1998 Aug 28
5
Philips Components
Product specification
High ohmic/high voltage resistors
VR25
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the
schedule of “IEC publication 60115-1” category
LCT
/
UCT
/
56
(rated temperature range:
L
ower
C
ategory
T
emperature,
U
pper
C
ategory
T
emperature; damp heat,
long term,
56
days). The testing also covers the
requirements specified by EIA and EIAJ.
The tests are carried out in accordance with
IEC publication 60068,“Recommended basic climatic and
mechanical robustness testing procedure for electronic
components”and under standard atmospheric conditions
according to “IEC 60068-1” subclause 5.3.
Unless otherwise specified the following values apply:
Temperature: 15
°
C to 35
°
C
Relative humidity: 45% to 75%
Air pressure: 86 kPa to 106 kPa
(860 mbar to 1060 mbar).
In Table 4 the tests and requirements are listed with
reference to the relevant clauses of
“IEC publications 60115-1 and 60068”
a short description of the test procedure is also given. In
some instances deviations from the IEC recommendations
were necessary for our method of specifying.
All soldering tests are performed with mildly activated flux.
Table 4
Test procedures and requirements
IEC
60115-1
CLAUSE
IEC
60068
TEST
METHOD
TEST
PROCEDURE
REQUIREMENTS
4.16
U
robustness of
terminations:
tensile all samples
bending half number
of samples
torsion other half
of samples
solderability
resistance to
soldering heat
rapid change of
temperature
bump
4.16.2
4.16.3
Ua
Ub
0.6 mm; load 10 N; 10 s
0.6 mm; load 5 N; 4
×
90
°
number of failures
<
10
×
10
6
number of failures
<
10
×
10
6
4.16.4
Uc
3
×
360
°
in opposite directions
no damage
R/R max.:
±
0.5% + 0.05
good tinning; no damage
R/R max.:
±
0.5% + 0.05
4.17
4.18
Ta
Tb
2 s; 235
°
C; flux 600
thermal shock: 3 s; 350
°
C;
6 mm from body
30 minutes at
55
°
C and
30 minutes at +155
°
C; 5 cycles
3
×
1500 bumps in 3 directions;
40 g
frequency 10 to 500 Hz;
displacement 1.5 mm or
acceleration 10 g; 3 directions;
total 6 hours (3
×
2 hours)
4.19
Na
R/R max.:
±
0.5% + 0.05
4.20
Eb
no damage
R/R max.:
±
0.5% + 0.05
no damage
R/R max.:
±
0.5% + 0.05
4.22
Fc
vibration
4.23
4.23.2
4.23.3
climatic sequence:
dry heat
damp heat (accelerated)
1
st
cycle
cold
low air pressure
damp heat (accelerated)
remaining cycles
Ba
Db
16 hours; 155
°
C
24 hours; 55
°
C; 90 to 100% RH
4.23.4
4.23.5
4.23.6
Aa
M
Db
2 hours;
55
°
C
2 hours; 8.5 kPa; 15 to 35
°
C
5 days; 55
°
C; 95 to 100% RH
R
ins
min.: 10
3
M
R/R max.:
±
1.5% + 0.1