Datasheet

HVR25, HVR37
www.vishay.com
Vishay BCcomponents
Revision: 11-Jul-2018
5
Document Number: 30260
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with IEC 60115-1, category 55/155/56 (rated temperature range
-55 °C to +155 °C; damp heat, long term, 56 days) and along the lines of IEC 60068-2-xx test method. The tests are carried out
under standard atmospheric conditions according to IEC 60068-1, 5.3 unless otherwise specified. In some instances deviations
from IEC recommendations were necessary for our method of specifying.
PERFORMANCE
IEC
60115-1
CLAUSE
IEC
60068-2-xx
TEST
METHOD
TEST PROCEDURE
REQUIREMENTS
PERMISSIBLE CHANGE (R)
HVR25 HVR37
4.8 -
Temperature
coefficient
Between
-55 °C and +155 °C
 200 ppm/K
4.25.1 - Endurance at 70 °C
1000 h;
loaded with P
70
or U
max.
;
1.5 h on; 0.5 h off
for 5 % tolerance  (5 % R + 0.1 )
for 1 % tolerance  (1.5 % R + 0.1 )
4.24 78 (Cab)
Damp heat,
steady state
56 days; 40 °C;
90 % to 95 % RH
loaded with 0.01 P
70
for 5 % tolerance  (5 % R + 0.1 )
for 1 % tolerance  (1.5 % R + 0.1 )
4.23 Climatic sequence
 (1.5 % R + 0.1 )
4.23.2 2 (Ba) Dry heat 16 h, 155 °C
4.23.3 30 (Db)
Damp heat,
cyclic
24 h; 25 °C to 55 °C
90 % to 100 % RH; 1 cycle
4.23.4 1 (Aa) Cold 2 h, -55 °C
4.23.6 30 (Db)
Damp heat,
(accelerated)
remaining cycles
5 days; 25 °C to 55 °C
90 to 100 % RH
4.19 14 (Na)
Rapid change of
temperature
30 min at LCT;
30 min at UCT;
LCT = -55 °C;
UCT = 155 °C;
5 cycles
No visual damage
 (1 % R + 0.1 )
4.13 - Short time overload
Room temperature;
dissipation 6.25 x P
70
(voltage not more than 2 x limiting
voltage,
10 000 V
max.
);
10 cycles 5 s on and 45 s off
for 5 % tolerance  (2 % R + 0.1 )
for 1 % tolerance  (1 % R + 0.1 )
4.12 - Noise IEC 60195 Max. 5 μV/V Max. 2.5 μV/V
4.16
Robustness of
terminations:
No damage
 (1 % R + 0.1 )
4.16.2 21 (Ua1) Tensile all samples Load 10 N; 10 s
4.16.3 21 (Ub)
Bending half number
of samples
Load 5 N; 4 x 90°
4.16.4 21 (Uc)
Torsion other half of
samples
3 x 360° in opposite direction
4.22 6 (Fc) Vibration
Frequency 10 Hz to 500 Hz;
displacement
1.5 mm or acceleration 10 g;
3 directions;
total 6 h (3 x 2 h)
 (1.0 % R+ 0.1 )