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IRF
www.vishay.com
Vishay Dale
Revision: 17-Oct-11
1
Document Number: 34055
For technical questions, contact:
magnetics@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc91000
Inductors, Epoxy Conformal Coated,
Uniform Roll Coated, Axial Leaded
ELECTRICAL SPECIFICATIONS
Inductance Tolerance:
± 5 %, ± 10 %, ± 20 %
Other tolerances available on request
Insulation
Resistance:
MIL-STD-202, method 302, test condition B
Operating Temperature:
- 55 °C to + 105 °C
1000
M
minimum
per
MATERIAL SPECIFICATIONS
Coating:
Epoxy-uniform roll coated
Lead:
Tinned copper
Core:
Ferrite
MECHANICAL SPECIFICATIONS
Terminal Strenght:
5 pounds pull per MIL-STD-202,
method 211, test condition A
Weight:
IRF-1 = 0.3 g maximum
IRF-3 = 0.6 g maximum
FEATURES
Flame-retardant coating
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
Compliant to RoHS Directive 2002/95/EC
TEST EQUIPMENT
(1)
H/P 4342A Q-meter
Measurements corporation megacycle meter, model 59
Whearstone bridge
Note
(1)
Test procedures per MIL-PRF-15305
DIMENSIONS
in inches [millimeters]
MODEL
A (MAX.)
0.260
[6.60]
0.385
[9.78]
B (MAX.)
0.120
[3.05]
0.170
[4.32]
C (MAX.)
0.330
[8.38]
0.410
[10.41]
D
IRF-1
0.0200 ± 0.0015
[0.508 ± 0.038]
0.025 ± 0.002
[0.635 ± 0.051]
IRF-3
D
C
Max.
B Max.
A
Max.
1.25 [31.75] Min.
1.63 [41.28] Max.
ENVIRONMENTAL PERFORMANCE
TEST
CONDITIONS
SPECIFICATIONS
Flammability
-
MIL-STD-202,
method 111
Overload
-
MIL-PRF-15305
Resistance to
Soldering Heat
A
MIL-STD-202,
method 210
Resistance to
Solvents
-
MIL-STD-202,
method 215
STANDARD ELECTRICAL SPECIFICATIONS
IND.
(μH)
(%)
IRF-1
0.10
± 20
IRF-1
0.12
± 20
IRF-1
0.15
± 20
IRF-1
0.18
± 20
IRF-1
0.22
± 20
IRF-1
0.27
± 20
IRF-1
0.33
± 20
IRF-1
0.39
± 20
IRF-1
0.47
± 20
IRF-1
0.56
± 20
IRF-1
0.68
± 20
IRF-1
0.82
± 20
IRF-1
1.0
± 10
IRF-1
1.2
± 10
IRF-1
1.5
± 10
Notes
(1)
Measured with full length lead
(2)
Rated DC current based on maximum temperature rise of 15 °C at + 90 °C ambient
MODEL
TOL.
Q
MIN.
40
40
40
40
40
40
40
40
40
40
40
40
50
50
50
TEST FREQUENCY L AND 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
SRF MIN.
(MHz)
(1)
400.0
400.0
400.0
400.0
380.0
360.0
350.0
320.0
300.0
280.0
250.0
200.0
180.0
165.0
150.0
DCR MAX.
(
)
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
RATED DC CURRENT
(mA)
(2)
1350
1270
1200
1155
1150
1110
1110
1000
1000
950
900
900
815
740
700