component
1.5KE33A
Public Made by Adomby adom
DOWO ESD And Surge Protection (TVS/ESD), DO-201. 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
markdown1.5KE33A
DOWO · ESD And Surge Protection (TVS/ESD) · DO-201
1.5KE33A from DOWO, in a DO-201. 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 | DO-201 |
| 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 (1.5KE33A, 5% device) | VBR | 31.35 | 34.65 | V | @IT = 1 mA | 3 | |
| Maximum reverse leakage | IR | 1 | uA | @VRWM = 28.2 V | 3 | ||
| Maximum reverse surge current | IPP | 32.82 | A | 3 | |||
| Maximum clamping voltage | VC | 45.7 | V | @IPP = 32.82 A | 3 | ||
| Peak power dissipation | PPP | 1500 | W | 10/1000 μs waveform | 1 | ||
| Power dissipation on infinite heatsink | PD | 6.5 | W | at TL = 75 °C | 1 | ||
| Peak forward surge current | IFSM | 200 | A | 8.3 ms single half sine-wave, unidirectional only | 1 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 100 A, unidirectional only | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
1.5KE33A - Footprint:
Diode_THT:D_DO-201AD_P15.24mm_Horizontal - 3D model: DO-201 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: DOWO datasheet (4 pp, sha256
f0f46eb9677ba9d9, 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).