P6KE91A
Public Made by Adomby adom
Littelfuse ESD And Surge Protection (TVS/ESD), DO-204AC(DO-15). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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P6KE91A
Littelfuse · ESD And Surge Protection (TVS/ESD) · DO-204AC(DO-15)
P6KE91A from Littelfuse, in a DO-204AC(DO-15). 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-204AC(DO-15) |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse stand-off voltage | VR | 77.8 | V | 2 | |||
| Breakdown voltage | VBR | 86.5 | 95.5 | V | @ IT 1 mA | 2 | |
| Test current | IT | 1 | mA | test current for VBR | 2 | ||
| Maximum clamping voltage | VC | 125 | V | @ Ipp 4.9 A | 2 | ||
| Maximum peak pulse current | Ipp | 4.9 | A | 2 | |||
| Maximum reverse leakage current | IR | 1 | µA | @ VR | 2 | ||
| Peak pulse power dissipation, single die | PPPM | 600 | W | 10/1000µs test waveform (Fig.4), Note 1 | 1 | ||
| Steady state power dissipation on infinite heat sink | PD | 5 | W | at TL = 75ºC | 1 | ||
| Peak forward surge current | IFSM | 100 | A | 8.3 ms single half sine wave, unidirectional only (Note 2) | 1 | ||
| Maximum instantaneous forward voltage, single die | VF | 3.5 | V | at 50 A, unidirectional only (Note 3) | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 175 | °C | 1 | ||
| Thermal resistance junction to lead | RθJL | 20 | °C/W | typical | 1 | ||
| Thermal resistance junction to ambient | RθJA | 75 | °C/W | typical | 1 | ||
| VBR temperature coefficient | αT | 0.1 | % | VBR @ TJ = VBR@25°C x (1+αT x (TJ - 25)) | 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 | • Matte tin lead-free plated • Halogen free and RoHS | 1 |
CAD (KiCad official)
- Symbol:
P6KE91A - Footprint:
Diode_THT:D_DO-15_P12.70mm_Horizontal - 3D model: DO-204AC(DO-15) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Littelfuse datasheet (6 pp, sha256
d0708871d6da5d75, retrieved 2026-10-26, 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).