TE Connectivity 748677-2 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748677-2 is a 15-position two-piece backshell connector with 180° shielded cable exit, designed for use with D-Sub connectors in the AMPLIMITE HD-20 series. This component is classified as an accessory backshell for D-shaped connectors and is constructed from ABS plastic with nickel over copper plating.

The 748677-2 carries an obsolete product status, indicating it is no longer in active production. Identification of equivalent substitute parts is necessary for ongoing system maintenance, repair, and new design implementations where this connector type is specified.

Key Parameters

Parameter	Value
Number of Positions	15
Accessory Type	Two Piece Backshell
Compatible Shell Size	A
Compatible D-Sub Size	15pos and HD26pos
Cable Exit Angle	180°
Shielding	Shielded
Cable Type	Round
Primary Material	Acrylonitrile Butadiene Styrene (ABS)
Plating	Nickel over Copper
Hardware	Assembly Hardware, Grommets; Mating Screws 4-40
Color	Silver

Substitute Part Grouping Explanation

Substitution of the 748677-2 is determined by equivalence across the following critical parameters:

Number of Positions: 15 positions
Accessory Type: Two piece backshell configuration
Compatible Shell Size: Size A
Compatible D-Sub Size: 15pos and HD26pos compatibility
Cable Exit Angle: 180° straight exit
Shielding: Shielded design
Cable Type: Round cable accommodation
Material Composition: ABS plastic construction
Plating Specification: Nickel over copper finish
Hardware Configuration: Assembly hardware, grommets, and 4-40 mating screws

The substitute part 5748677-2 maintains identical specifications across all these parameters, providing direct functional and mechanical equivalence to the obsolete 748677-2.

Parameter Comparison

Parameter	748677-2 (Main Part)	5748677-2 (Substitute)	Match Status
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Category	D-Sub, D-Shaped Connectors	D-Sub, D-Shaped Connectors	Identical
Series	AMPLIMITE HD-20	AMPLIMITE HD-20	Identical
Description	CONN BACKSHELL 15POS 180DEG SHLD	CONN BACKSHELL 15POS 180DEG SHLD	Identical
Number of Positions	15	15	Identical
Accessory Type	Two Piece Backshell	Two Piece Backshell	Identical
Compatible Shell Size	A	A	Identical
Compatible D-Sub Size	15pos and HD26pos	15pos and HD26pos	Identical
Cable Type	Round	Round	Identical
Cable Exit	180°	180°	Identical
Shielding	Shielded	Shielded	Identical
Primary Material	Acrylonitrile Butadiene Styrene (ABS)	Acrylonitrile Butadiene Styrene (ABS)	Identical
Plating	Nickel over Copper	Nickel over Copper	Identical
Hardware	Assembly Hardware, Grommets; Mating Screws 4-40	Assembly Hardware, Grommets; Mating Screws 4-40	Identical
Color	Silver	Silver	Identical
Product Status	Obsolete	Active	Different
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Different
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8538.90.8180	8538.90.8180	Identical

Engineering Selection Recommendations

The 5748677-2 serves as the direct substitute for the obsolete 748677-2. Both parts maintain identical mechanical and electrical specifications across all functional parameters, including position count, shell size compatibility, cable exit angle, shielding configuration, material composition, and hardware specifications.

The primary distinction between these parts is product status and regulatory compliance. The 748677-2 is obsolete and RoHS non-compliant, while the 5748677-2 is an active product with ROHS3 compliance. For new designs and ongoing applications subject to RoHS regulations, the 5748677-2 is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part provides equivalent functional performance.

Both parts carry identical moisture sensitivity levels (MSL 1), export classifications (EAR99), and tariff codes (8538.90.8180), indicating equivalent handling and regulatory treatment in these categories.

Frequently Asked Questions (FAQ)

Q: Can the 5748677-2 be used as a direct replacement for the 748677-2 in existing assemblies?

A: Yes. The 5748677-2 maintains identical mechanical and electrical specifications across all functional parameters. No design modifications are required for substitution.

Q: What is the difference between the 748677-2 and 5748677-2?

A: The parts are functionally equivalent. The primary differences are product status (748677-2 is obsolete; 5748677-2 is active) and regulatory compliance (748677-2 is RoHS non-compliant; 5748677-2 is ROHS3 compliant).

Q: Are there packaging differences between these parts?

A: The 748677-2 packaging specification is not provided in the available data. The 5748677-2 is supplied in bulk packaging.

Q: What are the key parameters that define substitution compatibility for this backshell connector?

A: Substitution compatibility is determined by: 15-position configuration, two-piece backshell type, size A shell compatibility, 15pos and HD26pos D-Sub compatibility, 180° cable exit angle, shielded design, round cable type, ABS plastic material, nickel over copper plating, and 4-40 mating screw hardware.

Q: Is the 5748677-2 suitable for applications requiring RoHS compliance?

A: Yes. The 5748677-2 is ROHS3 compliant and is appropriate for applications subject to RoHS regulations.

Q: What is the moisture sensitivity level for these connectors?

A: Both the 748677-2 and 5748677-2 carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Are these parts compatible with both 15-position and HD26-position D-Sub connectors?

A: Yes. Both parts are specified for compatibility with 15pos and HD26pos D-Sub connector sizes.

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