SMCJ28AQ
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech ESD And Surge Protection (TVS/ESD), DO-214AB(SMC). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
| Name | Last updated |
|---|---|
| docs | 21d ago |
| viewers | 2d ago |
| package.json | 21d ago |
| page.json | 21d ago |
| README.md | 21d ago |
| smcj28aq-etched.glb | 21d ago |
| smcj28aq-etched.step | 21d ago |
| smcj28aq-hero.glb | 21d ago |
| smcj28aq-hero.overlay.json | 21d ago |
| smcj28aq.glb | 21d ago |
| smcj28aq.kicad_mod | 21d ago |
| smcj28aq.kicad_sym | 2d ago |
| smcj28aq.lbr | 2d ago |
| smcj28aq.step | 21d ago |
SMCJ28AQ
Yangzhou Yangjie Elec Tech · ESD And Surge Protection (TVS/ESD) · DO-214AB(SMC)
SMCJ28AQ from Yangzhou Yangjie Elec Tech, in a DO-214AB(SMC). 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 | Yangzhou Yangjie Elec Tech |
| Package | DO-214AB(SMC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Peak power dissipation, 10/1000 µs waveform | PPPM | 1500 | W | 10/1000 µs waveform (notes 1, 2) | 1 | ||
| Power dissipation, infinite heat sink at TL=75℃ | PD | 6.5 | W | infinite heat sink at TL=75℃ (note 2) | 1 | ||
| Peak forward surge current, 8.3 ms single half sine-wave, unidirectional only | IFSM | 200 | A | 8.3 ms single half sine-wave, unidirectional only (note 3) | 1 | ||
| Operating junction temperature range | TJ | -55 | 175 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 175 | ℃ | 1 | ||
| Maximum instantaneous forward voltage, unidirectional only | VFM | 3.5 | V | at 100 A, unidirectional only (note 4) | 1 | ||
| Breakdown voltage VBR (SMCJ28AQ) | VBR | 31.1 | 34.4 | V | IT = 1 mA (pulse test tp≤50 ms, note 5) | 2 | |
| Maximum reverse leakage current (SMCJ28AQ) | IR | 1 | µA | @ VRWM = 28 V | 2 | ||
| Maximum reverse surge current (SMCJ28AQ) | IPP | 33 | A | surge waveform per Fig.3, derated per Fig.2 (note 7) | 2 | ||
| Maximum clamping voltage (SMCJ28AQ) | VC | 45.4 | V | @ IPP = 33.0 A | 2 | ||
| Thermal resistance, junction to ambient | RθJ-A | 75 | ℃/W | junction to ambient; mounted on minimum recommended pad layout (note 9) | 3 | ||
| Thermal resistance, junction to lead | RθJ-L | 15 | ℃/W | junction to lead | 3 |
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 |
|---|---|---|---|---|
| housing | black | 4. Body color: Black | 4 | |
| contacts | tin | ● Terminals: Matte tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
SMCJ28AQ - Footprint:
Diode_SMD:D_SMC - 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
- 3D model files:
smcj28aq-etched.step/smcj28aq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smcj28aq.step/smcj28aq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (7 pp, sha256
bc358d52c706a87f, retrieved 2026-10-16, 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).