STMicroelectronics STA540 Amplifier Class: AB Features: Short-Circuit and Thermal Protection, Standby Load Impedance: 8ohm Max Output Power X Channels @ Load: 38W x 2 @ 4 Ohm; 16W x 4 @ 4 Ohm Mounting Type: Through Hole No. Of Channels: 4 Operating Temperature Range: -40?‚?°C To +150?‚?°C Output Power: 24W Output Type: 2-Channel (Stereo) or 4-Channel (Quad) Package / Case: Multiwatt-15 (Vertical, Bent and Staggered Leads) Rohs Compliant: Yes Series: - Supply Voltage Range: 8V To 22V Thd + N: 0.02% @ 4W, 4ohm, VS=14.4V Type: Class AB Voltage - Supply: 8 V ~ 22 V Product Category: Audio Amplifiers RoHS: yes Product: Class-AB THD plus Noise: 0.02 % Operating Supply Voltage: 9 V, 12 V, 15 V, 18 V Maximum Power Dissipation: 36000 mW Maximum Operating Temperature: + 70 C Mounting Style: Through Hole Audio Load Resistance: 8 Ohms Available Set Gain: 26 dB Input Signal Type: Single Minimum Operating Temperature: 0 C Output Signal Type: Differential, Single Supply Type: Single Supply Voltage - Max: 22 V Supply Voltage - Min: 8 V Other Names: 497-8880-5