TE Connectivity AMP Connectors 749202-3 D-Sub Backshell Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 749202-3 is a 50 Position Two Piece Backshell Connector with 75° cable exit angle and shielding. This component functions as a protective and strain relief accessory for D-Sub connectors in the AMPLIMITE .050 III series. The main part number 749202-3 carries an Obsolete product status, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field service applications.

Substiute Parts

749202-3

TE Connectivity AMP ConnectorsIn Stock: 906749202-3 Datasheet

Current PartRFQ

5749202-3

TE Connectivity AMP ConnectorsIn Stock: 11755749202-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 749202-3 with active alternatives is determined by strict equivalence across all electrical and mechanical parameters. The substitute part 5749202-3 maintains identical functional specifications including 50-position configuration, 75° cable exit angle, shielded design, D-shell size compatibility, round cable type, metal zinc construction with nickel over copper plating, and spring lock features. Both parts are manufactured by TE Connectivity AMP Connectors within the AMPLIMITE .050 III series.

The critical substitution parameters are:

• Number of Positions: 50
• Compatible Shell Size: D
• Compatible D-Sub Size: 50pos and HD78pos
• Cable Exit Angle: 75°
• Shielding: Shielded
• Cable Type: Round
• Material: Metal, Zinc with Nickel over Copper plating
• Accessory Type: Two Piece Backshell
• Series: AMPLIMITE .050 III

Parameter Comparison

Engineering Selection Recommendations

The part 5749202-3 is the direct active equivalent for the obsolete 749202-3. All electrical and mechanical parameters are identical, ensuring functional interchangeability in D-Sub connector assemblies requiring 50-position, 75° shielded backshells within the AMPLIMITE .050 III series.

The 5749202-3 substitute provides additional advantages in regulatory compliance. It carries RoHS Compliant status compared to the RoHS non-compliant status of 749202-3, and REACH Unaffected status compared to REACH Affected status of the original part. These compliance improvements align with current environmental and regulatory requirements for electronic component procurement.

Both parts share identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications, maintaining consistency for export and tariff documentation. The MSL rating of 1 (Unlimited) is identical for both parts, indicating no moisture sensitivity constraints during storage or handling.

For new designs, production builds, and field service replacements, the 5749202-3 is the appropriate selection due to its active product status and enhanced regulatory compliance profile.

Frequently Asked Questions (FAQ)

Q: Can the 5749202-3 be used as a direct replacement for the 749202-3 in existing assemblies?

A: Yes. The 5749202-3 is functionally equivalent to the 749202-3 across all electrical and mechanical parameters. Both parts are 50-position, 75° shielded backshells in the AMPLIMITE .050 III series with identical material composition, plating, and hardware specifications. Direct substitution is supported without design modification.

Q: What is the primary difference between 749202-3 and 5749202-3?

A: The primary differences are product status and regulatory compliance. The 749202-3 is Obsolete with RoHS non-compliant and REACH Affected status. The 5749202-3 is Active with RoHS Compliant and REACH Unaffected status. All functional specifications remain identical.

Q: Are there packaging differences between these parts?

A: The 749202-3 packaging specification is not provided in the available data. The 5749202-3 is supplied in Box packaging. Confirm packaging requirements with your procurement specifications.

Q: Do both parts support the same D-Sub connector sizes?

A: Yes. Both 749202-3 and 5749202-3 are compatible with 50pos and HD78pos D-Sub sizes with D-shell configuration. Cable exit angle is 75° for both parts.

Q: Are there any material or plating differences?

A: No. Both parts use identical material composition (Metal, Zinc) with Nickel over Copper plating. Corrosion resistance and electrical properties are equivalent.

Q: What is the MSL rating for these backshells?

A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity constraints. These components do not require special moisture control during storage or handling.

Q: Are export classifications identical for both parts?

A: Yes. Both 749202-3 and 5749202-3 share identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications, maintaining consistency for export documentation and tariff purposes.