Helical Filters
CBW13 Double Tuned
CBT13 Triple Tuned
Frequency Range:
130~220MHz
CBW13
φ0.7
26Max.
12.6
2
7.5
TYPE
ヘリカルフィルタ
CBW13
CBT13
CBT13
φ0.7
2
7.5
6.1
6.1 20 6.1
38.5Max.
25.1
φ0.3
0.7
φ0.3
0.7
19
20.6Max.
4
13.4Max.
(Unit: mm)
19
20.6Max.
2
4
13.4Max.
(Unit: mm)
Examples of electrical characteristics
電気的特性例
Test circuits (bottom view)
測定回路
CBW13
Type
CBT13
2
6
5 6
12
10
8
Item
Center Frequency
Bandwidth, at 1dB
Attenuation
Ripple
Insertion Loss
Impedance
CBW13
145MHz
3MHz
20dB
22dB
0.3dB
1.3dB
50Ω
CBT13
145MHz
3MHz
28dB
35dB
0.5dB
2dB
50Ω
R
1
2
8
4
R
1
fo + 10MHz
fo - 10MHz
R
2
R
2
R
1
=R
2
=50Ω
R
1
=R
2
=50Ω
Note: Case lugs must be grounded.
Characteristics
特性曲線
271MT-1162A
IN
50Ω
OUT
50Ω
272MT-1119D
IN
50Ω
OUT
50Ω
BOTTOM VIEW
272MT-1125D
IN
50Ω
OUT
50Ω
BOTTOM VIEW
BOTTOM VIEW
10dB/div.
5MHz/div.
10dB/div.
5MHz/div.
10dB/div.
5MHz/div.
Attenuation (dB)
Attenuation (dB)
Center Frequency 171MHz
Center Frequency 143MHz
Attenuation (dB)
Center Frequency 171MHz
continued on next page
次頁へ続く
6.1 2.5
30
2
6
18
Helical Filters
continued from previous page
前頁より続く
TYPE
ヘリカルフィルタ
CBW13
CBT13
SELECTION GUIDE FOR STANDARD FILTERS
TYPE CBW13 (Double tuned)
東光品番
中心周波数
帯域幅
選択度
リップル
挿入損失
TOKO
Part
Number
271MT-1149A
271MT-1150A
271MT-1151A
271MT-1152A
271MT-1153A
271MT-1154A
271MT-1155A
271MT-1156A
271MT-1157A
271MT-1158A
271MT-1159A
271MT-1160A
271MT-1161A
271MT-1162A
271MT-1163A
271MT-1164A
271MT-1165A
271MT-1166A
Center
Frequency
(MHz)
99
103
107.5
111
115
119
122
126
131
138
146
154
164
171
182.5
194.5
207.5
220
Bandwidth
(-1dB)
(MHz) Min.
3.0
3.0
3.0
3.0
2.0
2.5
2.0
3.0
3.0
2.0
2.5
2.5
2.5
2.5
3.0
2.5
2.5
2.0
Selectivity
Fo - 15MHz
Fo + 15MHz
(dB) Min.
(dB) Min.
30
20
30
20
30
20
30
20
32
22
30
29
25
24
28
27
25
28
20
23
27
26
20
22
27
24
23
24
23
21
25
18
20
24
23
18
Ripple
(dB) Max.
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Insertion
Loss
(dB) Max.
3.0
2.5
2.5
2.5
2.5
2.0
2.5
2.5
2.5
2.5
2.5
2.5
3.0
2.5
3.0
3.0
3.0
3.0
TYPE CBT13 (Triple tuned)
東光品番
中心周波数
帯域幅
選択度
リップル
挿入損失
TOKO
Part
Number
272MT-1173A
272MT-1230D
272MT-1180A
272MT-1177D
272MT-1175D
272MT-1176D
272MT-1116A
272MT-1169D
272MT-1117D
272MT-1119D
272MT-1006A
272MT-1008A
272MT-1181D
272MT-1219A
272MT-1124D
272MT-1174A
272MT-1123A
272MT-1221A
272MT-1218A
272MT-1148A
Center
Frequency
(MHz)
100
107
110
124
130
133.7
134
137.5
140.21
143
145
145
147
156.7
157
159
160
161
161.3
164
Bandwidth
(MHz) Min. (dB)
4.0 (BW3)
3.0 (BW3)
3.0 (BW3)
3.5 (BW3)
3.0 (BW3)
3.5 (BW3)
5.0 (BW1)
2.0 (BW1)
3.7 (BW1)
3.0 (BW1)
2.8 (BW3)
1.2 (BW3)
4.0 (BW3)
1.5 (BW3)
3.5 (BW3)
7.0 (BW3)
2.0 (BW3)
2.2 (BW1)
1.5 (BW3)
1.0 (BW3)
Selectivity
Fo - ( )MHz
Fo + ( )MHz
(dB) Min.
(dB) Min.
30 (15)
30 (15)
33 (10)
22 (15)
37 (10)
30 (10)
21 ( 6)
17 ( 6)
21 ( 5)
18 ( 5)
23 ( 6)
24 (15)
35 (10)
26 (10)
35 (10)
25 (
30 (
20 (
33 (
17 (
6)
6)
6)
6)
6)
18 ( 6)
24 (15)
30 (10)
25 (10)
22 (10)
25 (
30 (
15 (
25 (
13 (
6)
6)
6)
6)
6)
Ripple
(dB) Max.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
5.0
5.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Insertion
Loss
(dB) Max.
4.0
4.5
5.5
3.5
5.5
3.5
3.0
4.5
3.0
4.0
8.0
8.0
3.5
7.0
3.5
3.0
6.0
4.5
7.0
8.5
35 (20)
17 ( 5)
32 (10)
30 ( 6)
30 ( 5)
33 (20)
15 ( 5)
40 (10)
25 ( 6)
25 ( 5)
continued on next page
次頁へ続く
Helical Filters
continued from previous page
前頁より続く
ヘリカルフィルタ
TYPE
CBT13
SELECTION GUIDE FOR STANDARD FILTERS
TYPE CBT13 (Triple tuned)
東光品番
中心周波数
帯域幅
選択度
リップル
挿入損失
TOKO
Part
Number
272MT-1118D
272MT-1120A
272MT-1125D
272MT-1126F
272MT-1127F
272MT-1131A
272MT-1128F
272MT-1208A
272MT-1129F
272MT-1182A
272MT-1195A
272MT-1130F
272MT-1132A
272MT-1209A
272MT-1146A
272MT-1188A
272MT-1013A
272MT-1007A
272MT-1080A
Center
Frequency
(MHz)
165
169
171
177
183
185
189
194.5
195
196
200
201
215
220
223
226.4
170
170
223
Bandwidth
(MHz) Min. (dB)
3.9 (BW1)
3.5 (BW3)
4.4 (BW1)
4.0 (BW1)
4.0 (BW1)
3.0 (BW3)
4.0 (BW1)
3.0 (BW3)
4.2 (BW1)
3.0 (BW3)
3.0 (BW3)
4.5 (BW1)
4.0 (BW3)
5.0 (BW3)
4.0 (BW3)
2.5 (BW1)
1.5 (BW3)
1.0 (BW1)
2.6 (BW1)
Selectivity
Fo - ( )MHz
Fo + ( )MHz
(dB) Min.
(dB) Min.
15 (10)
16 (10)
35 (10)
25 (10)
16 (10)
14 (10)
15 (10)
13 (10)
17 (10)
17 (10)
24 ( 6)
19 (10)
40 (15)
18 (10)
32 (10)
19 ( 6)
16 (10)
15 ( 6)
40 (15)
24 (10)
32 (10)
25 ( 6)
31 ( 5)
28 (10)
20 ( 6)
18 (10)
35 (15)
18 (10)
25 (10)
17 ( 6)
16 (10)
14 ( 6)
30 (15)
18 (10)
25 (10)
25 ( 6)
30 ( 5)
40 (20)
Ripple
(dB) Max.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
5.0
5.0
5.0
Insertion
Loss
(dB) Max.
3.0
6.0
2.5
3.0
3.0
5.0
3.5
4.5
3.0
5.0
7.0
3.0
4.0
4.5
4.5
6.0
8.0
9.0
6.0
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