1、AMSC N/A FSC 5950 INCH-POUND MIL-T-27/189B 9 November 2009 SUPERSEDING MIL-T-27/189A 7 May 1985 MILITARY SPECIFICATION SHEET TRANSFORMERS AND INDUCTORS (AUDIO, POWER AND HIGH POWER PULSE), INDUCTOR, POWER This specification is approved for use by all Depart- ments and Agencies of the Department of D
2、efense. The requirements for acquiring the transformer described herein shall consist of this specification sheet and MIL-PRF-27. NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for general information only. 3. Marking shall be on the side of the case. FIGURE 1. Dimensions and co
3、nfigurations. 1.050 MAX.1.050MAX.375.750 .010.112-40 INSERT.200 MIN. THREADDEPTH211.5 mH1.5 A dc30 Vrms, 16 kHzALTITUDE 70,000 FT.WORKING VOLTAGE: 225 V CIRCUIT DIAGRAM AND MARKINGAWG 20 DIA. .560MAX.500MIN.1 2.375 Inactive for new design after 25 August 1998 Inches mm .010 0.25 .112 2.84 .200 5.08
4、.375 9.52 .500 12.70 .560 14.22 .750 19.05 1.050 26.67 Provided by IHSNot for Resale-,-,-MIL-T-27/189B 2 REQUIREMENTS: (When numbers in parentheses, such as (1-2) are used, they indicate the winding and the extreme terminals of the winding) Electrical ratings: Inductance (1-2): 1.5 millihenries, min
5、imum. Voltage (1-2): 30 volts rms, 16 kHz. Current (1-2): 1.5 amperes, dc. DC resistance (1-2): 1.6 ohms, maximum. Working voltage: 225 volts, maximum to ground. Design and construction: Dimensions and configuration: See figure 1. Duty cycle: Continuous. Case: Encapsulated. Material: Epoxy. Terminal
6、s: Pin type, tinned copper. Height: .500 inch (12.70 mm), minimum. Diameter: 20 AWG (.32 inch (8.13 mm). Weight: 1.5 ounces, maximum. Operating temperature range: -55C to +130C. Altitude: 70,000 feet, maximum. Terminal strength: MIL-STD-202, method 211, test condition A, 2.0 pounds. Shock (specified
7、 pulse): MIL-STD-202, method 213, test condition A. Vibration (high frequency): MIL-STD-202, method 204. Dielectric withstanding voltage: MIL-STD-202, method 301. At sea level: 1,000 Vrms. At reduced barometric pressure: 300 Vrms. Electrical characteristics: Inductance: With 30 volts rms, 16 kHz, an
8、d 1.5 amperes dc applied to (1-2), the inductance shall be 1.5 millihenries, minimum. Temperature rise: 30C with 30 volts rms, 16 kHz, 1.5 amperes dc applied to (1-2) at an ambient temperature of 125C, maximum. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
9、 IHSMIL-T-27/189B 3 Marking location: See figure 1. Part or Identification Number (PIN): M27/189-01. Changes from previous issue. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the
10、Government assumes no liability whatsoever for any 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
11、. In addition to MIL-PRF-27, this document references the following: MIL-STD-202 Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 (Project 5950-2009-009) DLA - CC Review activities: Army - AR, CR4 Navy - AS, MC, OS, SH Air Force - 19, 99 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 http:/assist.daps.dla.mil. Provided by IHSNot for Resale-,-,-
