1、AMSC N/A FSC 5945 INCH-POUND MIL-PRF-83726/21G 18 June 2013 SUPERSEDING MIL-R-83726/21F 23 June 2008 PERFORMANCE SPECIFICATION SHEET RELAY, SOLID-STATE, TIME DELAY (ON OPERATE), TYPE I, CLASS C, SPST, 250 MILLIAMPERES, VARIABLE TIME, 0.05 TO 500 SECONDS This specification is approved for use by all
2、Departments and Agencies of the Department of Defense. The requirements for acquiring the relay described herein shall consist of this specification and MIL-PRF-83726. FIGURE 1. Outline drawing and dimensions. INACTIVE FOR NEW DESIGN AFTER 15 NOVEMBER 2002. No superseding document. Provided by IHSNo
3、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/21G 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
4、 J .088 .098 2.24 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 s
5、pecified, tolerance 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. R1R2REXTProvided by IHSNot for ResaleNo rep
6、roduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/21G 3 REQUIREMENTS: OPERATING REQUIREMENTS: Timing action: Delay-on-operate. Time delay 1/: Adjustable (see table I) with external resistor according to the following formula: R ext = 100 k( (T/ Tm) - 1) where T = desired t
7、ime, Tm = minimum time, and (T/ Tm) 10. Timing accuracy 2/: +10 percent of the nominal value. Recycle time 3/: 10 milliseconds. Power interrupt: The accuracy will not be affected by power interruptions up to 1 millisecond spaced at least 10 milliseconds apart. _ 1/ External resistor in accordance wi
8、th MIL-PRF-55182, RNC60HXXXXFS or equal. 2/ The accuracy requirement applies for any combination of operating temperature and voltage. 3/ Recycle time is defined 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
9、specified timing tolerance. (Units can be recycled during timing or after time-out.) TABLE I. Available time delays. 1/ Dash number Time delay (seconds) Printed circuit type terminals Flange mounting 10% -001 -002 -003 -004 -005 -006 -007 -008 0.05 0.5 0.5 5 5 50 50 500 1/ CAUTION: Relays supplied t
10、o this specification sheet are susceptible to damage from electrostatic discharge under class I devices as defined by MIL-STD-1686 (see ESDS requirements herein). INPUT REQUIREMENTS: Input voltage: 28 V dc nominal; range 18 V dc to 32 V dc. Duty rating: Continuous. Current drain: 5 milliamperes maxi
11、mum plus load at 25C. Polarity protection: The timer shall be inoperative during, and undamaged by, reversal of the polarity of the operating voltage. OUTPUT REQUIREMENTS: Configuration: SPST; switch closure to +28 V dc. Rating: 250 milliamperes maximum. Suppression: Inductive suppression provided f
12、or output protection. Voltage drop: 2 V dc maximum. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/21G 4 Leakage current: 1.0 microampere maximum at 28 V dc and 25C; 10 microamperes maximum at 28 V dc and 125C. Endurance: 1,000,000 cyc
13、les minimum for test. Qualification: 2,000 hours or 1,000,000 cycles, whichever is less. Group B: 1,000 hours or 1,000,000 cycles, whichever is less. ELECTRICAL REQUIREMENTS: Transients: In accordance with MIL-STD-704 for 28 volts dc system (figure 11). Radio noise: MIL-STD-461, class 1D. Motor load
14、: 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 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 t
15、emperature (operating or nonoperating): -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): 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 milli
16、second. Acceleration: 100 gs. Seal: MIL-STD-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: Marki
17、ng shall be in accordance with MIL-PRF-83726. In addition, relays shall be marked with the ESDS identifier as specified in MIL-STD-1285. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83726/21G 5 Part or Identifying Number (PIN): The PIN con
18、sists of the prefix M83726/21- and a three digit dash number. 4/ 5/ Example: M83726/21-001 Suspension of inspections: Group B and group C inspections may be suspended at the discretion of the qualifying activity. _ 4/ Relays numbered prior to the date of this specification shall be considered interc
19、hangeable (store and issue). 5/ For dash numbers refer to table I. 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
20、whatsoever 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, t
21、his document references the following: MIL-STD-202 MIL-STD-883 MIL-STD-461 MIL-STD-1285 MIL-STD-704 MIL-PRF-55182 MIL-STD-1686 Custodians: Preparing activity: Air Force - 85 DLA - CC DLA CC Review activity: (Project 5945-2013-031) Air Force - 19 NOTE: The activities listed above were interested in t
22、his document as of the date of this document. Since organizations and responsibilities can change, please 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-,-,-
