component
SMCJ8.5CA
Public Made by Adomby adom
Taisko ESD And Surge Protection (TVS/ESD), SMC(DO-214AB). Pinout reviewed by a person 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
markdownSMCJ8.5CA
Taisko · ESD And Surge Protection (TVS/ESD) · SMC(DO-214AB)
SMCJ8.5CA from Taisko, 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 | Terminal 1 | passive | Bidirectional TVS terminal (no polarity) with 8.5 V reverse standoff voltage, 9.44-10.4 V breakdown at 1 mA, and 14.4 V maximum clamping at 104.2 A peak pulse current. |
| 2 | Terminal 2 | passive | Bidirectional TVS terminal (no polarity) with 8.5 V reverse standoff voltage, 9.44-10.4 V breakdown at 1 mA, and 14.4 V maximum clamping at 104.2 A peak pulse current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Taisko |
| 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 (min) | VBR | 9.44 | 10.4 | V | @ IT = 1 mA (test current, same row) | 3 | |
| Maximum Clamping Voltage | VC | 14.4 | V | @ IPP = 104.2 A (same row) | 3 | ||
| Maximum Peak Pulse Current | IPP | 104.2 | A | 3 | |||
| Maximum Reverse Leakage Current | IR | 20 | μA | @ VR = 8.5 V (same row) | 3 | ||
| Peak Pulse Power Dissipation | PPPM | 1500 | W | Note1, Note2 (as printed) | 3 | ||
| Steady State Power Dissipation | PD | 6.5 | W | Note3 (as printed) | 3 | ||
| Peak Forward Surge Current | IFSM | 200 | A | Note4 (as printed) | 3 | ||
| Operating Temperature Range | TJ | -55 | 150 | ℃ | 3 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 3 | ||
| Reverse Stand-off Voltage | VR | 8.5 | V | Printed as single value for SMCJ8.5CA; no min/max given | 3 | ||
| Typical Thermal Resistance Junction to Lead | RθJL | 15 | ℃/W | 3 | |||
| Typical Thermal Resistance Junction to Ambient | RθJA | 75 | ℃/W | 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 |
|---|---|---|---|---|
| contacts | tin | Lead Finish: Matte Tin Case Material: Epoxy Molding Compound. | 1 |
CAD (KiCad official)
- Symbol:
SMCJ8.5CA - Footprint:
Diode_SMD:D_SMC - 3D model: SMC(DO-214AB) (KiCad packages3D, STEP)
- 3D model files:
smcj8-5ca-etched.step/smcj8-5ca-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smcj8-5ca.step/smcj8-5ca.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Taisko datasheet (8 pp, sha256
bb76d9c11f3fc36a, retrieved 2026-10-22, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).