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Adafruit STEMMA Audio Amp - Mono 2.5W Class D - PAM8302

Adafruit STEMMA Audio Amp - Mono 2.5W Class D - PAM8302

Pimoroni

£4.15

Price read from Pimoroni on 2026-10-22. Check before buying.

The Adafruit STEMMA Audio Amp is a super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24d

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.