1、 MIL-E-1/175K 17 September 2013 SUPERSEDING MIL-E-1/175J 28 February 2003 MILITARY SPECIFICATION SHEET ELECTRON TUBE, RECEIVING TYPE 5902 Inactive for new design after 7 March 1997. This specification is approved for use by all Departments and Agencies of the Department of Defense. Requirements for
2、acquiring the electron tube described herein shall consist of this document and MIL-PRF-1. DESCRIPTION: Pentode, subminiature, beam power Outline - 3-3 (EIA). Base - E8-10. Envelope - T3. Cathode - Coated uni-potential. Base connections: Pin No. 1 2 3 4 5 6 7 8 Element g1 k, g3 h k, g3 a h g2 k, g3
3、ABSOLUTE- RATINGS: Parameter: Ef Eb Ec1 Ec2 Ehk Rk Rg1 Ik Pp Pg2 TE Alt Unit: V V dc V dc V dc v Ohms Meg mA dc W W C ft Maximum: 6.6 165 0, -55 155 200 - 0.55 50 3.7 0.4 220 See note 1 Minimum: 6.0 - - - - - - - - - - - Test Conditions: 6.3 110 0 110 0 270 - - - - - - GENERAL: Qualification Not req
4、uired. This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III. AMSC N/A FSC 5960 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-1/175K 2 TABLE I. Testing and inspection. Requirement or t
5、est MIL-STD-1311 Method Conditions Symbol Limits Units Min Max Conformance inspection, part 1 Electrode current (1) (anode) 1256 See note 2 Ib 23 37 mA dc Electrode current (2) (anode) 1256 Ec1 = -40 V dc; Rk = 0 Ib - 100 A dc Total grid current (1) 1266 Rgl = 1.0 Meg (see note 2) Icl 0 -1.0 A dc He
6、ater current 1301 If 420 480 mA Heater-cathode leakage 1336 Ihk - 15 A dc Power output (1) 1341 Esig = 6.4 V ac; Rp = 3,000 ohms Po 0.75 - W Short and discontinuity Detection 1201 - - - - Conformance inspection, part 2 Insulation of electrodes 1211 R 50 - Meg Low-frequency vibration 1031 Rp = 2,000
7、ohms; 15 G; F = 40 Hz Ep - 100 mV ac Audio frequency noise 1246 Ecal = 150 mV ac; Ecc2 = 110 V dc; Ecl = -8.7 V dc; Rk = 0; Rp = 2,000 ohms; Rgl = 0.5 Meg; Rg2 = 10,000 ohms; Cg2 = 4.0 F EB - 17 vu Electrode current (screen) 1256 Ic2 0 4.0 mA dc Grid currents 1266 Ef = 7.5 V; Ecl = -40 V dc; Rgl = 1
8、.0 Meg; Rk = 0 (see note 3) Is(gl) 0 -2.0 A dc Transconductance 1306 Sm 3,500 4,900 mhos Anode resistance 1311 rp 0.01 - Meg Direct-interelectrode capacitance 1331 .405 in. dia shield Cpq Cin Cout - 5.5 6.5 0.20 7.5 8.5 pF pF pF Power output (2) 1341 Ef = 5.7 V; Esig = 6.5 V ac; Rp -3,000 ohms Po Ef
9、 - 15 % Lead fatigue 1116 - - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-1/175K 3 TABLE I. Testing and inspection - Continued. Requirement or test MIL-STD-1311 Method Conditions Symbol Limits Units Min Max Conformance inspection, part
10、2 - Continued Envelope strain 2126 - - - - Shock 1041 450 G: Ebk = +100 V dc; Rg1 = 0.1 Meg Vibration fatigue test 1031 2.5 G; fixed frequency; F = 25 min, 60 max - - - - Post-shock and vibration-fatigue test end points: - Low-frequency vibration 1031 Ep - 300 mV ac Heater-cathode leakage 1336 Ihk -
11、 40 A dc Change in power output (1) of individual tubes 1341 Po t - 20 % Permanence of marking 1105 - - - - Conformance inspection, part 3 Stability life test 1516 Eb = Ec2 = 100 V dc; Ehk = +200 V dc; Rgl = 0.47 Meg; Rk = 220 ohms; TA = room - - - - Stability life test end point: - Change in power
12、output (1) of individual tubes 1341 Po t - 10 % Heater-cycling life test 1506 Ef = 7.0 V; 1 min “on”; 4 min “off”; Ehk = 140 V ac; Ecl = Ec2 = Eb = 0 - - - - Heater-cycling life-test end point: - Heater-cathode leakage Ihk - 40 A dc Intermittent life test (room temperature) 1501 Stability life-test,
13、 or equivalent conditions; TA = room - - - - Intermittent life-test end point (room temperature, 500 hours): - Insulation of electrodes 1211 R 50 - Meg Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-1/175K 4 TABLE I. Testing and inspection - C
14、ontinued. Requirement or test MIL-STD-1311 Method Conditions Symbol Limits Units Min Max Conformance inspection, part 3 - Continued Intermittent life-test end point: (room temperature): (1,000 hours) - Insulation of electrodes 1211 R 25 - Meg Intermittent life test 1501 Stability life-test condition
15、s; TE = +220C (min) (see note 4) - - - - Intermittent life-test end points (500 hours): - Heater current 1301 If 414 492 mA Heater-cathodeleakage 1336 Ihk - 60 A dc Total grid current (1) 1266 Icl 0 -2.0 A dc Change in power output (1) of individual tubes 1341 Po t - 20 % Power output (1) average ch
16、ange 1341 Avg. Po t - 15 % Insulation of electrodes 1211 R 50 - Meg Power output (2) 1341 Po Ef - 15 % Intermittent life-test end points: (1,000 hours) - Inoperatives - - - - - Heater current 1301 If 414 492 mA Heater-cathode leakage 1336 Ihk - 60 A dc Total grid current (1) 1266 Icl 0 -2.0 A dc Cha
17、nge in power output (1) of individual tubes 1341 Po t - 25 % Insulation of electrodes 1211 R 25 - Meg Power output (2) 1341 Po Ef - 20 % Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-E-1/175K 5 NOTES: 1. See “Reduced pressure (altitude) rating”
18、, and altitude, maximum peak voltage in the basic document. 2. This test to be performed at the conclusion of the holding period. 3. Prior to this test, the tube shall be preheated a minimum of 5 minutes at the conditions specified below. The 3-minute test is not permitted. Test at preheat condition
19、s within 3 seconds after preheating. Total grid current (2) shall be the last test performed on the sample selected for the total grid current (2) test. 4. Envelope temperature (TE) requirements, when measured in accordance with the temperature by conduction-band measurement (MIL-STD-1311, method 12
20、26), will be satisfied if a tube having bogey IB (+5 percent) under normal test conditions, is determined to operate at or above minimum specified temperature at any position in the life-test rack. Reference documents.In addition to MIL-PRF-1 this specification sheet references MIL-STD-1311. The mar
21、gins 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 contractors are cautioned to evaluate the
22、 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 (Project 5960-2013-024) DLA - CC Review activities: Army - MI Navy - AS, CG, MC,
23、OS 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.dla.mil/. Ef Ec1 Ec2 Ec3 Eb Rk Rg1 V V dc V dc V dc V dc Ohms Meg 7.5 0 100 0 100 220 0.47 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
