Description
The STK7348 is an original Sanyo thick-film hybrid integrated circuit (IC) belonging to Sanyo's vintage power management lines. It is engineered specifically as a self-oscillation type, off-line switching voltage regulator and DC/DC converter module, heavily utilized in the power supply networks of classic color televisions (CTV) and legacy consumer video electronics.
Key Features & Specifications:
- Function: Off-Line Switching Regulator / DC-DC Converter
- Design Topology: Thick-film hybrid circuit integrating control circuitry, error monitoring, and a rugged power switching transistor on a singular substrate.
- Input Optimization: Formulated for stable voltage regulation under traditional line inputs (specifically optimized for standard AC 200V / 115V system topologies).
- Package Type: Multi-pin Single In-Line Package (SIP / HYB design) featuring an integrated insulated metal substrate backing plate for direct attachment to external heatsinks.
- Applications: Direct original replacement part for power boards in vintage analog TVs, early monitor chassis, and vintage production hardware.
- Manufacturer: Sanyo Electric Co., Ltd.
An authentic, New-Old-Stock (NOS) replacement semiconductor. Highly recommended for bench technicians and restoration specialists looking to repair, stabilize, or reconstruct failing legacy power supply stages.