Description
The STR-50115 (frequently designated as STR50115A) is an original Sanken thick-film hybrid integrated circuit engineered specifically as a fixed positive voltage regulator. Primarily developed for line-operated color televisions, retro gaming hardware, and display monitor power sections, this legacy power module integrates a high-performance power switching transistor alongside its dedicated control and error-detection drive circuitry inside a single robust package.
Key Features:
- Manufacturer: Sanken Electric Co., Ltd. (Distributed historically via Allegro MicroSystems).
- Package Type: 5-Pin Single In-line Power Package (SIP-5 / ZIP-5 / TO-3P-5 modification) featuring an integrated metal cooling fin with a single pre-drilled mounting hole for secure heat sink attachment.
- Electrical Specifications: Engineered to output a highly stable, fixed target of 115.4V with a maximum continuous current rating of 1A to 6A peak and up to 27W of maximum power dissipation.
- Application: Fixed-voltage switching regulation, primary-side SMPS networks, AC-to-DC converters, and legacy CRT monitor chassis maintenance.
- Condition: Brand New / New Old Stock (NOS)
An essential and increasingly rare replacement module relied upon by professional electronics technicians, classic arcade repair shops, and vintage CRT TV restoration hobbyists to safely rebuild and stabilize critical power rails using an authentic Sanken semiconductor block.

