2
Part Numbering System
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UNITED KINGDOM
CRYDOM
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+44 (0) 1202 891918
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www.crydom.co.uk
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T
F
E
W
T
F
E
W
rm
ind4
uctors
5
RM4 Inductors
• Inductance Range 100
to 680 mH
• Fixed or Tuneable up
to 19%
• Temperature Range
-20 to 120° C
• Core Material Curie
Temperature > 150° C
Single Inductor Current Capacity
500
400
300
200
100
0
DC Current mA.
600 1 dc. mA. Rated
1 dc. mA. Saturation
100
120
150 180
220
270
330
390
470 560 680
Inductance, mH
Frequency Response of Single Inductors
1000
100
10
1
0.1
Impedance (Z) Kilohms
10000
Impedance for 150mH
0.7
Frequency, MHz
0.9
1.2
1.4 1.6 2.0
2.14
2.4
2.72
3.0
3.2
3.4
3.8
4.2
4.6
5.0
0.5
Impedance for 330mH
Impedance for 680mH
Impedance for 100mH
Impedance for 220mH
25
16
3
2
4
Mechanical Data
Mass 3.2gm approx.
10.5 x 10.5 plan x 11mm height
Example - RM 4F 102 S
Form
S - single
C - common mode
D - differential
Size
4F - Fixed
4T - Tuneable.
Preferred values
102 = 100 H
152 = 150 H
222 = 220 H
332 = 330 H
m
m
m
m
Other values & package styles available on request.
Style
RM Pinned Bobbin
RS Surface Mount
Specials
392 = 390 H
472 = 470 H
562 = 560 H
682 = 680 H
m
m
m
m
Extended Range
122 = 120 H
272 = 270 H
182 = 180 H
m
m
m
Inductance Value
Example RM4F102S = RM4 100mH fixed single inductor with pinned bobbin.
