component
SMBJ33AQ
Public Made by Adomby adom
Yangzhou Yangjie Elec Tech ESD And Surge Protection (TVS/ESD), DO-214AA(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 | 9d ago |
| viewers | 9d ago |
| package.json | 9d ago |
| page.json | 9d ago |
| README.md | 9d ago |
| smbj33aq-etched.glb | 9d ago |
| smbj33aq-etched.step | 9d ago |
| smbj33aq-hero.glb | 9d ago |
| smbj33aq-hero.overlay.json | 9d ago |
| smbj33aq.glb | 9d ago |
| smbj33aq.kicad_mod | 9d ago |
| smbj33aq.kicad_sym | 9d ago |
| smbj33aq.lbr | 9d ago |
| smbj33aq.step | 9d ago |
SMBJ33AQ
Yangzhou Yangjie Elec Tech · ESD And Surge Protection (TVS/ESD) · DO-214AA(SMB)
SMBJ33AQ from Yangzhou Yangjie Elec Tech, in a DO-214AA(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 | K | passive | Cathode terminal, marked by the band on the uni-directional SMBJ33AQ, which is the end connected to the protected positive line (VRWM 33 V, VBR 36.7-40.6 V at 1 mA). |
| 2 | A | passive | Anode terminal, the unmarked end of the uni-directional SMBJ33AQ, which is normally connected to ground or the return line (clamping voltage 53.3 V at 11.3 A IPP). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | DO-214AA(SMB) |
| 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 |
|---|---|---|---|---|---|---|---|
| Breakdown Voltage | VBR | 36.7 | 40.6 | V | @ IT = 1 mA | 2 | |
| Maximum Reverse Leakage | IR | 1 | μA | @ VRWM | 2 | ||
| Working Peak Reverse Voltage | VRWM | 33 | V | 2 | |||
| Maximum Reverse Surge Current | IPP | 11.3 | A | Surge waveform per Fig.3 and derated per Fig.2 | 2 | ||
| Maximum Clamping Voltage | Vc | 53.3 | V | @ IPP | 2 | ||
| Maximum instantaneous forward voltage | VF | 3.5 | V | at 50A for unidirectional only | 1 | ||
| Peak pulse power dissipation | PPPM | 600 | W | with a 10/1000us waveform | 1 | ||
| Power dissipation | PD | 5 | W | on infinite heat sink at TL=75℃ | 1 | ||
| Peak forward surge current | IFSM | 100 | A | 8.3 ms single half sine-wave unidirectional only | 1 | ||
| Operating junction temperature | TJ | -55 | 175 | ℃ | 1 | ||
| Storage temperature range | TSTG | -55 | 175 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJL | 20 | ℃/W | junction to lead | 3 | ||
| Thermal resistance junction to ambient | RθJA | 100 | ℃/W | junction to ambient | 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 | 3 | |
| contacts | tin | ● Terminals: Matte tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |
CAD (KiCad official)
- Symbol:
SMBJ33AQ - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files:
smbj33aq-etched.step/smbj33aq-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj33aq.step/smbj33aq.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256
c858e6d6adc08fc3, 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).