Stk412530 Datasheet 〈2026〉

Sanyo STK412-530 is a two-channel, high-efficiency audio power amplifier IC designed for high-fidelity audio systems, typically used in home theaters and professional equipment. It is part of a pin-compatible series that allows manufacturers to use a common PCB for different power ratings. Key Specifications

Two-Channel Output: Supports stereo configurations within a single module. Class H Circuitry: Utilizes two levels of supply voltage ( VHcap V sub cap H VLcap V sub cap L ) to improve efficiency and reduce heat. stk412530 datasheet

• Configuration: Dual Channel (Stereo) or Multi-channel modules exist in the STK series; the 412530 is typically a dual-channel amplifier module.
• Package Type: A vertical mount, finned aluminum heat sink chassis.
• Recommended Supply Voltage: Typically operates in the range of ±20V to ±45V DC (refer to your specific device schematic for exact limits).
• Output Power: Capable of delivering significant wattage per channel (often in the 20W to 60W range depending on the supply voltage and load impedance).
• Thermal Protection: Many STK modules include built-in thermal shutdown circuits to prevent damage from overheating.

• Music power: 2 x 50W
• RMS: 2 x 30W

Unlocking the Power of STK412-530: A Comprehensive Datasheet Review Music power: 2 x 50W RMS: 2 x 30W

Key Takeaway: Notice the gain is fixed at 30dB (approximately 31.6x). There is no external feedback network adjustment – the gain is set internally by the hybrid circuit. (R_L = 6\Omega)

• Bootstrap Capacitors: Used to drive the upper output transistors effectively.
• Feedback Resistors: Determine the amplifier's gain.
• Decoupling Capacitors: Essential for filtering noise on the power supply rails.

4. Electrical Characteristics ((V_CC = \pm 32V), (R_L = 6\Omega), (T_a = 25^\circ C), (f = 1kHz) unless noted)

| Parameter | Condition | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | Quiescent Current | No signal | - | 45 | 80 | mA | | Output Power (1) | THD = 0.4% | 45 | 50 | - | W | | Output Power (2) | ( V_CC = \pm 30V), (R_L=6\Omega) | - | 40 | - | W | | Total Harmonic Distortion | ( P_O = 0.5W) to 40W | - | 0.08 | 0.4 | % | | Frequency Response | ( P_O = 1W), -3dB | 20 | - | 50k | Hz | | Input Impedance | | 30 | 50 | - | kΩ | | Voltage Gain | | 90 | 100 | 110 | (40dB typ) | | Output Noise Voltage | ( R_g = 10k\Omega ), IHF-A | - | 1.2 | 2 | mVrms | | Channel Separation | ( f=1kHz ) | - | 65 | - | dB |