BT149D

Planar passivated Silicon Controlled Rectifier in a SOT54 (TO-92) plastic package. This SCR is designed to be interfaced directly to microcontrollers, logic ICs and other low power gate trigger circuits.

Features and Benefits
  • Planar passivated for voltage ruggedness and reliability
  • Sensitive gate
  • Direct triggering from low power drivers and logic ICs
Applications
  • General purpose switching and phase control
  • Low power circuits
Datasheet
Package version
Package name
Product status
Tj [max]
VRRM [max]
Product Parametric
Type Number Symbol Parameter Conditions Min Typ/Nom Max Unit
BT149D VDRM repetitive peak off-state voltage       400 V
VRRM repetitive peak reverse voltage       400 V
IT(AV) average on-state current half sine wave; Tlead ? 83 °C     0.5 A
IT(RMS) RMS on-state current half sine wave; Tlead ? 83 °C     0.8 A
ITSM non-repetitive peak on-state current half sine wave; Tj(init) = 25 °C; tp = 10 ms     8 A
half sine wave; Tj(init) = 25 °C; tp = 8.3 ms     9 A
Tj junction temperature       125 °C
IGT gate trigger current VD = 12 V; IT = 10 mA; Tj = 25 °C   50 200 µA
IL latching current VD = 12 V; IG = 0.5 mA; Tj = 25 °C; RGK(ext) = 1 k?   2 6 mA
IH holding current VD = 12 V; Tj = 25 °C; RGK(ext) = 1 k?   2 5 mA
dVD/dt rate of rise of off-state voltage VDM = 268 V; Tj = 125 °C; RGK = 1 k?; (VDM = 67% of VDRM); exponential waveform 500 800   V/µs
VDM = 268 V; Tj = 125 °C; (VDM = 67% of VDRM); exponential waveform; gate open circuit   25   V/µs
Package
Type number Package Packing Product status Marking Orderable part number Ordering code (12NC)
BT149D
SOT54
Package details  
Ammopack, Radial Volume production Standard Marking BT149D,126 9335 524 30126
Bulk Pack BT149D,112 9335 524 30112
Quality, reliability & chemical content
Chemical content Orderable part number Type number RoHS / RHF Leadfree conversion date MSL MSL LF
BT149D BT149D,126   BT149D Lead-freeG week 5, 2005 NA NA
Lead-freeG week 5, 2005 NA NA
Ordering & availability
Type number Ordering code (12NC) Orderable part number Region Distributor Order sample
BT149D 9335 524 30126 BT149D,126 NA NA  
9335 524 30112 BT149D,112
category
IGT [max]
IT(RMS) [max]
ITSM [max] @ 50 Hz
VDRM [max]
Cross Reference
DRA01TDRA01T DRA01TB DRA01TC DRA01TE DRA03T DRA03TB DRA03TC DRA03TE DRA05E DRA05E1 DRA05E2 DRA05E5 FS0102BB FS0102DB FS0103BB FS0103DB P0102AB P0102BB P0102CB P0102DB SF0R3B42 SF0R3D42
Orderable part number
BT149D,126; BT149D,112

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