SCRN246R [CDE]
Film Capacitor, Mixed (film+paper), 10% +Tol, 10% -Tol, 0.25uF, Chassis Mount, RADIAL LEADED;
| 型号： | SCRN246R |
| 厂家： | 
CORNELL DUBILIER ELECTRONICS |
| 描述： | Film Capacitor, Mixed (film+paper), 10% +Tol, 10% -Tol, 0.25uF, Chassis Mount, RADIAL LEADED 电容器 |
| 文件： | 总4页 (文件大小：278K) |
| 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 rectiꢀer)
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
- Custom designs available
Specifcations
Capacitance Range
0.25 µF to 50.0 µF
Capacitance Tolerance
Rated Voltage
10ꢁ
200 Vpk to 2000 Vpk
Operating Temperature Range
Maximum rms Current
Maximum rms Voltage
Test Voltage between Terminal @ 25ºC
Test Voltage between Terminals & Case @ 25ºC
Life Test
–40 ºC to +80 ºC
Case codes: A, B, C, D = 60 Irms max. E and F = 100 Irms max.
see application guide
DC voltage 2 x rated peak for 60 s
2 x reference AC voltage +1000 Vac for 60 s
EIA RS401
Life Expectancy
40,000 h life at full rated voltage, current, case temperature and VA
Minimum of 95ꢁ survival
Reliability
Standards
EIA RS401
Rohs Compliant
Dimensions
Construction Details
Case Material
Encapsulation
Tin Plated Steel or Aluminum
B
Biodegradeable, Environmentally
Compatible Fluid
±0.03"
B
0.06ꢂ
Terminal Material Electro-tin plated copper stud and
molded pillar insulator
A
0.06ꢂ
."
A
±0.03"
F
±0.03"
F
¼ - 20 THD
2 places
±0.03"
¼ - 20 THD
2 places
C
±0.06"
C
±0.06"
D
D
±0.06"
±0.06"
Case
Dimensions Inches
H
H
Code
A
B
C
D
F
H
Figure
Fig. 1
Fig. 1
Fig. 1
Fig. 1
Fig. 2
Fig. 2
+0.12ꢂ
±0.06"
±0.06"
-0.06ꢂ
A
B
C
D
E
1.31 2.16 0.56 1.19 0.81
1.56 2.69 0.50 1.13 1.25
1.91 2.91 0.50 1.13 1.38
1.97 3.66 0.50 1.13 1.38
2.84 4.56 0.50 1.13 2.00
3.75 4.56 0.56 1.19 2.00
see table
see table
see table
see table
see table
see table
Figure 1
Figure 2
F
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type SCR, Commutating Capacitors
Type SCRN Film-Paper/Extended Foil Commutating Capacitor
Ratings
Cap
Catalog
Case
H
Max VA Max
Cap
Catalog
Case
H
Max VA Max
(µF) Part Number Code (Inches) (65 ºC) (Arms)
200 Vpk (Paper Dielectric)
(µF) Part Number Code (Inches) (65 ºC) (Arms)
600 Vpk (Film Dielectric ꢀor Low-loss)
3
SCRN201R-F
SCRN202R-F
SCRN203R-F
SCRN205R-F
SCRN206R-F
SCRN208R-F
SCRN209R-F
SCRN210R-F
A
A
A
A
B
2.13
2.63
3.88
4.75
4.25
5.25
6.75
5.75
400
465
60
60
60
60
60
60
60
60
1
2
SCRN262R-F
SCRN263R-F
SCRN264R-F
SCRN265R-F
SCRN266R-F
A
A
A
A
C
2.38
2.38
3.88
4.25
4.25
2200
2060
3190
4380
6060
60
60
60
60
60
5
10
15
20
30
40
50
625
3
765
5
875
10
C
C
D
1200
1500
1590
1000 Vpk (Film and Paper Dielectric)
1
2
SCRN233R-F
SCRN234R-F
SCRN235R-F
SCRN236R-F
SCRN237R-F
SCRN238R-F
SCRN239R-F
A
A
A
B
C
D
E
2.13
3.13
3.88
4.25
5.75
5.75
5.13
790
60
60
1070
1455
1785
2570
3170
5200
400 Vpk (Film and Paper Dielectric)
3
60
2
SCRN211R-F
SCRN212R-F
SCRN213R-F
SCRN214R-F
SCRN215R-F
SCRN216R-F
SCRN217R-F
SCRN218R-F
SCRN219R-F
A
A
A
B
2.63
2.63
3.88
4.75
4.75
6.25
6.75
8.00
6.25
790
970
60
60
60
60
60
60
60
60
100
5
60
3
10
15
20
60
5
1130
1930
2240
2800
3720
4330
6050
60
10
15
20
30
40
50
100
C
C
D
D
E
1500 Vpk (Film and Paper Dielectric)
.5
1
SCRN240R-F
SCRN241R-F
SCRN242R-F
SCRN243R-F
SCRN244R-F
SCRN245R-F
A
A
B
C
C
E
2.13
2.88
3.50
4.25
5.75
5.13
990
60
60
1240
1890
2550
3250
6500
2
60
3
60
600 Vpk (Film and Paper Dielectric)
5
60
2
SCRN220R-F
SCRN221R-F
SCRN222R-F
SCRN224R-F
SCRN226R-F
SCRN227R-F
SCRN229R-F
SCRN230R-F
SCRN231R-F
SCRN232R-F
A
A
A
C
C
D
D
D
E
2.63
3.13
4.25
4.25
5.75
5.75
6.75
8.00
6.25
7.25
815
60
60
10
100
3
1200
1420
2040
2800
3260
3720
4330
6060
6850
2000 Vpk (Film and Paper Dielectric)
5
60
.25
.33
.5
1
SCRN246R-F
SCRN257R-F
SCRN247R-F
SCRN248R-F
SCRN249R-F
SCRN251R-F
SCRN253R-F
SCRN256R-F
A
A
A
A
B
C
D
F
2.13
2.13
2.63
3.13
4.25
4.75
5.75
5.75
990
60
60
60
60
60
60
60
100
10
15
20
25
30
40
50
60
1000
1180
1300
2230
2800
4020
7600
60
60
60
2
60
3
100
100
5
E
10
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
Type SCR, Commutating Capacitors
Type SCRN Film-Paper/Extended Foil Commutating Capacitor
Application Guide
How to Choose a Commutating Capacitor
1. From circuit analysis or measurement, determine application values
3. Check that your application’s rms current is no more than the capacitor’s
Max. Amps RMS. You can calculate the current from your Vrms using the
equations in the following section.
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 ꢀlm dielectric units, Catalog Numbers SCRN262R through
SCRN266R, with higher VA capability.
Using Volt-Ampere Ratings
Pulse Wave Applications
V peak
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.
Voltage
ΔV
T
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.
Calculate the capacitor’s actualVA 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.
Current
I peak
Figure 1
For a sinewave voltage the current is:
Irms = 2π ꢀCVrmsX10-6
and for a squarewave the current is:
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
CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830
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