A thyristor (SCR) gate is triggered by a positive (high) voltage pulse applied to the gate terminal relative to the cathode.
BTA41-600B
70TPS12
70TPS12 is a Thyristor (SCR), manufactured by companies like Vishay (part of the TPS series of power thyristors).
2. Key Specs
-
Type: SCR (Silicon Controlled Rectifier)
-
IT (Average On-State Current): ~70 A
-
VDRM / VRRM (Repetitive Peak Off-State Voltage): 1200 V
-
ITSM (Surge Current, 10 ms): > 1000 A
- Package: Stud type (high-power package for heatsinking)
BTW69 Series - 55A SCRs - Standard SCRs
IT(RMS):55A VGT: 1.5V VDRM VRRM:1000Vand1200V
VS-40TPS...PbF Series, VS-40TPS...-M3 Series
Thyristor High Voltage, Phase Control SCR, 40 A
VS-25TTS08S-M3, VS-25TTS12S-M3 Series
Thyristor, Surface Mount, Phase Control SCR, 16 A - VS-25TTS08S-M3, VS-25TTS12S-M3 Series
1. Thyristor (Silicon Controlled Rectifier, SCR)
-
Type: Unidirectional semiconductor device.
-
Structure: 4-layer PNPN.
-
Operation: Conducts current only in one direction once triggered by a gate pulse.
-
Turn-off: Stops conducting when current falls below holding current (needs natural or forced commutation).
-
Applications:
- DC motor control
- Controlled rectifiers
- Overvoltage protection (crowbar circuits)
- DC motor control