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B642-2T is listed in the SCRs - Modules range at ChipApex. The manufacturer field lists Sensata-Crydom. Its product description is MOD DIODE SCR 42.5A 240V .250"QC. Review the specifications below when checking this part for your BOM.
SCRs - Modules specifications for B642-2T
- Description：MOD DIODE SCR 42.5A 240V .250"QC
- Series：B-2T
- Mfr：Sensata-Crydom
- Package：Bulk
- Structure：Bridge, Single Phase - All SCRs
- Number of SCRs, Diodes：4 SCRs
- Voltage - Off State：600 V
- Current - On State (It (AV)) (Max)：-
- Current - On State (It (RMS)) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：600A @ 60Hz
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Chassis Mount
- Package / Case：Module
- Voltage - Gate Trigger (Vgt) (Max)：3 V
- Current - Gate Trigger (Igt) (Max)：80 mA
- Current - Hold (Ih) (Max)：-
- Grade：-
- Qualification：-
SCRs - Modules datasheet and documents for B642-2T
SCRs - Modules Overview
The Sensata-Crydom B642-2T is a single-phase SCR/diode module from the B-2T series, designed for chassis mounting. It features a common cathode configuration with two SCRs and two diodes. The device supports a maximum repetitive off-state voltage of 600V and an RMS on-state current of 42.5A at DC. It handles a non-repetitive surge current of 600A at 60Hz. Operating junction temperature ranges from -40°C to +125°C, with a maximum gate trigger current of 80mA.
SCRs - Modules Feature Summary
- Single-phase bridge rectifier topology integrating two SCRs and two diodes in a common cathode arrangement
- Robust mechanical design utilizing screw-type chassis mounting for secure installation
- High thermal endurance capability supporting operation up to a 125°C junction temperature
SCRs - Modules Applications
- Industrial motor drive systems requiring controlled rectification
- DC power supply circuits needing adjustable output voltage
- Welding equipment power stages
- Battery charging systems
SCRs - Modules Procurement Notes
Verify the specific suffix against official datasheets to confirm electrical ratings and pinout compatibility. Confirm RoHS compliance status and manufacturing origin through authorized distributors. Ensure proper torque specifications are applied during chassis mounting to maintain thermal performance and mechanical integrity over the operational lifecycle.
SCRs - Modules Selection Notes
Select this component when a combined SCR and diode bridge is required within a single package. The B-2T series offers a compact footprint suitable for space-constrained industrial enclosures. Evaluate thermal management requirements based on the 42.5A RMS rating and ensure heatsinking aligns with the specified junction temperature limits for reliable long-term operation.
SCRs - Modules Part Context
This module belongs to the Crydom B-2T series of discrete semiconductor modules. These components are engineered for high-power switching applications where reliability under harsh conditions is critical. The series provides standardized mounting interfaces and electrical characteristics widely used in industrial automation and power conversion sectors.
SCRs - Modules Replacement Considerations
Direct substitutes include other B-2T series variants such as B612-2T or B664-2T, provided voltage and current ratings match the application requirements. Verify pin configurations and thermal resistance values before substitution to ensure circuit compatibility.
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