: Proper heatsinking is mandatory. Because it is a high-power module, overheating can occur if the thermal contact with the cooling surface is poor. Compatibility
The is a thick-film hybrid integrated circuit (IC) manufactured by Sanyo (now part of Panasonic), primarily used as a 2-channel audio power amplifier in home theater systems and professional sound equipment. Key Specifications Channels: 2-channel (Stereo). stk411210e datasheet
| Pin No. | Symbol | Description | |---------|--------|-------------| | 1 | +VCC (Rch) | Positive power supply for right channel | | 2 | OUT (Rch) | Right channel output | | 3 | GND | Ground (power and signal common) | | 4 | -VCC (Rch) | Negative power supply for right channel | | 5 | IN- (Rch) | Non-inverting input? (Check note) – Actually, IN- for right channel negative feedback | | 6 | IN+ (Rch) | Right channel signal input | | 7 | GND | Signal ground | | 8 | IN+ (Lch) | Left channel signal input | | 9 | IN- (Lch) | Left channel negative feedback | | 10 | -VCC (Lch) | Negative supply for left channel | | 11 | GND | Ground | | 12 | OUT (Lch) | Left channel output | | 13 | +VCC (Lch) | Positive supply for left channel | | 14 | NC | Not connected (unused pin) | | 15 | NC | Not connected | | 16 | NC | Not connected | : Proper heatsinking is mandatory
Since Sanyo discontinued many of these chips, the market is flooded with "New Old Stock" (NOS) or clones. Genuine chips usually have: Clean, crisp laser-etched lettering. A heavy, matte-finish metal backing. Consistent pin spacing without manual solder marks. Common Fault Symptoms Key Specifications Channels: 2-channel (Stereo)
Note: Always cross-reference the pinout diagram with the specific marking on your physical IC, as manufacturers occasionally revise layouts.