Compact galvanic isolation for high-performance AC load control
Drive SCRs and triacs directly from your MCU
Compact design, maximum impact
Compact design, maximum impact
The STSID140-12 is a high-performance, insulated gate driver designed for SCRs and triacs in demanding industrial environments. By integrating a galvanic-insulated inductive barrier, it serves as a direct bridge between low-voltage MCUs and high-voltage power stages. The STSID140-12 is versatile enough to be integrated into a wide range of systems where electrical isolation and reliable switching are critical, including small appliances, solid state relays (SSR), power supplies, and healthcare.
- 1250 V RMS inductive barrier: reliable protection for sensitive logic.
- 3.9 mm creepage distance: meets stringent industrial safety standards.
- Secure galvanic separation: guaranteed robust signal isolation.
- Direct 3.3 V MCU interface: no level shifters or complex logic required.
- Plug-and-play simplicity: drastically reduces time-to-market.
- Minimal footprint: reclaim PCB real estate by eliminating external components.
Fast-track your prototype
STEVAL-SID140V1
STEVAL-SID140V1
The STEVAL-SID140V1 evaluation board is the fastest way to validate your AC control logic. Use it to evaluate the driver's ability to manage thyristors in a safe, isolated environment.
- No time-wasting: immediate verification of gate driving performance.
- Simplified design: test functional insulation and EMI performance out of the box.
- Low BOM: STSID14012 generates its own isolated gate power–no secondary supply needed.
On-demand webinar
Innovative, easy-to-use thyristor control with the smallest isolated driver