Description
Rare 22-Pin Variant: 50W+50W Audiophile Stereo Power Amplifier
The STK4191V (22-Pin Version) is a specialized edition of Sanyo’s high-fidelity 50W stereo hybrid IC. While the standard 18-pin model is common, this 22-pin variant was custom-engineered for specific high-end Japanese audio chassis (such as those from Sony and Kenwood) to provide enhanced mechanical stability and specialized heat dissipation.
Functionally, it maintains the elite "V-Series" specifications: a massive 50 Watts per channel with an ultra-low Total Harmonic Distortion (THD) of 0.08%. This is the master-grade choice for technicians performing precise, "like-for-like" restorations on premium vintage hardware.
Key Technical Features:
- Continuous Power Output: 50W + 50W (at 8Ω, 20Hz to 20kHz, THD = 0.08%).
- Specialized Package: 22-Pin SIP for specific OEM PCB layouts.
- Audiophile Performance: Internal current mirror circuit ensures clinical signal purity.
- Thermal Excellence: Larger substrate surface area for improved heat transfer to the main sink.
- Frequency Response: 20Hz to 50kHz (+0, -3dB).
Important Compatibility Note:
Please verify your PCB layout before ordering. This 22-pin module is intended for specific circuit boards designed for the wider package. While it shares the same electrical performance as the 18-pin version, the physical footprint is distinct.
Technician's Note: As with all V-series modules, a high-quality heatsink and fresh thermal paste are mandatory. Check your rail voltages (Recommended ±35.5V) to ensure the 0.08% THD rating is achieved.