B32237
High voltage (wound)
Technical data
Operating temperature range
Dissipation factor tan δ (in 10-3)
at 20 °C
(upper limit values)
Max. operating temperature Top,max
Upper category temperature Tmax
Lower category temperature Tmin
Rated temperature TR
at 1 kHz: 8 10-3
at 10 kHz: 15 10-3
+85 °C
+85 °C
40 °C
+85 °C
Insulation resistance Rins
at 20 °C, rel. humidity ≤ 65%
30 000 MΩ
(minimum as-delivered values)
DC test voltage
Category voltage VC
(continuous operation with VDC
or VAC at f ≤ 60 Hz)
Damp heat test
1.2 VR, 2 s
TA (°C)
DC voltage derating AC voltage derating
TA ≤ 70
VC = VR
VC,rms = Vrms
70 <TA ≤85 VC = VR 0.55
VC,rms = Vrms 0.70
21 days/40 °C/93% relative humidity
Limit values after damp
heat test
Capacitance change ∆C/C
Dissipation factor change ∆ tan δ
Insulation resistance Rins
≤ 5%
≤ 3 10-3 (at 1 kHz)
≤ 5 10-3 (at 10 kHz)
≥ 20% of minimum
as-delivered values
Reliability:
Failure rate λ
Service life tSL
10 fit (≤ 10 10-9/h) at 0.5 VR, 40 °C
200 000 h at 1.0 VR, 40 °C
For conversion to other operating conditions and temperatures,
refer to chapter "Quality assurance", page .
Failure criteria:
Total failure
Short circuit or open circuit
Failure due to variation
of parameters
Capacitance change ∆C/C
Dissipation factor tan δ
Insulation resistance Rins
> 10%
> 2 upper limit value
< 150 MΩ
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