component
5KP78CA 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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5KP78CA TB
YFW · ESD And Surge Protection (TVS/ESD) · R-6
5KP78CA 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 | 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 | 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 86.7 | 95.8 | V | @IT = 5 mA, TA=25°C | 3 | |
| Reverse Stand-off Voltage | VRWM | 78 | V | TA=25°C | 3 | ||
| Maximum Clamping Voltage | VC | 126 | V | @IPP = 39.68 A | 3 | ||
| Maximum Peak Pulse Current | IPP | 39.68 | A | 10/1000µs waveform | 3 | ||
| Maximum Reverse Leakage | IR | 5 | µA | @VRWM | 3 | ||
| Test Current | IT | 5 | mA | TA=25°C | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 5000 | W | 10/1000us waveform, TA=25°C | 1 | ||
| Power Dissipation on Infinite Heat Sink | PM(AV) | 8 | W | TL=75°C | 1 | ||
| Peak Forward Surge Current | IFSM | 500 | A | 8.3ms single half sine wave | 1 | ||
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | 150 | °C | 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 compliant | 1 |
CAD (KiCad official)
- Symbol:
5KP78CA 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 (6 pp, sha256
09772f83fcbab7f5, 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).
# 5KP78CA TB
**YFW** · ESD And Surge Protection (TVS/ESD) · R-6
5KP78CA 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 | 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 | 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 86.7 | | 95.8 | V | @IT = 5 mA, TA=25°C | 3 |
| Reverse Stand-off Voltage | VRWM | | 78 | | V | TA=25°C | 3 |
| Maximum Clamping Voltage | VC | | | 126 | V | @IPP = 39.68 A | 3 |
| Maximum Peak Pulse Current | IPP | | | 39.68 | A | 10/1000µs waveform | 3 |
| Maximum Reverse Leakage | IR | | | 5 | µA | @VRWM | 3 |
| Test Current | IT | | 5 | | mA | TA=25°C | 3 |
| Peak Pulse Power Dissipation | PPPM | | | 5000 | W | 10/1000us waveform, TA=25°C | 1 |
| Power Dissipation on Infinite Heat Sink | PM(AV) | | | 8 | W | TL=75°C | 1 |
| Peak Forward Surge Current | IFSM | | | 500 | A | 8.3ms single half sine wave | 1 |
| Operating Junction and Storage Temperature Range | TJ,TSTG | -55 | | 150 | °C | | 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 compliant | 1 |
## CAD (KiCad official)
- Symbol: `5KP78CA 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/5kp78ca-tb-datasheet.pdf) (6 pp, sha256 `09772f83fcbab7f5`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band 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/5kp78ca-tb-datasheet.pdf)