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UF204
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SUNMATE Elec Fast Recovery / High Efficiency Diodes, DO-15. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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UF204
SUNMATE Elec · Fast Recovery / High Efficiency Diodes · DO-15
UF204 from SUNMATE Elec, in a DO-15. 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, identified by the cathode band on the DO-15 body; the diode blocks up to 400V (UF204 VRRM) and the datasheet gives only the band polarity marking. |
| 2 | A | passive | Anode terminal of the DO-15 axial diode, conducting 2.0A average rectified output current at TA=55°C when forward biased. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SUNMATE Elec |
| Package | DO-15 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Average Rectified Output Current | IO | 2 | A | @TA = 55°C, leads at 9.5mm from case (Note 1) | 1 | ||
| Non-Repetitive Peak Forward Surge Current | IFSM | 60 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 | ||
| Peak Reverse Current | IRM | 5 | µA | @TA = 25°C, at rated DC blocking voltage | 1 | ||
| Peak Reverse Current | IRM | 100 | µA | @TA = 100°C, at rated DC blocking voltage | 1 | ||
| Operating Temperature Range | Tj | -65 | 125 | °C | 1 | ||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 1 |
CAD (KiCad official)
- Symbol:
UF204 - Footprint:
Diode_THT:D_DO-15_P12.70mm_Horizontal - 3D model: DO-15 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SUNMATE Elec datasheet (2 pp, sha256
c74ebe987ae368f4, retrieved 2026-10-22, tier: lcsc) - 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).
# UF204
**SUNMATE Elec** · Fast Recovery / High Efficiency Diodes · DO-15
UF204 from SUNMATE Elec, in a DO-15. 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, identified by the cathode band on the DO-15 body; the diode blocks up to 400V (UF204 VRRM) and the datasheet gives only the band polarity marking. |
| 2 | A | passive | Anode terminal of the DO-15 axial diode, conducting 2.0A average rectified output current at TA=55°C when forward biased. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SUNMATE Elec |
| Package | DO-15 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Average Rectified Output Current | IO | | | 2 | A | @TA = 55°C, leads at 9.5mm from case (Note 1) | 1 |
| Non-Repetitive Peak Forward Surge Current | IFSM | | | 60 | A | 8.3ms single half sine-wave superimposed on rated load (JEDEC Method) | 1 |
| Peak Reverse Current | IRM | | | 5 | µA | @TA = 25°C, at rated DC blocking voltage | 1 |
| Peak Reverse Current | IRM | | | 100 | µA | @TA = 100°C, at rated DC blocking voltage | 1 |
| Operating Temperature Range | Tj | -65 | | 125 | °C | | 1 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 1 |
## CAD (KiCad official)
- Symbol: `UF204`
- Footprint: `Diode_THT:D_DO-15_P12.70mm_Horizontal`
- 3D model: DO-15 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [SUNMATE Elec datasheet](docs/uf204-datasheet.pdf) (2 pp, sha256 `c74ebe987ae368f4`, retrieved 2026-10-22, tier: lcsc)
- **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/uf204-datasheet.pdf)