IRF
www.vishay.com Vishay Dale
Revision: 17-Oct-11 1Document 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/doc?91000
Inductors, Epoxy Conformal Coated,
Uniform Roll Coated, Axial Leaded
ELECTRICAL SPECIFICATIONS
Inductance Tolerance: ± 5 %, ± 10 %, ± 20 %
Other tolerances available on request
Insulation Resistance: 1000 M minimum per
MIL-STD-202, method 302, test condition B
Operating Temperature: - 55 °C to + 105 °C
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.) B (MAX.) C (MAX.) D
IRF-1 0.260
[6.60]
0.120
[3.05]
0.330
[8.38]
0.0200 ± 0.0015
[0.508 ± 0.038]
IRF-3 0.385
[9.78]
0.170
[4.32]
0.410
[10.41]
0.025 ± 0.002
[0.635 ± 0.051]
DC
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 AMIL-STD-202,
method 210
Resistance to
Solvents -MIL-STD-202,
method 215
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
IND.
(μH)
TOL.
(%)
Q
MIN.
TEST FREQUENCY L AND Q
(MHz)
SRF MIN.
(MHz) (1)
DCR MAX.
()
RATED DC CURRENT
(mA) (2)
IRF-1 0.10 ± 20 40 25.0 400.0 0.06 1350
IRF-1 0.12 ± 20 40 25.0 400.0 0.06 1270
IRF-1 0.15 ± 20 40 25.0 400.0 0.07 1200
IRF-1 0.18 ± 20 40 25.0 400.0 0.075 1155
IRF-1 0.22 ± 20 40 25.0 380.0 0.075 1150
IRF-1 0.27 ± 20 40 25.0 360.0 0.08 1110
IRF-1 0.33 ± 20 40 25.0 350.0 0.08 1110
IRF-1 0.39 ± 20 40 25.0 320.0 0.09 1000
IRF-1 0.47 ± 20 40 25.0 300.0 0.10 1000
IRF-1 0.56 ± 20 40 25.0 280.0 0.11 950
IRF-1 0.68 ± 20 40 25.0 250.0 0.12 900
IRF-1 0.82 ± 20 40 25.0 200.0 0.12 900
IRF-1 1.0 ± 10 50 25.0 180.0 0.15 815
IRF-1 1.2 ± 10 50 7.9 165.0 0.18 740
IRF-1 1.5 ± 10 50 7.9 150.0 0.20 700
Notes
(1) Measured with full length lead
(2) Rated DC current based on maximum temperature rise of 15 °C at + 90 °C ambient
IRF
www.vishay.com Vishay Dale
Revision: 17-Oct-11 2Document 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/doc?91000
IRF-1 1.8 ± 10 50 7.9 125.0 0.23 655
IRF-1 2.2 ± 10 50 7.9 115.0 0.25 630
IRF-1 2.7 ± 10 50 7.9 100.0 0.28 595
IRF-1 3.3 ± 10 50 7.9 90.0 0.30 575
IRF-1 3.9 ± 10 50 7.9 80.0 0.32 555
IRF-1 4.7 ± 10 50 7.9 75.0 0.35 530
IRF-1 5.6 ± 10 50 7.9 65.0 0.40 500
IRF-1 6.8 ± 10 50 7.9 60.0 0.45 470
IRF-1 8.2 ± 10 50 7.9 55.0 0.55 425
IRF-1 10.0 ± 10 50 7.9 50.0 0.72 370
IRF-1 12.0 ± 10 50 2.5 40.0 0.80 350
IRF-1 15.0 ± 10 50 2.5 35.0 0.88 335
IRF-1 18.0 ± 10 50 2.5 30.0 1.0 315
IRF-1 22.0 ± 10 50 2.5 25.0 1.2 285
IRF-1 27.0 ± 10 50 2.5 20.0 1.35 270
IRF-1 33.0 ± 10 50 2.5 24.0 1.5 255
IRF-1 39.0 ± 10 50 2.5 22.0 1.7 240
IRF-1 47.0 ± 10 60 2.5 20.0 2.3 205
IRF-1 56.0 ± 10 60 2.5 18.0 2.6 195
IRF-1 68.0 ± 10 60 2.5 15.0 2.9 185
IRF-1 82.0 ± 10 60 2.5 14.0 3.2 175
IRF-1 100.0 ± 10 60 2.5 13.0 3.5 165
IRF-1 120.0 ± 10 60 0.79 5.40 3.8 160
IRF-1 150.0 ± 10 60 0.79 4.75 4.4 150
IRF-1 180.0 ± 10 60 0.79 4.35 5.0 140
IRF-1 220.0 ± 10 60 0.79 4.0 5.7 130
IRF-1 270.0 ± 10 60 0.79 3.70 6.5 120
IRF-1 330.0 ± 10 60 0.79 3.40 9.5 100
IRF-1 390.0 ± 10 60 0.79 2.80 10.5 95
IRF-1 470.0 ± 10 60 0.79 2.55 11.6 90
IRF-1 560.0 ± 10 60 0.79 2.35 13.0 85
IRF-1 680.0 ± 10 60 0.79 2.0 18.0 75
IRF-1 820.0 ± 10 60 0.79 1.85 23.0 65
IRF-1 1000.0 ± 10 60 0.79 1.40 26.0 60
IRF-3 0.22 ± 20 55 25.0 380.0 0.10 1400
IRF-3 0.27 ± 20 55 25.0 340.0 0.11 1320
IRF-3 0.33 ± 20 55 25.0 300.0 0.12 1280
IRF-3 0.39 ± 20 55 25.0 280.0 0.13 1200
IRF-3 0.47 ± 20 55 25.0 250.0 0.14 1150
IRF-3 0.56 ± 20 55 25.0 230.0 0.15 1100
IRF-3 0.68 ± 20 55 25.0 210.0 0.16 1030
IRF-3 0.82 ± 20 55 25.0 172.0 0.17 980
IRF-3 1.0 ± 10 55 25.0 157.0 0.19 920
IRF-3 1.2 ± 10 50 7.9 144.0 0.21 880
IRF-3 1.5 ± 10 50 7.9 131.0 0.23 830
IRF-3 1.8 ± 10 55 7.9 121.0 0.25 790
IRF-3 2.2 ± 10 55 7.9 110.0 0.28 750
IRF-3 2.7 ± 10 60 7.9 100.0 0.30 720
IRF-3 3.3 ± 10 65 7.9 94.0 0.34 670
IRF-3 3.9 ± 10 65 7.9 86.0 0.37 640
IRF-3 4.7 ± 10 70 7.9 80.0 0.39 620
IRF-3 5.6 ± 10 70 7.9 74.0 0.43 590
IRF-3 6.8 ± 10 75 7.9 68.0 0.48 550
IRF-3 8.2 ± 10 80 7.9 53.0 0.52 530
IRF-3 10.0 ± 10 85 7.9 45.0 0.58 500
IRF-3 12.0 ± 10 75 2.5 42.0 0.63 480
IRF-3 15.0 ± 10 70 2.5 40.0 0.72 460
IRF-3 18.0 ± 10 65 2.5 34.0 0.77 430
IRF-3 22.0 ± 10 60 2.5 30.0 0.84 410
IRF-3 27.0 ± 10 55 2.5 25.0 0.94 390
IRF-3 33.0 ± 10 55 2.5 19.0 1.03 370
IRF-3 39.0 ± 10 50 2.5 14.5 1.12 350
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
IND.
(μH)
TOL.
(%)
Q
MIN.
TEST FREQUENCY L AND Q
(MHz)
SRF MIN.
(MHz) (1)
DCR MAX.
()
RATED DC CURRENT
(mA) (2)
Notes
(1) Measured with full length lead
(2) Rated DC current based on maximum temperature rise of 15 °C at + 90 °C ambient
IRF
www.vishay.com Vishay Dale
Revision: 17-Oct-11 3Document 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/doc?91000
IRF-3 47.0 ± 10 45 2.5 13.0 1.22 340
IRF-3 56.0 ± 10 40 2.5 12.0 1.34 320
IRF-3 68.0 ± 10 40 2.5 11.0 1.47 305
IRF-3 82.0 ± 10 35 2.5 10.3 1.62 290
IRF-3 100.0 ± 10 30 2.5 9.5 1.8 275
IRF-3 120.0 ± 10 70 0.79 3.8 3.7 185
IRF-3 150.0 ± 10 70 0.79 3.5 4.2 175
IRF-3 180.0 ± 10 70 0.79 3.3 4.6 165
IRF-3 220.0 ± 10 70 0.79 3.0 5.1 155
IRF-3 270.0 ± 10 70 0.79 2.8 5.8 145
IRF-3 330.0 ± 10 70 0.79 2.6 6.4 137
IRF-3 390.0 ± 10 65 0.79 2.4 7.0 133
IRF-3 470.0 ± 10 65 0.79 2.25 7.7 126
IRF-3 560.0 ± 10 65 0.79 2.1 8.5 120
IRF-3 680.0 ± 10 65 0.79 1.95 9.4 113
IRF-3 820.0 ± 10 65 0.79 1.85 10.5 105
IRF-3 1000.0 ± 10 65 0.79 1.4 14.0 100
ORDERING INFORMATION
IRF-1 10 μH ± 10 % ER e2
MODEL INDUCTANCE VALUE INDUCTANCE TOLERANCE PACKAGE CODE JEDEC LEAD (Pb)-FREE STANDARD
GLOBAL PART NUMBER
IRF01 ER 100 K
MODEL PACKAGE
CODE
INDUCTANCE
VALUE
INDUCTANCE
TOLERANCE
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
IND.
(μH)
TOL.
(%)
Q
MIN.
TEST FREQUENCY L AND Q
(MHz)
SRF MIN.
(MHz) (1)
DCR MAX.
()
RATED DC CURRENT
(mA) (2)
Notes
(1) Measured with full length lead
(2) Rated DC current based on maximum temperature rise of 15 °C at + 90 °C ambient
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Revision: 12-Mar-12 1Document Number: 91000
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