F1772 X2

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Vishay Roederstein

Revision: 15-Apr-14

10

Document Number: 28161

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

SUB-GROUP C3

4.13.1 Initial measurements

Capacitance

Tangent of loss angle:



For C

 1 μF at 10 kHz

For C > 1 μF at 1 kHz

4.13

Impulse voltage

3 successive impulses, full wave, peak

voltage:



X2: 2.5 kV for C

 1 μF

X2: 2.5 kV/

C for C > 1 μF

Max. 24 pulses



No self healing breakdowns or flash-over

4.14

Endurance

Duration: 1000 h

Once in every hour the voltage is increased to

1000 V (RMS) for 0.1 s via resistor of



47

 ± 5 %

4.14.7 Final measurements

Visual examination

No visible damage



Legible marking



Capacitance

|

C/C|  5 % compared to values measured

in 4.13.1



Tangent of loss angle

Increase of tan

 

 0.008 for: C  1 μF or

 0.005 for: C > 1 μF

Compared to values measured in 4.13.1



Voltage proof



case



No permanent breakdown or flash-over

Insulation resistance

 50 % of values specified in section

“Insulation Resistance” of this specification

SUB-GROUP C4

4.15

Charge and discharge

10 000 cycles

Discharge resistance:

4.15.1 Initial measurements

Capacitance

Tangent of loss angle:



For C

 1 μF at 10 kHz

For C > 1 μF at 1 kHz



4.13.3 Final measurements

Capacitance

|

C/C|  10 % compared to values measured

in 4.15.1



Tangent of loss angle

Increase of tan

 

 0.008 for: C  1 μF or

 0.005 for: C > 1 μF

Compared to values measured in 4.15.1



Insulation resistance

 50 % of values specified in section

“Insulation Resistance” of this specification

GROUP C INSPECTION REQUIREMENTS

SUB-CLAUSE NUMBER AND TEST

CONDITIONS

PERFORMANCE REQUIREMENTS

R

435 V

DC

1.5 x C dU dt





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=