SMDJ33CA
Public Made by Adomby adom
hongjiacheng ESD And Surge Protection (TVS/ESD), SMC(DO-214AB). Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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README
markdownSMDJ33CA
hongjiacheng · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMDJ33CA from hongjiacheng, in a SMC(DO-214AB). 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 | hongjiacheng |
| Package | SMC(DO-214AB) |
| 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 (Bidirectional, min) | VBR | 36.7 | V | @IT 1 mA | 3 | ||
| Breakdown Voltage (Bidirectional, max) | VBR | 40.6 | V | @IT 1 mA | 3 | ||
| Maximum Clamping Voltage | VC | 53.3 | V | @IPP 56.3 A | 3 | ||
| Reverse Leakage Current | IR | 2 | µA | @VRWM 33 V | 3 | ||
| Peak Pulse Current | IPP | 56.3 | A | 10/1000µs waveform | 3 | ||
| Reverse Stand-Off Voltage | VRWM | 33 | V | 3 | |||
| Typical maximum temperature coefficient of VBR | ΔVBR | 0.1 | % VBR@25℃ per ℃ | ΔT referenced to VBR@25℃ | 1 | ||
| Peak Pulse Power Dissipation | PPPM | 3000 | W | 10/1000µs waveform (Fig.1) (Notes 1, 2) | 1 | ||
| Power Dissipation on Infinite Heat Sink | PM(AV) | 6.5 | W | Ta=75°C (Fig.5) | 1 | ||
| Peak Forward Surge Current | IFSM | 300 | A | 8.3ms single half sine wave (Note 3, Fig.5) | 1 | ||
| Operating Junction and Storage Temperature Range | TJ, TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal resistance junction to lead | RθJ-L | 15 | ℃/W | 1 | |||
| Thermal resistance junction to ambient | RθJ-A | 75 | ℃/W | 1 |
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 |
|---|---|---|---|---|
| contacts | tin | •Matte tin lead-free Plated •Meets MSL level 1, per J-STD-020 | 1 |
CAD (KiCad official)
- Symbol:
SMDJ33CA - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smdj33ca-etched.step/smdj33ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smdj33ca.step/smdj33ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: hongjiacheng datasheet (5 pp, sha256
a3e249276a89ca63, retrieved 2026-10-21, 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).