6 layers48 × 40 mm
6 layers48 × 40 mm
Digital
UMDBPP/TerminatorFlight termination device
- Size
- 48 × 40 mm
- Copper layers
- 6
- Thickness
- 1.56 mm
- Parts
- 69
- Nets
- 78
- Pads
- 303
- Tracks, vias
- 730, 284
- Pours
- 344
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 29 Jul 2023
- Updated
- 7 Sep 2026
Overview
Digital is an open-source printed circuit board by UMDBPP, from the UMDBPP/Terminator repository on GitHub. It is a 6-layer board of 48 × 40 mm with 69 parts on 78 nets, routed with 730 tracks and 284 vias.
It is built around the LORA-E5-HF, TPSM33625FRDNR and TMP1075DSG, with the MAX-M10S, MIC5504-3.3YM5 and PJA3432_R1_00001 among its other parts. Its parts include 18 resistors, 17 capacitors, 9 ICs, 6 connectors and 2 diodes.
Main components
7
LORA-E5-HF
SMD,12x12mmSMD,12x12mm LoRa Modules ROHSSeeedLoRa Modules
TPSM33625FRDNR
QFN-11(4.4x3.4)-40℃~+105℃ 1 1.5uA 1MHz 1V~15V 2.5A 2mm 3.5mm 3V~36V 4.5mm 87% Over-temperature protection、Over Current Protection、Under Voltage Protection、Automatic fault recovery、Programmable output voltage、Light load efficient mode、External clock synchronization Plastic encapsulated type Step-down type ±1% QFN-11(4.4x3.4) DC-DC Power Modules ROHSTexas InstrumentsDC-DC Power Modules
TMP1075DSG
SON8High Accuracy Temperature Sensor with I2C and SMBus Interface in Industry Standard LM75Texas InstrumentsUncategorised
MAX-M10S
LCC-18_10.1X9.7LCC-18_10.1X9.7 New Arrivals ROHSu-bloxUncategorised
MIC5504-3.3YM5
SOT-23-5-40℃~+125℃@(Tj) 1 120uVrms 15uA 180mV@(300mA) 3.3V 300mA 5.5V 75dB@(1kHz) Fixed Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
PJA3432_R1_00001
SOT-23MOSFETsPANJIT International
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
README
README.mdTerminator
A flight termination device for BPP.
T1100 - Current Revision
Much the same as T1000 but simpler and more complete.
T1000
Shipman's ENEE499L project. The digital portion integrates a STM32L4, GPS, P/T Sensor, FRAM, and SX1262 Radio. This should provide quite a bit of flexibility in a small package while consuming minimal power. The digital board interfaces with a cutdown board which performs hot-wire termination like many other designs. However, this board is really just a barebones buck converter power stage that will be controlled by the digital board. This should provide increased flexiblity and efficiency over other implementations while also allowing T1000 to terminate even 550 paracord.
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C4, C6, C14 |
| 5 | 10k | Resistor_SMD:R_0402_1005Metric | R3, R4, R12, R13, R18 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C16, C17, C18, C22 |
| 3 | MountingHole_Pad | Mounting_Wuerth:Mounting_Wuerth_WA-SMSI-M2_H2mm_9774020243 | H1, H2, H3 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C23, C35 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C8, C19 |
| 2 | 47k | Resistor_SMD:R_Array_Convex_4x1206 | RN1, RN2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R9, R10 |
| 2 | ??k | Resistor_SMD:R_0402_1005Metric | R14, R17 |
| 2 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3, J7 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP3 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D3.0mm | TP4, TP5 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric | R19 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R20 |
| 1 | 100m | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 15uF | Capacitor_SMD:C_1206_3216Metric | C21 |
| 1 | 1S | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | 1uF | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 23.2k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 3.3uH | Inductor_SMD:L_1210_3225Metric | L2 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 5 | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 5k | Resistor_SMD:R_0402_1005Metric | R26 |
| 1 | 6.8k | Resistor_SMD:R_0402_1005Metric | R23 |
| 1 | 600 | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | Antenna | BPP_Lib:ANT_1575AT_JOT-M | AE1 |
| 1 | Conn_01x07_Socket | BPP_Lib:Molex_ 1718570007 | J4 |
| 1 | DNF | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | LED_Small | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LM66100DCKR | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U7 |
| 1 | LM66200DRLR | BPP_Lib:SOT-5X3_DRL_TEX | U6 |
| 1 | LOGO | BPP_Lib:scissors-art | G*** |
| 1 | LTC4065EDC-TRMPBF | BPP_Lib:DFN-6_DC_LIT | U8 |
| 1 | LoRa-E5 | BPP_Lib:LoRa-E5 | U12 |
| 1 | MAX-M10S | RF_GPS:ublox_MAX | U2 |
| 1 | MIC5504-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | MS5607-02BA | Package_LGA:LGA-8_3x5mm_P1.25mm | U1 |
| 1 | Micro_SD_Card_Det1 | Connector_Card:microSD_HC_Molex_104031-0811 | J2 |
| 1 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965 | H4 |
| 1 | PJA3432_R1_00001 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | SW_SPDT | BPP_Lib:CAS-120TB_NDC-M | SW1 |
| 1 | TMP1075DSG | Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm_ThermalVias | U3 |
| 1 | TPSM33625FRDNR | BPP_Lib:RDN0011A-MFG-NO-VIA | U4 |
| 1 | U.Fl | Connector_Coaxial:U.FL_Molex_MCRF_73412-0110_Vertical | J1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:TSOT-23-6 | D1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J5 |
The 68 most common of 69 parts.
Questions
How big is the Digital PCB?
It measures 48 × 40 mm and has 6 copper layers, 1.56 mm thick.
What parts does the Digital use?
69 parts, built around the LORA-E5-HF, TPSM33625FRDNR, TMP1075DSG and MAX-M10S. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Digital KiCad files?
From the UMDBPP/Terminator repository on GitHub, at the commit this page was made from: the board is Hardware/T1100/Digital/Digital.kicad_pcb and its schematic Hardware/T1000/Cutdown_Power/cutdown/cutdown.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Digital design in my own project?
Its repository states no licence, so its author keeps all rights: ask UMDBPP before reusing the design.
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