IRF
Vishay Dale
Inductors
Epoxy Conformal Coated
Uniform Roll Coated
FEATURES
•
Flame-retardant coating and color band identification.
•
Uniform coating is excellent for automatic insertion.
•
Available in bulk, ammo and reel pack per EIA RS-296.
•
Superior electrical specifications high Q and self resonant
frequency, low DC resistance, high rated DC current.
ELECTRICAL SPECIFICATIONS
Inductance Tolerance:
±
5%,
±
10%,
±
20%.
Other tolerances available on request.
Insulation Resistance:
1000 Megohm minimum per
MIL-STD-202, Method 302, Test Condition B.
Operating Temperature Range:
- 55°C to + 105°C.
DIMENSIONS
in inches [millimeters]
A
Max.
1.25 [31.75] Min.
1.63 [41.40] Max.
MATERIAL SPECIFICATIONS
Coating:
Epoxy-uniform roll coated.
Lead:
Tinned copper.
Core:
Ferrite.
IRF-1
IRF-3
D
C
Max .
B Max.
MODEL
A (Max.)
0.260
[6.60]
0.385
[9.78]
B (Max.)
0.120
[3.05]
0.165
[4.19]
C (Max.)
0.330
[8.38]
0.410
[10.41]
D
0.0200
±
0.0015
[0.508
±
0.038]
0.025
±
0.002
[0.635
±
0.051]
MECHANICAL SPECIFICATIONS
Terminal Strength:
5 pounds pull per MIL-STD-202,
Method 211, Test Condition A.
Weight:
IRF-1 = 0.3 gram maximum.
IRF-3 = 0.6 gram maximum.
ENVIRONMENTAL PERFORMANCE
TEST
Flammability
Overload
Resistance to
Soldering Heat
Resistance to
Solvents
CONDITIONS
—
—
Test Condition A
—
SPECIFICATIONS
MIL-STD-202,
Method 111
MIL-C-15305
MIL-STD-202,
Method 210
MIL-STD-202,
Method 215
TEST EQUIPMENT*
•
H/P 4342A Q-Meter.
•
Measurements Corporation Megacycle Meter, Model 59.
•
Wheatstone bridge.
*Test procedures per MIL-C-15305.
STANDARD ELECTRICAL SPECIFICATIONS
INDUCTANCE
(
µ
H)
Q
MINIMUM
TEST
FREQUENCY
L&Q
(MHz)
SELF-
RESONANT*
FREQ. MIN.
(MHz)
DCR
MAXIMUM
(Ohms)
0.06
0.06
0.07
0.075
0.075
0.08
0.08
0.09
0.10
0.11
0.12
0.12
0.15
0.18
0.20
0.23
0.25
0.28
0.30
0.32
0.35
0.40
0.45
0.55
0.72
RATED DC**
CURRENT
(mA)
1350
1270
1200
1155
1150
1110
1110
1000
1000
950
900
900
815
740
700
655
630
595
575
555
530
500
470
425
370
MODEL
TOLERANCE
IRF-1
0.10
40
25.0
400.0
±
20%
IRF-1
0.12
40
25.0
400.0
±
20%
IRF-1
0.15
40
25.0
400.0
±
20%
IRF-1
0.18
40
25.0
400.0
±
20%
IRF-1
0.22
40
25.0
380.0
±
20%
IRF-1
0.27
40
25.0
360.0
±
20%
IRF-1
0.33
40
25.0
350.0
±
20%
IRF-1
0.39
40
25.0
320.0
±
20%
IRF-1
0.47
40
25.0
300.0
±
20%
IRF-1
0.56
40
25.0
280.0
±
20%
IRF-1
0.68
40
25.0
250.0
±
20%
IRF-1
0.82
40
25.0
200.0
±
20%
IRF-1
1.0
50
25.0
180.0
±
10%
IRF-1
1.2
50
7.9
165.0
±
10%
IRF-1
1.5
50
7.9
150.0
±
10%
IRF-1
1.8
50
7.9
125.0
±
10%
IRF-1
2.2
50
7.9
115.0
±
10%
IRF-1
2.7
50
7.9
100.0
±
10%
IRF-1
3.3
50
7.9
90.0
±
10%
IRF-1
3.9
50
7.9
80.0
±
10%
IRF-1
4.7
50
7.9
75.0
±
10%
IRF-1
5.6
50
7.9
65.0
±
10%
IRF-1
6.8
50
7.9
60.0
±
10%
IRF-1
8.2
50
7.9
55.0
±
10%
IRF-1
10.0
50
7.9
50.0
±
10%
*Measured with full length lead. **Rated DC current based on a temperature rise of 15°C at + 90°C ambient.
Document Number 34055
Revision 02-Nov-01
For technical questions, contact Magnetics@vishay.com
www.vishay.com
31
IRF
Vishay Dale
Inductors, Epoxy Conformal Coated, Uniform Roll Coated
STANDARD ELECTRICAL SPECIFICATIONS
INDUCTANCE
(
µ
H)
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
680.0
820.0
1000.0
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100.0
120.0
150.0
180.0
220.0
270.0
330.0
390.0
470.0
560.0
680.0
820.0
1000.0
Q
MINIMUM
50
50
50
50
50
50
50
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
55
55
55
55
55
55
55
55
55
50
50
55
55
60
65
65
70
70
75
80
85
75
70
65
60
55
55
50
45
40
40
35
30
70
70
70
70
70
70
65
65
65
65
65
65
TEST
FREQUENCY
L&Q
(MHz)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
SELF-
RESONANT*
FREQ. MIN.
(MHz)
40.0
35.0
30.0
25.0
20.0
24.0
22.0
20.0
18.0
15.0
14.0
13.0
5.40
4.75
4.35
4.0
3.70
3.40
2.80
2.55
2.35
2.0
1.85
1.40
380.0
340.0
300.0
280.0
250.0
230.0
210.0
172.0
157.0
144.0
131.0
121.0
110.0
100.0
94.0
86.0
80.0
74.0
68.0
53.0
45.0
42.0
40.0
34.0
30.0
25.0
19.0
14.5
13.0
12.0
11.0
10.3
9.5
3.8
3.5
3.3
3.0
2.8
2.6
2.4
2.25
2.1
1.95
1.85
1.4
DCR
MAXIMUM
(Ohms)
0.80
0.88
1.0
1.2
1.35
1.5
1.7
2.3
2.6
2.9
3.2
3.5
3.8
4.4
5.0
5.7
6.5
9.5
10.5
11.6
13.0
18.0
23.0
26.0
0.10
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.19
0.21
0.23
0.25
0.28
0.30
0.34
0.37
0.39
0.43
0.48
0.52
0.58
0.63
0.72
0.77
0.84
0.94
1.03
1.12
1.22
1.34
1.47
1.62
1.8
3.7
4.2
4.6
5.1
5.8
6.4
7.0
7.7
8.5
9.4
10.5
14.0
RATED DC**
CURRENT
(mA)
350
335
315
285
270
255
240
205
195
185
175
165
160
150
140
130
120
100
95
90
85
75
65
60
1400
1320
1280
1200
1150
1100
1030
980
920
880
830
790
750
720
670
640
620
590
550
530
500
480
460
430
410
390
370
350
340
320
305
290
275
185
175
165
155
145
137
133
126
120
113
105
100
MODEL
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-1
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
IRF-3
TOLERANCE
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
20%
±
20%
±
20%
±
20%
±
20%
±
20%
±
20%
±
20%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
*Measured with full length lead. **Rated DC current based on a temperature rise of 15°C at + 90°C ambient.
ORDERING INFORMATION
IRF-1
MODEL
10
INDUCTANCE VALUE
±
10%
INDUCTANCE TOLERANCE
www.vishay.com
32
For technical questions, contact Magnetics@vishay.com
Document Number 34055
Revision 02-Nov-01
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