SMD0420F-0340

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驅動電壓:無源    發聲原理:電磁式    電極引方式:貼片式

產品概述

A. SCOPE

    This specification applies magnetic buzzer, SMD0420F-0340

 

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 10cmat 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

    


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

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