B32237 데이터 시트보기 (PDF) - EPCOS AG

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B32237

Metallized polyester film capacitors (MKT)

EPCOS AG 

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

5

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