Description
Bring your mini-stereo towers and custom speaker projects back to life with the STK405-050A. Manufactured by Sanyo, this thick-film hybrid integrated circuit functions as a dual-channel (stereo) Class-B audio frequency power amplifier, delivering a stable minimum of 30W per channel into 6Ω speaker loads.
Key Features:
- Dual-Channel Power Stage: Integrates a complete 30W + 30W stereo output stage within a single compact module, maximizing space and layout efficiency.
- Optimized 6Ω Speaker Drive: Specifically tailored to drive 6-ohm loads with low overall distortion, matching standard mini-component speaker setups perfectly.
- Isolated Pin Blocks: Intentionally grouped pin assignments isolate input circuitry, output feeds, and power supply lines to naturally mitigate PCB layout cross-talk and pattern interference.
- Built-in Standby Support: Compatible with simple external circuit paths to seamlessly enable low-power standby modes.
- Shock Noise Abatement: Formulated internal configurations protect your speakers by suppressing power-on supply switching "pop" noises.
Technical Specifications:
- Manufacturer: Sanyo (or premium legacy component equivalent)
- Package Type: HYB-14 / SIP-14 (Single In-line Package, 14-Pin Configuration)
- Maximum Supply Voltage: ±34.5V (Recommended Supply Voltage: ±22.0V)
- Primary Application: Main audio output power block in compact bookshelf stereo sets, shelf audio systems, and active multi-media speakers.
- Condition: Brand New / New Old Stock (NOS).
Critical Installation Notice: Due to the condensed power density of the STK405 series, exceptional thermal heat-sinking is mandatory. Completely scrape off all dried, original thermal paste from your chassis heatsink block. Apply a fresh, thin, and uniform layer of premium silicone thermal grease to the back aluminum plate of the STK405-050A before screwing it down firmly.

