TPA3116D2 Stereo Audio Amplifier Board 2×50W Class-D with Heatsink

TPA3116D2 Stereo Audio Amplifier Board

A high-efficiency Class-D stereo amplifier module built around the Texas Instruments TPA3116D2 IC. Delivering up to 2×50W output power with a built-in blue aluminum heatsink for thermal management, this board is perfect for DIY hi-fi speakers, home audio systems, and embedded audio applications where power and clarity matter.

Key Features

• IC: TPA3116D2 (Texas Instruments Class-D stereo amplifier)
• Output Power: 2×50W (at 24V, 4Ω load)
• Onboard blue aluminum heatsink for passive cooling
• Speaker output pads: R+, R−, L+, L−
• 4× 220µF/35V filter capacitors for clean power delivery
• Multiple onboard inductors for EMI filtering
• Compact blue PCB with mounting holes at all corners
• No external heatsink required at moderate loads

Specifications

• Amplifier IC: TPA3116D2
• Amplifier Class: Class-D
• Supply Voltage: 12V–26V DC
• Output Power: 2×50W (4Ω) / 2×30W (8Ω)
• Frequency Response: 20Hz – 20kHz
• SNR: >100dB
• Efficiency: >90%
• Heatsink: Blue anodized aluminum (onboard)
• Dimensions: ~55 × 55mm

Applications

• DIY hi-fi speaker systems
• Home theater audio amplification
• Portable Bluetooth speaker builds
• Raspberry Pi / Arduino audio output
• Car audio and embedded audio projects