Leaded Varistors B72220S3151K101
SuperioR Series SIOV-S20K150E3
PPD VAR PD 2017-10-13
Please read Cautions and warnings and Page 8 of 11
Important notes at the end of this document.
Reliability Data Environmental
Characteristics Test Methods/Description Specifications
Endurance at upper
category temperature
1000 h at UCT
After having continuously applied the maximum
allowable voltage at UCT ±2 °C for 1000 h, the
specimen shall be stored at room temperature and
normal humidity for 1 to 2 h.
Thereafter, the change of V
v
shall be measured.
|∆V/V (1 mA)| ≤10%
Damp heat, steady
state
IEC 60068-2-78, test Ca
The specimen shall be subjected to 40 ±2 °C, 90 to
95 % r.H. for 56 days without load / with 10% of the
maximum continuous DC operating voltage V
DC
.
Then stored at room temperature and normal
humidity for 1 to 2 h.
Thereafter, the change of V
v
shall be measured.
Thereafter, insulation resistance R
ins
shall be
measured at V = 500 V (insulated varistors only).
|∆V/V (1 mA)| ≤10%
R
ins
≥100 MΩ
Climatic sequence
The specimen shall be subjected to:
a) IEC 60068-2-2, test Ba, dry heat at UCT, 16 h
b) IEC 60068-2-30, test Db, damp heat, 1st cycle:
55 °C, 93% r.H., 24 h
c) IEC 60068-2-1, test Aa, cold, LCT, 2 h
d) IEC 60068-2-30, test Db, damp heat, additional 5
cycles: 55 °C/25 °C, 93% r.H., 24 h/cycle.
Then the specimen shall be stored at room
temperature and normal humidity for 1 to 2 h.
Thereafter, the change of V
v
shall be measured.
Thereafter, insulation resistance R
ins
shall be
measured at V = 500 V.
|∆V/V (1 mA)| ≤10%
R
ins
≥100 MΩ
Rapid change of
temperature
-40°C to 125°C, dwell time 10 min, 1000 cycles
|∆V/V (1 mA)| ≤5%
No visible damage
Note:
UCT = Upper category temperature
LCT = Lower category temperature
R
ins
= Insulation resistance
