F1772 X2

www.vishay.com

Vishay Roederstein

Revision: 15-Apr-14

8

Document Number: 28161

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

SUB-GROUP C1A PART OF SAMPLE



OF SUB-GROUP C1

4.19 Component solvent resistance

Isopropylalcohol at room temperature

Method: 2

Immersion time: 5 min ± 0.5 min

Recovery time: Min. 1 h, max. 2 h



4.4.2 Final measurements

Visual examination

No visible damage

Legible marking



Capacitance

|

C/C|  5 % of the value measured initially

Tangent of loss angle

Increase of tan

 

 0.008 for: C 1 μF or

 0.005 for: C > 1 μF

Compared to values measured initially



Insulation resistance

As specified in section “Insulation

Resistance” of this specification

SUB-GROUP C1B PART OF SAMPLE



OF SUB-GROUP C1

Initial measurements

Capacitance

Tangent of loss angle:



For C

 1 μF at 10 kHz

For C > 1 μF at 1 kHz



4.20 Solvent resistance of the marking

Isopropylalcohol at room temperature

Method: 1

Rubbing material: Cotton wool

Immersion time: 5 min ± 0.5 min



No visible damage

Legible marking

4.6

Rapid change of temperature

A = -40 °C

B = +110 °C

5 cycles



Duration t = 30 min



4.6.1 Inspection

Visual examination

No visible damage



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



4.9.2 Final measurements

Visual examination

No visible damage



Capacitance

|

C/C|  5 % of the value measured initally

Tangent of loss angle

Increase of tan

 

 0.008 for: C  1 μF or

 0.005 for: C > 1 μF

Compared to values measured initially



Insulation resistance

As specified in section “Specific Reference”

of this specification

GROUP C INSPECTION REQUIREMENTS

SUB-CLAUSE NUMBER AND TEST

CONDITIONS

PERFORMANCE REQUIREMENTS