component
TPSMD33CA
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), DO-214AB. 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
markdownTPSMD33CA
Littelfuse · ESD And Surge Protection (TVS/ESD) · DO-214AB
TPSMD33CA from Littelfuse, in a DO-214AB. 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-214AB |
| 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 (bidirectional, TPSMD33CA) | VBR | 36.7 | 40.6 | V | @ IT = 1 mA | 2 | |
| Maximum Clamping Voltage | VC | 53.3 | V | @ Ipp | 2 | ||
| Maximum Peak Pulse Current | Ipp | 56.3 | A | 2 | |||
| Maximum Reverse Leakage Current | IR | 2 | µA | @ VR | 2 | ||
| Reverse Stand-off Voltage | VR | 33 | V | 2 | |||
| Peak Pulse Power Dissipation | PPPM | 3000 | W | 10/1000µs waveform (Fig.2) (Notes 1, 2) | 1 | ||
| Power Dissipation on Infinite Heat Sink | PM(AV) | 6.5 | W | at TA = 50°C | 1 | ||
| Peak Forward Surge Current | IFSM | 300 | A | 8.3 ms single half sine wave (Note 3) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 15 | °C/W | 1 | |||
| Typical Thermal Resistance Junction to Ambient | RθJA | 75 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
TPSMD33CA - Footprint:
Diode_SMD:D_SMC - 3D model: DO-214AB (KiCad packages3D, STEP)
- 3D model files:
tpsmd33ca-etched.step/tpsmd33ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpsmd33ca.step/tpsmd33ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
778e34f01000b1a4, 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).