Planar passivated Silicon Controlled Rectifier in a TO-247 plastic package intended for use in applications requiring very high inrush current capability and high thermal cycling performance. This product is qualified to AEC-Q101 standard for using in automotive applications.

Features and Benefits
  • High thermal cycling performance
  • Planar passivated for voltage ruggedness and reliability
  • High voltage capacity
  • Very high current surge capability
  • AEC-Q101 compliant
  • Line rectifying 50/60 Hz
  • Softstart AC motor control
  • DC Motor control
  • Power converter
  • AC power control
  • Lighting and temperature control
  • Uninterruptible Power Supply (UPS)
  • Solid State Relay (SSR)
  • Automotive battery charger, On Board Charger & Off Board Charger
Package version
Package name
Product status
Tj [max]
VRRM [max]
Product Parametric
Type Number Symbol Parameter Conditions Min Typ/Nom Max Unit
 BT155W-1200T-A VDRM  repetitive peak off-state voltage       1200 V
VRRM  repetitive peak reverse voltage       1200 V
IT(AV)  average on-state current  half sine wave; Tmb ≤ 131 °C     50 A
IT(RMS)  RMS on-state current  half sine wave; Tmb ≤ 131 °C     79 A
ITSM  non-repetitive peak on-state 
 half sine wave; Tj(init) = 25 °C; tp = 10 ms     650 A
 half sine wave; Tj(init) = 25 °C; tp = 8.3 ms     715 A
Tj  junction temperature       150 °C
IGT  gate trigger current  VD = 12 V; IT = 0.1 A; Tj = 25 °C     50 mA
IL  latching current  VD = 12 V; IG = 0.1 A; Tj = 25 °C     300 mA
IH  holding current  VD = 12 V; Tj = 25 °C     200 mA
dVD/dt  rate of rise of off-state voltage  VDM = 800 V; Tj = 125 °C; RGK = 100 Ω; (VDM
 67% of V
DRM); exponential waveform; gate open 
1500     V/µs
 VDM = 800 V; Tj = 150 °C; RGK = 100 Ω; (VDM =
 67% of V
DRM); exponential waveform; gate open
1000     V/µs
Type number Package Packing Product status Marking Orderable part number Ordering code (12NC)
BT155W-1200T-A TO247 HORIZONTAL, RAIL PACK Volume production Standard Marking BT155W-1200T-AQ 9340 720 55127
Quality, reliability & chemical content
Chemical content Orderable part number Type number RoHS / RHF Leadfree conversion date MSL MSL LF
BT155W-1200T-A BT155W-1200T-AQ BT155W-1200T-A   icon_rohs_pb.png icon_rhf_darkgreen.png   NA NA
Ordering & availability
Type number Ordering code (12NC) Orderable part number Region Distributor Order sample
BT155W-1200T-A 9340 720 55127 BT155W-1200T-AQ NA NA  
IGT [max]
IT(RMS) [max]
VDRM [max]
Orderable part number

Fill in the form below to order samples: