Planar passivated Silicon Controlled Rectifier (SCR) in a SOT78 (TO-220AB) plastic package intended for use in applications requiring high bidirectional blocking voltage capability, high current inrush capability and high thermal cycling performance.

Features and Benefits
• AC power control
• High bidirectional blocking voltage capability
• High thermal cycling performance
• Planar passivated for voltage ruggedness and reliability
• High junction operating temperature capability (Tj(max) = 150 °C)
• Package meets UL94V0 flammability requirement
• Package is RoHS compliant
• IEC 61000-4-4 fast transient
• Capacitive Discharge Ignition (CDI)
• Crowbar protection
• Inrush protection
• Motor control
• Voltage regulation
• High junction operating temperature capability (Tj(max) = 150 °C)
Package version
Package name
Product status
Tj [max]
VRRM [max]
Product Parametric
Type Number Symbol Parameter Conditions Min Typ/Nom Max Unit
BT145-800RT VDRM repetitive peak offstate voltage       800 V
IT(RMS) RMS on-state current half sine wave; Tmb≤ 128°C; Fig. 1; Fig. 2; Fig. 3     25 A
ITSM non-repetitive peak on-state current half sine wave; Tj(init) = 25 °C; tp = 10 ms; Fig. 4; Fig. 5     300 A
non-repetitive peak forward current half sine wave; Tj(init) = 25 °C; tp = 8.3 ms     330 A
Tj junction temperature       150 °C
IGT gate trigger current VD = 12 V; IT = 0.1 A; Tj = 25 °C; Fig. 7 1.5   10 mA
IH holding current VD = 12 V; Tj = 25 °C; Fig. 9     60 mA
VT on-state voltage IT = 30 A; Tj = 25 °C; Fig. 10   1.1 1.5 V
dVD/dt rate of rise of off-state voltage VDM = 536 V; Tj = 150 °C; (VDM = 67% of VDRM); exponential waveform; gate open circuit 80     V/μs
Type number Package Packing Product status Marking Orderable part number Ordering code (12NC)
BT145-800RT SOT78
Horizontal, Rail Pack Volume production Standard Marking BT145-800RTQ 9346 600 62127
Quality, reliability & chemical content
Chemical content Orderable part number Type number RoHS / RHF Leadfree conversion date MSL MSL LF
BT145-800RT BT145-800RTQ   BT145-800RT LeadedE   NA NA
Ordering & availability
Type number Ordering code (12NC) Orderable part number Region Distributor Order sample
BT145-800RT 9346 600 62127 BT145-800RTQ NA NA  
IGT [max]
IT(RMS) [max]
ITSM [max] @ 50 Hz
VDRM [max]
Orderable part number

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