Model 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
MECHANICAL 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.
MATERIAL SPECIFICATIONS
Terminal Strength:
5 pounds pull per MIL-STD-202,
Method 211, Test Condition A.
Weight:
IR-2 = .30 gram maximum.
IR-4 = .65 gram maximum.
TEST EQUIPMENT*
•
H/P 4342A Q-Meter.
•
Measurements Corporation Megacycle Meter, Model 59.
•
Wheatstone bridge.
*Test procedures per MIL-C-15305.
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-C-15305
MIL-C-15305
MIL-STD-202,
Method 210
MIL-STD-202,
Method 215
Coating:
Epoxy-uniform roll coated.
Lead:
Tinned copper.
DIMENSIONAL CONFIGURATIONS
[Numbers in brackets indicate millimeters]
A
Max.
1.25 [31.75] Min.
1.63 [41.28] Max.
Barometric
Pressure
Thermal Shock
D
C
Max.
Flammability
B Max.
Overload
MODEL
IR-2
IR-4
A (Max.)
.260
[6.60]
.385
[9.78]
B (Max.)
.120
[3.05]
.180
[4.57]
D
.0200
±
.0015
[.508
±
.038]
.025
±
.002
[.635
±
.051]
Low Temperature
Storage
Resistance to
Soldering Heat
Resistance to
Solvents
C (Max.)
.330
[8.38]
.440
[11.18]
MAXIMUM TEMPERATURE RISE
IR-2
.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
.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
Document Number 34054
Revision 30-Apr-99
www.vishay.com
109
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