin 3] - OUTPUT [pin 2] - VIN [pin 1] ### U3 — [LM2903DR2G](https://www.flux.ai/adrian95/lm2903dr2g~3fw.md) - Role: Power-Good Comparator - Role Details: Open-collector outputs for PWR_OK_24V and PWR_OK_12V - Datasheet URL: https://www.onsemi.com/pdf/datasheet/lm393-d.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: LM2903DR2G - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - GND [pin 4] - INPUTS_A_1 [pin 2] - INPUTS_A_2 [pin 3] - INPUTS_B_1 [pin 5] - INPUTS_B_2 [pin 6] - OUTPUT_A [pin 1] - OUTPUT_B [pin 7] - VCC [pin 8] ### U4 — [LM2903DR2G](https://www.flux.ai/adrian95/lm2903dr2g~3fw.md) - Manufacturer Part Number: LM2903DR2G - Manufacturer Name: onsemi - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Open-collector output for PWR_OK_5V; second channel reserved/no-connect - Datasheet URL: https://www.onsemi.com/pdf/datasheet/lm393-d.pdf - Role: Power-Good Comparator - Part Type: Integrated Circuit **Pins:** - GND [pin 4] - INPUTS_A_1 [pin 2] - INPUTS_A_2 [pin 3] - INPUTS_B_1 [pin 5] - INPUTS_B_2 [pin 6] - OUTPUT_A [pin 1] - OUTPUT_B [pin 7] - VCC [pin 8] ### U5 — [TL431ACDBZR,215](https://www.flux.ai/lcsc/tl431acdbzrc215~78rs.md) - LCSC Part Number: C131682 - JLCPCB Part Class: Extended Part - Part Type: Voltage References - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410010302_Nexperia-TL431ACDBZR-215_C131682.pdf - Role Details: 2.495 V reference for LM2903 rail-good thresholds - Manufacturer Name: Nexperia(安世) - Role: Voltage Reference - Package or Case Code: SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR - Manufacturer Part Number: TL431ACDBZR,215 - Product Info Url: https://lcsc.com/product-detail/Voltage-References_Nexperia_TL431ACDBZR-215_TL431ACDBZR-215_C131682.html **Pins:** - A [pin 3] - K [pin 1] - REF [pin 2] ### U6 — [TPS26630RGER](https://www.flux.ai/jecstronic/tps26630rger~cq.md) - Part Type: Integrated Circuit - Role: Protection - Role Details: Package A front-end eFuse/surge protection. Set current limit ~6A, OVP near 33V, reverse polarity support per TPS26630 typical 24V industrial application. - Manufacturer Name: Texas Instruments - Manufacturer Part Number: TPS26630RGER - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps2663.pdf - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - B_GATE [pin 3] - DRV [pin 4] - DVDT [pin 9] - FLT_N [pin 14] - GND [pin 8] - ILIM [pin 10] - IMON [pin 13] - IN [pin 2] - IN [pin 1] - IN_SYS [pin 5] - MODE [pin 11] - NC [pin 20] - NC [pin 24] - NC [pin 22] - NC [pin 21] - NC [pin 23] - NC [pin 19] - OUT [pin 18] - OUT [pin 17] - OVP [pin 7] - PAD [pin 25] - PGOOD [pin 16] - PGTH [pin 15] - SHDN_N [pin 12] - UVLO [pin 6] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/alekseykuznetsov/24v-industrial-power-distribution~fh](https://www.flux.ai/alekseykuznetsov/24v-industrial-power-distribution~fh).* --- *Generated from [https://www.flux.ai/alekseykuznetsov/24v-industrial-power-distribution~fh](https://www.flux.ai/alekseykuznetsov/24v-industrial-power-distribution~fh)*