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UF104
Public Made by Adomby adom
SUNMATE Elec Fast Recovery / High Efficiency Diodes, DO-41. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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UF104
SUNMATE Elec · Fast Recovery / High Efficiency Diodes · DO-41
UF104 from SUNMATE Elec, in a DO-41. 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 lead on the end of the body marked with the cathode band; UF104 blocks up to 400 V (VRRM/VRWM/VR) and passes 1.0 A average rectified current at TA = 55C. |
| 2 | A | passive | Anode, the lead on the end opposite the cathode band; peak forward surge current is 30 A (8.3 ms half sine-wave) and forward voltage is 1.3 V at IF = 1.0 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SUNMATE Elec |
| Package | DO-41 |
| Category | Diodes |
| Pins | 2 |
CAD (KiCad official)
- Symbol:
UF104 - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SUNMATE Elec datasheet (2 pp, sha256
4c8ad4cb60f1a8ea, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# UF104
**SUNMATE Elec** · Fast Recovery / High Efficiency Diodes · DO-41
UF104 from SUNMATE Elec, in a DO-41. 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 lead on the end of the body marked with the cathode band; UF104 blocks up to 400 V (VRRM/VRWM/VR) and passes 1.0 A average rectified current at TA = 55C. |
| 2 | A | passive | Anode, the lead on the end opposite the cathode band; peak forward surge current is 30 A (8.3 ms half sine-wave) and forward voltage is 1.3 V at IF = 1.0 A. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SUNMATE Elec |
| Package | DO-41 |
| Category | Diodes |
| Pins | 2 |
## CAD (KiCad official)
- Symbol: `UF104`
- Footprint: `Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal`
- 3D model: DO-41 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SUNMATE Elec datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603103882918838272) (2 pp, sha256 `4c8ad4cb60f1a8ea`, retrieved 2026-10-13, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/uf104-datasheet.pdf)