1、AMSC N/A FSC 5960 MIL-PRF-1/806J 12 June 2012 SUPERSEDING MIL-PRF-1/806H 6 August 2004 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, THYRATRON TYPE 4C35A This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the electron
2、tube described herein shall consist of this document and the latest issue of MIL-PRF-1. DESCRIPTION: Triode, hydrogen. See figure 1. Mounting position: Any. Weight: 8 ounces (226.8 grams) nominal. ABSOLUTE RATINGS: ABSOLUTE RATINGS: See footnotes at end of table I. GENERAL: Qualification - Required.
3、 This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III. INCH-POUND Parameter: Ef epy epx Ebb Ecc egx egy Unit: V kv kv V dc V dc v v Maximum: 6.6 8.0 1/ 8.0 2/ - - 200 - Minimum: 5.7 - 5% epy 2,500 - - 3/ Test conditions: 6.3 8.0 - - 0 - 130 Parameter:
4、ib lb prr Pb dik dt tk TA Unit: A mA dc - - a s - C Maximum: 90 100 - 2.0 x 1091,000 - +90 Minimum: - - - - - 180 -50 Test conditions: - - 2,800 - - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/806J 2 TABLE I. Testing and inspection.
5、 Inspection Method MIL-STD-1311 Notes Conditions Symbol Limits Min Limits Max Units Conformance inspection, part 1 Heater current 3241 - lf 5.50 6.70 A ac Instantaneous starting 3267 5/ 6/ epy = 7.0 kv (min); tk = 180 sec; Ef = 6.60 V ac - - - - Operation (1) 3246 5/ 9/ epy = 10.0 kv (min); Ef = 5.7
6、0 V ac; t = 300 sec egy - 130 v DC anode voltage for conduction 3247 - Ef = 5.70 V ac Ebb - 1,500 V dc Pulse emission 3251 - ik = 90a (min); egk - 150 v (method A) prr = 60 10 percent; tp = 5.0 s 10 percent; tr = 0.5 s (max); specified time interval= 2.5 s Conformance inspection, part 2 High-frequen
7、cy vibration 1031 - No voltages applied - - - - Operation (2) 3246 - Operation (1); Ef = 6.60 V ac egy - 130 v Anode delay time 3256 - Operation (1); Ef = 6.3 V ac; t = 120 sec tad - 0.60 s Anode delay time drift 3256 7/ Anode delay time tad - 0.10 s Time jitter 3261 5/ epy = 3.0 kv (max) tj - 0.005
8、 s See footnotes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/806J 3 TABLE 1. Testing and inspection - Continued. Inspection Method MIL-STD-1311 Notes Conditions Symbol Limits Min Limits Max Units Conformance inspection,
9、 part 3 Life test - 5/ Group B; t = 96 hours “on” and 1 hour “off” (tube mounted horizontally); t = 500 hours - - - - Life test end points: - Operation (1) and operation (2) 3246 8/ egy - 140 v DC anode voltage for conduction 3247 - egy = 140 v Ebb - 2,000 V dc Anode delay time 3256 - egy = 140 v ta
10、d - 0.70 s Anode delay time drift 3256 - egy = 140 v tad - 0.10 s Time jitter 3261 - egy = 140 v tj - 0.01 s Variable-frequency vibration 1031 10/ No voltages applied - - - - Shock 1041 4/ 10/ Angle = 24 - - - - Electrical characteristics - 5/ 10/ epy = 10.0 kv (min); egy - 130 v measured before and
11、 t = 300 sec; Ebb - 1,500 V dc after shock epy = 3.0 kv (max) tj - 0.005 s Operation at elevated 3246 5/ 10/ TA = 90C; egy - 130 v ambient temperature Ef = 6.3 0.50 V ac; t = 5.0 hours 1/ For instantaneous starting applications where anode voltage is applied instantaneously, the maximum permissible
12、epy is 7.0 kv and shall be attained in not less than 0.04 second. 2/ In pulsed operation, the peak inverse voltage, exclusive of a spike of 0.05 s maximum duration, shall not exceed 2.5 kv during the first 25 s after the pulse. 3/ The driver pulse, measured at tube socket with thyratron grid disconn
13、ected, shall be: egy = 175 v minimum; time of rise = 0.5 s maximum; grid pulse duration = 2 s minimum. Impedance of drive circuit = 1,500 ohms maximum. 4/ Use clamp as specified on Drawing 243-JAN. 5/ The anode circuit constants shall be so chosen that at epy = 8.0 kv under resonant charging conditi
14、ons: dik/dt = 1,000 a/s minimum; ib = 90 a; tp = 0.5 s 10 percent; prr = 3,000. The grid pulse characteristics shall be tp = 2.0 s maximum; tr = 0.5 s minimum; driver impedance = 1,500 ohms minimum. 6/ The grid-drive voltage shall be applied within 10 seconds before application of anode voltage. The
15、 tube shall operate satisfactorily on pushbutton starting within three attempts when the anode voltage (epy) is applied to the tube under test (TUT) in such a manner as to rise from 0 to 7,000 v within 0.03 second (the filter in the rectifier shall be so designed that the epy reaches at least 3,500
16、v within 0.015 second). Any tube failing to start within three attempts shall be considered a failure. 7/ During the interval between 2 minutes and 7 minutes of the anode delay time test, the change in anode delay time (tad) relative to the tad value observed on the anode delay time test shall not e
17、xceed the specified value. 8/ Anode heating shall not be cause for rejection on operation (1) and operation (2) performed during life-test end point tests. 9/ This test shall be the first test performed at the conclusion of the holding period. 10/ This test shall be performed during the initial prod
18、uction and once each succeeding 12-calendar months in which there is production. An accept on zero defect sampling plan shall be used, with sample of three tubes with an acceptance number of zero. In the event of failure, the test will be made as a part of conformance inspection part 2, with an acce
19、ptance level of 6.5. The “12-calendar month” sampling plan shall be reinstated after three consecutive samples have been accepted. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/806J 4 NOTE: These dimensions shall be checked annually with
20、the following accept on zero defect sampling plan: n1 = 4 c1 = 0 n2 = 4 c2 = 0; In case of failure, the failing dimensions(s) shall become conformance inspection, part 2, for three successful consecutive submissions, at which time the test may revert to the conformance inspection, part 3 basis. FIGU
21、RE 1. Outline drawing of electron tube type 4C35A. Pin connections Pin No. Element 1 g 2 h, k 3 h 4 k cap a Ltr Dimensions Inches Millimeters Min Max Min Max Conformance inspection, part 2 A 6.250 6.875 158.75 174.63 B 2.380 2.562 60.45 65.07 Conformance inspection, part 3 (see note) C 4.000 5.000 1
22、01.60 127.00 D .400 - 10.16 - E 2.000 2.300 50.80 58.42 F Cap: C1-43 (EIA) G Base: A4-18 (EIA) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-1/806J 5 Referenced documents. In addition to MIL-PRF-1, this specification sheet sheet references
23、MIL-STD-1311, and Drawing 243-JAN. 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 Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and
24、 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. Custodians: Preparing activity: Army - CR DLA - CC Navy - EC Air Force - 85 DLA - CC (Project 5960-2012-014) Review
25、 activities: Army - AR Navy - 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 https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
