Planar passivated SCR with sensitive gate in a SOT223 surface mountable plastic package. This SCR is designed to be interfaced directly to microcontrollers, logic integrated circuits and other low power gate trigger circuits.

Features and Benefits
  • Sensitive gate
  • High surge current capability
  • High voltage capability
  • Planar passivated for voltage ruggedness and reliability
  • Direct triggering from low power drivers and logic ICs
  • Surface mountable package
  •  Ground Fault Circuit Interrupter (GFCI)
  •  GFCI Socket
  •  Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
  •  Arc Fault Circuit Interrupter (AFCI)
Quality, reliability & chemical content
Type Number Symbol Parameter Conditions Min Typ/Nom Max Unit
NCR125W-125M VDRM repetitive peak off-state voltage       1250 V
VRRM repetitive peak reverse voltage       1250 V
IT(AV) average on-state current half sine wave; Tsp ≤ 111 °C     0.8 A
IT(RMS) RMS on-state current half sine wave; Tsp ≤ 111 °C     1.25 A
ITSM non-repetitive peak on-state current 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 = 140 Ω; Tj = 25 °C 1   100 µA
IL latching current IT = 0.1 A; RGK = 220 Ω; Tj = 25 °C;     12 mA
IH holding current VD = 12 V; RGK = 220 Ω; Tj = 25 °C;     10 mA
dVD/dt rate of rise of off-state voltage VDM = 838 V; Tj = 125 °C; RGK = 220 Ω;
(VDM = 67% of VDRM); exponential waveform
200     V/µs
Type number Package Packing Product status Marking Orderable part number Ordering code (12NC)
NCR125W-125M SOT223
STANDARD MARK SMD Volume production Standard Marking NCR125W-125MX 9340 721 78115
Type number Ordering code (12NC) Orderable part number Region Distributor Order sample
NCR125W-125M 9340 721 78115 NCR125W-125MX NA NA  


Chemical content Orderable part number Type number RoHS / RHF Leadfree conversion date MSL MSL LF
NCR125W-125M NCR125W-125MX NCR125W-125M Lead-free D Always Pb-free 1 1

Chemical Content - NCR125W-125M

As a proactive and sustainable company, WeEn Semiconductors has decided to publish chemical content information of its product portfolio through direct Internet access. With this information, we can provide data to our customers to facilitate any assessment regarding compliance to the RoHS directive and lead-free status. WeEn Semiconductors has set a standard in the semiconductor business with this detailed level of data, directly retrieved from its general product database. WeEn Semiconductors products are compliant to the EU Directives RoHS, ELV and the China RoHS.


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