1、 MIL-PRF-1/262H 14 March 2013 SUPERSEDING MIL-PRF-1/262G 24 April 2007 PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, RECEIVING TYPE 6203 This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the electron tube described he
2、rein shall consist of this document and MIL-PRF-1. DESCRIPTION: Rectifier, miniature, full wave, high vacuum. Outline - - - 6-3 (EIA). Base - - - E9-1. Envelope - - - T6-1/2. Cathode - - - Coated unipotential. Base connections: Pin No. - - - 1 2 3 4 5 6 7 8 9 Element - - - 2a nc nc h h nc k nc 1a AB
3、SOLUTE RATINGS: Parameter: Ef Epp/a Ehk R1 C1 Io ib/a i surge/a TE Alt Unit: V V ac v Ohm F mA dc mA a C ft Maximum: 6.9 Note 1 100, - 450 - - - - - - Note 1 300 2.0 180 Note 1 Minimum: 5.7 - - - - - - - - - - - - - - - - - - - - - - - - - - - Test conditions: 6.3 400 (see note 2) - - - 5,800 8 - -
4、- - - - - - - - - - - - - _ GENERAL Qualification - Not required. This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III. AMSC N/A FSC 5960 INCH-POUND Inactive for new design after 7 March 1997 Provided by IHSNot for Resale-,-,-MIL-PRF-1/262H 2 TABLE I.
5、Requirements and tests. MIL-STD-1311 Method Requirement or test Notes Conditions Symbol Limits Unit Min Max 1231 1301 1353 1336 1201 Conformance inspection, part 1 Emission (1) Heater current Operation of rectifiers Heater-cathode leakage Short and discontinuity detection 3 4, 5 Eb = 50 V dc Ehk = E
6、o Ehk = - 450 V dc Is If Io Ihk - 165 830 70 - - - 970 - 75 - mA dc mA mA dc A dc - 1211 1002 1031 1231 1121 2126 1041 1031 - - - 1336 1353 1105 Conformance inspection, part 2 Insulation of electrodes Barometric pressure, reduced High-frequency vibration Emission (2) Base strain Envelope strain Shoc
7、k Vibration-fatigue Shock and vibration - fatigue test end points: Heater-cathode leakage Operation of rectifiers Permanence of marking 3 6 3 6 6 E(a-all) = -500 V dc Pressure = 55 5 mmHg; voltage = 980 V ac No voltages Ef = 5.5 V; Eb = 50 V dc 450 G; Epp/a = 0 R - - - - - - Is - - - - - - - - - - -
8、 - Ihk Io - - - 10 - - - - - - 150 - - - - - - - - - - - - - - - 65 - - - - - - - - - - - - - - - - - - - - - - - - - - - 150 - - - - - - Meg - - - - - - mA dc - - - - - - - - - - - - A dc mA dc - - - See notes at end of table. Provided by IHSNot for ResaleNo reproduction or networking permitted wit
9、hout license from IHSMIL-PRF-1/262H 3 TABLE I. Requirements and tests - Continued. MIL-STD-1311 Method Requirement or test Notes Conditions Symbol Limits Unit Min Max 1506 - - - 1336 1501 - - - 1353 1301 1336 - - - 1353 1301 1336 Conformance inspection, part 3 Heater-cycling life Heater-cycling life
10、-test end point: Heater-cathode leakage Intermittent life Intermittent life-test end points (500 hours): Change in operation of rectifiers of individual tubes Heater current Heater-cathode leakage Intermittent life-test end points (1,000 hours): Change in operation of rectifiers of individual tubes
11、Heater current Heater-cathode leakage 4, 7-8 Ef = 7.5 V; Ehk = +100 V dc; Epp/a = 0; 1 min “on“, 4 min “off“ Ehk = 450 V dc TA = room; TE = +180C (min); Ehk = Eo - - - Ihk - - - Io t If Ihk Io t If Ihk - - - - - - - - - - - - 830 - - - - - - 830 - - - - - - 150 - - - 8.5 984 75 11.5 993 75 - - - A d
12、c - - - % mA A dc % mA A dc NOTES: 1. To simplify the application of the maximum rating to circuit design, absolute ratings are presented in chart form as rating charts I, II, III, and IV. Operating points should be so selected that the boundary limits on rating charts I, II, III, and IV are not exc
13、eeded under the worst probable operating conditions with respect to supply-voltage variation, equipment- component variation, equipment-control adjustment, and environmental conditions. A brief description of each of the rating charts is given below. The values of ac supply voltage as presented refe
14、r to the unloaded supply voltages per anode. (a) Rating chart I. This chart presents the maximum ratings for ac anode supply voltage and dc output current. The boundary FAEDG defines the limits for capacitor-input filter operation, and the boundary FABCDG defines the limits for choke-input filter op
15、eration. (b) Rating chart II. This chart provides a convenient method for checking conformance with the maximum steady-state peak-anode current rating. Rating chart II applies to capacitor-input filter operation only. Provided by IHSNot for Resale-,-,-MIL-PRF-1/262H 4 TABLE I. Requirements and tests
16、 - Continued. (c) Rating chart III. This chart shows the minimum value of anode supply resistance (Rs) required to remain within the transient peak-anode current rating. The value of Rs should be such that it lies to the left of the line on the rating chart at the highest probable value of line volt
17、age. Rating chart III applies to capacitor-input filter operation only. (d) Rating chart IV. This chart presents the maximum ratings for anode-supply voltage and altitude. Rating chart IV refers to both capacitor-input filter and choke-input filter operation. 2. All values of Epp/a refer to the unlo
18、aded supply voltage. The ratings refer to rectifier operation with sinusoidal supply voltages within the frequency range of 25 to 1,000 Hz. 3. Test each section separately. 4. Adjust Zp/a in a full-wave circuit so that the TUT indicates Io = 75 mA dc. TUT has a tube drop of Etd = 22 V dc at Is = 70
19、mA dc per anode. 5. This test shall be performed at the conclusion of the holding period. 6. This test shall be conducted on the initial lot and thereafter on a lot approximately every 12 months. When one lot has passed, the 12-month rule shall apply. In the event of the lot failure, the lot shall b
20、e rejected and the succeeding lots shall be subjected to this test until a lot passes. 7. In a full-wave life-test circuit the values specified for R1 and C1 may be considered as approximate and shall be adjusted initially to give not less than Io = 75 mA dc and ib/a = 270 ma with a TUT. 8. Envelope
21、 temperature (TE) requirements, when measured in accordance with the temperature by conduction-band measurement (MIL-STD-1311, method 1226), will be satisfied if a TUT having bogey Ib (10 percent) under normal test conditions, is determined to operate at or above minimum specified temperature at any
22、 position in the life-test rack. Provided by IHSNot for Resale-,-,-MIL-PRF-1/262H 5 FIGURE 1. Rating chart I. Provided by IHSNot for Resale-,-,-MIL-PRF-1/262H 6 FIGURE 2. Rating chart II. Provided by IHSNot for Resale-,-,-MIL-PRF-1/262H 7 FIGURE 3. Rating chart III. Provided by IHSNot for ResaleNo r
23、eproduction or networking permitted without license from IHSMIL-PRF-1/262H 8 FIGURE 4. Rating chart IV. Provided by IHSNot for Resale-,-,-MIL-PRF-1/262H 9 Referenced documents. In addition to MIL-PRF-1, this document references MIL-STD-1311. The margins of this specification are marked with vertical
24、 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 contractors are cautioned to evaluate the requirements of this document based on the entire
25、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 (Project 5960-2013-004) DLA - CC Review activities: Army AR, AV, MI Navy - AS, CG, MC Air Force - 99 NOTE: The activities listed abo
26、ve 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.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
