component
SMDJ40CA
Public Made by Adomby adom
BORN TVS, 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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PCB Footprint
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Datasheet
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Contents
README
markdownSMDJ40CA
BORN · TVS · SMC(DO-214AB)
SMDJ40CA from BORN, 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 | BORN |
| 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 SMDJ40CA) | VBR | 44.4 | 49.1 | V | IT = 1 mA | 3 | |
| Maximum Clamping Voltage | VC | 64.5 | V | @ Ipp = 46.5 A | 3 | ||
| Maximum Peak Pulse Current | IPP | 46.5 | A | 3 | |||
| Maximum Reverse Leakage Current | IR | 2 | uA | @ VR = 40 V | 3 | ||
| Reverse Stand-Off Voltage (peak off-state voltage) | VR | 40 | V | Maximum voltage that can be applied while maintaining off state (SMDJ40CA) | 2 | ||
| Peak Pulse Power Dissipation | PPPM | 3000 | W | Non-repetitive 10/1000us waveform (Note1,2) | 2 | ||
| Steady State Power Dissipation | PD | 6.5 | W | Infinite heat sink at TA=50◦C (Note3) | 2 | ||
| Peak Forward Surge Current | IFSM | 300 | A | 8.3ms single half sine wave or equivalent square wave (Note4) | 2 | ||
| Operating Junction Temperature Range | TJ | -55 | 150 | ◦C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ◦C | 2 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 15 | ◦C/W | Typical | 2 | ||
| Typical Thermal Resistance Junction to Ambient | RθJA | 75 | ◦C/W | Typical | 2 |
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 | • Lead Finish: Matte Tin • Case Material: Epoxy Molding Compound | 1 |
CAD (KiCad official)
- Symbol:
SMDJ40CA - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smdj40ca-etched.step/smdj40ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smdj40ca.step/smdj40ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BORN datasheet (7 pp, sha256
7bcff7cf226cf87c, 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).