component
1.5KE91CA
Public Made by Adomby adom
Liown 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
markdown1.5KE91CA
Liown · ESD And Surge Protection (TVS/ESD) · DO-201
1.5KE91CA from Liown, 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 | Liown |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-Off Voltage (Uni./Bi.) | VR | 77.8 | V | 1.5KE91CA (bidirectional); printed 77.80 | 3 | ||
| Breakdown Voltage Min | VB | 86.5 | V | @IT 1 mA | 3 | ||
| Breakdown Voltage Max | VB | 95.5 | V | @IT 1 mA | 3 | ||
| Maximum Clamping Voltage | VC | 125 | V | @IPP 12.2 A | 3 | ||
| Reverse Leakage Current | IR | 1 | μA | @VR 77.80 V | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 1500 | W | 10/1000μs waveform (Note1, Note2, Fig.1) | 1 | ||
| Steady State Power Dissipation | PM(AV) | 6.5 | W | TL=75℃ (Fig.5) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ、TSTG | -55 | 150 | ℃ | Operating junction and storage | 1 | |
| Typical Thermal Resistance Junction to Lead | RθJL | 20 | ℃/W | Typical, junction to lead | 1 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 75 | ℃/W | Typical, junction to ambient | 1 |
CAD (KiCad official)
- Symbol:
1.5KE91CA - 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: Liown datasheet (6 pp, sha256
b3bcee92a1eabbdd, retrieved 2026-10-13, 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).