1、AMSC N/A FSC 5945 INCH-POUND MIL-PRF-83726/20F 10 June 2013 SUPERSEDING MIL-PRF-83726/20E 23 June 2008 PERFORMANCE SPECIFICATION SHEET RELAY, SOLID-STATE, TIME DELAY (ON OPERATE), TYPE I, CLASS C, SPST, 250 MILLIAMPERES, FIXED TIME, 0.05 TO 500 SECONDS This specification is approved for use by all D
2、epartments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-83726. FIGURE 1. Outline drawing and dimensions. Inactive For New Design After 15 November 2002. Provided by IHSNot for ResaleNo rep
3、roduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/20F 2 Ltr Inches mm Min Max Min Max A - .810 - 20.57 B - .310 - 7.87 C .182 .192 4.62 4.88 D .028 DIA .033 DIA 0.71 DIA 0.84 DIA E .010 .020 0.25 0.51 F - .190 - 4.83 G .020 .030 0.51 0.76 H - .410 - 10.41 J .088 .098 2.24
4、2.49 K .195 TYP .205 TYP 4.95 TYP 5.21 TYP L .095 REF .105 REF 2.41 REF 2.67 REF M .118 DIA .122 DIA 3.00 DIA 3.10 DIA N - 1.280 - 32.51 P 1.057 1.067 26.85 27.10 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Unless otherwise specified, toleranc
5、e is .010 (0.25 mm) for three place decimals and .03 (0.76 mm) for two place decimals. 4. Spare terminals are connected internally. Do not use for external tie points or for terminals. FIGURE 1. Outline drawing and dimensions Continued. Provided by IHSNot for ResaleNo reproduction or networking perm
6、itted without license from IHS-,-,-MIL-PRF-83726/20F 3 FIGURE 2. Transient surge dc voltage step function loci limits for category B equipment. REQUIREMENTS: OPERATING REQUIREMENTS: Timing action: Delay-on-operate. Time delay: Fixed, .05 seconds to 500 seconds. Timing accuracy 1/: +10 percent of the
7、 nominal value. Recycle time 2/: 10 milliseconds. Power interrupt: The accuracy will not be affected by power interruptions up to 1 millisecond spaced at least 10 milliseconds apart. _ 1/ The accuracy requirement applies for any combination of operating temperature and voltage. 2/ Recycle time is de
8、fined as the maximum time that power must be removed from the input terminals to assure that the next timing cycle will be completed within the specified timing tolerance. (Units can be recycled during timing or after time-out.) Provided by IHSNot for ResaleNo reproduction or networking permitted wi
9、thout license from IHS-,-,-MIL-PRF-83726/20F 4 INPUT REQUIREMENTS: Input voltage: 28 V dc nominal; range 18 V dc to 32 V dc. Duty rating: Continuous. Current drain: 5 milliamperes maximum plus load at 25C. Polarity protection: The timer shall be inoperative during, and undamaged by, reversal of the
10、polarity of the operating voltage. OUTPUT REQUIREMENTS: Configuration: SPST; switch closure to +28 V dc. Rating: 250 milliamperes maximum. Suppression: Inductive suppression provided for output protection. Voltage drop: 2 V dc maximum. Leakage current: 1.0 microampere maximum at 28 V dc and 25C; 10
11、microamperes maximum at 28 V dc and 125C. Endurance: 1,000,000 cycles minimum for test. Qualification: 2,000 hours or 1,000,000 cycles, whichever is less. Group B: 1,000 hours. ELECTRICAL REQUIREMENTS: Transients: In accordance with MIL-STD-704 and figure 2 (limit 1, duty cycle 2 percent for categor
12、y B equipment). Spike: Self-generated: None. Susceptibility: +80 V maximum; -600 V maximum. Radio noise: MIL-STD-461, class 1D. Motor load: Not applicable. Insulation resistance: 1,000 megohms at 500 V dc at sea level, and 100 V dc at 80,000 feet between each pin and case. Dielectric strength: 1,000
13、 V rms at 60 Hz at sea level, and 350 V rms at 80,000 feet between case and pins connected together. ENVIRONMENTAL REQUIREMENTS: Ambient temperature (operating or non-operating): -55C to +125C. Vibration (sinusoidal): 10 Hz to 100 Hz at 0.06 inch DA; 100 Hz to 3,000 Hz at 30 gs. Vibration (random):
14、MIL-STD-202, method 214, condition I, letter J, duration of 30 minutes. Maximum altitude rating: 80,000 feet. Shock: 1,100 gs for 0.5 millisecond. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/20F 5 Acceleration: 100 gs. Seal: MIL-STD
15、-883, method 1014, condition B and condition C. Moisture resistance: MIL-STD-202, method 106. PHYSICAL REQUIREMENTS: Dimensions and configurations: See figure 1. Terminations: See figure 1. Terminal strength: 3 pounds pull. Weight: 0.5 ounce. Marking: Marking shall be in accordance with MIL-PRF-8372
16、6. In addition, relays shall be marked with the ESDS identifier as specified in MIL-STD-1285. Part or Identifying Number (PIN): The PIN shall be as follows: Consists of the prefix M83726/20-, a four digit dash number (time delay expressed in milliseconds), and a suffix letter (W for printed circuit
17、mounting; A for flange mounting): M 83726/20- 1001 W Military designation Specification sheet number The first three digits are significant; the fourth is the number of zeros to follow the first three digits. The time is expressed in milliseconds and converted to seconds. (See examples.) Suffix lett
18、er. (Any relay numbered prior to the date of this specification shall be considered interchangeable with same mounting type, store and issue.) Examples: M83726/20-1001W 1 second time delay, printed circuit mounting M83726/20-9002A 90 second time delay, flange mounting NOTE: Time delay relays within
19、the 0.05 second to 500 second delay range are available. CHANGES FROM PREVIOUS ISSUE: The margins of this specification are marked with a vertical line to indicate where changes from the previous issues were made. This was done as a convenience only and the Government assumes no liability whatsoever
20、 for an inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Referenced documents. In addition to MIL-PRF-83726, this docume
21、nt references the following: MIL-STD-202 MIL-STD-883 MIL-STD-461 MIL-STD-1285 MIL-STD-704 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/20F 6 Custodian: Preparing activity: Air Force - 85 DLA - CC DLA - CC Review activity: (Project 59
22、45-2013-030) 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.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
