ECA-209-A-1963-R1976.pdf
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1、II II EIA STANDARDS ELECTRON TUBES Section 1 - DIMENSIONAL CHARACTERISTICS Section 2 -BASES, CAPS, AND TERMINALS Section 3 - GAUGES x ELECTRONIC INDUSTRIES ASSOCIATION (Supplement No. 2 to RS-209-A) STANDARD RS-209-A-2 Formulated by IEDEC Elecfron Tube Council Copyright Electronic Components, Assemb
2、lies leads are on 0.048” (1.22 mm.) centers as defined by lead spacing gauge GE 7-3, Sheet 26, Section 3. Copyright Electronic Components, Assemblies meters max. min. i nom. WULX. 18.26 I 19.84 20.67 -_ - 16.66 27.0 31.0 34.9 2%2 15.1 16.7 2%2 12.0 14.3 16.6 %6 3.18 3.97 4.76 0.044 0.991 1 .O4 1 1.1
3、17 16/32 26.2 27.8 29.3 %6 2%2 18.2 1% degrees 30“ 60“ notes 1 NOTES : 1. Including eccentricity. 2 . 1/16 (1.6 mm.) max. untinned section all radial pins. 3. For pin alignment and concentricity use Gauge No. GE7-2, Sheet 25, Section 3. Copyright Electronic Components, Assemblies dX. min, nom. ?lGX.
4、 min. nom. m x . 0.845 20.32 21.46 192 1.969 - 50.01 A C D 1.437 1.562 1.687 36.50 39.67 42.85 0.875 - 22.22 3 M 0.800 - - - - 6-6 notes Fef. inches millimeters min. nom. m x . min. nom. nmx. A 0.800 - - 61.11 C 2.406 - D 1.875 2.000 2.125 47.52 50.80 53.97 - 22.22 3 M 0.875 - 0.845 20.32 21.46 192
5、6-7 (Note4) notes ref. inches millimeters min. nom. Irno. min. nom. m x . A 0.800 0.845 20.32 - 2.844 - 72.24 C D 2.312 2.437 2.562 58.72 61.90 65.07 M - - 0.875 - 21.46 172 - - - 22.22 3 6-8 TSf. inches millimeters min. n m max. min. nom. m x . 0.800 - 0.845 20.32 - - 83.34 d 3.281 - A C D 2.750 2.
6、875 3.000 69.85 73.02 76.20 M - - 0.875 - - notes 21.46 1,2 22.22 3 (over) I . (Revision of fimt issue) Copyright Electronic Components, Assemblies . - 32.54 - 87.31 B 1.062 1.188 - 30.1 D 58.8 - 73.0 C 19/32 - 9-21 milimeters inches ref. B c D 88.90 58.8 74.6 9-23 ref. inches rnzllimters B C 90.48
7、D 2% 58.8 76.2 (over) .- - Copyright Electronic Components, Assemblies . 0.096 0.447 0.136 0.050 0.570 0.510 0.050r 0.055 0.317 0.315 0.372 0.363 0.096 0.085 - - - - - r E 2 4 2 4 min. 2.286 8.13 10.85 - - c 13.97 12.45 - - c 1.02 7.75 7.62 8.95 8.72 2.169 1.905 - - millimeters nom. 19.05 2.362 11.1
8、0 14.22 12.70 - - - 0.79r 1.02r 1.19 7.92 7.82 9.19 8.97 2.286 2.032 - - _._ M X L 2.438 . - - 11.35 3.42 1.27 14.47 12.95 - 1.27r 1.39 8.05 8.00 9.44 9.22 2.413 2.159 - - - degrees 16%1“ 32%“ notes 3 4 6 For the purpose of establishing interchangeability the dimensional limits as here given shall b
9、e standard for the orientation of base pins and index guide of Group No. 2 bases. (Formerly known as Submagnal Bases.) It should be noted that the vertical dimensions are referred to the underside of a base as differentiated from the general practice in this standard of dimensioning from the outer r
10、im. NOTES: 1 . Dimensions fixing the contact pin positions refer to their fixed ends and are given for information only. Pin positions may be checked only by means of alignment gauge No. GBll-2 as specified in Section 3, Sheet 18. 2. Underside of Base. 3. Dimension B does not include increase in pin
11、 diameter due to solder. 4. Dimension L may be increased by 0.030“ (0.76 mm.) max. for solder. 5. Any projection on the under-surface of the base other than these shown, such as a rim or external barriers, shall have a height not exceeding 0.045“ (1.14 mm.) . 6. Pin numbering is in accordance with E
12、IA established rules and as viewed from the pin ends. The, drawing shows the numbering of the pins as seen from their free ends. The numbers indicated above each base drawing refer to the Group Number of Pin and Index Guide Dimensional Gmts. Copyright Electronic Components, Assemblies . ref. 0.020 -
13、 - 0.60 D 1.337 1.377 33.96 - 34.97 C K 1.375 - 34.93 - Copyright Electronic Components, Assemblies - nmn. m X . min. nom. m a % - 0.50 - - 0.020 - D 1.245 1.295 31.63 32.89 C K - 1.087 - - 27.61 - _- Copyright Electronic Components, Assemblies 21 7.14 12.70 - - - - 10.109 13.66 6.96 0.79 1.02 0.79
14、6.360 - - - - - - 5.512 - - m X . - 1.320 1.02 30.14 - - - - - - 6.68 1.90 0.76 10.337 - - - - 1.24 , 6.477 6.766 2.28 0.88 0.88 5.613 - - dgT66 221/22“ 46“ RS-209-A Sectlon 2 Sheet 71 note8 1 2 NOTES: 1 . This dimension may vary within the limits shorn around the periphery of any individual pin. Th
15、is surface of the pin shall be convex or conical in shape and shall not be brought to a sharp point. 2. This surface*shall be flat. For pin alignment use Gauge No. GD8-1, Sheet 23, Section 3. Copyright Electronic Components, Assemblies E7-77-0.020“ For pin alignment use Gauge No. GE12-5, Sheet 37-1,
16、 Section 3 . (0.50 mm.) . Copyright Electronic Components, Assemblies male only -c - Caps (single or multiple diameters), leads, Cavities, non-cylindrical 2. Single Electrical 1 thimbles b. Any other configuration of J - caps, non-cylindrical contact surface thimbles Contact 3. Multiple Electrical C
17、ontacts a. Index provided by central, index member b. Index otherwise provided- may be partial index- (by terminal position, bayonet- pin (s) , reference mark, or non-central index member . (1) Center index only B - Octal, duodecal, diheptal, of this form: magna1 O (2) Center index and lock-in of th
18、is form: Locking-in, loktal, T - Octalox o (3) Any other center index . configuration (1) Terminals not integral A - Small 4 pin, medium with tube envelope (2) Terminals integral with tube envelope 7 pin, jumbo 4 pin, bayonet candelabra E - Miniature 7 pin, septar 7 pin, subminiatures c. No angular
19、index provided-( 1) Any configuration G - Screw, coaxial NOTE: A base or accessory which has the attributes of two or more classes shall be assigned the first applicable letter symbol according to thc following sequence: D, B, L, E, A, G, C, J, F. B. Tiic first number symbol. It shall be standard to
20、 indicate the number of terminals or contact members the accessory provides or with which it is fitted by the first number symbol. (Accessories identified by letter symbol “C” shall be indicated by “ 1 . ” Accessories identified by letter symbol “F” shall be indicated by “O.”) C. The second number s
21、ymbol. It shall be standard to indicate the serial order of the assignment of the designation within each generic group by the second number symbol, beginning with No. 1 for each group. Copyright Electronic Components, Assemblies and is the first serially assigned gauge for such measurement. 3. Stan
22、dard base pin alignment gauges shall conform to the drawings contained in this standard. The total weight given on each gauge drawing is the required total weight of gauge and accessory. The procedure indicated on each drawing refers to the procedures shown below for use of the gauge. 4. Standard Pr
23、ocedures (Specify either “a“ or b) a Gauging Procedure 1 The entire length of the pins shall, without undue force, pass into and disengage from the prescribed gauge. b. Gauging Procedure 2 The gauge shall be attached to such an accessory weight 85 will give the total weight prescribed on the gauge d
24、rawing. The entire length of the pins shall pass into the gauge and, on withdrawal, shall become disengaged without lifting the total weight of assembled gauge and accessory weight. See Part III on sheet 3. B . Ring Gauges for Base Diameters -a 1. Standard ring gauges for checking maximum and minimu
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- ECA 209 1963 R1976
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