Datasheet: Stk411-210e

| Pin No. | Symbol | Description | |---------|-------------|--------------------------------------| | 1 | CH1 IN (+) | Non-inverting input (Channel 1) | | 2 | GND | Signal ground | | 3 | Vcc | Positive power supply (+Vcc) | | 4 | CH1 OUT | Speaker output (Channel 1) | | 5 | GND | Power ground | | 6 | Vee | Negative power supply (-Vcc) | | 7 | CH2 OUT | Speaker output (Channel 2) | | 8 | GND | Signal ground | | 9 | CH2 IN (+) | Non-inverting input (Channel 2) | | 10 | N/C | Not connected | | 11 | N/C | Not connected | | 12 | Vcc2 | Positive supply (internal driver) | | 13 | N/C | Not connected | | 14 | Vee2 | Negative supply (internal driver) | | 15 | GND | Substrate ground |

| Parameter | Symbol | Rating | Unit | |------------------------------|---------|---------|-------| | Maximum Supply Voltage | Vcc max | ±35 | V | | Recommended Supply Voltage | Vcc | ±25 to ±28 | V | | Output Peak Current | Io peak | 8 | A | | Power Dissipation (with heatsink) | Pd max | 80 | W | | Thermal Resistance (Junction to Case) | θjc | 2.5 | °C/W | | Operating Temperature | Topr | -20 to +85 | °C | | Storage Temperature | Tstg | -40 to +125 | °C | These values represent typical performance from the original datasheet. Stk411-210e Datasheet

: Pins 12 and 14 are often internally connected to pins 3 and 6 respectively in many circuits, but the datasheet recommends separate decoupling for optimal performance. 3. Absolute Maximum Ratings (TA = 25°C) Exceeding these values will likely destroy the STK411-210E. | Pin No

Introduction The STK411-210E is a hybrid integrated circuit (Hybrid IC) manufactured by Sanyo Semiconductors (now part of ON Semiconductor). Part of the renowned STK series of audio amplifier modules, this component was designed specifically for high-quality stereo audio applications in the late 1980s through the early 2000s. While the STK series has been largely discontinued, the STK411-210E remains highly sought after by vintage audio enthusiasts, repair technicians, and DIY audiophiles who restore classic stereo receivers, powered mixers, and home theater systems. Part of the renowned STK series of audio