BTA08-600BW3G

Triacs Overview

The Littelfuse BTA08-600BW3G is a three-terminal bidirectional thyristor (Triac) designed for full-wave AC control applications. It features an on-state RMS current rating of 8.0 A at a case temperature of 80°C and a peak repetitive off-state voltage of 600 V. The device incorporates internal isolation rated at 2500 VRMS, allowing for direct mounting to heat sinks without external insulators. It exhibits high immunity to dV/dt with a minimum of 1500 V/µs at 125°C and supports a commutating di/dt of 3.0 A/ms under snubberless conditions. The component operates within a junction temperature range of -40°C to +125°C and utilizes the industry-standard TO-220AB package.

Triacs Feature Summary

• Snubberless design optimized for inductive loads, reducing the need for external protection networks
• Internally isolated construction enabling safe direct heat sink mounting
• Uniform gate trigger currents across multiple quadrants for reliable switching

Triacs Applications

• High-performance full-wave AC control circuits
• Static relay implementations
• Induction motor starting circuits

Triacs Procurement Notes

Verify the specific voltage rating suffix when ordering, as the BTA08 series includes both 600 V and 800 V variants which share identical physical packages and electrical characteristics except for blocking voltage. Confirm RoHS compliance and Pb-free status through official Littelfuse documentation prior to integration into regulated assemblies.

Triacs Selection Notes

Select this component for applications requiring high noise immunity and robust commutation capabilities in snubberless environments. Ensure thermal management accounts for the specified 8.0 A RMS rating at 80°C case temperature, applying derating curves for higher ambient conditions. Verify that the 600 V blocking voltage meets the peak line voltage requirements of the target AC system.

Triacs Part Context

This part belongs to the BTA08-xBWG series of surface mount and through-hole thyristors from Littelfuse. The series is engineered for general-purpose AC switching where high reliability and simplified circuit designs are prioritized. The 'W' designation indicates the snubberless variant, while 'G' denotes lead-free packaging compliant with environmental directives.

Triacs Replacement Considerations

Direct replacements include the BTA08-800BW3G for higher voltage tolerance or other BTA08-xBWG variants from Littelfuse. Cross-manufacturer equivalents must be verified against the 8 A RMS current, 600 V blocking voltage, and TO-220AB pinout specifications.