component
1.5KE51A
Public Made by Adomby adom
DOWO ESD And Surge Protection (TVS/ESD), DO-201. 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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README
markdown1.5KE51A
DOWO · ESD And Surge Protection (TVS/ESD) · DO-201
1.5KE51A 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 end of the unidirectional 1.5KE51A, marked by the color band; the datasheet gives a 48.45 to 53.55 V breakdown voltage and 43.6 V working peak reverse voltage. |
| 2 | A | passive | Anode lead at the end opposite the color band; the datasheet gives a 1500 W peak pulse power rating with a 10/1000 μs waveform and 70.1 V maximum clamping voltage at 21.40 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | DOWO |
| Package | DO-201 |
| Category | Circuit Protection |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
1.5KE51A - 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 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).