Ordering number : ENN7727
Thick-Film Hybrid IC
STK404-050S One-Channel Class AB Audio
Power Amplifier IC 30W
The STK404-000S series products are audio power amplifier hybrid ICs that consist of optimally-designed discrete
component power amplifier circuits that have been miniaturized using SANYO’s unique insulated metal substrate
technology (IMST). The adoption of a newly-developed low thermal resistance substrate allows this series of devices
to be provided in miniature packages significantly more compact than earlier Sanyo products with similar
• Series of pin compatible power amplifiers ranging from 45W to 180W (10%/1kHz) devices. The same printed
circuit board can be used depending on the output power grade.
• Miniature packages
— 30W to 40W (THD=0.4%, f=20Hz to 20kHz); 44.0mm × 25.6mm × 8.5mm *
— 50W to 80W (THD=0.4%, f=20Hz to 20kHz); 46.6mm × 25.5mm × 8.5mm *
— 100W to 120W (THD=0.4%, f=20Hz to 20kHz); 59.2mm × 25.5mm × 8.5mm *
*: Not including the pins.
• Output load impedance: RL=6Ω
• Allowable load shorted time: 0.3 seconds
• Supports the use of standby, muting, and load shorting protection circuits.
These products are organized as a series based on their output capacity.
Output 1 (0.4%/20Hz to 20kHz)
Output 2 (10%/1kHz)
Maximum supply voltage (6Ω)
Recommended supply voltage (6Ω)
STK404-050S STK404-070S STK404-090S STK404-100S STK404-120S STK404-130S STK404-140S
— Built-in thermal protection circuit
44.0mm × 25.6mm × 8.5mm
46.6mm × 25.5mm × 8.5mm
59.2mm × 25.5mm × 8.5mm
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
52004TN (OT) No.7727-1/5