TE Connectivity 749916-2 D-Sub Backshell Equivalent & Substitute Parts

Part Overview

The TE Connectivity 749916-2 is a 37-position hinged backshell connector belonging to the AMPLIMITE Quik-Snap series. This D-Sub accessory is designed for use with 37-position and HD62-position D-Sub connectors, featuring a polypropylene construction with dual cable exit angles of 120° and 180°. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing procurement and system maintenance.

Key Parameters

Parameter	Specification
Manufacturer Part Number	749916-2
Manufacturer	TE Connectivity AMP Connectors
Category	D-Sub, D-Shaped Connectors
Series	AMPLIMITE Quik-Snap
Accessory Type	Hinged Backshell
Number of Positions	37
Compatible Shell Size	C
Compatible D-Sub Size	37pos and HD62pos
Cable Type	Round
Cable Exit Angles	120°, 180°
Shielding	Unshielded
Primary Material	Polypropylene (PP)
Color	Black
Hardware	Assembly Hardware, Strain Relief
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 749916-2 backshell connector is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 37
Compatible Shell Size: C
Compatible D-Sub Size: 37pos and HD62pos
Cable Type: Round
Cable Exit Angles: 120°, 180°
Shielding: Unshielded
Primary Material: Polypropylene (PP)
Color: Black
Accessory Type: Hinged Backshell
Series: AMPLIMITE Quik-Snap

The substitute part 5749916-2 maintains complete electrical and mechanical compatibility with the original 749916-2 specification. Both parts are manufactured by TE Connectivity AMP Connectors and share identical functional characteristics. The primary distinction between these parts is packaging configuration and regulatory compliance status.

Parameter Comparison

Parameter	749916-2 (Original)	5749916-2 (Substitute)	Compatibility
Manufacturer Part Number	749916-2	5749916-2	Direct Equivalent
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Series	AMPLIMITE Quik-Snap	AMPLIMITE Quik-Snap	Identical
Accessory Type	Hinged Backshell	Hinged Backshell	Identical
Number of Positions	37	37	Identical
Compatible Shell Size	C	C	Identical
Compatible D-Sub Size	37pos and HD62pos	37pos and HD62pos	Identical
Cable Type	Round	Round	Identical
Cable Exit Angles	120°, 180°	120°, 180°	Identical
Shielding	Unshielded	Unshielded	Identical
Primary Material	Polypropylene (PP)	Polypropylene (PP)	Identical
Color	Black	Black	Identical
Hardware	Assembly Hardware, Strain Relief	Assembly Hardware, Strain Relief	Identical
Packaging	Unspecified	Bag	Different
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Different
Product Status	Obsolete	Obsolete	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8538.90.8180	8538.90.8180	Identical

Engineering Selection Recommendations

749916-2 (Original Part): The original 749916-2 is classified as obsolete and carries RoHS non-compliant status. This part remains suitable for legacy system maintenance and repair applications where existing inventory is available. Current stock of 985 pieces is available.

5749916-2 (Substitute Part): The 5749916-2 is the direct functional equivalent and is recommended for new procurement activities. This substitute maintains complete electrical and mechanical compatibility while offering ROHS3 compliance, addressing regulatory requirements for new system designs and manufacturing. The substitute is supplied in bag packaging and 773 pieces are currently available in inventory.

Both parts are classified as obsolete by the manufacturer. Selection between these parts should be based on regulatory compliance requirements and packaging specifications for the intended application. The electrical and mechanical performance characteristics are identical.

Frequently Asked Questions (FAQ)

Q: Are the 749916-2 and 5749916-2 electrically and mechanically interchangeable?

A: Yes. Both parts are 37-position hinged backshell connectors with identical electrical and mechanical specifications. They share the same cable exit angles (120°, 180°), compatible D-Sub sizes (37pos and HD62pos), shell size (C), material composition (polypropylene), and hardware configuration.

Q: What is the difference between these two parts?

A: The primary differences are packaging configuration and regulatory compliance status. The 749916-2 is supplied in unspecified packaging and is RoHS non-compliant. The 5749916-2 is supplied in bag packaging and is ROHS3 compliant.

Q: Which part should be selected for new designs?

A: The 5749916-2 is recommended for new designs due to ROHS3 compliance, which aligns with current regulatory standards for electronic component manufacturing and procurement.

Q: Can the 749916-2 be used in applications requiring RoHS compliance?

A: No. The 749916-2 is RoHS non-compliant and is not suitable for applications with RoHS compliance requirements. The 5749916-2 must be used in such applications.

Q: Are both parts compatible with 37-position and HD62-position D-Sub connectors?

A: Yes. Both the 749916-2 and 5749916-2 are compatible with 37-position and HD62-position D-Sub connectors with shell size C.

Q: What cable types are supported by these backshells?

A: Both parts are designed for round cable types with dual cable exit angle options of 120° and 180°.

Q: Is shielding provided by these backshells?

A: No. Both the 749916-2 and 5749916-2 are unshielded backshell connectors.

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

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

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