Miyamoto Electric Horn - Automotive Horn, Relay, Buzzer and ECU

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Buzzer

A wide range of buzzers are available to meet your needs.

■ND-12/24/48　High Volume and Waterproof Piezo Buzzer

• Vehicle backup alarm compliant with ECE R165
• Waterproof design equivalent to IP67 (resistant to rain and high-pressure washing)
• Compact design, yet delivers a maximum sound output of 90 dB
• Suitable for a wide range of applications, including construction equipment, commercial vehicles, and industrial vehicles

ND External Dimensions — External dimensions

ND Connection diagram — Connection diagram

Drive method	Self-excited type	Sound mode	Continuous/ Intermittent tone
Rated voltage	12/24/48VDC (available options)	IP rating	IP67
Frequency	2500 to 3000Hz *Adjustable in 100 Hz steps	Operating temp.	-30 to +80℃
Sound level	70 to 90 dB(A) at 1 m Adjustable in 5 dB steps Can be reduced via 3-pin connector	Mass	40g
Max. current	50mA	Housing	PBT

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■BS-12　Light and Compact Piezo Buzzer

• Light and compact
• Used for in-vehicle warning system

▶ Sound

BS　External Dimensions — External dimensions

Drive method	Self-excited type (with built-in oscillator circuit)	Sound mode	Continuous tone
Rated voltage	12VDC	IP rating	IPX2 *Installation orientation restriction applies
Frequency	2000±450Hz	Operating temp.	-30 to +80℃
Sound level	70±5dB(A) at 1m	Mass	20g
Max. current	25mA	Housing	Heat-resistant ABS

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■NA-12　Signal Input Piezo Buzzer

• Separately-excited buzzer
• Highly heat-resistant, waterproof
• Used in engine compartment of vehicles

▶ Sound

NA External Dimensions — External dimensions

Drive method	Externally driven (oscillation signal input)	Sound mode	Based on input signal
Input signal waveform	Square wave, 12 Vp-p, 2800 Hz, 50% duty cycle	IP rating	IP69K
Sound level	88dB(A) at 1m (Input frequency: 2800Hz)	Operating temp.	-40 to +105℃
Max. current	10mA	Mass	20g
---	---	Housing	PBT

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■NB-12　Heat Resistant and Waterproof Piezo Buzzer

• Highly heat-resistant and waterproof
• Used in engine compartment of vehicles

▶ Sound

BA　External Dimensions — External dimensions

Drive method	Self-excited type (with built-in oscillator circuit)	Sound mode	Continuous tone
Rated voltage	12VDC	IP rating	IP69K
Frequency	3100±500Hz	Operating temp.	-35 to +105℃
Sound level	82±5, 88±5dB(A) at 1m	Mass	40g
Max. current	30mA	Housing	PBT

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■NC-12　Slim Piezo Buzzer

• Slim and space-saving
• Used for sliding doors on vehicles

▶ Sound

Drive method	Self-excited type (with built-in oscillator circuit)	Sound mode	Continuous tone
Rated voltage	12VDC	IP rating	IPX3
Frequency	2500±400Hz	Operating temp.	-30 to +80℃
Sound level	70±5, 75±5, 85±5dB(A) at 1m	Mass	30g
Max. current	40mA	Housing	ABS

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■EX　Voice Alarm

• Supports multiple interfaces, including CAN communication
• Capable of storing over 200 voice phrases
• Voice data and volume settings can be easily updated
• Water-resistant design suitable for outdoor use (IP65 compliant)

EX Connection diagram — Connection diagram

Connection example (CAN) — Connection example (CAN Communication)

Rated voltage	12VDC	I/O interfaces	CAN, USART, sensor input, parallel input
Max. current	0.7A	IP rating	IP65
Rated power output	3W	Operating temp.	-10 to +50℃
Sound level	Max. 100dB(A) at 1m	Dimensions	100x100x45 (excluding protrusions)
No. of voice phrases	Over 200 phrases	Housing	PBT
Total voice recording time	Approx. 7min.	---	---