GMMD DIFFERENTIAL TWINAX Modular High-Speed Micro-D Contact arrangements and product specifications
GMMD Contact Arrangements
Contact Arrangement
2T
4T
2T9
3C9
4T9
Shell Size
9
15
21
25
31
No. / type of contacts
2 Twinax
4 Twinax
2 Twinax, 9 #24 USB 3.1, SATA + power
3 Coax, 9 #24
4 Twinax, 9#24
10GbE, 2xSATA, SpW, 2xSpFi
Example applications
SpFi
HDMI, DP, DVI, 10GbE + power
Contact Arrangement
5T9
4T15
8T
Shell Size
37
37
37
No. / type of contacts Example applications
5 Twinax, 9 #24
4 Twinax, 15 #24
8 Twinax 2x10GbE
DP incl. Aux channels
Contact Arrangement
8T15
4T31
12T 51-2
Shell Size
51-2
51-2
No. / type of contacts
8 Twinax, 15 #24 DP or HDMI + USB 3.1, dual DVI
4 Twinax, 31 #24
12 Twinax
Example applications
Contact Arrangement
12T15
6T37
8T31
16T
Shell Size
67
67
67
67
No. / type of contacts Example applications
12 Twinax, 15 #24
6 Twinax, 37 #24
8 Twinax, 31 #24
16 Twinax 4x10GbE
Example contact arrangements shown. Others available, please consult factory for details.
GMMD Modular High-Speed Micro-D Standard Materials and Finishes
Aluminum Alloy 6061 IAW SAE AMS-QQ-A-250/11: Plating code 2: electroless nickel IAW ASTM B733 / Plating code 5: gold plated IAW ASTM B488 over electroless nickel IAW ASTM B733-90. / Plating code 6: chem film IAW MIL-C-5541 Class 3 Stainless Steel, 300 Series: Plating Code 3: Passivated IAW SAE AMS 2700
Connector Shell, Metal
#24 Insulator and organizer tray, Terminal Block, PCB (LCP & PPS) Interfacial Seal (where applicable)
Liquid crystal polymer, 30% glass-filled or polyphenyl sulfide
Fluorosilicone rubber IAW MIL-R-25988
Conductive Potting
Silver-loaded epoxy
EMI Spring
Gold-plated stainless steel
Beryllium copper, gold plated IAW ASTM B 488 Type II Class 1.27 (50 Μin minimum) Code C, over nickel underplate IAW SAE AMS-QQ-N-290, class 2, (50-150 µin). Phos bronze IAW ASTM 139 gold plated IAW ASTM B 488 Type II Class 1.27 (50 Μin minimum) Code C, over nickel underplate IAW SAE-AMS-QQ-N-290, Class 2, (50-150 µin).
#24 Pin Contact (TwistPin)
#24 Socket Contact
Twinax #30 pin contacts Twinax #30 socket contacts
Spring Temper Gold alloy, unplated, per ASTM B477 and ASTM B541
Gold alloy, unplated, per ASTM B477 and ASTM B541
Twinax Insert
unfilled PEEK
Encapsulant (Potting)
Epoxy resin, hysol EE4215/HD3561
Jackscrews, Jackposts, Float Mounts
Stainless steel, 300 series, passivated IAW SAE AMS 2700
Twinax wire
AWG 28 or 30 twisted pair, PTFE dielectric, silver plated copper conductors, SPC braid, fluoropolymer jacket
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