component
US3JB
Public Made by Adomby adom
Shandong Jingdao Microelectronics Fast Recovery / High Efficiency Diodes, SMB. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 11d ago |
| viewers | 11d ago |
| package.json | 11d ago |
| page.json | 11d ago |
| README.md | 11d ago |
| us3jb-etched.glb | 11d ago |
| us3jb-etched.step | 11d ago |
| us3jb-hero.glb | 11d ago |
| us3jb-hero.overlay.json | 11d ago |
| us3jb.glb | 11d ago |
| us3jb.kicad_mod | 11d ago |
| us3jb.kicad_sym | 11d ago |
| us3jb.lbr | 11d ago |
| us3jb.step | 11d ago |
US3JB
Shandong Jingdao Microelectronics · Fast Recovery / High Efficiency Diodes · SMB
US3JB from Shandong Jingdao Microelectronics, in a SMB. 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 ultrafast recovery rectifier; the datasheet gives no pin-specific electrical limits, so the device ratings in the maximum ratings table apply. |
| 2 | Anode | passive | Anode terminal of the ultrafast recovery rectifier; the datasheet gives no pin-specific electrical limits, so the device ratings in the maximum ratings table apply. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shandong Jingdao Microelectronics |
| Package | SMB |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum Repetitive Peak Reverse Voltage (US3JB column) | VRRM | 600 | V | 1 | |||
| Maximum RMS Voltage (US3JB column) | VRMS | 420 | V | 1 | |||
| Maximum DC Blocking Voltage (US3JB column) | VDC | 600 | V | 1 | |||
| Maximum Average Forward Rectified Current | IF(AV) | 3 | A | 1 | |||
| Peak Forward Surge Current | IFSM | 90 | A | 8.3 ms single half sine wave superimposed on rated load (JEDEC method) | 1 | ||
| Maximum Instantaneous Forward Voltage | VF | 1.3 | V | at IF = 3 A | 1 | ||
| Maximum DC Reverse Current at Rated DC Blocking Voltage, Ta = 25 °C | IR | 5 | μA | at rated DC blocking voltage, Ta = 25 °C | 1 | ||
| Maximum DC Reverse Current at Rated DC Blocking Voltage, Ta = 125 °C | IR | 100 | μA | at rated DC blocking voltage, Ta = 125 °C | 1 | ||
| Operating and Storage Temperature Range | Tj, Tstg | -55 | 150 | °C | 1 | ||
| Typical Thermal Resistance, junction to ambient | RθJA | 45 | °C/W | 1 | |||
| Typical Thermal Resistance, junction to case | RθJC | 15 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
US3JB - Footprint:
Diode_SMD:D_SMB - 3D model: SMB (KiCad packages3D, STEP)
- 3D model files:
us3jb-etched.step/us3jb-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);us3jb.step/us3jb.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shandong Jingdao Microelectronics datasheet (3 pp, sha256
2ae7b42c4e442220, retrieved 2026-10-15, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).