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Contents

README

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5.0SMDJ33AS

Littelfuse · TVS · DO-214AB(SMCJ)

5.0SMDJ33AS from Littelfuse, in a DO-214AB(SMCJ). 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 Littelfuse
Package DO-214AB(SMCJ)
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
Reverse stand-off voltage VR 33 V 2
Breakdown voltage VBR 36.7 40.6 V @ IT (mA) = 1 2
Maximum reverse leakage current IR 2 μA @ VR (V) = 33.0 2
Maximum temperature coefficient of VBR 0.097 %/C 2
Maximum clamping voltage VC 53.3 V @IPP (10/1000μs) 2
Maximum peak pulse current IPP 93.9 A (10/1000μs) 2
Maximum clamping voltage VC 68.9 V @ IPP (8/20μs) 2
Maximum peak pulse current IPP 516.5 A (8/20μs) 2
Maximum peak pulse power dissipation PPPM 5000 W TL=25°C, 10/1000µs waveform (Fig.2) (Notes 1, 2) 1
Power dissipation on infinite heat sink PD 6.5 W TL=50°C (Note 4) 1
Peak forward surge current, 8.3ms single half sine wave IFSM 300 A 8.3ms single half sine wave (Note 3), unidirectional only 1
Maximum instantaneous forward voltage VF 3.5 V at 100A, unidirectional only 1
Operating temperature range TJ -65 150 °C 1
Storage temperature range TSTG -65 175 °C 1
Typical thermal resistance junction to lead RθJL 15 °C/W 1
Typical thermal resistance junction to ambient RθJA 75 °C/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 ■ Halogen free and RoHS 1

CAD (KiCad official)

  • Symbol: 5.0SMDJ33AS
  • Footprint: Diode_SMD:D_SMC
  • 3D model: DO-214AB(SMCJ) (KiCad packages3D, STEP)
  • 3D model files: 5-0smdj33as-etched.step / 5-0smdj33as-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 5-0smdj33as.step / 5-0smdj33as.glb are the bare package body.

Provenance

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

  • Datasheet: Littelfuse datasheet (6 pp, sha256 aeef677a6cae4a32, retrieved 2026-10-30, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins, primary cathode-band convention (convention), consensus off (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