Planar passivated SCR with sensitive gate in surface mountable plastic package and through-hole package. This SCR is designed to be interfaced directly to microcontrollers, logic integrated circuits and other low power gate trigger circuits.

Features and Benefits
  • On-state RMS current, 1.25 A
  • Repetitive peak off-state voltage, 1250 V
  • High surge current capability
  • Direct triggering from low power drivers and logic ICs
  • Planar passivated for voltage ruggedness and reliability
  • Through-hole package (TO92)
  • GFCI (Ground Fault Circuit Interrupter)
  • AFCI (Arc Fault Circuit Interrupter)
  • RCD (Residual Current Device)
  • RCBO (Residual Current circuit Breaker with Overload protection)
  • AFDD (Arc Fault Detection Device)
Quality, reliability & chemical content
Type Number Symbol Parameter Conditions Min Typ/Nom Max Unit
WCR03-12M VDRM  repetitive peak off-state voltage       1250 V
VRRM  repetitive peak reverse voltage       1250 V
IT(AV)  average on-state current  half sine wave; Tlead ≤ 83 °C     0.8 A
IT(RMS)  RMS on-state current  half sine wave; Tlead ≤ 83 °C     1.25 A
ITSM  non-repetitive peak on-state 
 half sine wave; Tj(init) = 25 °C; tp = 10 ms     20 A
 half sine wave; Tj(init) = 25 °C; tp = 8.3 ms     22 A
Tj  junction temperature       125 °C
IGT  gate trigger current  VD = 12 V; RL = 100 Ω; Tj = 25 °C 10   90 μA
IL  latching current  IT = 0.1 A; RGK = 1 kΩ; Tj = 25 °C     6 mA
IH  holding current  VD = 12 V; RGK = 1 kΩ; Tj = 25 °C     5 mA
dVD/dt  rate of rise of off-state voltage  VDM = 838 V; Tj = 125 °C; RGK = 1 kΩ ; (VDM
 67% of V
DRM); exponential waveform
200     V/µs
Type number Package Packing Product status Marking Orderable part number Ordering code (12NC)


BULKPACK,STRAIGHTLEADS(TO-92)Volume productionStandard MarkingWCR03-12MEP9340 721 40412
Type number Ordering code (12NC) Orderable part number Region Distributor Order sample
WCR03-12M9340 721 40412WCR03-12MEPNANA


Chemical content Orderable part number Type number RoHS / RHF Leadfree conversion date MSL MSL LF
WCR03-12MWCR03-12MEPWCR03-12MLeaded  Dalways Pb-freeNANA

Chemical Content -



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