Are you looking to an existing amplifier or design a new audio circuit using this module? STK412-530 | Original stock,Price - Ovaga Technologies
: For normal or quiet audio signals, the internal driver stages draw power strictly from the lower voltage rail (
The STK412-530 uses an 18-pin SIP (Single Inline Package). The following table lists the typical pin assignment for the STK412 series: stk412530 datasheet
Based on typical datasheet information from sources like AliExpress and Ovaga Technologies :
Since original Sanyo stock is scarce, the market contains many counterfeit clones. Real Sanyo modules usually feature crisp, laser-etched lettering, uniform pin spacing, and a thick, heavy internal copper/aluminum backplate. Lightweight modules with printed text that easily wipes off with alcohol are likely cheap reproductions that will fail at high volumes. Common Failure Modes Are you looking to an existing amplifier or
The electrical characteristics of the STK412-530 are as follows:
Employs a shifting supply voltage that adjusts based on the input signal level to minimize power loss. Adhering to the absolute maximum ratings outlined in
Adhering to the absolute maximum ratings outlined in the STK412-530 datasheet prevents catastrophic silicon failure. Operating the IC near these limits without adequate protections will permanently degrade the module. Rated Value Notes / Conditions No input signal present Maximum Supply Voltage 2 Signal present, Maximum Supply Voltage 3 Signal present, Low-Level Supply Max (No Signal) Low-voltage standby rails Low-Level Supply Max (Signal) Signal present, Substrate Temperature 125∘C125 raised to the composed with power C Maximum operating temperature of IC Storage Temperature Tstgcap T sub s t g end-sub Thermal storage envelope ⚡ Electrical Characteristics & Performance
The power supply should be adequately sized to deliver at least 5-10A of current per channel to prevent voltage sag under heavy load. Use a center-tapped transformer with a bridge rectifier and large smoothing capacitors (10000μF or more per rail) for optimal performance.
) during low-volume output to maximize efficiency and automatically switches to higher supply voltages ( VHcap V sub cap H ) during peak high-volume output to prevent clipping.
| Parameter | Value / Range | |-----------|---------------| | | Hybrid Class AB / Class H audio power amplifier IC | | Number of Channels | 2 (stereo) | | Output Power | 150 W + 150 W (maximum) ~90 W to 110 W per channel into 8 Ω (continuous) 50 W into 4 Ω at THD = 0.08%, ±36 V supply | | Total Harmonic Distortion (THD) | 0.08% (1 kHz, 30 W) | | Frequency Response | 20 Hz – 50 kHz | | Input Impedance | 56 kΩ | | Damping Factor | 60 (typical) | | Absolute Maximum Supply Voltage (no signal) | ±69 V | | Maximum Supply Voltage (with signal, R L = 8 Ω or 6 Ω) | ±62 V | | Maximum Supply Voltage (with signal, R L = 4 Ω) | ±49 V | | Recommended Operating Supply Voltage Range | ±18 V to ±36 V | | Operating IC Substrate Temperature | 125 °C (max) | | Storage Temperature | –30 °C to +125 °C | | Thermal Protection | Built‑in | | Short‑Circuit Protection | Built‑in (0.3 s allowable short time) | | Package Type | Multi‑layer SIP‑ZIP, insulated heat‑sink | | Physical Dimensions (150 W class) | 78 mm × 44 mm × 9 mm (excluding leads) | | Pin Count | 18 leads (SIP‑18 configuration) |