Surface Acoustic Wave (SAW) Filters
400MHz Band SAW Filters for Low Power Radio Communications
SF3535B426M54B800A00/ SF3838B426M07C080A00/ SF3535B429M55B800A00/ SF3838B429M17C080A00/ SF3535B433M60B800A00/ SF7050B469M18B01MA00
Features
• RF filter for transmitter and receiver
• For low power radio communications
• Miniature size and light weight
How to Order
SF 3535 B 426M54 B 800 A00
①
②
③
④
⑤ ⑥
⑦
①
Type of Product (SAW Filter)
②
Package Size (3.5×3.5mm)
③
Sealing Type (Seam Weld Type)
④
Nominal Frequency (426.54MHz)
⑤
Material (Li
2
B
4
O
7
)
⑥
Pass Bandwidth (800kHz)
⑦
Customer Special Model Suffix (STD)
Packaging: Tape & Reel
SF3535
SF3838 1000 pcs./ reel
SF7050
Application
• Engine starter
• Transceiver
• Wireless communication
RoHS Compliant
½
1.20
Standard Frequency
Nominal Frequency (MHz)
426.54
426.075
429.55
429.175
433.6
469.1875
New Part Number
SF3535B426M54B800A00
SF3838B426M07C080A00
SF3535B429M55B800A00
SF3838B429M17C080A00
SF3535B433M60B800A00
SF7050B469M18B01MA00
Old Part Number
LSFB44-426-800K0
MSFB19-426-080K0
LSFB44-429-800K0
MSFB19-429-080K0
LSFB44-433-800K0
LSFB20-469-001M0
Remarks
Middle Band Width
Ultra Narrow Band Width
Middle Band Width
Ultra Narrow Band Width
—
—
Recommended Land Pattern
SF3535
7
6
1.27×2
5
(Unit: mm)
1.30
8
1.40
0.90
1.70
4
1
2
2.54
6
0.90
2.54
3
SF7050
8
7
5
Specifications (Example)
Item
Nominal Frequency (fo)
Operating Temperature Range
Storage Temperature Range
Ripple
Insertion Loss
Guaranteed Attenuation
Terminating Impedance
Unit
MHz
°C
°C
dB
dB
dB
Ω
Conditions
—
—
—
fo±400kHz
Minimum Loss
(fo-21.4)
±400kHz
—
SF3535B426M54B800A00
Specifications
4
2.60
1.00
7.60
1
2
0.90
5
4
3
1.50
426.54
-10
to
+60
-30
to
+70
0.4
*
2.5
*
60
*
1.5 max.
3.5 max.
50 min.
*
: Typ.
SF3838
1.40
1.60
6
1
50 Typical
1.27×2
2
3
Dimensions
SF3535
3.50±0.10
5.0±0.2
7
8
6
5
4
3.50±0.10
2.30
(Unit: mm)
SF7050
7
8
7.0±0.2
6
5
1.8 max.
SF3838
3.8±0.15
6
3.8±0.15
5
4
469 KC
128
2
4
1.30 max.
2−1.0
1
0.5
8
2
8−0.7
3
4
5−0.8
CONNECTION
1: GND
2: IN (OUT)
3: GND
4: GND
5: GND
6: OUT (IN)
7: GND
8: GND
2.54 2.54
1
2
3
8
1.1
7
6
5
4
CONNECTION
1: GND
2: GND
3: GND
4: IN (OUT)
5: GND
6: GND
7: GND
8: OUT (IN)
1.43 max.
7
6
5
1.27 1.27
0.5
6
5
2.54±0.10
4
1.00
0.8
1.90
426
K128
1
2
3
1
3
429A
K128
1
2
3
0.64
1
2
3
Terminal Connection
1: GND
2: INPUT (OUTPUT)
3: GND
4: GND
5: OUTPUT (INPUT)
6: GND
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