Document 112-2
“Slot Seven” 7 mm Tunable Inductors
Series 7M2 — Shielded with Plastic Sleeve
Part Number
7M2-101
7M2-121
7M2-151
7M2-181
7M2-221
7M2-271
7M2-331
7M2-391
7M2-471
7M2-561
7M2-681
7M2-821
7M2-102
7M2-122
7M2-152
7M2-182
7M2-222
7M2-272
7M2-332
7M2-392
7M2-472
7M2-562
7M2-682
7M2-822
7M2-103
7M2-123
7M2-153
7M2-183
7M2-223
7M2-273
7M2-333
7M2-393
7M2-473
7M2-563
7M2-683
7M2-823
7M2-104
L min (µH)
0.094
0.113
0.141
0.169
0.207
0.254
0.310
0.367
0.442
0.526
0.612
0.738
0.9
1.1
1.4
1.6
2.0
2.4
3.0
3.5
4.2
5.0
6.1
7.4
9.0
10
13
15
19
23
28
33
40
48
58
70
85
L nom (µH)
0.100
0.120
0.150
0.180
0.220
0.270
0.330
0.390
0.470
0.560
0.680
0.820
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
L max (µH)
0.106
0.127
0.159
0.191
0.233
0.286
0.350
0.413
0.498
0.594
0.748
0.902
1.1
1.3
1.7
2.0
2.4
3.0
3.6
4.3
5.2
6.2
7.5
9.0
11
14
17
21
25
31
38
45
54
64
78
94
115
Test
frequency
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
25 MHz
7.9 MHz
7.9 MHz
7.9 MHz
7.6 MHz
7.9 MHz
7.9 MHz
7.9 MHz
7.9 MHz
7.9 MHz
7.9 MHz
7.9 MHz
7.9 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
2.5 MHz
Q min
@ L nom
27
27
30
30
35
35
40
40
40
40
40
45
45
27
27
27
27
27
27
27
27
27
27
27
27
20
20
20
20
20
20
20
20
20
20
20
20
DCR max
(Ohms)
0.124
0.124
0.151
0.151
0.176
0.198
0.248
0.271
0.291
0.317
0.333
0.368
0.396
0.412
0.466
0.544
0.595
0.898
1.04
1.12
1.38
1.42
1.49
1.65
2.42
2.75
3.71
4.01
7.37
8.48
13.34
14.72
16.42
17.76
19.76
22.01
24.25
Parts in bold are included in Coilcraft Designer’s Kit M106.
Typical Q at L nom — Series 7M2
75
Q-Factor
-331
50
-181
-102
-101
25
-332
-333
-104
Notes:
1. All readings taken on Agilent/HP
4342-A Q Meter.
2. L min is achieved at maximum
extension of the core toward PC
board. Complete tuning range is
reached within the boundaries of the
coil form.
3. All specifications are at standard “Q”
meter frequencies. L and Q readings
change with frequency.
4. Shielded parts have a sleeve insert
to protect the winding.
5. Operating temperature range -40°C
to +85°C.
6. Electrical specifications at 25°C.
0
1
10
100
Frequency (MHz)
Specifications subject to change without notice.
Please check our website for latest information.
Document 112-2
Revised 11/21/02
© Coilcraft, Inc. 2007
COILCRAFT [ Coilcraft lnc. ]
