component
TPSMBJ54A
Public Made by Adomby adom
DOWO TVS, SMB(DO-214AA). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPSMBJ54A
DOWO · TVS · SMB(DO-214AA)
TPSMBJ54A from DOWO, in a SMB(DO-214AA). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOWO |
| Package | SMB(DO-214AA) |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Breakdown voltage (min) | VBR | 60 | V | @ IT = 1 mA | 3 | ||
| Breakdown voltage (max) | VBR | 66.3 | V | @ IT = 1 mA | 3 | ||
| Maximum reverse leakage | IR | 1 | uA | @ VRWM | 3 | ||
| Maximum clamping voltage | VC | 87.1 | V | @IPP | 3 | ||
| Maximum reverse surge current | IPP | 6.89 | A | 3 | |||
| Working peak reverse voltage | VRWM | 54 | V | 3 | |||
| Peak power dissipation | PPP | 600 | W | 10/1000μs waveform | 1 | ||
| Power dissipation on infinite heatsink | PD | 5 | W | TL = 75 °C | 1 | ||
| Peak forward surge current | IFSM | 100 | A | 8.3 ms single half sine-wave, unidirectional only | 1 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 50 A, unidirectional only | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
TPSMBJ54A - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
tpsmbj54a-etched.step/tpsmbj54a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpsmbj54a.step/tpsmbj54a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (3 pp, sha256
9bd44bbeccc01876, retrieved 2026-10-29, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).