Type SCR, Commutating Capacitors

Type SCRN Film-Paper/Extended Foil Commutating Capacitor

Type SCRN capacitors are for SCR (silicon controlled rectifier)

commutating applications that require high peak and rms current

capability. These capacitors are ideal for other high frequency and

pulsed applications. The SCRN is supplied in oval or rectangular metal

cases with 1/4 x 20 threaded stud and insulated terminals to withstand

high current and high peak voltages.

Specifications

Capacitance Range

0.25 µF to 50.0 µF

Capacitance Tolerance

±10%

Rated Voltage

200 Vpk to 2000 Vpk

Operating Temperature Range

–40 ºC to +80 ºC

Maximum rms Current

Case codes: A, B, C, D = 60 Irms max. E and F = 100 Irms max.

Maximum rms Voltage

see application guide

Test Voltage between Terminal @ 25ºC

DC voltage 2 x rated peak for 60 s

Test Voltage between Terminals & Case @ 25ºC

2 x reference AC voltage +1000 Vac for 60 s

Life Test

EIA RS401

Life Expectancy

40,000 h life at full rated voltage, current, case temperature and VA

Reliability

Minimum of 95% survival

Standards

EIA RS401

Rohs Compliant

Dimensions

Construction Details

Case Material

Tin Plated Steel or Aluminum

Encapsulation

Biodegradeable, Environmentally

Compatible Fluid

Terminal Material Electro-tin plated copper stud and

molded pillar insulator

CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830

Highlights

- Conforms to EIA RS401 for power semiconductor applications

- Non ferrous covers available for high frequency applications

- 40,000 hours life at full rated voltage and temperature

- High voltage, high current and high frequency

- Custom designs available

Case

Dimensions Inches

Code

A

B

C

D

F

H

Figure

A

1.31 2.16 0.56 1.19 0.81

see table

Fig. 1

B

1.56 2.69 0.50 1.13 1.25

see table

Fig. 1

C

1.91 2.91 0.50 1.13 1.38

see table

Fig. 1

D

1.97 3.66 0.50 1.13 1.38

see table

Fig. 1

E

2.84 4.56 0.50 1.13 2.00

see table

Fig. 2

F

3.75 4.56 0.56 1.19 2.00

see table

Fig. 2

A

±0.03"

B

±0.03"

F

±0.03"

B

±0.03"

A

±0.03"

F

±0.03"

D

±0.06"

C

±0.06"

H

±0.06"

¼ - 20 THD

2 places

H

±0.06"

D

±0.06"

C

±0.06"

¼ - 20 THD

2 places

±0.06”

±0.06”

Figure 1

Figure 2

+0.12”

-0.06”