ECA-401-1973-R1990.pdf

i eia 401 73 = 3234600 o067770 t = eia standard i paper, paper/ film, film dielectric capacitors for pow er sem icond ucto ri rs-401 i applications engineering department electronic industries association copyright electronic components, assemblies oil impregnated; extended foil electrode capacitors, hermetically sealed in metal cases, for general purpose application in power semiconductor circuits. these capacitors are intended for such uses as scr commutating, snubbers, harmonic filters, emi/rfi suppression, in motor speed controls, static power supplies, frequency changers, and similar applications. 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2. definitions effective voltage is the voltage used to determine the effective volt-amperes. this voltage is the rms value calculated only during those portions of the total period that the voltage is changing. see appendix 6, page 23. 6o-hz rms voltage reference is the nominal continuous 60-hz sinewave voltage that may be applied between the capacitor terminals. this rating is primarily intended as a reference value for capacitor design and testing, but excluding temperature-rise testing. peak voltage rating is the maximum voltage change (plus or minus) from zero reference applied between the capacitor terminals. zero reference is the condition where there is no potential across the terminals of the capacitor. see appendix 6, page 23. peak-peak voltage is the maximum total change in voltage applied between the capacitor ter- minals during one repetitive cycle. see appendix 6, page 23. rms current is the root-mean-square or effective current and is the value used to determine the effective volt-amperes. see appendix 6, page 23. peak current is the maximum amplitude of current which occurs repetitively in charging or discharging a capacitor. see appendix 6, page 23. current puise width is the time of current flow in microseconds during the charge or discharge of capacitors. see appendix 6, page 23. volt-amperes is the product of the effective voltage and effective current applied to a capacitor. this value provides a means of calculating the watts loss and temperature rise of a capacitor. see appendix 6, page 23. rise time is the time in microseconds required to charge a.capacitor from 10% to 90% of the maximum change in voltage (a v) applied between the capacitor terminals during one repetitive cycle. see appendix 6, page 24. case temperature rating is the maximum allowable hot spot temperature developed at any point on the case surface. (see paragraph 20.4.) copyright electronic components, assemblies the first two digits represents significant figures and the last digit specifies the number of zeros to follow. example: 106 1 o, o o o, o o o p f or 10pf finish shall be identified by a single letter as shown below: code letter type of finish p underwriters laboratories recognized paint r non-u.l. paint terminals shall be identified by a two digit code as shown below: code terminal type 06 pillar insulator 10-32 screw 07 pillar insulator 12-24 screw 08 o9 10 pillar insulator 3/8-16 screw pillar insulator 1/4-20 screw - pillar insulatar 5/ 16-1 8 screw l - _- copyright electronic components, assemblies . . . . . . . . . . . . . . . paragraph 9 capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . paragraph 10 dissipation factor . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . paragraph 11 seal paragraph12 *heat rise. . . . . . . . . . . . . . . . . . . . . . . . . . . . i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . paragraph 13 group 2 vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i . . . . . . . . . . . . . . . . paragraph 14 salt spray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . paragraph 15 group 3 terminalstrength . . paragraph 16 humidity . paragraph17 group 4- capacitance change with temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . paragraph 18 high temperature life test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . paragraph 19 *heat rise is design proof test to be conducted by equipment manufacturer. copyright electronic components, assemblies : + o i schematic circuit fig. 2 copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- e i a 401 73 w 3234b00 0067793 7 1 rs-401 page 20 2.1 6” 1.31” 2.06” 54.8mm 33.4mm 52.4mm case type a b c d e f 2 appendix 4 case types (continued) 4.56 2.84” 4.47” 115.8mm 72.3mm 113.5mm note 3 fig. i a 2 4.56” 3.75” 4.49” 3.69” 115.8mm 95.3mm 114.1 93.7mm 1 2.69” 1.56” 2.58” 1 68.3mm 1 39.7mm i 65.6mm peak voltage rating dimension d minimum creepage 1 2.91” 1.91” 2.81” 1 73.8mm 1 48.4mm 1 71.4mm 200 300 400 600 1 o00 1500 2000 soo” .500” .soo” soo” .soo” .700” .700” 12.7mm 12.7mm 12.7mm 12.7mm 12.7mm 17.8mm 17.8mm .250” .250” .250” .375” .550” .700” .700” 6.4mm 6.4mm 6.4mm 9.4mm 14.mm 17.8mm 17.8mm note 3 b 1.21” 30.7mm 1.47” 37.3mm 1.81” 46.0mm 1.88” 92.9mm 55.0mm 90.5mm 47.6mm 1 1 3.66” 1 1.97” 1 2.75” 69.9mm c .813” 21.11mm 1.250” 31.75mm 1.375” 3493mm 2.00037 50.80mm 2.000” 5 o. 80mm 2.000” 50.80mm note 1 : dimension d may include extra nut and/or metal spacers as long as creepage distance is maintained. note 2: creepage from live parts to case. note 3: a and b dimensions are directly below seam. note 4: non-magnetic cases are available in several case types for special applications. check with capacitor producer where this is an essential requirement. copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- eia 401 73 m 3234600 0067792 9 m appendix 4 preferred bracket styles strap a spade bolt footed rs-401 page 21 1 case type style w strap bracket style s spade bolt bracket style f footed bracket (note: other integral and attachable brackets may be obtained from producers of capacitors.) d e e d e inches i mm inches i mm inches 1 mm inches i mm inches i mm b racket mou nti ng con f i gu rat1 ons .19“ dia holes /- 4.8mm a b 19.8mm 19.8mm e :“,“,mm 4 i 1 2.94 74.6 2.56 65.1 2.41 61.1 3.09 78.5 2.66 67.5 3.56 90.4 3.06 77.7 2.94 74.6 3.63 92.2 3.19 81.0 dia. e f 4 k .78“max. 19.86mm -.125“ +i .58mm 5.73 145.5 5.11 129.7 4.81 122.0 5.63 143.0 5.19 131.5 - - - - - - . 4.00 114.1 4.97 126.3 4.38 111.0 u - e ? . 0 3 1 “ 4 f.79mm j je t 1 o132 spade bolt . 1 .oo“ 25.4mm -s d +.062“+ f1.58mm -3.18mm “min. bkt. case style e 1.38“ - 35.05mm bracket mounting dimensions case style f 3.75“ - 95.25mm i c i 3.81 i 96.8 1 3.31 i 84.1 i 3.16 i 80.1 i 3.84 i 97.6 i 3.41 i 86.5 i i d i 4.57 i 116.0 i 4.06 1103.0 i 3.91 i 99.2 1 4.59 1116.5 i 4.16 1105.5 i copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- e i a 401 73 m 323i.1600 0067793 o m rs-401 page 22 volts o appendix 5 application information time capacitors forscr commutation applications design and application data sheet to assist in obtaining proper capacitor design, it is particularly important that the circuit design engineer sketch out in detail a picture of voltage and current vs time. this should be done by using the space provided below and show- ing specific values of voltage, current, and time over a complete cycle. primary information: 1. capacitance required: tolerance (if less than +o%) 2. peak-to-peak voltage effective voltage: 3. peak current: rms current: 4. repetition rate: duty cycle: 5. ambient temperature: max min 6. capacitor discharge time: (hertz) (time on-time off) 7. show sketch of voltage and current wave shape vs time. (fill in below) +l -i secondary tnformation: a. 9. 1 o. 11. 12. 13. 14. desired operating life: (total cycles) (total hours) physical size limitations: mounting requirements: applicable specifications (if any): unusual atmospheric conditions: (dust, chemicals, humidity, corrosion, etc.) other special requirement: (high altitude, shock, vibration, etc.) what kind of cooling available: (fins, heat sink, forced air, etc.) copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- eia 401 73 m 3234600 o067794 2 m 0 - 0 - - b o o appendix 6 waveforms and legend un id i r ectional i j 0 - 0- -m rs-401 page 23 7 i i mtt- i i bidirectional vpk-pk - maximum voltage change, positive plus negative. between capacitor terminals during one repetitive cycle. vpk av ipk tl t2 t va veffective - is calculated during time tl and t2 over a period t using av. leffective - maximum voltage change from zero reference between capacitor terminals. - total change of voltage between capacitor terminals equal to vpk-pk for a bidirectional waveform and to vpk for a unidirectional waveform - maximum amplitude of current. - current flow time (rise time of voltage) in microseconds. - current flow time (fall time of voltage) in microseconds. - time of one complete voltage waveform in microseconds. - volt-amperes (veffective x !effective) - (rms) is calculated during time tl and-t2 over period t. copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- e i a 401 73 3234600 0067795 4 m i o appendix 6 un id t r ection a l i i i i i i i fi- +io% i1 1 0- i i i 1 i i i i rise time in microseconds ti bi d i r ecti on a l 4 k rise time in microseconds tt voltage waveforms showing rise times rise time is from +lo% to t90% of av. rise time is used by the capacitor designer to establish the frequency, fo, at which power losses are calculated. . * copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- e i a 401 73 = 3234600 00b779b b e . requirement index reference page 6 applicable documents. . para. 4 . application data sheet appendix 5 . 22 para. 20.7 . 12 application notes para. 20 . 11,12 capacitance change. . para. 18 . 10 capacitance ratings. . appendix 2 17 8 capacitance test para. 1 o 6 3 20.4 . 11, 12 capacitance tolerance para. 3.8 . case temperature . para. 2.1 o . casetypes . 4 appendix 4 . 19,20 para. 3.2 dielectric test para. 9 . 8 dimensions para. 3.2 . 4 appendix 4 . 19,20 appendix 2 . 17 o 8 dissipation factor para. 11 . 4 e.i.a. designation para. 3.0 . finish para. 3.6 . 5 groundlug para. 3.9 . 6 appendix3 . 18 heat rise. . para. 13.0 . 9 i humidity para. 17 . 10 life test para. 19 . 10, 11 marking para. 7 . 8 mechanicalinspection para. 7 . 8 mounting. . para. 20.3 . 11 para. 20.6 . 12 8 appendix 4 . 21 rs401 page 25 copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- e i a 401 73 m 3234600 0067797 m ,. rs-401 page 26 requirement reference page rated life para. 20.5. . 12 rating tabulations . appendix 2 17 3 risetime para. 2.9 appendix 6 23,24 salt spray 9 . para. 15.0 . scope of standard . para. 1.0 . 3 9 seal test . para. 12.0 . standard test conditions para. 5.0 . 6 temperature ratings para. 3.4 . 5 para. 20.1.2 11 appendix 1 15, 16 terminals appendix3 18 para. 3.7 5 appendix 4 13 terminal strength .para. 16.0 9 . test program . para. 6.0 . table1 . 6 7 transients & surges . para. 20.2 . 11 vibration . para. 14.0 . 9 voltagederathg . appendix 1 14 voltage ratings . para. 3.3 . 4 appendix 2 17 volt-ampere loading j para. 13.0 . . para. 2.8 . 9 3 waveforms . appendix6 24 para. 2.0 3 copyright electronic components, assemblies & materials association provided by ihs under license with eca licensee=ihs employees/1111111001, user=wing, bernie not for resale, 03/29/2007 21:41:57 mdtno reproduction or networking permitted without license from ihs -,-,- e i a 40% 73 m 3234b00 00b7798 t related eia standards in addition to this standard, the following eia standards on capacitors are available: rs- 1 5 3-b rs- 1 64-a rs-165-a rs-17 1 rs-198-b rs-2 1 8-a rs-228-i3 rs-33 5 rs-36 1 rs-3 76 rs-376-1 rs-377 rs-392 rs-3 9 5 rs-3 98 tr- 109 molded and dipped mica capacitors (wire lead styles) $5.25 fixed paper and fixed paper polyester film dielectric