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Ray Publish 0.1.0 2068ec8 10d ago

BEP3500SC

BORN · Thyristor Surge Suppressors (TSS) · SMB

BEP3500SC from BORN, in a 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 1 passive Bidirectional thyristor surge-protector terminal; BEP3500SC has VDRM 320 V with IDRM 5 µA max, switching voltage VS 400 V max at IS 800 mA, and on-state voltage VT 4 V max at IT 2.2 A.
2 2 passive Second bidirectional thyristor surge-protector terminal (device is bi-directional); holding current IH 120 mA and off-state capacitance CO 65 pF max, with 500 A (2×10 µs) minimum surge rating for the C series.

Key specifications

Parameter Value
Manufacturer BORN
Package SMB
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
Off-state current IDRM 5 µA @VDRM = 320 V 3
Peak off-state voltage VDRM 320 V 3
Switching voltage VS 400 V @IS = 800 mA; measured at 100KV/s 3
On-state voltage VT 4 V @IT = 2.2 A 3
Holding current IH 120 mA 3
Off-state capacitance CO 65 pF VDC=2V, VRMS=1V, f=1MHz 3
Storage temperature range Tstg -60 150 ℃ TA=25ºC, RH=45%-75% 1
Operating junction temperature range Tj -40 150 ℃ TA=25ºC, RH=45%-75% 1
Repetitive peak pulse current IPP 80 A TA=25ºC, RH=45%-75% 1
Surge rating IPP 2×10us IPP 500 A C series, 2×10us 4
Surge rating IPP 8×20us IPP 400 A C series, 8×20us 4
Surge rating IPP 10×360us IPP 175 A C series, 10×360us 4
Surge rating IPP 10×1000us IPP 100 A C series, 10×1000us 4

CAD (KiCad official)

  • Symbol: BEP3500SC
  • Footprint: Diode_SMD:D_SMB
  • 3D model: SMB (KiCad packages3D, STEP)
  • 3D model files: bep3500sc-etched.step / bep3500sc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bep3500sc.step / bep3500sc.glb are the bare package body.

Provenance

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

  • Datasheet: BORN datasheet (6 pp, sha256 71963f3bd6f75a13, retrieved 2026-10-22, 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