component
20KP40A TB
Public Made by Adomby adom
YFW ESD And Surge Protection (TVS/ESD), R-6. 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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20KP40A TB
YFW · ESD And Surge Protection (TVS/ESD) · R-6
20KP40A TB from YFW, in a R-6. 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | R-6 |
| 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 | VRWM | 40 | V | 2 | |||
| Breakdown voltage (min) | VBR | 44.7 | V | IT = 5 mA | 2 | ||
| Breakdown voltage (max) | VBR | 48.8 | V | IT = 5 mA | 2 | ||
| Maximum clamping voltage | VC | 67.8 | V | @IPP = 297.9 A | 2 | ||
| Maximum reverse leakage current | IR | 15 | µA | @VRWM = 40 V | 2 | ||
| Peak pulse power dissipation | PPPM | 20000 | W | 10/1000 µs waveform (NOTE 1) | 1 | ||
| Steady state power dissipation | PM(AV) | 8 | W | TL = 75 °C, lead lengths .375" (9.5mm) (NOTE 2) | 1 | ||
| Peak forward surge current | IFSM | 400 | A | 8.3 ms sine-wave superimposed on rated load, JEDEC method (NOTE 3) | 1 | ||
| Operating and storage temperature range | TJ, TSTG | -55 | 175 | °C | 1 |
CAD (KiCad official)
- Symbol:
20KP40A TB - Footprint:
Diode_THT:D_P600_R-6_P20.00mm_Horizontal - 3D model: R-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (5 pp, sha256
49b401349d891bb6, retrieved 2026-10-29, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal 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).
# 20KP40A TB
**YFW** · ESD And Surge Protection (TVS/ESD) · R-6
20KP40A TB from YFW, in a R-6. 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 | 1 | passive | Terminal 1 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised bidirectional ESD/TVS diode; either orientation. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | R-6 |
| 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 | VRWM | | 40 | | V | | 2 |
| Breakdown voltage (min) | VBR | 44.7 | | | V | IT = 5 mA | 2 |
| Breakdown voltage (max) | VBR | | | 48.8 | V | IT = 5 mA | 2 |
| Maximum clamping voltage | VC | | | 67.8 | V | @IPP = 297.9 A | 2 |
| Maximum reverse leakage current | IR | | | 15 | µA | @VRWM = 40 V | 2 |
| Peak pulse power dissipation | PPPM | 20000 | | | W | 10/1000 µs waveform (NOTE 1) | 1 |
| Steady state power dissipation | PM(AV) | | | 8 | W | TL = 75 °C, lead lengths .375" (9.5mm) (NOTE 2) | 1 |
| Peak forward surge current | IFSM | | | 400 | A | 8.3 ms sine-wave superimposed on rated load, JEDEC method (NOTE 3) | 1 |
| Operating and storage temperature range | TJ, TSTG | -55 | | 175 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `20KP40A TB`
- Footprint: `Diode_THT:D_P600_R-6_P20.00mm_Horizontal`
- 3D model: R-6 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [YFW datasheet](docs/20kp40a-tb-datasheet.pdf) (5 pp, sha256 `49b401349d891bb6`, retrieved 2026-10-29, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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/20kp40a-tb-datasheet.pdf)