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SMCJ48CAQ

Yangzhou Yangjie Elec Tech · ESD And Surge Protection (TVS/ESD) · DO-214AB(SMC)

SMCJ48CAQ from Yangzhou Yangjie Elec Tech, in a DO-214AB(SMC). 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 A1 passive Bi-directional TVS terminal with no polarity marking; SMCJ48CAQ has 48 V working peak reverse voltage, 53.3 V to 58.9 V breakdown at 1 mA, and 77.4 V maximum clamping at 19.4 A.
2 A2 passive Second bi-directional TVS terminal with no polarity marking, interchangeable with the other terminal; rated for 1500 W peak pulse power with a 10/1000 µs waveform.

Key specifications

Parameter Value
Manufacturer Yangzhou Yangjie Elec Tech
Package DO-214AB(SMC)
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 53.3 58.9 V @ IT = 1 mA 3
Maximum reverse leakage current IR 1 μA @ VRWM 3
Working peak reverse voltage VRWM 48 V 3
Maximum reverse surge current IPP 19.4 A 10/1000 µs waveform 3
Maximum clamping voltage Vc 77.4 V @ IPP 3
Peak power dissipation PPPM 1500 W 10/1000us waveform, Ta=25℃ 1
Power dissipation on infinite heat sink PD 6.5 W TL=75℃ 1
Operating junction temperature TJ -55 175 ℃ 1
Storage temperature range TSTG -55 175 ℃ 1
Thermal resistance junction to ambient RθJ-A 75 ℃/W junction to ambient, minimum recommended pad layout 3
Thermal resistance junction to lead RθJ-L 15 ℃/W junction to lead 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 4
contacts tin ● Terminals: Matte tin plated leads, solderable per J-STD-002 and JESD22-B102 1

CAD (KiCad official)

  • Symbol: SMCJ48CAQ
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMC) (KiCad packages3D, STEP)
  • 3D model files: smcj48caq-etched.step / smcj48caq-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smcj48caq.step / smcj48caq.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Yangzhou Yangjie Elec Tech datasheet (7 pp, sha256 bc358d52c706a87f, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF