component
SMBJ120A
Public Made by Adomby adom
GOODWORK TVS, DO-214AA(SMB). 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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Contents
README
markdownSMBJ120A
GOODWORK · TVS · DO-214AA(SMB)
SMBJ120A from GOODWORK, 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, marked by the color band on the unidirectional SMBJ120A (VRWM 120 V, VBR 133-153 V at 1 mA, VC 193 V at Ipp 3.1 A). |
| 2 | A | passive | Anode, the end opposite the color band on the unidirectional SMBJ120A (600 W peak power at 10/1000 µs). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GOODWORK |
| Package | DO-214AA(SMB) |
| Category | TVS/Fuse/Board Level 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 |
|---|---|---|---|---|---|---|---|
| Reverse Stand-off Voltage | VRWM | 120 | V | 4 | |||
| Breakdown Voltage | VBR | 133 | 153 | V | @IT = 1 mA | 4 | |
| Test Current | IT | 1 | mA | 4 | |||
| Maximum Clamping Voltage | VC | 193 | V | @Ipp | 4 | ||
| Peak Pulse Current | Ipp | 3.1 | A | 4 | |||
| Reverse Leakage Current | IR | 5 | uA | @VRWM | 4 | ||
| Peak Power Dissipation | PPK | 600 | Watts | TA=25 C, TP=1ms (Minimum) | 1 | ||
| Peak Forward Surge Current | IFSM | 100 | Amps | 8.3ms single half sine-wave superimposed on rated load (JEDEC method) | 1 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -55 | 150 | C | 1 | ||
| Typical Thermal Resistance, junction to case | RθJ-C | 20 | C/W | Between junction and case | 1 | ||
| Typical Thermal Resistance, junction to air | RθJ-A | 95 | C/W | Between junction and Air | 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 | Copper | 2. Mounted on Copper Pad area of 5.0mm (.013mm Thick) to each terminal. | 1 |
CAD (KiCad official)
- Symbol:
SMBJ120A - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files:
smbj120a-etched.step/smbj120a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smbj120a.step/smbj120a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GOODWORK datasheet (7 pp, sha256
30a80bd88d27f7ca, 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).