有人用过表贴的蜂鸣器么？

只看该作者 · 2009-9-7 14:36

上次在杭州看到有卖表面封装的蜂鸣器。可惜我当时没有买几个样品回来。不知道它们的音量和普通的3V蜂鸣器相比如何呢？哪位有用过的，说说好么？
谢谢!

2万 · 2009-9-7 15:03

本帖最后由 tyw 于 2009-9-7 15:05 编辑

详细说明

No.	Item	Unit	Specification	Condition
1	Oscillation Frequency	Hz	2730	Vo-p=1/2duty , square wave
2	Operating Voltage	Vo-p	2.0~4.5
3	Rated Voltage	Vo-p	3.6
4	Current Consumption	mA	MAX. 100	at Rated Voltage
5	Sound Pressure Level	dB	MIN. 88	at 10cm at Rated Voltage
6	Coil Resistance	Ω	16±3
7	Operating Temperature	℃	-20 ~ +60
8	Storage Temperature	℃	-30 ~ +80
9	Dimension	mm	8.5 x 8.5 x H4.0	See appearance drawing
10	Weight (MAX)	gram	0.8
11	Housing Material		LCP( Black )
12	Leading Pin		Tin Plated Brass(Sn)	See appearance drawing
13	Environmental Protection Regulation		RoHS