BFC280905 Datasheet, PDF (4/5 Pages) Vishay Siliconix – Film Dielectric Trimmers

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BFC2 809 05...
Vishay BCcomponents
TEST PROCEDURES AND REQUIREMENTS
IEC
60418-1
CLAUSE
IEC 60068
TEST
METHOD
TEST
PROCEDURE
24
Eb
Impact bump
4000 ± 10 bumps; 40 g; 6 ms
25
Fc
Vibration
26
Climatic sequence:
Frequency 10 Hz to 55 Hz;
amplitude 0.35 mm;
1.5 h
26.1
B
Dry heat
16 h at upper category
temperature
26.2
D
Damp heat accelerated,
1 cycle; 24 h; +40 °C;
first cycle
95 % to 100 % RH
26.3
Aa
Cold
16 h; -40 °C
26.5
Damp heat accelerated,
1 cycle; 24 h; +40 °C; 
remaining cycles
95 % to 100 % RH
27
Ca
Damp heat steady state
21 days; +40 °C; 
90 % to 95 % RH
29
Mechanical endurance
10 cycles

Maximum 10 cycles: rotation in
180° only (the electrical and
mechanical performance is not
guaranteed if rotated beyond
10 cycles)
REQUIREMENTS
C/C:  0.6 %;
no mechanical damage
C/C:  0.6 %;
no mechanical damage
C/C:  2.5
tan :  10 x 10^-4 for C_max. < 18 pF;
tan :  40 x 10^-4 for C_max.  18 pF

R_ins.:  10 000 M;
rotor contact R:  5 m
Voltage proof:
600 V for 1 min
Visual examination:
no mechanical damage
Operating torque: 
1 mNm to 20 mNm
C/C:  2.5 %

tan :  10 x 10^-4 for C_max. < 18 pF;
tan :  25 x 10^-4 for C_max.  18 pF

R_ins.:  10 000 M;
rotor contact R:  5 m

Voltage proof:
600 V for 1 min

Visual examination:
no mechanical damage

Operating torque:
1 mNm to 20 mNm
C/C:  0.3 %;  2.5 % for 2 pF
C/C after axial thrust:  0.3 %;
rotor contact R:  5 m

Voltage proof:
600 V for 1 min

Visual examination:
no mechanical damage

Operating torque: 
1 mNm to 20 mNm
Revision: 04-Aug-15
4
Document Number: 28529
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