福鼎3v方形小尺寸4mm贴片蜂鸣器常州厂家直供报价_供应产品_江阴市福鼎通讯器材

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福鼎3v方形小尺寸4mm贴片蜂鸣器常州厂家直供

价格：￥3.10/元pcs

起订量： 3000 pcs

产品品牌：福鼎

地址：江苏省江阴市月城镇月冯路29号

江阴市福鼎通讯器材

联系姓名：熊欢欢

联系电话：0510-86582084

所在地区：江苏/无锡市

主营产品：蜂鸣器、喇叭、受话器、警报器

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产品详情

电压 3V
尺寸 8.5*8.5*H3.0 mm
频率 4000Hz

江阴福鼎电磁无源贴片蜂鸣器 SMD-040020H侧发3V 厂家直销常州

描述

A. SCOPE

This specification applies magnetic buzzer, SMD-040020H-03040

B. SPECIFICATION

No.	Item	Unit	Specification	Condition
1	Oscillation Frequency	Hz	4000	Vo-p=1/2duty , square wave
2	Operating Voltage	Vo-p	2 ~ 4
3	Rated Voltage	Vo-p	3
4	Current Consumption	mA	MAX. 90	at Rated Voltage
5	Sound Pressure Level	dB	MIN. 70	at 10 cm at Rated Voltage
6	Coil Resistance	Ω	17±3
7	Operating Temperature	℃	-20 ~ +70
8	Storage Temperature	℃	-30 ~ +80
9	Dimension	mm	4.0 x 4.0 x H2.0	See appearance drawing
10	Weight (MAX)	gram	0.1
11	Housing Material		LCP( Black )
12	Leading Pin		Tin Plated Brass(Sn)	See appearance drawing
13	Environmental Protection Regulation		RoHS

C. APPEARANCE DRAWING

Tol : ± 0.3 Unit: mm

D.TESTING METHOD
Standard Measurement conditions
Temperature:25±2℃ Humidity:45-65%

Acoustic Characteristics:
The oscillation frequency, current consumption and sound pressure are measured by the measuring instruments shown below

In the measuring test, buzzer is placed as follows:

E. Typical Frequency Response Curve

F. Recommend Driving Circuit

The base current Ib should high enough so that it saturates the collector current of the transistor with the CB load.

G. Soldering Condition
(1)Recommendable reflow soldering condition is as follows
(Reflow soldering is twice)
Note:It is requested that reflow soldering should be executed after heat of product goes down to normal.

Heat resistant line
(Used when heat resistant reliability test is performed)
(2)Manual soldering
Manual soldering temperature 350 oC within 5 sec.

H. RELIABILITY TEST

NO.	ITEM	TEST ConDITION AND REQUIREMENT
1	High Temperature Test (Storage)	After being placed in a chamber with 802℃ for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: 10dB.
2	Low Temperature Test (Storage)	After being Placed in a chamber with -302℃ for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: 10dB.
3	Humidity Test	After being Placed in a chamber with 90-95% R.H. at 402℃ for 96 hours and then being placed in normal condition for 2 hours. Allowable variation of SPL after test: 10dB.
4	Temperature Cycle Test	The part shall be subjected to 5 cycles. One cycle shall be consist of: Allowable variation of SPL after test: 10dB.
5	Drop Test	Drop on a hard wood board of 4cm thick, any directions ,6 times,at the height of 75cm . Allowable variation of SPL after test: 10dB.
6	Vibration Test	After being applied vibration of amplitude of 1.5mm with 10 to 55 Hz band of vibration frequency to each of 3 perpendicular directions for 2 hours . Allowable variation of SPL after test: 10dB.
7	Solderability Test	Lead terminals are immersed in rosin for 5 seconds and then immersed in solder bath of +3005℃ for 31 seconds . 90% min. lead terminals shall be wet with solder (Except the edge of terminals).
8	Terminal Strength Pulling Test	The force of 9.8N(1.0kg) is applied to each terminal in axial direction for 10 seconds. No visible damage and cutting off.

TEST CONDITION.
Standard Test Condition : a) Temperature : +5 ~ +35℃ b) Humidity : 45-85% c) Pressure : 860-1060mbar
Judgment Test Condition : a) Temperature : +25 ± 2℃ b) Humidity : 60-70% c) Pressure : 860-1060mbar

I. PACKING STANDARD

2672922498_273195330

微信图片_20181219165028

江阴市福鼎通讯器材有限公司成立于1994年，专业生产各类蜂鸣器，喇叭，咪头产品。公司在蜂鸣器及讯响器件的领域已有20多年的经验，拥有完整、科学的质量管理体系，以及先进的自动化设备。

办公区和生产车间展示

微信图片_20181219165056

质量把关实力见证

微信图片_20181219165100

江阴市福鼎通讯器材

Rated Voltage