Description
The STR-50103 (often cross-referenced interchangeably with the STR50103A) is an original Sanken thick-film hybrid integrated circuit engineered as a fixed positive voltage regulator. Primarily developed for line-operated color televisions 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 / Cross-referenced to NTE1776).
- Package Type: 5-Pin Single In-line Power Package (SIP-5 / ZIP-5) featuring an integrated metal cooling fin with a pre-drilled single mounting hole for direct heat sink attachment.
- Electrical Characteristics: Engineered to output a highly stable, fixed target of 103.4V with a maximum power dissipation rating of up to 27W.
- Application: Fixed-voltage switching regulators, AC-to-DC converters, primary-side SMPS networks, and CRT 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.