A391 B1403N FM Stereo Transmitter IC – DIP Multi-Pin Audio Broadcast Integrated Circuit

The B1403N FM Stereo Transmitter IC is a compact and efficient integrated circuit designed for wireless audio transmission over FM frequencies. Ideal for hobbyists, electronics enthusiasts, and engineers, this IC enables you to build reliable FM stereo transmitter circuits with minimal external components.

Housed in a standard DIP (Dual In-Line Package), the B1403N is easy to mount on PCBs and breadboards, making it perfect for prototyping and DIY projects. It supports stereo audio input and transmits signals that can be received by standard FM radios within range.

This IC is widely used in educational projects, small broadcasting devices, and wireless audio applications.

Key Features

• FM Stereo Transmission – Broadcast audio to standard FM receivers
• Compact DIP Package – Easy to install and solder
• Low Power Consumption – Efficient operation for portable devices
• Minimal External Components Required – Simplifies circuit design
• Stable Signal Output – Reliable and consistent performance

Applications

• DIY FM transmitter projects
• Wireless audio broadcasting
• Educational electronics kits
• Audio signal transmission systems
• Hobby and experimental circuits

Specifications

• Model: B1403N (Marking: 19E1)
• Type: FM Stereo Transmitter IC
• Package: DIP (Dual In-Line)
• Function: Audio signal modulation and FM transmission
• Mounting: Through-hole

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