component
1.5KE27A-E3
Public Made by Adomby adom
Vishay Intertech ESD And Surge Protection (TVS/ESD), DO-27. 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
markdown1.5KE27A-E3
Vishay Intertech · ESD And Surge Protection (TVS/ESD) · DO-27
1.5KE27A-E3 from Vishay Intertech, in a DO-27. 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 | Vishay Intertech |
| Package | DO-27 |
| 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 at IT | VBR | 25.7 | 28.4 | V | IT = 1.0 mA, 1.5KE27A (1N6281A), uni-directional | 2 | |
| Maximum reverse leakage at VWM | ID | 1 | μA | At VWM = 23.1 V | 2 | ||
| Maximum peak pulse current | IPPM | 40 | A | 10/1000 μs surge waveform per Fig. 3 (note 2) | 2 | ||
| Maximum clamping voltage at IPPM | VC | 37.5 | V | At IPPM = 40.0 A | 2 | ||
| Maximum temperature coefficient of VBR | 0.096 | %/°C | Maximum temperature coefficient of VBR for 1.5KE27A | 2 | |||
| Maximum instantaneous forward voltage | VF | 3.5 | V | At 100 A, uni-directional only; 3.5 V applies to 1.5KE220A and below (note 3) | 1 | ||
| Peak pulse power dissipation | PPPM | 1500 | W | 10/1000 μs waveform (note 1), fig. 1 | 1 | ||
| Peak pulse current | IPPM | 40 | A | 10/1000 μs waveform (note 1), see next table (1.5KE27A) | 1 | ||
| Power dissipation | PD | 6.5 | W | Infinite heatsink at TL = 75 °C (fig. 5) | 1 | ||
| Peak forward surge current | IFSM | 200 | A | 8.3 ms single half sine-wave, uni-directional only (note 2) | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 175 | °C | Operating junction and storage | 1 | |
| Typical thermal resistance, junction to ambient | RθJA | 75 | °C/W | Typical | 3 | ||
| Typical thermal resistance, junction to lead | RθJL | 15.4 | °C/W | Typical | 3 |
CAD (KiCad official)
- Symbol:
1.5KE27A-E3 - Footprint:
Diode_THT:D_DO-27_P15.24mm_Horizontal - 3D model: DO-27 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (6 pp, sha256
7dfc9d6c0628f570, 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).