Brands - Vishay Electro-Films
TESTING and INSPECTION

Vishay EFI tests all resistors, capacitors and inductors for electrical tolerance. In addition, all products are visually inspected per MIL-STD-883, M2032 Class H or K. EFI also offers a commercial visual inspection for non-critical applications.

Additional sample testing is available for most environmental specifications; all testing is done in accordance with MIL-PRF-55342 or MIL-PRF-38534. Vishay EFI has the ability to provide a wide variety of testing on site with documentation assures that EFI products have the highest levels of reliability and performance for challenging applications..

MIL-PRF-55342 Group A
Item Test Specification Method Quantity Tested**
1 DC Resistance MIL-PRF-55342 PARA. 4.8.2 100%
2 Thermal Shock MIL-PRF-55342 PARA. 4.8.3 100%*
3 DC Resistance MIL-PRF-55342 PARA. 4.8.2 100%
4 Visual/ Mechanical Inspection MIL-STD-883 METHOD 2010 100%
MIL-PRF-55342 Group A - Space Level
Item Test Specification Method Quantity Tested**
1 DC Resistance MIL-PRF-55342 PARA. 4.8.2 100%
2 Thermal Shock MIL-PRF-55342 PARA. 4.8.3 100%*
3 Power Conditioning MIL-PRF-55342 PARA. 4.8.4 100%
4 DC Resistance MIL-PRF-55342 PARA. 4.8.2 100%
5 Visual/ Mechanical Inspection MIL-STD-883 METHOD 2010 100%
MIL-PRF-55342 Group B
Item Test Specification Method Quantity Tested**
1 TCR MIL-PRF-55342 PARA. 4.8.10 20 (0)
2 Short Time Overload MIL-PRF-55342 PARA. 4.8.6 20 (0)
3 Power Conditioning MIL-PRF-55342 PARA. 4.8.4 20 (0)
4 Bondability/Bond Integrity
(Gold Wedge Bond)
MIL-STD-883 METHOD 2011
Condition D
10 (0)
MIL-PRF-55342 Group C
Item Test Specification Method Quantity Tested**
1 Thermal Shock Condition F MIL-PRF-55342 PARA. 4.8.3 30 (1)
2 Low Temperature Operation MIL-PRF-55342 PARA. 4.8.5 30 (1)
3 Resistance to Bond MIL-PRF-55342 PARA. 4.8.8.2 30 (1)
4 Moisture MIL-PRF-55342 PARA. 4.8.9 30 (1)
5 High Temperature Exposure
150C 100+/-4hrs
MIL-PRF-55342 PARA. 4.8.7 30 (1)
6 Life 70C 2K hr
@Rated Power
MIL-PRF-55342 PARA. 4.8.11 30 (1)
Class H Passive Element Evaluation Requirements
Test Specification Method Quantity Tested**
Electrical MIL-PRF-38534 C.3.4.1 100%
Visual Inspection MIL-PRF-38534 C.3.4.2 100%
Element Electrical MIL-PRF-38534 C.3.4.4 100%
Wire Bond Evaluation MIL-PRF-38534 C.3.4.3 100%
Class K Passive Element Evaluation Requirements
Test Specification Method Quantity Tested**
Electrical MIL-PRF-38534 C.3.4.1 100%
Visual Inspection MIL-PRF-38534 C.3.4.2 100%
Temperature Cycling MIL-PRF-38534 C.3.4.3 10 (0)
Constant Acceleration MIL-PRF-38534 10 (0)
Voltage Conditioning MIL-PRF-38534 C.3.4.7 10 (0)
Visual Inspection MIL-PRF-38534 C.3.4.5 10 (0)
Element Electrical MIL-PRF-38534 C.3.4.4 10 (0)
Wire Bond Evaluation MIL-PRF-38534 C.3.4.3 10 (0)
Class H and K Substrate Evaluation Requirements
Test Specification Method Quantity Tested**
Electrical MIL-PRF-38534 C.3.7.3 100%
Visual Inspection MIL-STD-883 METHOD 2032 100%
Physical Dimensions MIL-STD-883 METHOD 2016 5 (0)
Visual Inspections MIL-STD-883 METHOD 2032 5 (0)
Electrical MIL-PRF-38534 C.3.7.5.1.3 5 (0)
Conductor Thickness or Conductor Resistivity MIL-PRF-38534 C.3.7.5.2.1 3 (0)
Film Adhesion MIL-PRF-38534 C.3.7.5.2.3 3 (0)
Solderability MIL-PRF-38534 C.3.7.5.2.4 3 (0)
TCR MIL-PRF-38534 C.3.7.5.3.1 2 (0)
Wire Bond Evaluation MIL-STD-883 METHOD 2011 10 (0) or 20 (1) wires
Die Shear Evaluation MIL-STD-883 METHOD 2019 2 (0)

For a copy of the testing capabilities, download our Vishay Electro-Films Testing Capabilitiesdocument

*All parts get baked and electrically tested to remain in tolerance. Sample has delta R measured pre- and post-bake.

** Number in parenthesis is the number of allowed failures