component

PCR406

Public Made by Adom

by adom

WEIDA Thyristors (SCR)/Modules, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistors-thyristorspcr406factory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 17d ago
viewers pcr406: viewers · Ray 17d ago
package.json Publish 0.1.0 · Ray 17d ago
page.json Set visibility: public · Ray 17d ago
pcr406-etched.glb Publish 0.1.0 · Ray 17d ago
pcr406-etched.step pcr406: factory component page (tier=lcsc) · Ray 17d ago
pcr406-hero.glb pcr406: hero GLB from the etched model (keeps the MPN mark) · Ray 17d ago
pcr406-hero.overlay.json Publish 0.1.0 · Ray 17d ago
pcr406.glb Publish 0.1.0 · Ray 17d ago
pcr406.kicad_mod Publish 0.1.0 · Ray 17d ago
pcr406.kicad_sym Publish 0.1.0 · Ray 17d ago
pcr406.lbr Publish 0.1.0 · Ray 17d ago
pcr406.step Publish 0.1.0 · Ray 17d ago
README.md Publish 0.1.0 · Ray 17d ago

PCR406

WEIDA · Thyristors (SCR)/Modules · SOT-23

PCR406 from WEIDA, in a SOT-23. 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 of the SCR (K(1)); the 0.5A, 600V sensitive SCR's on-state current (IT(RMS) 0.5A) returns through this pin.
2 A passive Anode of the SCR (A(2)); sustains repetitive peak off-state voltage VDRM/VRRM of 600V.
3 G input Gate trigger input (G(3)); IGT is 20µA typ and 200µA max at VD=12V, with peak gate current IGM of 0.2A.

Key specifications

Parameter Value
Manufacturer WEIDA
Package SOT-23
Category Transistors/Thyristors
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
Gate trigger current IGT 20 200 µA VD=12V, RL=33Ω 2
Gate trigger voltage VGT 0.6 0.8 V 2
Gate non-trigger voltage VGD 0.2 V VD=VDRM Tj=110℃ RL=3.3kΩ 2
Holding current IH 5 mA IT=50mA 2
Latching current IL 6 mA IG=1.2IGT 2
Critical rate of rise of off-state voltage dV/dt 10 V/µs VD=0.66×VDRM Tj=110℃ Gate open RGK=1KΩ 2
On-state voltage VTM 1.7 V ITM=0.6A tp=380μs Tj=25℃ 2
Off-state leakage current IDRM 5 µA RGK=1KΩ Tj=25℃ 2
Off-state leakage current IDRM 100 µA Tj=110℃ 2
Storage junction temperature range Tstg -40 150 ℃ 1
Operating junction temperature range Tj -40 110 ℃ 1
Repetitive peak off-state voltage VDRM 600 V Tj=25℃ 1
RMS on-state current IT(RMS) 0.5 A 1
Non repetitive surge peak on-state current ITSM 6 A full cycle, F=50Hz 1
I2t value for fusing I2t 0.32 A2s tp=10ms 1
Critical rate of rise of on-state current dI/dt 50 A/µs IG=2×IGT 1
Peak gate current IGM 0.2 A 1
Average gate power dissipation PG(AV) 0.1 W 1
Peak gate power PGM 0.5 W 1
Thermal resistance junction to case (AC) Rth(j-c) 80 ℃/W junction to case(AC) SOT-23 2

CAD (KiCad official)

  • Symbol: PCR406
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: pcr406-etched.step / pcr406-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pcr406.step / pcr406.glb are the bare package body.

Provenance

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

  • Datasheet: WEIDA datasheet (4 pp, sha256 8439a2ca621d9b6b, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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