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1N6277A-E3
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Vishay Intertech TVS, DO-27. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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1N6277A-E3
Vishay Intertech · TVS · DO-27
1N6277A-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 end of the unidirectional TVS diode, marked by the color band; 1N6277A has VWM 15.3 V, VBR 17.1 V to 18.9 V at 1.0 mA, and VC 25.2 V max at IPPM 59.5 A. |
| 2 | A | passive | Anode end of the unidirectional TVS diode (no band); 1500 W peak pulse power with a 10/1000 μs waveform, and operating junction temperature range of -55 to +175 °C. |
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 | VBR | 17.1 | 18.9 | V | at IT = 1.0 mA | 2 | |
| Test current | IT | 1 | mA | 2 | |||
| Stand-off voltage | VWM | 15.3 | V | 2 | |||
| Maximum reverse leakage | ID | 1 | μA | at VWM | 2 | ||
| Maximum peak pulse current | IPPM | 59.5 | A | 10/1000 μs waveform | 2 | ||
| Maximum clamping voltage | VC | 25.2 | V | at IPPM | 2 | ||
| Maximum temperature coefficient of VBR | 0.089 | %/°C | 2 | ||||
| Peak pulse power dissipation | PPPM | 1500 | W | 10/1000 μs waveform, TA = 25 °C | 1 | ||
| Power dissipation on infinite heatsink | PD | 6.5 | W | TL = 75 °C | 1 | ||
| Peak forward surge current | IFSM | 200 | A | 8.3 ms single half sine-wave, unidirectional only | 1 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 100 A, unidirectional only, 1.5KE220A and below | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -55 | 175 | °C | 1 | ||
| Typical thermal resistance, junction to ambient | RθJA | 75 | °C/W | 3 | |||
| Typical thermal resistance, junction to lead | RθJL | 15.4 | °C/W | 3 |
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 | Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 | 1 |
CAD (KiCad official)
- Symbol:
1N6277A-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
2fa6759f40b05cc2, retrieved 2026-10-27, tier: manufacturer) - 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).
# 1N6277A-E3
**Vishay Intertech** · TVS · DO-27
1N6277A-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 end of the unidirectional TVS diode, marked by the color band; 1N6277A has VWM 15.3 V, VBR 17.1 V to 18.9 V at 1.0 mA, and VC 25.2 V max at IPPM 59.5 A. |
| 2 | A | passive | Anode end of the unidirectional TVS diode (no band); 1500 W peak pulse power with a 10/1000 μs waveform, and operating junction temperature range of -55 to +175 °C. |
## 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 | VBR | 17.1 | | 18.9 | V | at IT = 1.0 mA | 2 |
| Test current | IT | | 1 | | mA | | 2 |
| Stand-off voltage | VWM | | 15.3 | | V | | 2 |
| Maximum reverse leakage | ID | | | 1 | μA | at VWM | 2 |
| Maximum peak pulse current | IPPM | | | 59.5 | A | 10/1000 μs waveform | 2 |
| Maximum clamping voltage | VC | | | 25.2 | V | at IPPM | 2 |
| Maximum temperature coefficient of VBR | | | | 0.089 | %/°C | | 2 |
| Peak pulse power dissipation | PPPM | | | 1500 | W | 10/1000 μs waveform, TA = 25 °C | 1 |
| Power dissipation on infinite heatsink | PD | | | 6.5 | W | TL = 75 °C | 1 |
| Peak forward surge current | IFSM | | | 200 | A | 8.3 ms single half sine-wave, unidirectional only | 1 |
| Maximum instantaneous forward voltage | VF | | | 3.5 | V | at 100 A, unidirectional only, 1.5KE220A and below | 1 |
| Operating junction and storage temperature range | TJ, TSTG | -55 | | 175 | °C | | 1 |
| Typical thermal resistance, junction to ambient | RθJA | | 75 | | °C/W | | 3 |
| Typical thermal resistance, junction to lead | RθJL | | 15.4 | | °C/W | | 3 |
## 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 | Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 | 1 |
## CAD (KiCad official)
- Symbol: `1N6277A-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](docs/1n6277a-e3-datasheet.pdf) (6 pp, sha256 `2fa6759f40b05cc2`, retrieved 2026-10-27, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/1n6277a-e3-datasheet.pdf)