Description
The STK7404 is an original Sanyo thick-film hybrid integrated circuit (IC) belonging to the legacy STK7400 series. It is engineered specifically as a single-package offline switching regulator, widely used for stable voltage control and power management in vintage CRT color televisions (CTV) and classic analog video setups.
Key Features & Specifications:
- Function: Offline Switching Regulator / Triple Output Power IC
- Maximum Output Power: 40W
- Input Voltage Adaptability: Single-package configuration applicable to a wide range of line voltages from 85VAC to 264VAC.
- Substrate Technology: Fabricated using Sanyo's proprietary IMST (Insulated Metal Substrate Technology), where the module's metal backplate serves as a shield for a low-noise design.
- Built-In Protections: Features an integrated overcurrent protector (OCP) and a dedicated remote ON/OFF control pin.
- Applications: Direct original replacement part for power boards in vintage analog TVs, arcade monitors, and retro electronic test equipment.
- Manufacturer: Sanyo Electric Co., Ltd.
An authentic, New-Old-Stock (NOS) replacement semiconductor module. Crucial for bench electronics technicians, arcade collectors, and vintage repair hobbyists diagnosing dead power supply stages or repairing retro CRT hardware.