21.4MH
Z
SERIES MCF
The units have been miniaturized for the 21.4MHz range
and are ideal for compact devices for portable use.
I
Features
8
Compactness and light weight
8
An ideal MCF for portable use.
I
Attention on use
8
Can be washed except for A, B types.
I
Miniature 21.4MHz Series
Model
21N7.5A
21N7.5B
21N12A
21N12B
21N15A
21N15B
21N20A
21N20B
21N30A
21N30B
21M15C
21M15D
21M15EB
21M7.5JH
21M7.5JK
21M12JH
21M15JH
21M30JH
21M7.5JJ
21M12JJ
21M15JJ
21M7.5DH
21M7.5DK
21M12DH
21M15DH
21M30DH
21M7.5DJ
21M12DJ
21M15DJ
21X7.5A
21X7.5B
21X15AA
21X15BE
Nominal
Fre-
quency
(MHz)
4
-40~+80˚C (Available on request)
Attenuation Bandwidth
Terminating
Impedance
(Ω// pF)
850//6
850//5 Cc=16pF
910//5
910//5 Cc=13pF
1.6k//1.3
1.6k//1 Cc=7pF
1.6k//1.3
1.6k//1.5 Cc=4pF
2.3k//1
2.3k//1 Cc=3.5pF
1k//1
1k//1
1k//1
910//3
1.6k//1
1.6k//1
1.6k//1
2.3k//–2
750//3
1.2k//0
1.5k//0
910//3
1.6k//1
1.6k//1
1.6k//1
2.3k//–2
750//3
1.2k//0
1.5k//0
850//6
1.5k//2.5 Cc=8pF
1.5k//2.5pF
1.5k//2.5 Cc=7pF
Operating
Temp.
Range
*(˚C)
Pole
2
4
2
4
2
4
2
4
2
4
6
8
10
6
6
6
6
6
6
6
6
8
8
8
8
8
8
8
8
2
4
2
4
Ripple Insertion
Loss
(dB) (kHz) (dB) (kHz) (dB) (kHz) (dB) (dB)
3
3
3
3
3
3
3
3
3
3
6
6
6
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
±3.75
±3.75
±6
±6
±7.5
±7.5
±10
±10
±15
±15
±7.5
±7.5
±7.5
±3.75
±3.75
±6
±7.5
±15
±3.75
±6
±7.5
±3.75
±3.75
±6
±7.5
±15
±3.75
±6
±7.5
±3.75
±3.75
±7.5
±7.5
18
40
18
40
18
40
18
40
18
40
60
60
65
45
45
45
45
45
45
45
45
65
65
65
65
65
65
65
65
20
40
18
40
±18
±14
±22
±20
±30
±25
±34
±34
±50
±50
±22.5
±15
±15
±8.75
±8.75
±14
±17.5
±35
±8.75
±14
±17.5
±9
±9
±14
±17.5
±35
±9
±14
±17.5
±20
±25
±25
±25
—
—
—
—
—
—
—
—
—
—
—
80
80
65
65
65
65
65
65
65
65
90
90
90
90
85
90
90
90
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
±20
±17.5
±12.5
±12.5
±20
±25
±50
±12.5
±20
±25
±12.5
±12.5
±20
±25
±50
±12.5
±20
±25
—
—
—
—
0.5
1
0.5
1
0.5
1
0.5
1
0.5
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
0.5
1
2
2.5
2
2.5
2
2.5
2
2.5
2
2.5
3
4
5
3.5
3.5
2.5
2.5
2.5
3.5
2.5
2.5
4
4
3
3
3
4
3
3
2.0
3.0
2.0
2.5
Pass Band-
width
Weight
Type
(g)
D-360-A
D-360-B
D-360-A
D-360-B
D-360-A
D-360-B
D-360-A
D-360-B
D-360-A
D-360-B
D-161-D
D-161-D
D-161-E
D-161-C
D-161-C
D-161-C
D-161-C
D-161-C
D-161-C
D-161-C
D-161-C
D-161-D
D-161-D
D-161-D
D-161-D
D-161-D
D-161-D
D-161-D
D-161-D
D-362-A
D-362-B
D-362-A
D-362-B
0.5
1.5
0.5
1.5
0.5
1.5
0.5
1.5
0.5
1.5
3.5
4
4.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
4
4
4
4
4
4
4
4
0.5
1.5
0.5
1.5
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
21.4
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
–20~+70
CRYSTAL FILTERS
191
CRYSTAL
FILTERS
Model : 21N7.5A
90
ATT(dB)
ATT(dB)
80
70
60
50
40
30
20
10
(A)
(B)
50
40
30
(A)
20
10
90
(B)
80
70
60
Model : 21N7.5B
(A) -20 -15 -10
-5
0
5
(B) -800 -600 -400 -200
0
200
21.4MHz
10
400
15
600
20 (kHz)
800 (kHz)
(A) -16 -12
-8
-4
0
4
(B) -800 -600 -400 -200
0
200
21.4MHz
8
400
12
600
16 (kHz)
800 (kHz)
Model : 21M7.5DH
90
ATT(dB)
ATT(dB)
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
Model : 21M7.5JJ
-16
-12
-8
-4
0
4
21.4MHz
8
12
16 (kHz)
-16
-12
-8
-4
0
4
21.4MHz
8
12
16 (kHz)
D-360-A ~ B
D-362-A ~ B
7.9max
(mm)
D-360-B means a pair of D-360-A.
D-362-B means a pair of D-362-A.
When D-360-B/D-362-B are used,
please use a coupling capacitance.
Cc includes stray capacitance.
Connecting mark
D-161-C ~ E
11.5
+
0.5
4
+
0.5
1.5
+
0.2
4–ø0.3
L
+
0.5
A
+
0.5
22
8.5
+
0.5
GND
(mm)
max
3.2
8.0max
20.0min
3-ø0.35
3.75
±0.2
3.75
ø0.35
20.0min
6.0max
R//C
Cc
R//C
Type
D-161-C
D-161-D
D-161-E
A
5.2
7.4
9.8
7
7.9max
max
3.2
6.9
+
1
L
8.5
11.0
13.4
192
