Download Specification Sheet

SPECIFICATION
FOR
APPROVAL
Customer:
Description: Magnetic Transducer
Sob erton Part No. : ST-025BLA
Date:2008-12-18
Customer Model No. :
Date of Approval
Authorization
Signature
211 N. First Street
Minneapolis, MN. 55401
612-849-6205
[email protected]
Approved
Checked
Design
Ryan
Wang Wei Rong
Xu Hong Wei
2008/12/18
2008/12/18
2008/12/18
A:SCOPE
This specification applies magnetic buzzer, ST-025BLA
2/7
B:SPECIFICATION
■ Test condition: TEMP=+25±2 ℃ Related humidity=45~60±5% Air pressure:860-1060mbar
NO.
Item
Unit
Specification
Condition
Rated Voltage
Vo-p
1
Vo-p
3.6
2
3
4
5
6
7
8
9
10
11
12
13
14
Operating Voltage
Mean Current
Coil Resistance
Sound Output
Rated Frequency
Operating Temp
Storage Temp
Dimension
Weight
Vo-p
mA
Max. 100
Ω
16 ± 3
dBA
80/10cm
Hz
2500
℃
-30-+85
℃
-40-+85
mm
7.5 × 7.5 × 2.5
gram
0.8
Material
0V
Applying rated voltage & rated frequency,
square wave 1/2 duty
Distance at 10cm(A-weight free air), Applying
rated voltage & rated frequency, square
wave,1/2duty
See attached drawing.
LCP (Black)
SMD type
( Plating Sn )
Terminal
Environmental
Protection
Regulation
Storage life
2.5 - 4.5
See attached drawing
RoHS
month
3
3 months preservation at room temp(25±3℃),
Humidity40%
3/7
C:ENVIRONMENT TEST
No.
1
2
Item
Test condition
Evaluation standard
High temp. test
After being placed in a chamber at +85℃ for 96
hours.
Low temp. test
After being placed in a chamber at -30℃ for 96
hours.
The part shall be subjected to 10 cycles. One
cycle shall consist of;
3
Thermal shock
+85℃
+20℃
+20℃
-30℃
30 min
15 min
15 min
30 min
The part shall be subjected to 10 cycle and consist
of;
+70℃
4
After the test the part
shall meet
specifications without
any degradation in
appearance and
performance except
SPL. after 4 hours at
+25℃, The SPL shall
be in ± 10 dBA
compared with initial
one.
a, b: 90~98%RH
Temp. / Humidity Cycle
c: 80~98%RH
+25℃
a
b
3hrs
12±0.5hrs
3hrs
c
24hrs
D: RELIABILITY TEST
No.
Item
Test condition
□ Applying rated voltage, rated frequency, square wave ,
1/2 duty cycle:
1
Operating
life test
Ordinary temperature
The part shall be subjected to 96 hours at room
temperature.
TEST CONDITION.
Standard Test Condition
: a)Temperature: +5~+35℃ b)Humidity:45~85%
Judgment Test Condition :a)Temperature:+25±2℃
b)Humidity:60~70%
Evaluation standard
After the test the part shall
meet specifications without
any degradation in
appearance and performance
except SPL. after 4 hours at
+25℃,The SPL shall be in ±
10 dBA compared with
initial one.
c)Pressure: 860~1060mbar
c)Pressure: 860~1060mbar
E:MECHANICAL CHARACTERISTICS
No
Item
Test condition
Lead terminal are immersed in rosin for 5 seconds and then
Solderability immersed in Solder bath of +260±5℃ for 3±0.5 second
1
2
Soldering Heat Lead terminal are immersed in soldering bath of +260±5℃
Resistance
for3±0.5 Second.
3
Iron Soldering
Heat
Resistance
4
Terminal
Mechanical
Strength
5
6
Vibration
Drop test
Lead terminal are soldering of +350±5℃, 2.5±0.5 Second.
Apply the terminal with 9.8N(1kg) strength for 10±1 sec.
The part shall be subjected to a vibration cycle of 10Hz to
55Hz to 10Hz in a period of 1 minute. Total peak amplitude
shall be 1.52mm(9.3G).The vibration test shall consist of 2
hours per axis in each three axes(X,Y,Z),Total 6 hours.
The part only shall be dropped from a height of 75cm onto a
wooden board 1 times.
Temp.(° C)
* Reflow profile of lead-free
Max. 10 sec.
Max.
250° C
220° C
200° C
150° C
100° C
50° C
60 ~ 120 sec.
40 ~ 60 sec.
Time(sec)
Recommendable reflow soldering condition is as follows.
Note 1: It is requested that reflow soldering should be executed after heat of product
goes down to normal temperature.
Note 2: Peak reflow temperature of 250°C Max.10 sec., with a maximum duration
of 40~60 sec. between 220°C and 250° C
4/7
Evaluation standard
90% min. lead
terminals shall be
wet with solder
No interference in
operation
No damage and
cutting off
After the test the
part shall meet
specifications
without any damage
in appearance and
performance except
SPL. The SPL shall
be in ± 10 dBA
compared with
initial one.
5/7
F: MEASUREMENT METHOD
+Vcc
BZ
Vo-p
Magnetic
Transducer
180
VCE
OV
G: INSPECTION FIXTURE
Magnetic Transducer
40cm
10cm
Sound Level Meter TES1350A
Similar pages