D-Sub Backshells – Mouser Liechtenstein

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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 25Backshell, Top Entry, Threaded, Low Profile, Rotating Male Jackscrew, Conductive Electroless Nickel Finish

D25000X3WLE0/AA
Amphenol Positronic
1: CHF 367.20
7In Stock
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

7In Stock

CHF 367.20

CHF 312.18

CHF 304.88

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: CHF 365.90
7In Stock
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

7In Stock

CHF 365.90

CHF 311.08

CHF 303.80

Min.: 1
Mult.: 1

D-Sub Backshell

Straight

1 Entry

Aluminum

Nickel

25 Position

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

D104000X3PLE0/AA
Amphenol Positronic
1: CHF 455.68
10Expected 9/21/2026
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 9/21/2026

CHF 455.68

CHF 388.79

CHF 381.86

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: CHF 454.43
10Expected 9/18/2026
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 9/18/2026

CHF 454.43

CHF 387.72

CHF 380.80

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: CHF 431.08
10Expected 9/10/2026
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 9/10/2026

CHF 431.08

CHF 366.49

CHF 357.86

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: CHF 429.79
10Expected 9/8/2026
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 9/8/2026

CHF 429.79

CHF 365.40

CHF 356.79

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: CHF 371.86
10Expected 9/22/2026
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 9/22/2026

CHF 371.86

CHF 316.14

CHF 308.74

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: CHF 370.56
10Expected 9/21/2026
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 9/21/2026

CHF 370.56

CHF 315.04

CHF 307.66

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: CHF 345.87
10Expected 9/10/2026
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 9/10/2026

CHF 345.87

CHF 294.04

CHF 279.99

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: CHF 344.56
10Expected 9/10/2026
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 9/10/2026

CHF 344.56

CHF 292.93

CHF 278.88

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: CHF 394.83
10Expected 9/15/2026
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 9/15/2026

CHF 394.83

CHF 335.67

CHF 327.80

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: CHF 393.54
10Expected 9/18/2026
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 9/18/2026

CHF 393.54

CHF 334.56

CHF 326.72

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: CHF 417.86
10Expected 9/21/2026
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 9/21/2026

CHF 417.86

CHF 355.25

CHF 346.89

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: CHF 416.58
10Expected 9/10/2026
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 9/10/2026

CHF 416.58

CHF 354.15

CHF 345.82

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: CHF 388.60
10Expected 10/13/2026
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 10/13/2026

CHF 388.60

CHF 330.36

CHF 322.62

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: CHF 387.30
10Expected 9/8/2026
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 9/8/2026

CHF 387.30

CHF 329.26

CHF 321.54

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: CHF 440.76
10Expected 9/22/2026
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 9/22/2026

CHF 440.76

CHF 374.72

CHF 365.88

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: CHF 439.48
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

CHF 439.48

CHF 373.62

CHF 364.82

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: CHF 409.87
10Expected 9/11/2026
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 9/11/2026

CHF 409.87

CHF 348.44

CHF 340.25

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: CHF 408.56
10Expected 9/4/2026
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 9/4/2026

CHF 408.56

CHF 347.35

CHF 339.19

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: CHF 348.80
10Expected 9/22/2026
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 9/22/2026

CHF 348.80

CHF 296.53

CHF 282.46

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: CHF 347.49
10Expected 9/18/2026
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 9/18/2026

CHF 347.49

CHF 295.42

CHF 281.36

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: CHF 324.44
10Expected 9/11/2026
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 9/11/2026

CHF 324.44

CHF 275.82

CHF 261.87

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: CHF 323.14
10Expected 9/10/2026
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 9/10/2026

CHF 323.14

CHF 274.71

CHF 260.78

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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