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SPECIFICATION
PRODUCT: SAW FILTER
MODEL:
HF238907M（K2977M） SIP5K
HOPE MICROELECTRONICS CO.,LIMITED
Tel:+86-755-82973806
Fax:+86-755-82973550
E-mail:
sales@hoperf.com
http://www.hoperf.com
Page
1
of
1
1.Construction
1.1 Dimension and materials
Type
:
F238907M
1.2. Circuit construction, measurement circuit
2.Characteristics
Standard atmospheric conditions
Unless otherwise specified , the standard rang of atmospheric conditions for making
measurements and tests is as follows;
Ambient temperature : 15℃ to 35℃
Relative humidity
: 25% to 85%
1
Air pressure
: 86kPa to 106kPa
Operating temperature rang
Operating temperature rang is the rang of ambient temperatures in which the filter
can be
operated continuously. -10℃ ~ +60℃
Storage temperature rang
Storage temperature rang is the rang of ambient temperatures at which the filter can
be stored
without damage.
Conditions are as specified elsewhere in these specifications. -40℃ ~ +70℃
Reference temperature
+25℃
2.1 Maximum Rating
DC voltage
VDC
12
V
AC voltage
Vpp
10
V
2.2 Electrical Characteristics
Source impedance
Zs=50Ω
Load impedance
Z
L
=2kΩ//3pF
Items
Insertion attenuation
Reference level
Freq
37.40MHz
Min
13.9
4.1
-0.4
12.0
13.0
43.0
35.0
41.0
40.0
35.0
35.0
typ
15.9
5.6
1.1
14.0
14.2
60.0
52.0
52.0
54.0
42
41
-72
Between any terminals
Between any terminals
T
A
=25℃
max
17.9
7.1
2.6
16.0
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ppm/k
38.90MHz
34.47MHz
32.40MHz
33.40MHz
Relative attenuation
30.90MHz
31.90MHz
40.40MHz
41.40MHz
25.00~30.90MHz
Sidelobe
40.40~45.00MHz
Temperature coefficient
2.3 Environmental Performance Characteristics
Item Test condition
Allowable change of absolute
Level at center frequency(dB)
High temperature test
< 1.0
70℃ 1000H
Low temperature test
< 1.0
2
-40℃ 1000H
Humidity test
40℃ 90-95% 1000H
Thermal shock
-20℃==25℃==80℃ 20 cycle
30M
10M
30M
Solder temperature test
Sold temp.260℃ for 10 sec.
Soldering
Immerse the pins melt solder
at 260℃+5/-0℃ for 5 sec.
2.4 Mechanical Test
Item
Test condition
Vibration test
600-3300rpm amplitude 1.5mm
3 directions 2 H each
Drop test
On maple plate from 1 m high 3 times
Lead pull test
Pull with 1 kg force for 30 seconds
Lead bend test
90
o
bending with 500g weigh 2 times
2.5 Voltage Discharge Test
Item
Test condition
Surge test
Between any two electrode
< 1.0
< 1.0
< 1.0
More then 95% of total
area of the pins should
be covered with solder
Allowable change of absolute
Level at center frequency(dB)
<1.0
<1.0
<1.0
<1.0
Allowable change of absolute
Level at center frequency(dB)
<1.0
3
2.6 Frequency response：
4
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