MIL-C-24308 D Subminiature D*H D*H hermetically sealed connectors are designed to meet environmental conditions of extreme pressure differential. These connectors are part of the ITT Cannon D Subminiature series and are qualified to MIL-C-24308 (refer to page 41 for cross reference information). The hermetic seal prevents leakage and subsequent accumulation of corrosive moisture behind the connector. There are five basic shell sizes in both standard and thru-bulkhead designs which can accommodate from nine to 50 contacts. Polarization is achieved by the keystone shape of the shell, a feature of all connectors within the D Subminia- ture series. How to Order D*H D E H 9 P 0 0 1 SERIES PREFIX SHELL SIZE CLASS CONTACT ARRANGEMENT SERIES PREFIX ITT Cannon prefix SHELL SIZE E, A, B, C, D CONTACT TYPE FLANGE TYPE MOUNTING J CONTACT TERMINATION CONTACT TYPE P — Pin only CONTACT ARRANGEMENT See page 41. FLANGE TYPE 0 — Solid flange, no mounting or locking facilities 1 — Two .120 dia. mounting holes 2 — Two jackposts accepting No. 4-40 screws D*TBH MOUNTING 0 — Standard 4 — Shell brazed to plate; can be front or rear panel mounted CONTACT TERMINATION 1 — Eyelet 2 — Solder pot Printed circuit contacts — Consult factory D E TB H 9 P 0 SERIES PREFIX SHELL SIZE SHELL STYLE CLASS SERIES PREFIX ITT Cannon prefix SHELL SIZE E, A, B, C, D SHELL STYLE TB – Thru-bulkhead CONTACT ARRANGEMENT CONTACT TYPE FLANGE TYPE CLASS H — Hermetic CONTACT ARRANGEMENT See page J-48. CONTACT TYPE P — Pin only Dimensions shown in inches (mm) Specifications and dimensions subject to change www.ittcannon.com J-45 FLANGE TYPE 00 — Solid flange, no mounting or locking facilities 10 — Two .120 (3.05) dia. mounting holes 20 — Two jackposts accepting #4-40 screws on layout identification side 30 — Two jackposts on both sides (D*TBH only) Hermetic Connectors CLASS H — Hermetic MIL-C-24308 D Subminiature D*H Materials and Finishes Shell — In accordance with ASTM 620, 619, 568 — Insulator — Compression glass Contacts — In accordance with ASTM A108 — Low carbon steel, plated with electro-deposited tin over cadmium over copper flash Steel, plated with gold over nickel Military vs. ITT Cannon Current Ratings MIL-W-5088B, Paragraph 3.9.2.1.2 specifies: “Table 1 current ratings for cables in bundles are based upon 15 or more cables carrying no more than 20% of the total carrying capacity of the bundle.” Table 1 specifies a current rating of 7.5 amps maximum for single wires in bundles of 15 or more wires. NOTE: Wires and contacts are both considered to be in the category of conductors. Explanation If 15 wires (normally rated at 7.5 amps per wire maximum, or at least a total bundle current of 112.5 amps) are not to carry more than 20% of the total 112.5 amps, the average current rating per wire is 20% of 112.5 amps (total bundle capacity) divided by 15 (number of wires). Conclusion The Military rating of #20 contacts or wires is 1.5 amps average (based on 15 wires per bundle or 15 contacts per plug) vs an ITT Cannon rating of 5 amps. 7.5 AMP CONFINED 300 250 7.5 AMP FREE AIR 5 AMP CONFINED 200 150 5 AMP FREE AIR 100 150 J Hermetic Connectors Average Maximum Temperature vs Connector Size for various current ratings of mated pairs of D Subminiature connectors TEMPERATURE (F°) The ITT Cannon rating for #20 contacts is 5 amps, which means 5 amps for all contacts simultaneously. MIL-W-5088 rates #20 contacts at 7.5 amps maximum. The explanation is as follows: E A B C CONNECTOR SIZE D Notes: 1. Free air condition. Connectors not shielded from ambient condition in any manner. 2. Confined condition. Connectors placed in insulated box (1 x 2 x 3.5) during test, with no moving air. 3. Average maximum temperature stabilization: 1 hour or less in all cases. 4. All contacts in each mated pair tested were wired in series with specified current flowing. 5. Ambient conditions 77°F, 50% rh. Test Data All voltages are measured from contact to shell, in unmated condition. Voltage Rating (ac) Sea Level Test (Max.) 750 Altitude (feet) 20,000 50,000 625 225 70,000 175 Insulation Resistance.....5,000 megohms min. when tested per MIL-STD-202A, Method 302 Contact Voltage Drop ....6.67 millivolts per amp max. when mated with any Original D or GOLDEN-D connector receptacle Air Leakage Rate ...........1 micron cubic ft/hour max. (1.04 x 10-5 cc/sec.) at 1 atm pressure differential Vibration Resistance ......Exceeds test requirements of MILRef. MIL-C-24308 STD-202, Method 204, Condition B Corrosion Resistance .....Exceeds requirements of 48 hour Ref. MIL-C-24308 salt spray exposure, tested in accordance with MIL-STD-202, Method 101 Shock ............................Exceeds tests for MIL-STD-202 Ref. MIL-C-24308 Method 213 DWV..............................750 VAC rms Dimensions shown in inches (mm) Specifications and dimensions subject to change J-46 www.ittcannon.com MIL-C-24308 D Subminiature D*H Standard D*H Through Bulkhead D*TBH J H G ± .010 ± .010 (0.25) (0.25) .725 (18.42) .369 (9.37) — — .932 (23.67) .369 (9.37) — — 1.479 (35.57) .369 (9.37) — — 2.125 (53.98) .369 (9.37) — — 2.000 (50.80) .500 (12.70) — — Dimensions shown in inches (mm) Specifications and dimensions subject to change www.ittcannon.com J-47 J ± .010 (0.25) .904 (2.39) — .904 (2.39) — .103 (2.62) — .103 (2.62) — .103 (2.62) — K ± .008 (0.20) — .236 (5.99) — .236 (5.99) — .226 (5.74) — .226 (5.74) — .226 (5.74) M ± .015 (0.38) .334 (8.48) — .334 (8.48) — .334 (8.48) — .334 (8.48) — .334 (8.48) — X X Solder .238 (6.05) — .238 (6.05) — .238 (6.05) — .238 (6.05) — .238 (6.05) — Eyelet .161 (4.09) — .161 (4.09) — .161 (4.09) — .161 (4.09) — .161 (4.09) — Hermetic Connectors F E D• C B• A ± .010 ± .014 (0.36) ± .010 ± .005 ± .010 Part Number ± .010 - .005 (0.13) (0.25) (0.25) (0.13) (0.25) (0.25) by Shell Size — .498 (12.65) 1.208 (30.68) .703 (17.86) .984 (24.99) .366 (9.30) DEH9P-* .498 (12.65) .112 (2.84) DETBH9P-* 1.208 (30.68) .703 (17.86) .984 (24.99) .366 (9.30) — .498 (12.65) DAH15P-* 1.545 (39.24) 1.029 (26.14) 1.312 (33.32) .366 (9.30) .498 (12.65) .112 (2.84) DATBH15P-* 1.545 (39.24) 1.029 (26.14) 1.312 (33.32) .366 (9.30) — .498 (12.65) DBH25P-* 2.093 (53.16) 1.589 (40.36) 1.852 (47.04) .384 (9.75) .498 (12.65) .128 (3.25) DBTBH25P-* 2.093 (53.16) 1.589 (40.36) 1.852 (47.04) .384 (9.75) — .498 (12.65) DCH37P-* 2.733 (69.42) 2.237 (56.82) 2.500 (63.50) .384 (9.75) .498 (12.65) .128 (3.25) DCTBH37P-* 2.733 (69.42) 2.237 (56.82) 2.500 (63.50) .384 (9.75) — DDH50P-* 2.640 (67.06) 2.133 (54.18) 2.406 (61.11) .490 (12.45) .610 (15.49) DDTBH50P-* 2.640 (67.06) 2.133 (54.18) 2.406 (61.11) .490 (12.45) .610 (15.49) .128 (3.25) *Add contact termination mounting, and flange type; see part number explanation. •Dimensions B and D are measured as outside dimensions from the start of the radius corner. MIL-C-24308 D Subminiature D*H Mounting Dimensions Hermetic sealing is effective only when connectors are front panel mounted, except for brazed assemblies in which both shells are brazed to the plate. Brazed assemblies may be used for either front or rear panel mounting, and entire connector is subject to leak test. Consult factory for other rear mounting applications. D*TBH Part Number by Shell Size DEH9P-* DETBH9P-* DAH15P-* DATBH15P-* DBH25P-* DBTBH25P-* DCH37P-* DCTBH37P-* DDH50P-* DDTBH50P-* J Hermetic Connectors D*H C ± .005 (0.13) .984 (24.99) .984 (24.99) 1.312 (33.32) 1.312 (33.32) 1.852 (47.04) 1.852 (47.04) 2.500 (63.50) 2.500 (63.50) 2.406 (61.11) 2.406 (61.11) P .735 (18.67) — .942 (23.93) — 1.489 (37.82) — 2.135 (54.23) — 2.010 (51.05) — S .379 (9.63) — .379 (9.63) — .379 (9.63) — .379 (9.63) — .510 (12.95) — U Min. .794 (20.17) .794 (20.17) 1.120 (28.45) 1.120 (28.45) 1.682 (42.72) 1.682 (42.72) 2.330 (59.18) 2.330 (59.18) 2.226 (56.54) 2.226 (56.54) V Min. .457 (11.61) .457 (11.61) .457 (11.61) .457 (11.61) .477 (12.12) .477 (12.12) .477 (12.12) .477 (12.12) .583 (14.81) .583 (14.81) Approx. Weight 9g 23g 25g Cross Reference Chart Military Part No. M24308/9-1 M24308/9-2 M24308/9-3 M24308/9-4 M24308/9-5 M24308/9-6 M24308/9-7 ITT Cannon Part No. DEH9P002 DAH15P002 DBH25P002 DCH37P002 DDH509002 DEH9P001 DAH15P001 Military Part No. M24308/9-8 M24308/9-9 M24308/9-10 M24308/9-11 M24308/9-12 M24308/9-13 M24308/9-14 ITT Cannon Part No. DBH25P001 DCH37P001 DDH50P001 DEH9P202 DAH15P202 DBH25P202 DCH37P202 Military Part No. M24308/9-15 M24308/9-16 M24308/9-17 M24308/9-18 M24308/9-19 M24308/9-20 ITT Cannon Part No. DDH50P202 DEH9P201 DAH15P201 DBH25P201 DCH37P201 DDH50P201 Contact Arrangements Face View Pin Insert Shell Size No. of Contacts Contact Size Shell Size No. of Contacts Contact Size E 9 #20 A 15 #20 C 37 #20 B 25 #25 D 50 #20 Dimensions shown in inches (mm) Specifications and dimensions subject to change J-48 www.ittcannon.com