The MACH-D MCBX and MCD Series connectors from Positronic offer robust solutions for various applications. They feature the innovative PosiBand contact technology, which enhances mechanical robustness and electrical performance through greater surface engagement and a solid, unbroken ring at the contact entry. This design eliminates weaknesses found in split-tine designs and provides more consistent electrical performance. PosiBand contacts offer low resistance (4 milliohms for size 20, 5 milliohms for size 22), allowing for power applications. They also feature lower average insertion forces for easier mating, especially in high-density configurations. PosiBand is qualified under SAE AS39029 and MIL-DTL-24308 specifications, as well as higher contact separation requirements.
| Series | Shell Size | Layout | Contact Gender | Termination | Contact Plating | Environmental Compliance | Shell Material | Locking System | Backshell/Boardlock | Mounting Option |
|---|---|---|---|---|---|---|---|---|---|---|
| MCBX | 17W2 (2) #8, (20) #20 | SWK3 (3) #8 | M (Male pin) | Fixed solder cup, signal contacts only | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, gold finish | 0 (None) | 0 (None) | 0 (Clearance hole) |
| MCBX | 17W5 (5) #8, (12) #20 | SW5 (5) #8 | MG (Male pin with grounding strips) | Right angle solder, signal and power contacts | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | ES (Rotating male jackscrews) | EN (Backshell) | R2 (Angle brackets) |
| MCBX | 27W2 (2) #8, (20) #20 | TW2 (2) #8, (5) #20 | S (Female socket) | Straight solder, signal contacts only | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Stainless steel, passivated | K (Rotating male jackscrews, low-profile) | C (Banding feature) | R6 (Angle brackets, clearance hole) |
| MCBX | 36W4 (4) #8, (32) #20 | SW5 (5) #8 | M (Male pin) | Wire, signal crimp contacts included | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, gold finish | S (Fixed female jackposts) | EN (Backshell) | R7 (Angle brackets, 4-40 threaded hole) |
| MCBX | 43W2 () #8, (41) #20 | SWK3 (3) #8 | MG (Male pin with grounding strips) | Wire, crimp signal & power contacts included | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | T2 (Fixed female jackposts, washer set) | NEW EN Backshell | R8 (Angle brackets, 4-40 locknut) |
| MCBX | 46W4 (4) #8, (42) #20 | TW2 (2) #8, (5) #20 | S (Female socket) | Fixed solder cup, signal contacts only | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Stainless steel, passivated | 0 (None) | 0 (None) | S (Standoffs, swaged, 4-40) |
| MCBX | 47TW1 (1) #8, (46) #20 | SW5 (5) #8 | M (Male pin) | Straight solder, signal and power contacts | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, gold finish | ES (Rotating male jackscrews) | EN (Backshell) | S5 (Locknut, swaged, 4-40) |
| MCBX | SHELL SIZE 1 | 2WK2 (2)#8 | M (Male pin) | Fixed solder cup, signal contacts only | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, gold finish | 0 (None) | 0 (None) | 0 (Clearance hole) |
| MCBX | SHELL SIZE 1 | SW1 (1)#8,(4)#20 | MG (Male pin with grounding strips) | Right angle solder, signal and power contacts | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | ES (Rotating male jackscrews) | EN (Backshell) | R2 (Angle brackets) |
| MCBX | SHELL SIZE 2 | 1WS (34) #8 | S (Female socket) | Straight solder, signal contacts only | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Stainless steel, passivated | K (Rotating male jackscrews, low-profile) | C (Banding feature) | R6 (Angle brackets, clearance hole) |
| MCBX | SHELL SIZE 3 | 5W5 (5) #8 | M (Male pin) | Wire, signal crimp contacts included | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, gold finish | S (Fixed female jackposts) | EN (Backshell) | R7 (Angle brackets, 4-40 threaded hole) |
| MCBX | SHELL SIZE 4 | 8WS (8) #8 | MG (Male pin with grounding strips) | Wire, crimp signal & power contacts included | -15 (50uin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | T2 (Fixed female jackposts, washer set) | NEW EN Backshell | R8 (Angle brackets, 4-40 locknut) |
| MCBX | SHELL SIZE 5 | 24W7 (7) #8, (17) #20 | S (Female socket) | Fixed solder cup, signal contacts only | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Stainless steel, passivated | 0 (None) | 0 (None) | S (Standoffs, swaged, 4-40) |
| MCD | 37 | 37 @#20 | M (Male pin) | Wire, order contacts separately | -15 (50pin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, gold finish | 0 (None) | 0 (None) | 0 (Clearance hole) |
| MCD | 37 | 37 @#20 | MG (Male pin with grounding strips) | Wire, crimp contacts included | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | ES (Rotating male jackscrews) | EN (Backshell) | R2 (Angle brackets) |
| MCD | 37 | 37 @#20 | S (Female socket) | Wire, fixed solder cup | -15 (50pin Au (min) over Ni over Cu) | /AA (RoHS) | Stainless steel, passivated | K (Rotating male jackscrews, low-profile) | C (Banding feature) | R6 (Angle brackets, clearance hole) |
| MCD | 37 | 37 @#20 | M (Male pin) | Straight solder, 0.71 [030] tail diameter | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, gold finish | S (Fixed female jackposts) | EN (Backshell) | R7 (Angle brackets, 4-40 threaded hole) |
| MCD | 37 | 37 @#20 | MG (Male pin with grounding strips) | Straight solder, 0.71 [030] tail diameter | -15 (50pin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | T2 (Fixed female jackposts, washer set) | NEW EN Backshell | R8 (Angle brackets, 4-40 locknut) |
| MCD | 37 | 37 @#20 | S (Female socket) | Right angle solder, 0.71 [030] tail diameter | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Stainless steel, passivated | 0 (None) | 0 (None) | S (Standoffs, swaged, 4-40) |
| MCD | 37 | 37 @#20 | M (Male pin) | Right angle solder, 0.71 [030] tail diameter | -15 (50pin Au (min) over Ni over Cu) | /AA (RoHS) | Aluminum, gold finish | ES (Rotating male jackscrews) | EN (Backshell) | S5 (Locknut, swaged, 4-40) |
| MCD | 37 | 37 @#20 | MG (Male pin with grounding strips) | Straight solder, 0.71 [030] tail diameter | -50 (50uin Au (min) over Cu) | /AA (RoHS) | Aluminum, electroless nickel finish | K (Rotating male jackscrews, low-profile) | C (Banding feature) | S6 (Standoffs, swaged, 4-40, boardlocks) |
| MCD | 37 | 37 @#20 | S (Female socket) | Straight solder, 0.71 [030] tail diameter | -15 (50pin Au (min) over Ni over Cu) | /AA (RoHS) | Stainless steel, passivated | S (Fixed female jackposts) | EN (Backshell) | S6 (Standoffs, swaged, 4-40, boardlocks) |
