2315 Active Buzzer Alarm Speaker DC 12V

2315 Active Buzzer Alarm Speaker DC 12V is a compact sound-producing component that emits a continuous tone when powered. Designed for 12V DC operation, it features built-in oscillation circuitry, eliminating the need for an external driver. Commonly used for alarms, alerts, and notification systems in embedded electronics and industrial applications.

Key Features:

• Active Buzzer: No external driver circuit needed — produces sound on power.
• 12V Operation: Optimized for standard 12V DC supply systems.
• Compact Size: Small 23mm x 15mm cylindrical package for space-constrained designs.
• Consistent Sound Output: Emits a continuous ~2.4kHz tone with stable volume.
• Long Life: Reliable for repeated use in industrial and consumer devices.

Technical Specifications:

• Rated Voltage: 12V DC
• Operating Voltage Range: 3V – 20V DC
• Sound Output: ≥85dB at 10cm
• Resonant Frequency: ~2.4kHz ±0.5kHz
• Current Consumption: ≤30mA at 12V
• Body Diameter: 23mm
• Height: 15mm
• Mounting Type: Through-hole
• Weight: Approx. 5 grams

Mechanical Specifications:

• Package Style: Round plastic shell
• Mounting: Dual pins for PCB or panel mount
• Polarity: Usually marked with “+” on the casing
• Enclosure Material: Black flame-retardant ABS plastic

Mounting Options:

• PCB Mount: Insert leads into PCB for direct connection.
• Panel Mount: Optional glue or bracket for non-PCB surfaces.

Schematic Diagram, Connection, Wiring and Pinout:

• Connection: Connect positive (+) pin to 12V DC and negative (–) to ground.
• Internal Driver: Oscillator circuit is integrated — no external components required.
• Polarity Sensitive: Reversing polarity may prevent operation.

Datasheet and Documentation:

• Download 2315 Active Buzzer Datasheet (PDF)

Applications:

• Alarm Systems: Intruder alerts, fire alarms, and door sensors.
• Industrial Controls: Machine feedback and fault indicators.
• Consumer Electronics: Timers, washing machines, microwave ovens.
• Automotive: Dashboard alerts, seatbelt warnings, and reverse buzzers.
• DIY Projects: Arduino and Raspberry Pi buzzer notifications.

Equivalent Models:

• FJ2315: Similar size and tone active buzzer
• FMC-2315: High output tone with matching 12V operation
• EMB-2315X: Alternate brand with comparable acoustic profile

Package Includes:

• 1 x 2315 Active Buzzer Alarm Speaker DC 12V