Tel: +44 1460 256 100
Fax: +44 1460 256 101
E-mail: sales@golledge.com
Web: www.golledge.com
02 Jan 2002
SM Monolithic Filter
GSF-71
Model
Centre
Number
Pass Band
Attenuation
In-Band
Insertion
Guaranteed
Termination
Operating
No of
Number
Frequency
of Poles
(dB @ kHz)
Band
Ripple
Loss
Attenuation
(
// pF)
Temperature
Units
(MHz)
(dB @ kHz)
(dB)
(dB)
(dB @ kHz)
Range (C)
1.00
4.50
2.54
7.50
(max)
5.20
(max)
SOLDER PAD LAYOUT
1.40
1.40
2.20 4.10 2.20
1.10
TOP VIEW
1.10
(max)
1
2
ACTUAL SIZE
PAD
1
2
3
4
CONNECTION
In / Out
Ground
Out / In
Ground
4
3
Scale 2:1
Product name + model number
eg: GSF-71 21S15A
GSF-71 21S30B
Option code X (eg GSF-71/X) denotes a custom spec.
Ordering Information
Available on T&R - 1k pcs per reel.
Refer to our website for T&R and soldering details.
Features
Miniature SM package
Frequencies up to 70.0MHz available
Custom specifications available
4-pole models are supplied as two matched units.
21.4MHz Standard Specifications
21S7A
21.400
2
3
3.75
18
18.0
1.0
1.5
50
-910 10
850 // 6.0
-20 to +60
1
21S7B
21.400
4
3
3.75
35
14.0
1.0
2.5
80
-910 10
850 // 3.5
-20 to +60
2
(C
C
=15.0pF)
21S12A
21.400
2
3
6.0
18
25.0
1.0
1.5
50
-910 10
1200 // 3.0
-20 to +60
1
21S12B
21.400
4
3
6.0
35
20.0
1.0
2.5
80
-910 10
1200 // 1.5
-20 to +60
2
(C
C
=7.5pF)
21S15A
21.400
2
3
7.5
15
25.0
1.0
1.5
50
-910 10
1500 // 2.0
-20 to +60
1
21S15B
21.400
4
3
7.5
35
25.0
1.0
2.5
80
-910 10
1500 // 0.5
-20 to +60
2
(C
C
=5.0pF)
21S20A
21.400
2
3
10.0
15
34.0
1.0
2.0
50
-910 10
1800 // 0.5
-20 to +60
1
21S20B
21.400
4
3
10.0
35
34.0
1.0
2.5
80
-910 10
1800 // -1.0
-20 to +60
2
(C
C
=3.0pF)
21S30A
21.400
2
3
15.0
15
45.0
1.0
1.5
50
-910 10
3000 // 0.0
-20 to +60
1
21S30B
21.400
4
3
15.0
35
50.0
1.0
2.5
80
-910 10
3000 // -1.5
-20 to +60
2
(C
C
=3.0pF)
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