component
P4KE550CA-HF
Public Made by Adomby adom
Comchip TVS, DO-41. 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
markdownP4KE550CA-HF
Comchip · TVS · DO-41
P4KE550CA-HF from Comchip, in a DO-41. 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 | A1 | passive | Bidirectional TVS terminal 1 (no polarity, no color band on bipolar parts); P4KE550CA breakdown 522.50 to 577.50 V at 1 mA, VRWM 470.3 V, max clamping 759.0 V at IPP. |
| 2 | A2 | passive | Bidirectional TVS terminal 2 (interchangeable with terminal 1, no cathode band on bipolar parts); 400 W peak pulse power at 10/1000 µs, solderable axial lead 1.000 in (25.40 mm) min. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Comchip |
| Package | DO-41 |
| 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 | 522.5 | 577.5 | V | @ IT = 1 mA | 3 | |
| Test current | IT | 1 | mA | VBR test | 3 | ||
| Working peak reverse voltage | VRWM | 470.3 | V | 3 | |||
| Maximum clamping voltage | VC | 759 | V | @IPP | 3 | ||
| Maximum surge current | IPP | 0.53 | A | 10/1000μs waveform | 3 | ||
| Breakdown voltage tolerance (suffix A) | -5 | 5 | % | Suffix A denotes 5% tolerance devices | 3 | ||
| Peak power dissipation | PPP | 400 | W | 10/1000μs waveform, TA=25°C | 1 | ||
| Steady state power dissipation | PD | 1 | W | Infinite heatsink at TL=75°C | 1 | ||
| Operating junction and storage temperature | TJ, TSTG | -55 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
P4KE550CA-HF - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Comchip datasheet (4 pp, sha256
32615a418c4024be, retrieved 2026-10-23, tier: lcsc) - 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).