component
US1JFA
Public Made by Adomby adom
onsemi Diodes - Fast Recovery Rectifiers, SOD-123FL. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownUS1JFA
onsemi · Diodes - Fast Recovery Rectifiers · SOD-123FL
US1JFA from onsemi, in a SOD-123FL. 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 | Cathode | passive | Cathode terminal of the rectifier diode; the US1JFA blocks up to 600 V repetitive peak reverse voltage and conducts 1 A average forward current. |
| 2 | Anode | passive | Anode terminal of the rectifier diode; the US1JFA has a maximum forward voltage of 1.30 V at IF = 1 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOD-123FL |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 600 | V | TA = 25°C | 2 | ||
| RMS Reverse Voltage | VRMS | 420 | V | TA = 25°C | 2 | ||
| DC Blocking Voltage | VR | 600 | V | TA = 25°C | 2 | ||
| Average Forward Rectified Current | IF(AV) | 1 | A | TA = 25°C | 2 | ||
| Peak Forward Surge Current | IFSM | 30 | A | 8.3 ms Single Half Sine-Wave Superimposed on Rated Load | 2 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | °C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 2 | ||
| Maximum Instantaneous Forward Voltage | VF | 1.7 | V | IF = 1 A | 2 | ||
| Maximum Reverse Current at Rated VR | IR | 5 | µA | TJ = 25°C | 2 | ||
| Maximum Reverse Current at Rated VR | IR | 150 | µA | TJ = 125°C | 2 | ||
| Maximum Reverse Recovery Time | Trr | 75 | ns | IF = 0.5 A, IR = 1 A, Irr = 0.25 A | 2 | ||
| Typical Thermal Resistance, Junction to Lead | RθJL | 21 | °C/W | TA = 25°C | 2 | ||
| Typical Thermal Resistance, Junction to Ambient | RθJA | 153 | °C/W | Device mounted at minimum pad | 2 | ||
| Typical Junction Capacitance | CJ | 15 | pF | VR = 4.0 V, f = 1.0 MHz | 2 |
CAD (KiCad official)
- Symbol:
US1JFA - Footprint:
Diode_SMD:D_SOD-123F - 3D model: SOD-123FL (KiCad packages3D, STEP)
- 3D model files:
us1jfa-etched.step/us1jfa-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);us1jfa.step/us1jfa.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (5 pp, sha256
0c6bcf51cb647515, retrieved 2026-10-23, 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).