B32656S
Snubber (wound)
Technical data
Operating temperature range
Max. operating temperature T op,max
Upper category temperature T max
Lower category temperature T min
Rated temperature T R
+110 ° C
+100 ° C
55 ° C
+85 ° C
Dissipation factor tan δ (in 10 -3 ) at
at 20 ° C
1 kHz
C R ≤ 0.1 μ F
0.1 μ F<C R ≤ 1 μ F
0.5
C R >1 μ F
0.5
(upper limit values)
10 kHz
0.8
1.5
100 kHz 5.0
Insulation resistance R ins
C R ≤ 0.33 μ F
C R > 0.33 μ F
or time constant τ = C R
R ins
100 G ?
30000 s
at 20 ° C, rel. humidity ≤ 65%
(minimum as-delivered values)
DC test voltage
1.6
V R , 2 s
Category voltage V C
T A ( ° C)
DC voltage derating
AC voltage derating
(continuous operation with V DC T A ≤ 85
V C = V R
V C,RMS = V RMS
or V AC at f ≤ 1 kHz)
85<T A 100 V C = V R
(165 T A )/80
V C,RMS =V RMS
(165 T A )/80
Operating voltage V op for
T A ( ° C)
DC voltage (max. hours)
AC voltage (max. hours)
short operating periods
T A ≤ 85
V op = 1.25
V C (2000 h)
V op = 1.0
V C,RMS (2000 h)
(V DC or V AC at f ≤ 1 kHz)
85<T A ≤ 100 V op = 1.25
V C (1000 h)
V op = 1.0
V C,RMS (1000 h)
Damp heat test
56 days/40 ° C/93% relative humidity
Limit values after damp
Capacitance change ? C/C
≤ 3%
heat test
Dissipation factor change ? tan δ
≤ 0.5
≤ 1.0
10 -3 (at 1 kHz)
10 -3 (at 10 kHz)
Insulation resistance R ins
≥ 50% of minimum
Reliability:
or time constant τ = C R
R ins
as-delivered values
Failure rate λ
1 fit ( ≤ 1
10 -9 /h) at 0.5
V R , 40 ° C
Service life t SL
200 000 h at 1.0
V R , 85 ° C
For conversion to other operating conditions and temperatures,
refer to chapter "Quality, 2 Reliability".
Failure criteria:
Total failure
Short circuit or open circuit
Failure due to variation
Capacitance change ? C/C
> 10%
of parameters
Dissipation factor tan δ
>4
upper limit value
Insulation resistance R ins
< 1500 M ? (C R ≤ 0.33 μ F)
Please read Cautions and warnings and
Important notes at the end of this document.
or time constant τ = C R
Page 17 of 29
R ins
< 500 s (C R >0.33 μ F)
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