Type SCR Commutating Capacitors

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 Specifications Ratings Capacitance Range: Voltage Range: Capacitance Tolerance: Temperature Range: Surface Temperature: Cap Catalog Case H Max V Max (µf) Part Number Code (In.) (65 ºC) (rms) 200 Vpk (Paper Dielectric) 3 SCRN201R-F 2.13 400 60 5 SCRN202R-F 2.63 465 60 10 SCRN203R-F 3.88 625 60 15 SCRN205R-F 4.75 765 60 20 SCRN206R-F B 4.25 875 60 30 SCRN208R-F C 5.25 1200 60 40 SCRN209R-F C 6.75 1500 60 50 SCRN210R-F D 5.75 1590 60 400 Vpk (Film and Paper Dielectric) 2 SCRN211R-F 2.63 790 60 3 SCRN212R-F 2.63 970 60 5 SCRN213R-F 3.88 1130 60 10 SCRN214R-F B 4.75 1930 60 15 SCRN215R-F C 4.75 2240 60 20 SCRN216R-F C 6.25 2800 60 30 SCRN217R-F D 6.75 3720 60 40 SCRN218R-F D 8.00 4330 60 50 SCRN219R-F E 6.25 6050 100 600 Vpk (Film and Paper Dielectric) 2 SCRN220R-F 2.63 815 60 3 SCRN221R-F 3.13 1200 60 5 SCRN222R-F 4.25 1420 60 10 SCRN224R-F C 4.25 2040 60 15 SCRN226R-F C 5.75 2800 60 20 SCRN227R-F D 5.75 3260 60 25 SCRN229R-F D 6.75 3720 60 30 SCRN230R-F D 8.00 4330 60 40 SCRN231R-F E 6.25 6060 100 50 SCRN232R-F E 7.25 6850 100 Conforms to EI 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 0.25 µf to 50.0 µf 200 Vpk to 2000 Vpk ±10% 40 ºC to +65 ºC +80 ºC RoHS Compliant Cap Catalog Case H Max V Max (µf) Part Number Code (In.) (65 ºC) (rms) 600 Vpk (Film Dielectric for Low-loss) 1 SCRN262R-F 2.38 2200 60 2 SCRN263R-F 2.38 2060 60 3 SCRN264R-F 3.88 3190 60 5 SCRN265R-F 4.25 4380 60 10 SCRN266R-F C 4.25 6060 60 1000 Vpk (Film and Paper Dielectric) 1 SCRN233R-F 2.13 790 60 2 SCRN234R-F 3.13 1070 60 3 SCRN235R-F 3.88 1455 60 5 SCRN236R-F B 4.25 1785 60 10 SCRN237R-F C 5.75 2570 60 15 SCRN238R-F D 5.75 3170 60 20 SCRN239R-F E 5.13 5200 100 1500 Vpk (Film and Paper Dielectric).5 SCRN240R-F 2.13 990 60 1 SCRN241R-F 2.88 1240 60 2 SCRN242R-F B 3.50 1890 60 3 SCRN243R-F C 4.25 2550 60 5 SCRN244R-F C 5.75 3250 60 10 SCRN245R-F E 5.13 6500 100 2000 Vpk (Film and Paper Dielectric).25 SCRN246R-F 2.13 990 60.33 SCRN257R-F 2.13 1000 60.5 SCRN247R-F 2.63 1180 60 1 SCRN248R-F 3.13 1300 60 2 SCRN249R-F B 4.25 2230 60 3 SCRN251R-F C 4.75 2800 60 5 SCRN253R-F D 5.75 4020 60 10 SCRN256R-F F 5.75 7600 100

Type SCR Commutating Capacitors Outline Drawings B B RoHS Compliant D F C 1/4-20 THD F 2 Plcs) 1/4-20 THD 2 Plcs) D C H H Figure 1 Figure 2 Case Dimensions Inches Code B C D F H Figure 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 Mounting Hardware See catalog page 5.000 for hardware

How to Choose a Commutating Capacitor 1. From circuit analysis or measurement, determine application values for these six parameters: Type SCR Commutating Capacitors the current from your Vrms using the equations in the following section. Nominal capacitance in µf Current pulse width in µs Current pulse period in µs Maximum peak voltage Continuous C voltage in Vrms Maximum volt-amps (V) 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. 3. Check that your application s rms current is no more than the capacitor s Max. mps RMS. You can calculate Using Volt-mpere Ratings 4. Check that your application s volt-amperes is not more than the capacitor s V capability. The V capability is the max V rating times the Volt-mpere multiplier from Figure 2 (Current Pulse Width) and that times the Volt-mpere Multiplier from Figure 3 (mbient Temperature). See the following section for more on using volt-ampere multipliers. If you need a greater V capability, repeat these steps for a higher peak voltage capacitor or consider connecting units in parallel to divide the V required. For up to peak voltage of 600 V, you may also consider polypropylene film dielectric units, Catalog Numbers SCRN262R through SCRN266R, with higher V capability. Pulse Wave pplications The capacitors maximum V 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 V rating. ΔV V peak Voltage The Max mps RMS rating is set by the capability of the capacitor terminals. Exceeding this limit can damage the terminals and cause capacitor failure. I peak Current Figure 1 Calculate the capacitor s actual V 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. For a sinewave voltage the current is: Irms = 2π fcvrmsx10-6 Polypropylene PP Film/Paper Paper 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. Figure 2 The peak current for the square wave voltage is: Ipeak = C V/0.64t Figure 3

Capacitor Hardware Type VR Vertical Mounting Clamp CDE VR mounting clamps may be used to mount any cylindrical capacitor with a 1 to 3 diameter that is to be mounted in a vertical position. Material is 1010 CRS, commercial grade #4 temper SI scale. Parts are finished with.0001 (nominal) zinc chromate plating. se for mounting CG types, PSU, SF and MPF types. Material thickness is.035 Catalog Part Number Unassembled ssembled Dimensions of Part to be Without Screw & Nut with B C Mounted Screw & Nut Included Screw & Nut 1" to 1-1/16 VR1B VR1 VR1 1" 1-7/16" 1-7/8*" 1-3/8" to 1-7/16 VR3B VR3 VR3 1-3/8" 1-25/32" 2-7/32" 1-1/2" to 1-9/16 VR4B VR4 VR4 1-1/2" 1-15/16" 2-11/32" 1-3/4" to 1-13/16 VR6B VR6 VR6 1-3/4" 2-1/4" 2-9/16" 2" to 2-1/16 VR8B VR8 VR8 2" 2-1/2" 2-13/16" 2-1/2" to 2-9/16 VR10B VR10 VR10 2-1/2" 3" 3-5/16" 3" to 3-1/8 VR12B VR12 VR12 3" 3-7/16" 3-13/16" Screw VRSCREW 9/16" long 6-32 thread NC-2 Nut VRNUT Standard hex nut to fit screws VR1, 3, & 4 B Mtg. C 2 Holes.1561 Dia..219.156.375.562.750 C ±0.01" 0.176" x 0.281" ±0.016 (3 places) VR6, 8, 10, & 12 120 ±3 (3 Places) Ø 0.201" ±0.005 75 B Mtg ±0.03" ±0.016 0.344" ±0.016 0.188" ±0.016 0.375" ±0.016 1.125" ±0.016 Type TH Horizontal Mounting Clip *.340 except TH25 is.590 * B.135 Dia.594 Hole 0.035" Dimensions Nominal Dia. Catalog of Part to be Part Number Mounted B TH13.375.250.47 TH15.500.250.62 TH17.625.312.72 TH19.750.312.89 TH21.875.312 1.00 TH23 1.000.312 1.06 TH25 1.375.312 1.50 0.500" ±0.016 0.750" ±0.016 These clips, though designed for capacitors, have varied applications to retain many cylindrical components. They are used extensively in the electrical and electronic industries to hold spindles, condensers, capacitors, tubes, rods and conduit. Clips have phosphate and oil finish. Material thickness TH13 thru TH17 is.016. TH19 thru TH25 is.020 CR15KT Motor Start Resistor Kit CR220KT Motor Run Resistor Kit 15K Ohm 2 watt bleeder resistors for C motor start applica- tions. Saves relay switch contacts and capacitor, particularly in capacitor start-run applications. 1/4 quick connect termi- nals eliminate need for soldering. CR15K: Pack of 10, 15K Ohm 2 watt bleeder resistor without quick connect terminals. 220K Ohm 1 watt bleeder resistors for C motor run appli- cations. Saves relay switch contacts and capacitor, particu- larly in capacitor start-run applications. 1/4 quick connect terminals eliminate need for soldering. CR220K: Pack of 10, 220K Ohm 1 watt bleeder resistor without quick connect terminals.

Capacitor Hardware Oval Capacitor Hardware Mounting Brackets #32107 Case Code Bracket 32107-1 C 32107-2 D 32107-3 6-32 Screw and Nut Insulating Terminal Boots UL 465 Listed (QG0RXQW)RRWHG %UDFNHWUHTXLUHG 6LGH0RXQW)RRWHG %UDFNHWUHTXLUHG +,QFKHV (QG0RXQW 6LGH0RXQW 44603 32108-2 Wrap round Bracket #30393 Case Code Bracket 30393-5 C 30393-9 D 30393-10 Round Capacitor Hardware 3 Footed Round 2 Footed Round Mounting Bracket Mounting Bracket Motor Start Mounting Hardware Case Code Brack et P VR 6B Case Code Bracket P 32107-6 Bracket End Cap S VR 8B S 32107-7 T VR10B T 32107-8 Wrap round Bracket Case Code Bracket P RB175 S RB200 T RB250 &DVH &DVH'LPHQVLRQV 'RZQ 8S 2SWLRQDO &RGH,QFKHV :LUH :LUH 0RXQWLQJ ' / &DS &DS %UDFNHW /RDER BOTH ENDCP ND BRCKET FOR MOUNTING CDE Cornell Dubilier 1605 E. Rodney French Blvd. New Bedford, M 02744 Ph: (508)996-8561 Fax: (508)996-3830 www.cde.com

Capacitor Hardware Screw-Terminal, Computer-Grade Capacitor, Mounting Hardware FIGURE 1 FIGURE 2 FIGURE 3 FIGURE 4 Clamp Dimensions Clamp Dimensions in Inches Number B C D 125364-01 1.375 2.125 2.500 1.281 125364-05 1.750 2.500 2.875 1.656 125364-02 2.000 2.750 3.125 1.906 125364-04 2.500 3.250 3.625 2.406 125364-03 3.000 3.750 4.125 2.906 125364-06 3.500 4.250 4.625 3.481 Bracket Dimensions Dimensions in Inches Figure Bracket B C D E F Number 1 115058-06* 1.375 1.813 30 2.313.750.563 1 115058-15* 1.750 2.188 30 2.625.750.560 2 115058-09* 2.000 1.250 75 1.438 1.125.750 3 115058-05 2.000 2.563 30 2.938 1.125.750 2 115058-14* 2.500 1.500 75 1.688 1.125.750 3 115058-10 2.500 3.000 30 3.438 1.125.750 2 115058-11* 3.000 1.750 75 1.938 1.125.750 3 115058-01 3.000 3.500 30 3.938 1.125.750 4 125309-01 3.500 4.488 60 2.224.984 Dimensions in millimeters B C D E F 34.93 46.04 30 58.74 19.05 14.30 44.45 55.56 30 66.68 19.05 14.22 50.80 31.75 75 36.51 28.58 19.05 50.80 65.09 30 76.41 28.58 19.05 63.50 38.10 75 42.86 28.58 19.05 63.50 76.20 30 87.31 28.58 19.05 76.20 44.45 75 49.21 28.58 19.05 76.20 88.90 30 100.01 28.58 19.05 90.00 114.00 60 4.70 25.00 Note: ll mounting brackets and clamps except Figure 4 are zinc plated. Figure 4 is black nylon. When mounting capacitors there is no need to wrap capacitors with protective wrapping before installing mounting clamp. * Stock bracket Nylon Nuts for Insulated Stud Mounting Nylon Nut Part Number For Stud (mm) Standoff S (mm) Nut W (mm) Nut Elevation T (mm) Hex Head J (mm) Min. Hole (mm) Mounting Max. Chassis Thickness (mm) Max. Tightening Torque in. lbs. M8S17W25 M8 17 25 14 17 17.5 5 25 M12S22W30 M12 22 30 16 19 22.5 5 75 M12S30W38 M12 30 38 16.5 19 30.5 5 75 CDM Cornell Dubilier 140 Technology Place Liberty, SC 29657 Phone: (864)843-2277 Fax: (864)843-3800 www.cde.com