1、 MIL-PRF-81/4F SUPERSEDING 5 May 2011 MIL-PRF-81/4E 21 April 2006 PERFORMANCE SPECIFICATION SHEET CAPACITORS, VARIABLE, CERAMIC DIELECTRIC, STYLES CV31 AND CV32 This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the pro
2、duct described herein shall consist of this specification and MIL-PRF-81. Style CV31 FIGURE 1. Dimensions and configurations. AMSC N/A FSC 5910 .INCH POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81/4F 2 Inches mm Inches mm .003 .08 .
3、08 2.03 .01 .25 .100 2.54 .012 .30 .115 2.92 .015 .38 .130 3.30 .025 .64 .145 3.68 .030 .76 .150 3.81 .032 .81 .300 7.62 .040 1.02 .31 7.87 .046 1.17 .37 9.40 .05 1.27 .39 9.91 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise speci
4、fied, tolerances are .02 (0.51 mm) for two-place decimals and .010 (0.25 mm) for three-place decimals. Style CV32 FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81/4F 3 REQUIREMENTS: Dimen
5、sions and configuration: See figure 1. Capacitance value: See table I. DC rated voltage: See table I. Operating temperature range: -55C to +125C. Characteristics: See table I. TABLE I. Styles CV31 and CV32. Characteristics Type designation Capacitance (pF) DC rated Symbol Capacitance change from val
6、ue at +25C 1/ voltage (volts) At -55C At +125C Minimum Maximum Minimum percent Maximum percent Minimum percent Maximum percent CV3_A080 CV3_A180 CV3_B110 CV3_B250 CV3_C100 CV3_C250 CV3_D150 CV3_D350 CV3_E600 2.0 5.5 2.5 7.0 3.0 8.0 3.0 9.0 15.0 8.0 18.0 11.0 25.0 10.0 25.0 15.0 35.0 60.0 350 350 350
7、 350 350 350 200 200 200 A A B B C C D D E -4.5 -4.5 -1.0 -1.0 -1.0 -1.0 +1.5 +1.5 +3.0 +2.0 +2.0 +3.5 +3.5 +6.5 +6.5 +8.2 +8.2 +14.0 -2.5 -2.5 -2.5 -2.5 -4.0 -4.0 -5.0 -5.0 -10.0 +2.0 +2.0 -0.5 -0.5 -1.0 -1.0 -1.5 -1.5 -3.0 1/ The complete type designation will include an additional digit to indica
8、te style CV31 or CV32. Dielectric withstanding voltage: Method 301 of MIL-STD-202. A dc potential of 2.2 times rated voltage applied between terminals for 3 seconds 2 seconds. Temperature coefficient: Within the limits specified for the applicable characteristic. Capacitance drift: Within 0.75 perce
9、nt of initial step 1 measurement or 0.50 picofarad (pF), whichever is greater. Terminal strength: Pull test: Capacitor held by body and 4-pound-load applied to each terminal for at least 10 seconds. Torque: Not less than 1 ounce-inch nor more than 6 ounce-inches. Barometric pressure (reduced): Metho
10、d 105 of MIL-STD-202, condition D (100,000 feet). Test potential: 100 percent of dc rated voltage. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81/4F 4 Insulation resistance: Method 302 of MIL-STD-202, condition A, 100 volts dc applied: 10
11、,000 megohms, minimum. Capacitance: Method 305 of MIL-STD-202. DF: At 1 MHz 100 kHz, at maximum and minimum capacitance: Shall be not more than 0.2 percent. Fatigue: C: Shall not exceed 12 percent or 0.75 pF, whichever is greater. Torque: Not less than 1 ounce-inch nor more than 10 ounce-inches. Lif
12、e: Qualification test: 1,000 hours at +85C, 150 percent of rated volts dc with a peak alternating voltage of 50 percent of rated volts dc (100 hertz or less) superimposed. Insulation resistance: Initial requirement. Capacitance change: Shall not exceed 8 percent of initial value or 0.5 pF, whichever
13、 is greater. Group C life: Conditions and requirements are the same as that required for qualification. Shock (specified pulse): Method 213 of MIL-STD-202, condition I (100 gs). Vibration, high frequency: Method 204 of MIL-STD-202, condition B (15 gs). Capacitance change: Shall not exceed 2 percent
14、or 0.5 pF, whichever is greater. DF: Shall be not more than 0.2 percent. A dc potential of 2.2 times rated voltage applied between terminals for 3 seconds 2 seconds. Insulation resistance: 10,000 megohms, minimum. Moisture resistance: Method 106 of MIL-STD-202: Insulation resistance: 10,000 megohms,
15、 minimum. Capacitance change: Shall not exceed 5 percent of nominal value or 0.5 pF, whichever is greater. DF: Shall be not more than 0.5 percent. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-81/4F 5 CHANGES FROM PREVIOUS ISSUE: The margin
16、s of this specification sheet are marked with asterisks to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the r
17、equirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Reference documents. In addition to MIL-PRF-81, this document also references MIL-STD-202. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air For
18、ce - 85 (Project 5910-2011-025) DLA - CC Review activity: Air Force - 19 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
