main
History Download
Ray Publish 0.1.0 1e3ce68

CR08AS-8B

KEXIN · TRIACs · SOT-89

CR08AS-8B from KEXIN, in a SOT-89. 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 GATE input Gate trigger input; the datasheet gives peak gate forward current 0.3 A, peak gate power dissipation 0.5 W, peak gate reverse voltage 6 V, and a gate trigger current limit of 100 µA.
2 ANODE passive Main anode terminal; repetitive peak off-state voltage VDRM is 400 V (CR08AS-8) or 600 V (CR08AS-12) with gate-cathode resistance RGK = 1 kΩ.
3 CATHODE passive Main cathode terminal and gate reference; RGK = 1 kΩ is specified between gate and cathode, with average on-state current IT(AV) rated at 0.8 A.

Key specifications

Parameter Value
Manufacturer KEXIN
Package SOT-89
Category Transistors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Repetitive peak reverse voltage VRRM 400 V 1
Non-repetitive peak reverse voltage VRSM 500 V 1
DC reverse voltage VR(DC) 320 V 1
Repetitive peak off-state voltage VDRM 400 V *1 With Gate-to-cathode resistance RGK=1kΩ 1
DC off-state voltage VD(DC) 320 V *1 With Gate-to-cathode resistance RGK=1kΩ 1
RMS on-state current IT(RMS) 1.26 A 1
Average on-state current IT(AV) 0.8 A 1
Surge on-state current ITSM 10 A 1
I2t for fusing I2t 0.42 A2s 1
Peak gate power dissipation PGM 0.5 W 1
Average gate power dissipation PG(AV) 0.1 W 1
Peak gate forward voltage VFGM 6 V 1
Peak gate reverse voltage VRGM 6 V 1
Peak gate forward current IFGM 0.3 A 1
Junction temperature Tj -40 125 °C 1
Storage temperature Tstg -40 125 °C 1
Repetitive peak reverse current IRRM 0.5 mA Tj=125, VRRM applied, RGK=1k 2
Repetitive peak off-state current IDRM 0.5 mA Tj=125, VDRM applied, RGK=1k 2
On-state voltage VTM 1.5 V Ta=25, ITM=2.5A, instantaneous value 2
Gate trigger voltage VGT 0.8 V Ta=25, VD=6V, IT=0.1A *1 2
Gate non-trigger voltage VGD 0.2 V Tj=125, VD=1/2VDRM, RGK=1k 2
Gate trigger current IGT 1 100 A Tj=25, VD=6V, IT=0.1A *1; *2 choose special range from items A/B/C if required 2
Holding current IH 1.5 3 mA Tj=25, VD=12V, RGK=1k 2
Thermal resistance junction to ambient Rth (j-a) 65 °C/W Junction to ambient 2

CAD (KiCad official)

  • Symbol: CR08AS-8B
  • Footprint: Package_TO_SOT_SMD:SOT-89-3
  • 3D model: SOT-89 (KiCad packages3D, STEP)
  • 3D model files: cr08as-8b-etched.step / cr08as-8b-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cr08as-8b.step / cr08as-8b.glb are the bare package body.

Provenance

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

  • Datasheet: KEXIN datasheet (6 pp, sha256 665c8fd0fe03068b, retrieved 2026-10-30, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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