component
TPSMB33AHE3_A
Public Made by Adomby adom
Vishay Intertech TVS, SMB(DO-214AA). Pinout cross-checked by two models against the datasheet, 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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Contents
README
markdownTPSMB33AHE3_A
Vishay Intertech · TVS · SMB(DO-214AA)
TPSMB33AHE3_A from Vishay Intertech, 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 terminal, marked by the color band on the SMB (DO-214AA) body; unidirectional device, connect to the positive/protected line (VWM 28.2 V, VBR 31.4 V to 34.7 V at 1 mA for TPSMB33A). |
| 2 | A | passive | Anode terminal at the end opposite the cathode band; unidirectional device, connect to ground/return (600 W peak pulse power with 10/1000 μs waveform). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SMB(DO-214AA) |
| Category | TVS/Fuse/Board Level 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 | VBR | 31.4 | 33 | 34.7 | V | at IT = 1 mA, TA = 25 °C | 2 |
| Test current | IT | 1 | mA | TA = 25 °C | 2 | ||
| Stand-off voltage | VWM | 28.2 | V | TA = 25 °C | 2 | ||
| Maximum reverse leakage at VWM | IR | 1 | μA | at VWM, TA = 25 °C | 2 | ||
| Maximum reverse leakage at VWM, TJ = 150 °C | ID | 5 | μA | at VWM, TJ = 150 °C | 2 | ||
| Maximum peak pulse surge current | IPPM | 13.1 | A | 10/1000 μs waveform, fig. 3 | 2 | ||
| Maximum clamping voltage | VC | 45.7 | V | at IPPM | 2 | ||
| Typical temperature coefficient of VBR | αT | 0.089 | %/°C | 2 | |||
| Peak pulse power dissipation | PPPM | 600 | W | 10/1000 μs waveform (fig. 1), TA = 25 °C | 1 | ||
| Peak forward surge current | IFSM | 75 | A | 8.3 ms single half sine-wave, TA = 25 °C | 1 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 50 A, TA = 25 °C | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -65 | 185 | °C | 1 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 | 1 |
CAD (KiCad official)
- Symbol:
TPSMB33AHE3_A - Footprint:
Diode_SMD:D_SMB - 3D model: SMB(DO-214AA) (KiCad packages3D, STEP)
- 3D model files:
tpsmb33ahe3-a-etched.step/tpsmb33ahe3-a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpsmb33ahe3-a.step/tpsmb33ahe3-a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (5 pp, sha256
46356b483a7d4f56, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(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).