1、 INCH-POUND MIL-PRF-1/195D 16 June 2003 SUPERSEDING MIL-PRF-1/195C 12 June 1998 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBES, RECEIVING TYPE OB3 The requirement for acquiring the electron tube described herein shall consist of this document and the latest issue of MIL-PRF-1. This specification is
2、approved for use by all Depart- ments and Agencies of the Department of Defense. DESCRIPTION: Voltage regulator Outline 12 - 7 (EIA) Base B6-3 Envelope ST12 Cathode Glow discharge Base connections: Pin No. 1 2 3 5 7 8 Element nc k 7 (see note 1) a 3 (see note 1) nc ABSOLUTE-MAXIMUM RATINGS: Paramete
3、r: Ebb Starting voltage Operating voltage Operating current Alt Unit: V dc V dc V dc mA dc ft Maximum: - - - - - - 90 (approx) 30 10,000 Minimum: - - - 130 - - - 5 - - - Test conditions: 150 - - - - - - (see note 2) - - - _ GENERAL: Qualification - OB3 - Not required AMSC N/A Page 1 of 3 FSC 5960 DI
4、STRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2MIL-PRF-1/195D Table I. Testing and inspection. Inspection Method Conditions Acceptance Level (see note 6) Symbol Limits
5、Min Limits Max Unit Conformance inspection, part 1 Ionization voltage (1) Voltage drop (1) Voltage drop (2) Regulation Noise and oscillation (oscillation test) Noise and oscillation (noise) Short and discontinuity detection 3347 3337 3337 3335 3278 3278 1201 Rp/Ib = 5 to 30 mA dc (see notes 3 and 4)
6、 Rp/Ib = 5 mA dc Rp/Ib = 30 mA dc Etd (2) - Etd (1) Esig = 100 mV ac; RL = 500; Ebb/Ib = 5 to 30 mA dc Ebb/Ib = 30 mA dc; RL = 500 0.65 0.65 0.65 0.65 0.65 0.65 0.4 Ez Etd (1) Etd (2) Reg - - - EB - - - - - - 80 - - - - - - - - - - - - - - - 125 - - - 100 6.0 - - - 15.0 - - - V dc V dc V dc V dc - -
7、 - mV ac - - - Conformance inspection, part 2 Low-frequency vibration Leakage current Secureness of base and base insert Base pin solder depth Permanence of marking 1031 3305 1101 1111 1105 No voltage Eb = 50 V dc (See note 5) 6.5 6.5 6.5 6.5 - - - - - - LIb - - - - - - - - - - - - - - - - - - - - -
8、 - - - - - - 10.0 - - - - - - - - - - - - A dc - - - - - - - - - Conformance inspection, part 3 Life-test provisions Life-test end points (500 hours) - - - - - - Group A; Rp/Ib = 30 mA dc Ionization voltage Voltage drop (1) Voltage drop (2) Regulation - - - - - - - - - - - - - - - - - - Ez Etd (1) E
9、td (2) Reg - - - - - - 77 - - - - - - - - - 130 - - - 103 9.0 - - - V dc V dc V dc V dc NOTES: 1. Pins 3 and 7 tied internally. 2. Fixed resistor may be used and Ebb varied to give desired current. 3. Test to be conducted with the tube exposed to light intensity of 5 to 50 footcandles. 4. This test
10、to be performed at the conclusion of the holding period. 5. This test applies to flexible leads as well as for rigid leads. 6. This specification sheet uses accept on zero defect sampling plan, in accordance with MIL-PRF-1, table III. Provided by IHSNot for ResaleNo reproduction or networking permit
11、ted without license from IHS-,-,-3MIL-PRF-1/195D Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 11 (Project 5960-3672) DLA - CC Review activities: Navy - AS, CG, MC, OS Air Force - 19, 99 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
