Description
The STR-S6421 is an original Sanken hybrid integrated circuit engineered for off-line switching regulators and power supply control applications. This high-reliability power management component integrates primary control circuits and rugged switching elements into a single robust package designed to handle demanding thermal and electrical loads.
Key Features:
- Manufacturer: Sanken Electric Co., Ltd.
- Package Type: ZIP-9 / SIP-9 (9-pin Single/Zig-Zag In-line Power Package) with an integrated metal cooling fin for optimized heat dissipation.
- Cross-Reference OEM Parts: Directly replaces Toshiba part numbers 23314699 and 23314549, as well as Kenwood part number 23319169T.
- Application: Off-line switching voltage regulation, switch-mode power supplies (SMPS), and high-reliability TV/audio chassis repair.
- Condition: Brand New / New Old Stock (NOS)
Widely relied upon by professional electronics repair technicians for maintaining legacy CRT television chassis (such as vintage Toshiba sets), retro audio equipment, and classic consumer electronics requiring an exact-match original Sanken hybrid replacement part.

