The STK412530 comes in a 16-pin SIP (Single Inline Package) with a staggered lead pitch. Below is the pin assignment as listed in the datasheet:

Employs a shifting supply voltage that adjusts based on the input signal level to minimize power loss.

for standard use. Absolute maximum no-signal voltage can reach ±69V. Distortion

The datasheet provides a recommended application circuit, which is vital for DIY builders. Key components usually found in the surrounding circuit include:

If the STK412-530 is not available, consider: