IR
Vishay Dale
Inductors
Epoxy Conformal Coated
Uniform Roll Coated
FEATURES
•
•
•
•
•
•
Flame-retardant coating.
Color band identification.
Excellent environmental characteristics.
Uniform coating is excellent for automatic insertion.
Comparable in quality to molded chokes at a lower price.
Epoxy coating is more durable than lacquer coated
models, yet is priced comparably.
ELECTRICAL SPECIFICATIONS
Inductance Tolerance:
±
1%,
±
3%,
±
5%,
±
10%,
±
20%.
Other tolerances available on request.
Insulation Resistance:
1000 Megohm minimum per
MIL-STD-202, Method 302, Test Condition B.
Dielectric Strength:
1000 VAC per MIL-STD-202,
Method 301.
MECHANICAL SPECIFICATIONS
Terminal Strength:
5 pounds pull per MIL-STD-202,
Method 211, Test Condition A.
Weight:
IR-2 = 0.30 gram maximum.
IR-4 = 0.65 gram maximum.
TEST EQUIPMENT*
•
H/P 4342A Q-Meter.
•
Measurements Corporation Megacycle Meter, Model 59.
•
Wheatstone bridge.
*Test procedures per MIL-PRF-15305.
MATERIAL SPECIFICATIONS
Coating:
Epoxy-uniform roll coated.
Lead:
Tinned copper.
DIMENSIONS
in inches [millimeters]
ENVIRONMENTAL PERFORMANCE
TEST
CONDITIONS
Test Condition C
Test Condition A-1
—
—
—
Test Condition A
—
SPECIFICATIONS
MIL-STD-202,
Method 105
MIL-STD-202,
Method 107
MIL-STD-202,
Method 111
MIL-PRF-15305
MIL-PRF-15305
MIL-STD-202,
Method 210
MIL-STD-202,
Method 215
Barometric
Pressure
Thermal Shock
A
Max.
1.25 [31.75] Min.
1.63 [41.28] Max.
D
C
Max.
Flammability
B Max.
Overload
MODEL
IR-2
IR-4
A (Max.)
0.260
[6.60]
0.385
[9.78]
B (Max.)
0.120
[3.05]
0.180
[4.57]
C (Max.)
0.330
[8.38]
0.440
[11.18]
D
0.0200
±
0.0015
[0.508
±
0.038]
0.025
±
0.002
[0.635
±
0.051]
Low Temperature
Storage
Resistance to
Soldering Heat
Resistance to
Solvents
MAXIMUM TEMPERATURE RISE
IR-2
0.1µH to 1.0µH = + 35°C @ + 90°C ambient.
1.2µH to 27µH = + 15°C @ + 90°C ambient.
33µH to 1000µH = + 15°C @ + 90°C ambient.
IR-4
0.15µH to 4.7µH = + 35°C @ + 90°C ambient.
5.6µH to 33µH = + 15°C @ + 90°C ambient.
36µH to 240µH = + 15°C @ + 90°C ambient.
270µH to 1800µH = + 35°C @ + 90°C ambient.
- 55°C to + 125°C
- 55°C to + 105°C
- 55°C to + 105°C
- 55°C to + 125°C
OPERATING TEMPERATURE RANGE
- 55°C to + 125°C
- 55°C to + 105°C
- 55°C to + 105°C
www.vishay.com
28
For technical questions, contact Magnetics@vishay.com
Document Number 34054
Revision 18-Oct-04
IR
Inductors, Epoxy Conformal Coated, Uniform Roll Coated
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-2
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IND.
(
µ
H)
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
01.0
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
0.15
0.22
0.33
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
TOL.
±
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%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
20%
±
20%
±
20%
±
20%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
Q
MIN.
40
40
38
35
33
33
30
30
30
30
28
28
25
25
28
30
30
37
45
45
45
50
50
55
55
45
40
50
50
50
45
45
45
45
50
50
50
30
30
30
30
30
30
30
30
30
30
30
30
50
50
45
45
50
50
50
50
33
33
33
33
33
33
33
33
TEST FREQ.
L&Q
(MHz)
25.0
25.0
25.0
25.0
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
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
SELF-RESONANT*
FREQ. MIN.
(MHz)
680.0
640.0
600.0
550.0
510.0
430.0
410.0
365.0
330.0
300.0
275.0
250.0
230.0
150.0
140.0
125.0
115.0
100.0
90.0
80.0
75.0
65.0
60.0
55.0
50.0
40.0
35.0
30.0
25.0
20.0
24.0
22.0
20.0
18.0
15.0
14.0
13.0
12.0
11.0
10.0
9.0
8.0
7.0
6.5
6.0
5.0
4.0
3.8
3.4
525.0
450.0
360.0
310.0
280.0
250.0
220.0
200.0
180.0
160.0
150.0
135.0
120.0
110.0
100.0
90.00
DCR
MAX.
(Ohms)
0.08
0.09
0.10
0.12
0.14
0.16
0.22
0.30
0.35
0.50
0.60
0.85
1.0
0.18
0.22
0.30
0.40
0.55
0.85
1.0
1.2
1.8
2.0
2.7
3.7
2.7
2.8
3.1
3.3
3.5
3.4
3.6
4.5
5.7
6.7
7.3
8.0
13.0
15.0
17.0
21.0
25.0
28.0
35.0
42.0
46.0
60.0
65.0
72.0
0.03
0.055
0.09
0.12
0.135
0.15
0.22
0.29
0.42
0.50
0.65
0.95
1.20
2.0
2.30
2.60
RATED**
DC CURRENT
(mA)
1350
1270
1200
1105
1025
960
815
700
650
545
495
415
385
590
535
455
395
355
270
250
230
185
175
155
130
155
150
145
140
135
130
125
110
100
92
88
84
66
61
57
52
47
45
40
36
35
30
29
28
2450
1810
1400
1225
1150
1100
900
785
650
600
525
435
385
300
280
260
Vishay Dale
*Measured with full length lead. **Rated DC Current based on maximum temperature rise as shown in table.
Document Number 34054
Revision 18-Oct-04
For technical questions, contact Magnetics@vishay.com
www.vishay.com
29
PHENOLIC CORE
FERRITE CORE
IRON CORE
PHENOLIC CORE
IR
Vishay Dale
Inductors, Epoxy Conformal Coated, Uniform Roll Coated
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IR-4
IND.
(
µ
H)
5.6
6.8
8.2
10.0
12.0
15.0
18.0
22.0
27.0
33.0
36.0
39.0
43.0
47.0
51.0
56.0
62.0
68.0
75.0
82.0
91.0
100.0
110.0
120.0
130.0
150.0
160.0
180.0
200.0
220.0
240.0
270.0
300.0
330.0
360.0
390.0
430.0
470.0
510.0
560.0
620.0
680.0
750.0
820.0
910.0
1000.0
1100.0
1200.0
1300.0
1500.0
1600.0
1800.0
TOL.
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
10%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
±
5%
Q
MIN.
45
50
50
55
65
65
75
75
60
65
60
60
60
55
55
55
55
55
55
50
50
50
60
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
65
55
55
55
55
55
30
30
30
30
30
30
TEST FREQ.
L&Q
(MHz)
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
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
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.25
0.25
0.25
0.25
0.25
0.25
SELF-RESONANT*
FREQ. MIN.
(MHz)
60.0
55.0
50.0
45.0
42.0
40.0
34.0
30.0
25.0
19.0
15.5
14.5
13.7
13.0
12.7
12.0
11.5
11.0
10.5
10.3
10.0
9.5
8.9
8.7
8.5
8.0
7.5
7.0
6.5
6.2
5.9
5.7
5.4
5.1
4.8
4.5
4.2
3.9
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.3
2.1
2.0
1.9
1.8
1.7
1.6
DCR
MAX.
(Ohms)
32
0.50
0.60
0.90
1.10
1.40
2.25
2.50
2.60
3.0
2.50
2.60
2.70
2.75
2.85
3.0
3.15
3.30
3.70
3.90
4.30
4.50
4.90
5.20
5.45
6.05
6.40
6.75
7.10
7.45
7.80
11.0
11.5
12.0
15.5
16.3
17.1
17.9
18.8
24.7
25.9
27.2
28.6
30.0
31.5
33.1
43.5
45.7
49.0
52.5
54.0
56.7
RATED**
DC CURRENT
(mA)
495
395
360
290
265
240
185
175
170
165
180
176
172
170
167
164
160
156
147
143
136
133
128
124
121
114
111
108
106
103
101
129
125
123
108
105
102
100
98
85
83
81
79
77
76
74
64
63
61
59
58
56
*Measured with full length lead. **Rated DC Current based on maximum temperature rise as shown in table.
ORDERING INFORMATION
IR-2
MODEL
10
µ
H
INDUCTANCE VALUE
±
10%
INDUCTANCE TOLERANCE
www.vishay.com
30
For technical questions, contact Magnetics@vishay.com
Document Number 34054
Revision 18-Oct-04
IRON CORE
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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