D-Sub Backshells – Mouser Singapore

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X3 Precision-Machine One-Piece Threaded Backshells

Positronic X3 Precision-Machined One-Piece Threaded Backshells are designed for use with D-Sub connectors and circular M38999/AS85049 backshell accessories. These backshells deliver robust mechanical integrity and continuous 360° EMI shielding. The X3 threaded backshells are compatible with machined and stamped shells for standard, high, and mixed-density D-Sub connectors, including the Mach-D series. These backshells are available in six shell sizes with both standard and low-profile configurations. The X3 threaded backshells are housed in aluminum or stainless steel with multiple plating options and can be specified with fixed or rotating jackscrews. These backshells operate at -55°C to 125°C temperature range and are ideal for military, aero, spaceflight, and industrial applications.

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Part #

D-Sub Backshells 104Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D104000X3PLE0/AA
Amphenol Positronic
1: $769.88
10Expected 24/8/2026
New Product

Mfr. Part No.
D104000X3PLE0/AA

Mouser Part No
276-D104000X3PLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 104Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$769.88

$656.87

$645.16

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

104 Position

D-Sub Backshells 104Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D104000X3PLT20/AA
Amphenol Positronic
1: $767.76
10Expected 24/8/2026
New Product

Mfr. Part No.
D104000X3PLT20/AA

Mouser Part No
276-D104000X3PLT20AA

New Product

Amphenol Positronic

D-Sub Backshells 104Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$767.76

$655.06

$643.38

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

104 Position

D-Sub Backshells 104Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D104000X3WLE0/AA
Amphenol Positronic
1: $728.33
10Expected 24/8/2026
New Product

Mfr. Part No.
D104000X3WLE0/AA

Mouser Part No
276-D104000X3WLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 104Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$728.33

$619.19

$604.62

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

104 Position

D-Sub Backshells 104Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D104000X3WLT20/AA
Amphenol Positronic
1: $726.14
10Expected 24/8/2026
New Product

Mfr. Part No.
D104000X3WLT20/AA

Mouser Part No
276-D104000X3WLT20AA

New Product

Amphenol Positronic

D-Sub Backshells 104Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$726.14

$617.34

$602.81

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

104 Position

D-Sub Backshells 15Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D15000X3PLE0/AA
Amphenol Positronic
1: $628.28
10Expected 24/8/2026
New Product

Mfr. Part No.
D15000X3PLE0/AA

Mouser Part No
276-D15000X3PLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 15Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$628.28

$534.13

$521.63

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

15 Position

D-Sub Backshells 15Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D15000X3PLT20/AA
Amphenol Positronic
1: $626.08
10Expected 24/8/2026
New Product

Mfr. Part No.
D15000X3PLT20/AA

Mouser Part No
276-D15000X3PLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 15Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$626.08

$532.26

$519.81

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

15 Position

D-Sub Backshells 15Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D15000X3WLE0/AA
Amphenol Positronic
1: $584.35
10Expected 24/8/2026
New Product

Mfr. Part No.
D15000X3WLE0/AA

Mouser Part No
276-D15000X3WLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 15Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$584.35

$496.79

$473.04

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

15 Position

D-Sub Backshells 15Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D15000X3WLT20/AA
Amphenol Positronic
1: $582.15
10Expected 24/8/2026
New Product

Mfr. Part No.
D15000X3WLT20/AA

Mouser Part No
276-D15000X3WLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 15Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$582.15

$494.92

$471.17

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

15 Position

D-Sub Backshells 25Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D25000X3PLE0/AA
Amphenol Positronic
1: $667.08
10Expected 24/8/2026
New Product

Mfr. Part No.
D25000X3PLE0/AA

Mouser Part No
276-D25000X3PLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 25Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$667.08

$567.12

$553.82

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

25 Position

D-Sub Backshells 25Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D25000X3PLT20/AA
Amphenol Positronic
1: $664.89
10Expected 24/8/2026
New Product

Mfr. Part No.
D25000X3PLT20/AA

Mouser Part No
276-D25000X3PLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 25Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$664.89

$565.26

$552.00

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

25 Position

D-Sub Backshells 25Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D25000X3WLE0/AA
Amphenol Positronic
1: $620.40
10Expected 24/8/2026
New Product

Mfr. Part No.
D25000X3WLE0/AA

Mouser Part No
276-D25000X3WLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 25Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$620.40

$527.44

$515.10

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

25 Position

D-Sub Backshells 25Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D25000X3WLT20/AA
Amphenol Positronic
1: $618.20
10Expected 24/8/2026
New Product

Mfr. Part No.
D25000X3WLT20/AA

Mouser Part No
276-D25000X3WLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 25Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$618.20

$525.57

$513.28

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

25 Position

D-Sub Backshells 37Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D37000X3PLE0/AA
Amphenol Positronic
1: $705.99
10Expected 24/8/2026
New Product

Mfr. Part No.
D37000X3PLE0/AA

Mouser Part No
276-D37000X3PLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 37Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$705.99

$600.21

$586.08

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

37 Position

D-Sub Backshells 37Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D37000X3PLT20/AA
Amphenol Positronic
1: $703.81
10Expected 24/8/2026
New Product

Mfr. Part No.
D37000X3PLT20/AA

Mouser Part No
276-D37000X3PLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 37Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$703.81

$598.35

$584.28

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

37 Position

D-Sub Backshells 37Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D37000X3WLE0/AA
Amphenol Positronic
1: $656.54
10Expected 24/8/2026
New Product

Mfr. Part No.
D37000X3WLE0/AA

Mouser Part No
276-D37000X3WLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 37Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$656.54

$558.16

$545.07

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

37 Position

D-Sub Backshells 37Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D37000X3WLT20/AA
Amphenol Positronic
1: $654.35
10Expected 24/8/2026
New Product

Mfr. Part No.
D37000X3WLT20/AA

Mouser Part No
276-D37000X3WLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 37Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$654.35

$556.29

$543.25

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

37 Position

D-Sub Backshells 50Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D50000X3PLE0/AA
Amphenol Positronic
1: $744.68
10Expected 24/8/2026
New Product

Mfr. Part No.
D50000X3PLE0/AA

Mouser Part No
276-D50000X3PLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 50Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$744.68

$633.09

$618.17

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

50 Position

D-Sub Backshells 50Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D50000X3PLT20/AA
Amphenol Positronic
1: $742.51
10Expected 9/9/2026
New Product

Mfr. Part No.
D50000X3PLT20/AA

Mouser Part No
276-D50000X3PLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 50Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 9/9/2026

$742.51

$631.24

$616.37

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

50 Position

D-Sub Backshells 50Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D50000X3WLE0/AA
Amphenol Positronic
1: $692.47
10Expected 24/8/2026
New Product

Mfr. Part No.
D50000X3WLE0/AA

Mouser Part No
276-D50000X3WLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 50Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$692.47

$588.70

$574.87

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

50 Position

D-Sub Backshells 50Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D50000X3WLT20/AA
Amphenol Positronic
1: $690.28
10Expected 24/8/2026
New Product

Mfr. Part No.
D50000X3WLT20/AA

Mouser Part No
276-D50000X3WLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 50Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$690.28

$586.85

$573.06

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

50 Position

D-Sub Backshells 9Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D9000X3PLE0/AA
Amphenol Positronic
1: $589.30
10Expected 24/8/2026
New Product

Mfr. Part No.
D9000X3PLE0/AA

Mouser Part No
276-D9000X3PLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 9Backshell, Top Entry, Threaded, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$589.30

$501.00

$477.22

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

9 Position

D-Sub Backshells 9Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D9000X3PLT20/AA
Amphenol Positronic
1: $587.10
10Expected 24/8/2026
New Product

Mfr. Part No.
D9000X3PLT20/AA

Mouser Part No
276-D9000X3PLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 9Backshell, Top Entry, Threaded, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$587.10

$499.12

$475.36

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

9 Position

D-Sub Backshells 9Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D9000X3WLE0/AA
Amphenol Positronic
1: $548.15
10Expected 24/8/2026
New Product

Mfr. Part No.
D9000X3WLE0/AA

Mouser Part No
276-D9000X3WLE0/AA

New Product

Amphenol Positronic

D-Sub Backshells 9Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$548.15

$466.00

$442.45

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

9 Position

D-Sub Backshells 9Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

D9000X3WLT20/AA
Amphenol Positronic
1: $545.94
10Expected 24/8/2026
New Product

Mfr. Part No.
D9000X3WLT20/AA

Mouser Part No
276-D9000X3WLT20/AA

New Product

Amphenol Positronic

D-Sub Backshells 9Backshell, Top Entry, Threaded, Low Profile, Fixed Female Jackpost, Conductive Electroless Nickel Finish

Learn More

Datasheet

10Expected 24/8/2026

$545.94

$464.13

$440.60

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

9 Position

X3 Precision-Machine One-Piece Threaded Backshells

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