# Physiomx Ear Tag Rev B ## Description Production-defensible Rev B ear tag tracker using nRF9151 with separate LTE and GNSS antennas, solar-assisted LiPo charging, battery protection, SPI NOR flash, NFC, eSIM, I2C sensors, Tag-Connect SWD, grouped EVT test points, and RF/power zoning on a 40 mm x 24 mm 4-layer PCB. ## Project Details - **Owner:** andriasleburu - **Created:** 3/21/2026 - **Last Updated:** 3/22/2026 - **Visibility:** Public - **Debug Access:** Tag-Connect SWD plus labeled test pads for VBAT, 3V3, GND, SWDIO, SWDCLK, RESET, solar input - **Antenna Keepout:** Top-edge antenna keep-out reserved for LTE and GNSS antennas - **Power Strategy:** Solar-assisted single-cell LiPo with charger/power-path and stable 3.3 V rail - **Board Size:** 40 mm x 24 mm - **Board Size Limit:** 40 mm x 24 mm - **Protection Requirements:** ESD/TVS on solar input, charging/test pads, and tamper lines with low-capacitance protection where needed - **Board Height:** 24 mm - **Release Criteria:** Zero ERC/DRC errors, no airwires, stable 3.3V during 350-500mA LTE bursts, accessible grouped debug/test pads, dedicated LTE/GNSS RF keep-outs, EVT-ready outputs for Seeed Fusion. - **Board Shape:** Rectangular rounded corners - **Compliance:** Seeed Studio Fusion EVT proto - **System Architecture:** Top RF zone with separate LTE and GNSS antennas and full keep-out; RF transition row with pi matching; central nRF9151 with crystals and eSIM; lower-middle sensors and NFC; bottom power path, charger, battery protection, debug and grouped test pads. - **Passive Rules:** 100nF at every IC power pin, 1uF local bulk, 4.7uF main rail, 10uF near battery and charger, I2C pull-ups 4.7k, reset pull-up 10k, default GPIO bias 100k where required - **Antenna Keep-Out:** Reserved top-edge keep-out zone for LTE and GNSS antennas - **Operating Temperature:** Outdoor livestock deployment - **Manufacturing Quantity Target:** 5-10 units - **Stackup:** 4-layer: L1 signals/components, L2 solid GND, L3 power+signals, L4 signals - **Connectivity:** LTE-M/NB-IoT, GNSS, NFC, I2C, SPI, SWD - **Enclosure:** 45 mm x 30 mm x 12 mm - **Revision:** Rev B - **RF Requirements:** Separate LTE and GNSS antennas, independent RF paths, pi matching, controlled impedance, stitching vias, keep noisy circuits away from RF - **Power Requirements:** Single-cell LiPo with solar-assisted charging and regulated 3.3V system rail - **Manufacturing Target:** Seeed Studio Fusion EVT, 5-10 units - **Mechanical Envelope:** 40 mm x 24 mm rounded rectangle - **Environmental:** Rugged outdoor animal-mounted ear tag, sealed service access, EVT 5-10 units - **Layer Stackup:** 4-layer: L1 signals/components, L2 solid GND, L3 power+signals, L4 signals - **Board Width:** 40 mm - **Layout Zones:** Top edge antennas, below antennas RF matching and nRF9151, middle sensors/flash/NFC/eSIM, bottom power subsystem and battery clearance ## Key Components ### AE1 — [NN02-224](https://www.flux.ai/adrian95/nn02-224.md) - Manufacturer Name: Ignion - Package: Chip Antenna - Part Type: Antenna - Role Details: Primary cellular antenna with dedicated feed and matching network - Datasheet URL: https://ignion.io/files/DS_NN02-224.pdf - Role: LTE Antenna - Manufacturer Part Number: NN02-224 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### AE2 — [NN03-320](https://www.flux.ai/adrian95/nn03-320.md) - Part Type: Antenna - Manufacturer Name: Ignion - Role Details: Dedicated GNSS antenna with separate feed and matching network - Role: GNSS Antenna - Manufacturer Part Number: NN03-320 - Package: Chip Antenna - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4329/NN03-320_Jan2021.pdf **Pins:** - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### D1 — [PESD5V0L1BA](https://www.flux.ai/lcsc/pesd5v0l1ba.md) - Role Details: Input surge and ESD clamp on exposed power input - Manufacturer Name: UMW(友台半导体) - Package: SOD-323 - Package or Case Code: SOD-323_L1.7-W1.3-LS2.5-BI - JLCPCB Part Class: Extended Part - Part Type: ESD Protection Devices - Role: ESD Protection - LCSC Part Number: C2687118 - Manufacturer Part Number: PESD5V0L1BA **Pins:** - A [pin 2] - K [pin 1] ### D2 — [ESD9B5.0ST5G](https://www.flux.ai/lcsc/esd9b5p0st5g.md) - Package or Case Code: SOD-923_L0.8-W0.6-LS1.0-BI - Product Info Url: https://lcsc.com/product-detail/Diodes-ESD_ON_ESD9B5-0ST5G_ESD9B5-0ST5G_C111566.html - Manufacturer Part Number: ESD9B5.0ST5G - JLCPCB Part Class: Extended Part - Role: ESD Protection - LCSC Part Number: C111566 - Part Type: ESD Protection Devices - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809042029_onsemi-ESD9B5-0ST5G_C111566.pdf - Manufacturer Name: onsemi(安森美) - Package: SOD-923 - Role Details: Low-capacitance ESD clamp for exposed digital or debug line group **Pins:** - 1 [pin 1] - 2 [pin 2] ### D3 — [TPD3E001DRLR](https://www.flux.ai/kicad-part-library/tpd3e001drlr.md) - Role Details: Three-channel low-capacitance ESD protection for exposed signal lines - Manufacturer Name: Texas Instruments Inc. - Datasheet URL: http://www.ti.com/lit/ds/symlink/tpd3e001.pdf - Package: SOT-553 - Manufacturer Part Number: TPD3E001DRLR - Package or Case Code: SOT-553 - Role: ESD Protection **Pins:** - ~ [pin 3] - ~ [pin 5] - IO1 [pin 1] - IO2 [pin 2] - IO3 [pin 4] ### D4 — [USBLC6-4SC6](https://www.flux.ai/lcsc/usblc6-4sc6.md) - Package or Case Code: SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BL - Role Details: Four-line interface ESD protector for external contact set - Manufacturer Name: ST(意法半导体) - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1810130920_STMicroelectronics-USBLC6-4SC6_C111212.pdf - LCSC Part Number: C111212 - Role: ESD Protection - Part Type: ESD Protection Devices - Product Info Url: https://lcsc.com/product-detail/Diodes-ESD_STMicroelectronics_USBLC6-4SC6_USBLC6-4SC6_C111212.html - Manufacturer Part Number: USBLC6-4SC6 - JLCPCB Part Class: Extended Part - Package: SOT-23-6 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### J1 — [BLACKSWIFT_CONNECTORS_TC2030-IDC-NL_1MMHOLES](https://www.flux.ai/swiftpilot/blackswiftconnectorstc2030-idc-nl1mmholes.md) - Package or Case Code: BLACKSWIFT_CONNECTORS_TC2030-IDC-NL_1MMHOLES - Part Type: Connector - Package: TC2030 compatible - Role: Debug Port - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Tag-Connect compatible board-side programming footprint placeholder for TC2030-CTX-NL landing pattern - Manufacturer Part Number: TC2030-CTX-NL **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] ### J2 — [Type-C-2.0-6Pin](https://www.flux.ai/jharwinbarrozo/type-c-20-6pin.md) - Part Type: Connector - Role: USB-C Power Input - Role Details: Sink-only USB Type-C connector for charging and service power - Package: USB-C SMT - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204071830_CIKI-Type-C-2-0-6Pin_C2987385.pdf - Manufacturer Part Number: Type-C-2.0-6Pin - Manufacturer Name: CIKI **Pins:** - CC1 - CC2 - GND - GND__1 - SHIELD - SHIELD__1 - SHIELD__2 - SHIELD__3 - V-BUS - V-BUS__1 ### J3 — [SM02B-SRSS-TB(LF)(SN)](https://www.flux.ai/adrian95/sm02b-srss-tblfsn.md) - Part Type: Connector - Manufacturer Part Number: SM02B-SRSS-TB(LF)(SN) - Package: JST-SH 2P SMT - Role Details: Single-cell LiPo connection - Datasheet URL: https://www.jst-mfg.com/product/pdf/eng/eSH.pdf - Manufacturer Name: JST Sales America Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: SM02BSRSSTBLFSN - Role: Battery Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - MP1 [pin 3] - MP2 [pin 4] ### J4 — [SM02B-SHLS-TF](https://www.flux.ai/adrian95/sm02b-shls-tf.md) - Part Type: Connectors - Datasheet URL: https://www.mouser.com/datasheet/3/1070/1/eSHL.pdf - Manufacturer Name: JST - Mount: Surface Mount - Package: JST-SH 2P SMT - Manufacturer Part Number: SM02B-SHLS-TF(LF)(SN) - Role Details: Compact solar panel input - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: CONN-SMD - Role: Solar Connector **Pins:** - 1 [pin 1] - 2 [pin 2] - MP1 [pin MP1] - MP2 [pin MP2] ### TP1 — [5019](https://www.flux.ai/adrian95/5019.md) - Part Type: Test Point - Manufacturer Name: Keystone Electronics - Package or Case Code: 5019 - Role Details: VBAT access - Package: SMT Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Manufacturer Part Number: 5019 - Role: Test Point - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP10 — [5019](https://www.flux.ai/adrian95/5019.md) - Part Type: Test Point - Manufacturer Name: Keystone Electronics - Package or Case Code: 5019 - Role Details: I2C_SDA access - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role: Test Point - Package: SMT Test Point - Manufacturer Part Number: 5019 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP11 — [5019](https://www.flux.ai/adrian95/5019.md) - Package or Case Code: 5019 - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Role Details: SIM_IO access - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package: SMT Test Point - Role: Test Point - Manufacturer Part Number: 5019 - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] ### TP2 — [5019](https://www.flux.ai/adrian95/5019.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role: Test Point - Package or Case Code: 5019 - Part Type: Test Point - Manufacturer Name: Keystone Electronics - License: https://creativecommons.org/licenses/by/4.0/ - Package: SMT Test Point - Manufacturer Part Number: 5019 - Role Details: 3V3 access **Pins:** - 1 [pin 1] ### TP3 — [5019](https://www.flux.ai/adrian95/5019.md) - Manufacturer Part Number: 5019 - Role: Test Point - Package: SMT Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Ground access - Package or Case Code: 5019 - Part Type: Test Point - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 **Pins:** - 1 [pin 1] ### TP4 — [5019](https://www.flux.ai/adrian95/5019.md) - License: https://creativecommons.org/licenses/by/4.0/ - Role: Test Point - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package: SMT Test Point - Package or Case Code: 5019 - Part Type: Test Point - Manufacturer Name: Keystone Electronics - Role Details: SWDIO access **Pins:** - 1 [pin 1] ### TP5 — [5019](https://www.flux.ai/adrian95/5019.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5019 - Role Details: SWDCLK access - Package: SMT Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Part Type: Test Point - Role: Test Point - Manufacturer Name: Keystone Electronics - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### TP6 — [5019](https://www.flux.ai/adrian95/5019.md) - Role: Test Point - Package: SMT Test Point - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package or Case Code: 5019 - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Role Details: RESET access - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5019 **Pins:** - 1 [pin 1] ### TP7 — [5019](https://www.flux.ai/adrian95/5019.md) - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role Details: Solar input access - Package or Case Code: 5019 - Manufacturer Name: Keystone Electronics - Part Type: Test Point - License: https://creativecommons.org/licenses/by/4.0/ - Package: SMT Test Point - Role: Test Point - Manufacturer Part Number: 5019 **Pins:** - 1 [pin 1] ### TP8 — [5019](https://www.flux.ai/adrian95/5019.md) - Role Details: VSYS access - License: https://creativecommons.org/licenses/by/4.0/ - Package: SMT Test Point - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Role: Test Point - Manufacturer Name: Keystone Electronics - Package or Case Code: 5019 - Part Type: Test Point **Pins:** - 1 [pin 1] ### TP9 — [5019](https://www.flux.ai/adrian95/5019.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 5019 - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=1357 - Package: SMT Test Point - Role: Test Point - Role Details: I2C_SCL access - Manufacturer Name: Keystone Electronics - Part Type: Test Point - Package or Case Code: 5019 **Pins:** - 1 [pin 1] ### U1 — [nRF9151](https://www.flux.ai/adrian95/nrf9151.md) - Role: Main SoC - Manufacturer Name: Nordic Semiconductor - Role Details: nRF9151 family placeholder for locked nRF9151-LACA-R; final MPN to be reconciled when exact library entry is available - Datasheet URL: https://docs-be.nordicsemi.com/bundle/ps_nrf9151/attach/nRF9151_PS_v1.0.pdf?_LANG=enus - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Microcontroller - Manufacturer Part Number: nRF9151-LACA-R - Package: SiP **Pins:** - ANT [pin 35] - AUX [pin 37] - COEX0 [pin 52] - COEX1 [pin 53] - COEX2 [pin 54] - DECO [pin 24] - ENABLE [pin 10] - GND [pin 39] - GND [pin 46] - GND [pin 7] - GND [pin 51] - GND [pin 20] - GND [pin 38] - GND [pin 55] - GND [pin 107] - GND [pin 112] - GND [pin 76] - GND [pin 41] - GND [pin 43] - GND [pin 109] - GND [pin 113] - GND [pin 36] - GND [pin 40] - GND [pin 13] - GND [pin 60] - GND [pin 106] - GND [pin 66] - GND [pin 30] - GND [pin 25] - GND [pin 34] - GND [pin 111] - GND [pin 1] - GND [pin 105] - GND [pin 71] - GND [pin 15] - GND [pin 110] - GND [pin 108] - GPS [pin 42] - MAGPIO0 [pin 21] - MAGPIO1 [pin 22] - MAGPIO2 [pin 23] - nRESET [pin 9] - P0.00 [pin 56] - P0.01 [pin 57] - P0.02 [pin 58] - P0.03 [pin 59] - P0.04 [pin 61] - P0.05 [pin 62] - P0.06 [pin 63] - P0.07 [pin 64] - P0.08 [pin 67] - P0.09 [pin 68] - P0.10 [pin 69] - P0.11 [pin 70] - P0.12 [pin 72] - P0.13/AIN0 [pin 73] - P0.14/AIN1 [pin 74] - P0.15/AIN2 [pin 75] - P0.16/AIN3 [pin 77] - P0.17/AIN4 [pin 78] - P0.18/AIN5 [pin 79] - P0.19/AIN6 [pin 80] - P0.20/AIN7 [pin 2] - P0.21/TRACECLK [pin 5] - P0.22/TRACEDATA[0] [pin 6] - P0.23/TRACEDATA[1] [pin 8] - P0.24/TRACEDATA[2] [pin 11] - P0.25/TRACEDATA[3] [pin 12] - P0.26 [pin 44] - P0.27 [pin 45] - P0.28 [pin 47] - P0.29 [pin 48] - P0.30 [pin 49] - P0.31 [pin 50] - RESERVED [pin 94] - RESERVED [pin 32] - RESERVED [pin 31] - RESERVED [pin 83] - RESERVED [pin 98] - RESERVED [pin 89] - RESERVED [pin 91] - RESERVED [pin 81] - RESERVED [pin 103] - RESERVED [pin 92] - RESERVED [pin 102] - RESERVED [pin 97] - RESERVED [pin 96] - RESERVED [pin 90] - RESERVED [pin 100] - RESERVED [pin 87] - RESERVED [pin 104] - RESERVED [pin 33] - RESERVED [pin 99] - RESERVED [pin 85] - RESERVED [pin 95] - RESERVED [pin 86] - RESERVED [pin 82] - RESERVED [pin 88] - RESERVED [pin 101] - RESERVED [pin 84] - RESERVED [pin 93] - SCLK [pin 8] - SDATA [pin 27] - SIM_1V8 [pin 19] - SIM_CLK [pin 18] - SIM_DET [pin 26] - SIM_IO [pin 17] - SIM_RST [pin 16] - SWDCLK [pin 3] - SWDIO [pin 4] - VDD [pin 14] - VDD_GPIO [pin 65] - VIO [pin 29] ### U10 — [TPS3430WDRCR](https://www.flux.ai/lcsc/tps3430wdrcr.md) - Role: Watchdog - Package or Case Code: VSON-10_L3.0-W3.0-P0.50-TL-EP - LCSC Part Number: C2870545 - Manufacturer Name: Texas Instruments - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TPS3430WDRCR - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps3430.pdf - Part Type: Monitors & Reset Circuits - Role Details: Intentional substitution from TPS3430DDCR to TPS3430WDRCR pending final watchdog timing/configuration confirmation - Substitute Manufacturer Part Number: TPS3430DDCR **Pins:** - ~{WDO} [pin 8] - CRST [pin 4] - CWD [pin 2] - EP [pin 11] - GND [pin 5] - NC [pin 9] - SET0 [pin 3] - SET1 [pin 6] - VDD1 [pin 1] - VDD2 [pin 10] - WDI [pin 7] ### U10 — [TPS3808DBV](https://www.flux.ai/kicad-part-library/tps3808dbv.md) - Role Details: Placeholder supervisory timer for locked TPS3430DDCR until exact library part is available - Datasheet URL: http://www.ti.com/lit/ds/symlink/tps3808.pdf - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: TPS3430DDCR - Role: Watchdog - Package or Case Code: SOT-23-6 - Package: SOT-23-6 **Pins:** - ~{MR} [pin 3] - ~{RESET} [pin 1] - CT [pin 4] - GND [pin 2] - SENSE [pin 5] - VDD [pin 6] ### U2 — [LIS2DW12TR](https://www.flux.ai/adrian95/lis2dw12tr.md) - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/group3/30/3a/4e/6b/68/16/4a/35/DM00323179/files/DM00323179.pdf/jcr:content/translations/en.DM00323179.pdf - Package: LGA - Part Type: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Role: Accelerometer - Manufacturer Name: STMicroelectronics - Role Details: 3-axis motion sensor - Manufacturer Part Number: LIS2DW12TR **Pins:** - CS [pin 2] - GND_1 [pin 6] - GND_2 [pin 8] - INT1 [pin 12] - INT2 [pin 11] - NC [pin 5] - RES [pin 7] - SCL/SPC [pin 1] - SDA/SDI/SDO [pin 4] - SDO/SA0 [pin 3] - VDD [pin 9] - VDDIO [pin 10] ### U3 — [TMP117NAIDRVR](https://www.flux.ai/lcsc/tmp117naidrvr.md) - Package or Case Code: WSON-6_L2.0-W2.0-P0.65-TL-EP - Package: WSON-6 - Part Type: Temperature Sensors - JLCPCB Part Class: Extended Part - Manufacturer Part Number: TMP119NAIDRVR - Role Details: Placeholder for locked TMP119NAIDRVR using same TI family compact digital temperature sensor footprint class - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C2876169 - Role: Temperature Sensor **Pins:** - ADD0 [pin 4] - ALERT [pin 3] - EP [pin 7] - GND [pin 2] - SCL [pin 1] - SDA [pin 6] - V+ [pin 5] ### U4 — [W25Q32JVXGIQ TR](https://www.flux.ai/lcsc/w25q32jvxgiq-tr.md) - JLCPCB Part Class: Extended Part - Role Details: Placeholder for locked W25Q32JVUXIQ using same 32 Mbit W25Q32JV family compact flash - Package or Case Code: XSON-8_L4.0-W4.0-P0.80-TL-EP - LCSC Part Number: C2456238 - Package: XSON-8 - Manufacturer Name: WINBOND(华邦) - Manufacturer Part Number: W25Q32JVUXIQ - Role: SPI Flash **Pins:** - ~{CS} [pin 1] - ~{WP(IO2)} [pin 3] - CLK [pin 6] - DI(IO0) [pin 5] - DO(IO1) [pin 2] - EP [pin 9] - GND [pin 4] - HOLDorRESET#（IO3） [pin 7] - VCC [pin 8] ### U5 — [BQ27421YZFR-G1A](https://www.flux.ai/lcsc/bq27421yzfr-g1a.md) - Package or Case Code: DSBGA-9_L1.5-W1.5-R3-C3-P0.50-BL - LCSC Part Number: C139621 - Manufacturer Part Number: BQ27421YZFR-G1A - JLCPCB Part Class: Extended Part - Part Type: Battery Management ICs - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2410121957_Texas-Instruments-BQ27421YZFR-G1A_C139621.pdf - Role Details: Battery state-of-charge monitor - Role: Fuel Gauge - Package: DSBGA - Manufacturer Name: TI(德州仪器) - Product Info Url: https://lcsc.com/product-detail/PMIC-Battery-Management_TI_BQ27421YZFR-G1A_BQ27421YZFR-G1A_C139621.html **Pins:** - BAT [pin C3] - BIN [pin B1] - GPOUT [pin A1] - SCL [pin A3] - SDA [pin A2] - SRX [pin C2] - VDD [pin B3] - VSS [pin C1] - VSS [pin B2] ### U6 — [BQ25186DLHR](https://www.flux.ai/adrian95/bq25186dlhr.md) - Manufacturer Part Number: BQ25185DLHR - Datasheet URL: https://www.ti.com/lit/ds/symlink/bq25186.pdf?ts=1740508135755&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FBQ25186 - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - Package or Case Code: SON40P220X200X80-11N - Role: Battery Charger - Package: WSON-10 - Role Details: Closest available family placeholder for locked BQ25185DLHR solar-assisted charger with power path - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - ~CE [pin 4] - ~INT [pin 9] - ~PG~/GPO [pin 3] - BAT [pin 2] - EP [pin 11] - GND [pin 5] - IN [pin 10] - SCL [pin 8] - SDA [pin 7] - SYS [pin 1] - TS/MR [pin 6] ### U7 — [BQ29700DSER](https://www.flux.ai/jecstronic/bq29700dser.md) - Manufacturer Name: Texas Instruments Inc. - Manufacturer Part Number: BQ29700DSER - Role Details: Cell overvoltage, undervoltage, and overcurrent protection - Part Type: Integrated Circuit - Package: WSON - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/bq2971.pdf - Role: Battery Protection **Pins:** - BAT [pin 5] - COUT [pin 2] - DOUT [pin 3] - NC [pin 1] - V- [pin 6] - VSS [pin 4] ### U8 — [NT3H2111W0FTTJ](https://www.flux.ai/jecstronic/nt3h2111w0fttj.md) - Part Type: Integrated Circuit - Manufacturer Part Number: NT3H2111W0FTTJ - Role: NFC Tag - Datasheet URL: https://www.nxp.com/docs/en/data-sheet/NT3H2111_2211.pdf - Package: HVSON-8 - Role Details: NFC interface with external antenna connection - Manufacturer Name: NXP USA Inc. - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - FD [pin 4] - LA [pin 1] - LB [pin 8] - SCL [pin 3] - SDA [pin 5] - VCC [pin 6] - VOUT [pin 7] - VSS [pin 2] ### U9 — [ST4SIM-300M](https://www.flux.ai/adrian95/st4sim-300m.md) - Manufacturer Part Number: ST4SIM-300M - Package: MFF2 - Role Details: Embedded SIM device for cellular provisioning - Manufacturer Name: STMicroelectronics - Datasheet URL: https://www.mouser.in/pdfDocs/st4sim-300m.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Role: eSIM **Pins:** - ~RESET [pin 7] - CLK [pin 6] - EP [pin 9] - GND [pin 1] - I/O [pin 3] - NC_1 [pin 4] - NC_2 [pin 5] - SWIO [pin 2] - VCC [pin 8] ### Y1 — [ABM11-32.000MHZ-8-7G-T](https://www.flux.ai/lcsc/abm11-32p000mhz-8-7g-t.md) - Role: Main Crystal - LCSC Part Number: C1986994 - JLCPCB Part Class: Extended Part - Role Details: 32 MHz reference crystal placeholder for locked ABM11W-32.0000MHZ-8-D1X-T3 - Package or Case Code: CRYSTAL-SMD_4P-L2.0-W1.6-BL - Package: 2.0x1.6mm 4-pad - Manufacturer Part Number: ABM11W-32.0000MHZ-8-D1X-T3 - Manufacturer Name: ABRACON **Pins:** - 1 [pin 1] - 3 [pin 3] - GND [pin 4] - GND [pin 2] ### Y2 — [ABS07AIG-32.768KHZ-9-T](https://www.flux.ai/lcsc/abs07aig-32p768khz-9-t.md) - Manufacturer Part Number: ABS07AIG-32.768KHZ-9-1-T - Role: RTC Crystal - JLCPCB Part Class: Extended Part - Manufacturer Name: ABRACON - Role Details: RTC tuning-fork crystal placeholder for locked ABS07AIG-32.768KHZ-9-1-T - Package: 3.2x1.5mm 2-pad - Package or Case Code: CRYSTAL-SMD_L3.2-W1.5-1 - LCSC Part Number: C1985609 **Pins:** - 1 [pin 1] - 2 [pin 2] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/andriasleburu/physiomx-ear-tag-rev-b](https://www.flux.ai/andriasleburu/physiomx-ear-tag-rev-b).* --- *Generated from [https://www.flux.ai/andriasleburu/physiomx-ear-tag-rev-b](https://www.flux.ai/andriasleburu/physiomx-ear-tag-rev-b)*