Description
The STR-30135 is an original Sanken thick-film hybrid integrated circuit designed specifically as a fixed voltage regulator for line-operated color television chassis, monitor power supplies, and vintage electronics components. Part of Sanken's classic STR30000 series, this power management module integrates a high-performance triple-diffused planar Darlington power switching transistor alongside its dedicated reference voltage and drive circuitry inside a single robust package.
Key Features:
- Manufacturer: Sanken Electric Co., Ltd. (Cross-referenced to standard vintage replacement types like ECG1778).
- Package Type: 5-Pin Single In-line Power Package (SIP-5 / SIL-5 / TO-3P modification) with an integrated metal cooling fin and a single mounting hole for heat sinking.
- Pin Configuration: 5-Pin Layout (Pin 1: Common/Ground, Pin 2: Base, Pin 3: Input/Collector, Pin 4: Output/Emitter, Pin 5: Output Adjustment/Blank).
- Electrical Characteristics: Delivers a highly stable, fixed output target of 135V (±0.8V) under a 200V maximum peak input voltage ceiling, rated for up to 1.0A of continuous output current and 27W of maximum power dissipation.
- Condition: Brand New / New Old Stock (NOS)
A vital and increasingly rare legacy replacement component relied upon heavily by vintage TV repair professionals, retro CRT restoration hobbyists, and classic arcade technicians looking for an exact-match original Sanken hybrid block to stabilize power rails.

