SCRN239R-F [CDE]
Commutating Capacitors Film-Paper/Extended Foil Commutating Capacitor; 换流电容器薄膜，纸/铝箔延长换向电容器
| 型号： | SCRN239R-F |
| 厂家： | 
CORNELL DUBILIER ELECTRONICS |
| 描述： | Commutating Capacitors Film-Paper/Extended Foil Commutating Capacitor |
| 文件： | 总3页 (文件大小：170K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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.
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
Specifications
0.25 µF to 50.0 µF
200 Vpk to 2000 Vpk
±10%
–40 ºC to +65 ºC
+80 ºC
Capacitance Range:
Voltage Range:
Capacitance Tolerance:
Temperature Range:
Surface Temperature:
Complies with the EU Directive 2002/95/EC
requirement restricting the use of Lead (Pb), Mercury
(Hg), Cadmium (Cd), Hexavalent chromium (Cr(VI)),
PolyBrominated Biphenyls (PBB) and PolyBrominated
Diphenyl Ethers (PBDE).
Ratings
Cap
(µF) Part Number Code (In.) (65 ºC) (Arms)
200 Vpk (Paper Dielectric)
Catalog
Case H Max VA Max
Cap Catalog Case H Max VA Max
(µF) Part Number Code (In.) (65 ºC) (Arms)
600 Vpk (Film Dielectric for Low-loss)
1 SCRN262R-F A 2.38 2200
2 SCRN263R-F A 2.38 2060
3 SCRN264R-F A 3.88 3190
5 SCRN265R-F A 4.25 4380
10 SCRN266R-F C 4.25 6060
60
60
60
60
60
3 SCRN201R-F A 2.13 400
5 SCRN202R-F A 2.63 465
10 SCRN203R-F A 3.88 625
15 SCRN205R-F A 4.75 765
20 SCRN206R-F B 4.25 875
30 SCRN208R-F C 5.25 1200
40 SCRN209R-F C 6.75 1500
50 SCRN210R-F D 5.75 1590
400 Vpk (Film and Paper Dielectric)
60
60
60
60
60
60
60
60
1000 Vpk (Film and Paper Dielectric)
1 SCRN233R-F A 2.13 790
2 SCRN234R-F A 3.13 1070
3 SCRN235R-F A 3.88 1455
5 SCRN236R-F B 4.25 1785
10 SCRN237R-F C 5.75 2570
15 SCRN238R-F D 5.75 3170
20 SCRN239R-F E 5.13 5200
60
60
60
60
60
60
100
2 SCRN211R-F
A
2.63 790
60
60
60
60
60
60
60
60
100
3 SCRN212R-F A 2.63 970
5 SCRN213R-F A 3.88 1130
10 SCRN214R-F B 4.75 1930
15 SCRN215R-F C 4.75 2240
20 SCRN216R-F C 6.25 2800
30 SCRN217R-F D 6.75 3720
40 SCRN218R-F D 8.00 4330
50 SCRN219R-F E 6.25 6050
1500 Vpk (Film and Paper Dielectric)
.5 SCRN240R-F A 2.13 990
1 SCRN241R-F A 2.88 1240
2 SCRN242R-F B 3.50 1890
3 SCRN243R-F C 4.25 2550
5 SCRN244R-F C 5.75 3250
10 SCRN245R-F E 5.13 6500
60
60
60
60
60
100
600 Vpk (Film and Paper Dielectric)
2 SCRN220R-F A 2.63 815
3 SCRN221R-F A 3.13 1200
5 SCRN222R-F A 4.25 1420
10 SCRN224R-F C 4.25 2040
15 SCRN226R-F C 5.75 2800
20 SCRN227R-F D 5.75 3260
25 SCRN229R-F D 6.75 3720
30 SCRN230R-F D 8.00 4330
60
60
60
60
60
60
60
60
2000 Vpk (Film and Paper Dielectric)
.25 SCRN246R-F A 2.13 990
.33 SCRN257R-F A 2.13 1000
.5 SCRN247R-F A 2.63 1180
1 SCRN248R-F A 3.13 1300
2 SCRN249R-F B 4.25 2230
3 SCRN251R-F C 4.75 2800
5 SCRN253R-F D 5.75 4020
10 SCRN256R-F F 5.75 7600
60
60
60
60
60
60
60
40 SCRN231R-F E 6.25 6060
50 SCRN232R-F E 7.25 6850
100
100
100
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
Type SCR Commutating Capacitors
Outline Drawings
RoHS Compliant
B
±.03”
B
±.03”
A
±.03”
A
±.03”
F
±.03”
1/4 - 20 THD
F
±.03”
1/4 - 20 THD
2 Plcs)
2 Plcs)
D
±.06”
±.03”
D
±.06”
±.03”
C
±.06”
±.03”
C
±.06”
±.03”
H
±.06”
H
±.06”
�
�
Figure 2
Figure 1
Case
Code
Dimensions Inches
A
B
C
D
F
H
Figure
A
B
C
D
E
F
1.31
1.56
1.91
1.97
2.84
3.75
2.16
2.69
2.91
3.66
4.56
4.56
0.56
0.50
0.50
0.50
0.50
0.56
1.19
1.13
1.13
1.13
1.13
1.19
0.81 see table Fig. 1
1.25 see table Fig. 1
1.38 see table Fig. 1
1.38 see table Fig. 1
2.00 see table Fig. 2
2.00 see table Fig. 2
Mounting Hardware
See catalog page 5.000 for hardware
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
Type SCR Commutating Capacitors
How to Choose a Commutating Capacitor
the current from your Vrms using the equations in the
following section.
1. From circuit analysis or measurement, determine
application values for these six parameters:
Nominal capacitance in µF
Current pulse width in µs
Current pulse period in µs
Maximum peak voltage
Continuous AC voltage in Vrms
Maximum volt-amps (VA)
4. Check that your application’s volt-amperes is not more
than the capacitor’s VA capability. The VA capability is the
max VA rating times the Volt-Ampere multiplier from Figure
2 (Current Pulse Width) and that times the Volt-Ampere
Multiplier from Figure 3 (Ambient Temperature). See the
following section for more on using volt-ampere multipliers
.
2. Choose a capacitor from the ratings table of the desired
nominal capacitance with a peak voltage rating no less than
your maximum peak voltage.
If you need a greater VA capability, repeat these steps for a
higher peak voltage capacitor or consider connecting units in
parallel to divide the VA required. For up to peak voltage of
600 V, you may also consider polypropylene film dielectric
units, Catalog Numbers SCRN262R through SCRN266R,
with higher VA capability.
3. Check that your application’s rms current is no more
than the capacitor’s Max. Amps RMS. You can calculate
Using Volt-Ampere Ratings
Pulse Wave Applications
The capacitors maximum VA rating is the maximum product
of the sine wave voltage and current that may be applied at
65 ºC without overheating the capacitor and reducing its
expected life. For other temperatures and pulsed current,
use the multipliers of Figures 2 and 3 to derate the Max VA
rating.
V peak
Voltage
ΔV
Current
The Max Amps RMS rating is set by the capability of the
capacitor terminals. Exceeding this limit can damage the
terminals and cause capacitor failure.
I peak
Figure 1
Calculate the capacitor’s actual VA load as the product of the
rms voltage across the capacitor and the rms current through
the capacitor. To calculate rms current for an applied sine
wave or squarewave voltage, use these equations.
Polypropylene
Paper
PP Film/Paper
For a sinewave voltage the current is:
Irms = 2π fCVrmsX10-6
and for a squarewave the current is:
Figure 2
Irms = C∆V/[0.64(tT)0.5] = Ipeak(t/T)0.5
where (f) is repetition frequency in Hz, C is nominal
capacitance in µF, �V the peak-to-peak squarewave amplitude
in volts, (t) is the pulse width in µs and T is the pulse period
in µs.
The peak current for the square wave voltage is:
Ipeak = C∆V/0.64t
Figure 3
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830 • www.cde.com
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