1、AMSC N/A FSC 5960 INCH-POUND MIL-PRF-1/757K 17 October 2008 SUPERSEDING MIL-E-1/757J 21 November 1973 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, THYRATRON TYPE 5643 This specification is approved for use by all Depart- ments and Agencies of the Department of Defense The requirements for acquirin
2、g the electron tube described herein shall consist of this document and MIL-PRF-1. DESCRIPTION: Tetrode Outline - 3-1 Base - B8-10 Envelope - T3 Mounting position - Any Weight - 0.12 ounce nominal Base connections: Pin No. - 1 2 3 4 5 6 7 8 Element - a g2 h g2 k h g1 g2 ABSOLUTE RATINGS: Parameter:
3、Ef epx epy Ec1 Ec2 Ehk tk ib Ik TA Alt Unit: V V V Vdc Vdc Vdc sec ma mAdc C ft Maximum: 6.6 500 500 - - +25 - 100 16 +100 - Minimum: 6.0 - - -200 -100 -100 10 - - -55 See Note 1 TEST CONDITIONS: 6.3 - - - 0 0 - - - - - GENERAL: Qualification Not Required Reliable tubes Inactive for new design after
4、 7 March 1997. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/757K 2TABLE I. Testing and inspection. Limits Method MIL-STD-1311 Requirement or test Conditions Acceptance level 8/ Symbol Mim Lay Bogey Ual Max AldUnit Appen- dix D 30(a), 40
5、Appen- dix D 30(b) 1201 3241 3241 1336 3201 3201 3201 Conformance inspection, part 1 (See note 8) Visual and mechan- ical inspection criteria Dimensions Short and discon- tinuity detection (for reliable tubes) Heater current Heater current Heater-cathode leakage Critical grid voltage for conduction
6、(1) Critical grid voltage for conduction (2) Critical anode voltage for conduction Outline 3-1; dimensions A thru E Ehk=+25 Vdc Ehk=-100 Vdc Epp=350 Vac; Rg1=10 Meg; Rp=10,000 ohmsSee note 2 Epp=350 Vac; Rg1=10 Meg; Rp=10,000 ohmsVary Ebb; Ecc1=0; Rg1=0.1 Meg; Rp=10,000 ohms- 1.0 0.4 - 0.65 0.65 0.6
7、5 0.65 0.65 - - - If If +Ihk -Ihk Ecc1 Ecc1 Ebb - - - - 140 - - -2.0 - - - - - 144- - - - - - - - - 150 - - - - - - - - - 156 - - - - - - - - - - 160 10 10 -4.0 -6.0 26 - - - 12 - - - - - - - - - mA mA Adc Adc Vdc Vdc Vdc 1116 2126 1041 1231 Conformance inspection, part 2 Lead fatigue Glass strain S
8、hock Pulse emission See note 3 450G e=1809 v; prr=1205; Ra=150 ohms; Rp=100 ohms; Zm=75.0 ohms; t=3(max); calibration resistor = 50 ohms 2.5 6.5 - 2.5 - - - etd - - - - - - - - - - - - - - - - - - - 76 - - - - arcs - - v Provided by IHSNot for ResaleNo reproduction or networking permitted without li
9、cense from IHS-,-,-MIL-PRF-1/757K 3TABLE I. Testing and inspection Continued Limits Method MIL-STD-1311 Requirement or test Conditions Acceptance level8/ SymbolMin Lal Bogey Ual Max Ald Unit - 1336 1261 Conformance inspection, part 2 continued Post-shock end points: Heater-cathode leakage Anode volt
10、age Ehk=+25 Vdc Ehk=-100 Vdc - - Ihk Ihk Ebb - - - - - - - - - - - - 20 20 26 - - - AdcAdcVdc Limits Method MIL-STD-1311 Requirement or test Conditions Acceptance level 8/ Symbol Min Max Unit 1506 1521 - 1201 1501 1521 Conformance inspection, part 3 Heater-cycling life test Survival-rate life test S
11、urvival-rate life test end point: Short and dis- continuity detection (inoperatives) Intermittent life- test operation Survival-rate life test Ef=7.0 V; 1 minute “on” 4 minutes “off”; Eb=Ec1=Ec2=0 Ehk=18 Vac Ib=16 mAdc; ib=100 ma; Rg1=50,000 ohms(min); Epp=350 Vac; Ehk=-100 Vdc; +25Vdc; Rp=5,000 ohm
12、s (approximately) TA=room See notes 4 TA=100C (min) See notes 4 variable frequency See note 7 Ehk=+25 Vdc Ehk=-100 Vdc - - - - - - - 10.0 6.5 - - - If Eccl Ebb etd Ihk Ihk - - - Ihk Ihk Ebb - 138 -0.8 - - - - - - - - - 164 -5.0 70 100 20 20 - - - 20 20 26 - mA Vdc Vdc v Adc Adc - - - Adc Adc Vdc NOT
13、ES: 1. See “Reduced pressure (altitude) rating” and altitude, maximum peak voltage in the basic document. 2. This test is to be the first test performed at the conclusion of the holding period. 3. Grid current or the appearance of ionized gas shall not be considered as indications of air leakage. 4.
14、 Adjust phase of grid voltage to provide start of conduction at the peak of the anode voltage. 5. Cycling of heater-cathode voltage shall be 30-seconds positive and 30-seconds negative. 6. Post-shock and sweep-frequency vibration-test end points, as specified herein, shall be the post- variable-freq
15、uency vibration end points. 7. This test shall be conducted on the initial lot and thereafter on a lot approximately every six months. When one lot has passed, the 6-month rule shall apply. In the event of a lot failure, the lot shall be rejected and the succeeding lots subjected to this test until
16、a lot passes 8. This specification sheet utilizes an accept on zero defect sampling plan consistent with MIL-PRF-1, table III. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/757K 5Referenced documents. In addition to MIL-PRF-1, this docume
17、nt references MIL-STD-1311. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians: Preparing activity: Army CR DLA - CC Navy EC Air Force 85 (Project 5960-2008-065) DLA CC Review activities: Army AR, MI Na
18、vy AS, CG, MC, OS, SH Air Force 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 ResaleNo reproduction or networking permitted without license from IHS-,-,-
