component
TPSMB27A
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), 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.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 23d ago |
| viewers | 1d ago |
| package.json | 23d ago |
| page.json | 23d ago |
| README.md | 23d ago |
| tpsmb27a-etched.glb | 23d ago |
| tpsmb27a-etched.step | 23d ago |
| tpsmb27a-hero.glb | 23d ago |
| tpsmb27a-hero.overlay.json | 23d ago |
| tpsmb27a.glb | 23d ago |
| tpsmb27a.kicad_mod | 23d ago |
| tpsmb27a.kicad_sym | 1d ago |
| tpsmb27a.lbr | 1d ago |
| tpsmb27a.step | 23d ago |
TPSMB27A
Littelfuse · ESD And Surge Protection (TVS/ESD) · DO-214AA
TPSMB27A from Littelfuse, in a 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 | Littelfuse |
| Package | 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VR | 23.1 | V | Uni-directional TPSMB27A; datasheet defines VR as the maximum voltage that can be applied without operation | 2 | ||
| Breakdown voltage (minimum) | VBR | 25.7 | V | @ IT 1 mA | 2 | ||
| Breakdown voltage (maximum) | VBR | 28.4 | V | @ IT 1 mA | 2 | ||
| Maximum clamping voltage | VC | 37.5 | V | @ Ipp 16.3 A | 2 | ||
| Maximum peak pulse current | Ipp | 16.3 | A | 2 | |||
| Maximum reverse leakage current | IR | 1 | µA | @ VR | 2 | ||
| Maximum temperature coefficient of VBR | 0.092 | %/C | 2 | ||||
| Peak pulse power dissipation | PPPM | 600 | W | 10/1000µs waveform (Fig.1)(Note 1), (Note 2) | 1 | ||
| Power dissipation on infinite heat sink | PM(AV) | 5 | W | at TL = 50°C | 1 | ||
| Peak forward surge current | IFSM | 100 | A | 8.3 ms single half sine wave (Note 3) | 1 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 50 A, unidirectional only | 1 | ||
| Operating junction temperature range | TJ | -65 | 175 | °C | VBR ≤ 91 V | 1 | |
| Storage temperature range | TSTG | -65 | 175 | °C | 1 | ||
| Typical thermal resistance junction to lead | RθJL | 20 | °C/W | Typical | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 100 | °C/W | Typical | 1 |
CAD (KiCad official)
- Symbol:
TPSMB27A - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA (KiCad packages3D, STEP)
- 3D model files:
tpsmb27a-etched.step/tpsmb27a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpsmb27a.step/tpsmb27a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
51fb626cd3928e87, retrieved 2026-10-14, 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).