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Vishay Roederstein

Revision: 21-Dec-15

10

Document Number: 28162

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

SUB-GROUP C1B PART OF SAMPLE



OF SUB-GROUP C1

4.7

Vibration

Mounting:



see section “Mounting” of this specification

Procedure B4

Frequency range: 10 Hz to 55 Hz

Amplitude: 0.75 mm or

Acceleration 98 m/s2

(whichever is less severe)

Total duration 6 h



4.7.2

Final inspection

Visual examination

No visible damage



4.9

Shock

Mounting:



see section “Mounting” for more information

Pulse shape: half sine

Acceleration: 490 m/s2

Duration of pulse: 11 ms



4.9.3

Final measurements

Visual examination

No visible damage



Capacitance

|

C/C|  2 % of the value measured initally

Tangent of loss angle

Increase of tan

:

for C

for C > 470 nF

Compared to values measured initially



Insulation resistance

 50 % of values specified in section

“Insulation Resistance” of this specification

SUB-GROUP C1 COMBINED SAMPLE



OF SPECIMENS OF SUB-GROUPS



C1A AND C1B

4.10

Climatic sequence



4.10.2

Dry heat

Temperature: 110 °C

Duration: 16 h



4.10.3

Damp heat cyclic



Test Db, first cycle



4.10.4

Cold

Temperature: -55 °C

Duration: 2 h



4.10.6

Damp heat cyclic

Test Db, remaining cycles



4.10.6.2 Final measurements

15 min after removal from testchambers



No breakdown or flashover

Visual examination

No visible damage



Legible marking



Capacitance

|

C/C|  3 % of the value measured initially

Tangent of loss angle

Increase of tan

:

for C

for C > 470 nF

Compared to values measured in



4.3.1 or 4.6.1 as applicable



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