TE Connectivity 747971-3 D-Sub Jackscrew Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 747971-3 is a slotted jackscrew accessory designed for the AMPLIMITE Series of D-Sub, D-shaped connectors. This component functions as a mounting screw with #4-40 thread specification and is used to secure connector assemblies. The 747971-3 is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. Substitute parts must maintain identical mechanical and electrical specifications to ensure proper fit and function within AMPLIMITE Series connector assemblies.

Key Parameters

Parameter	Specification
Thread Size	4-40
Length - Threaded Portion Below Head	0.209" (5.31mm)
Length - Below Head	0.407" (10.34mm)
Accessory Type	Jackscrew, Slotted
Series Compatibility	AMPLIMITE Series
Connector Category	D-Sub, D-Shaped Connectors

Substitute Part Grouping Explanation

Substitution of the 747971-3 is determined by strict equivalence across the following critical parameters:

Thread Size: Must be #4-40 to ensure proper engagement with AMPLIMITE Series connector mounting points
Length - Threaded Portion Below Head: Must be 0.209" (5.31mm) for correct screw penetration depth
Length - Below Head: Must be 0.407" (10.34mm) to maintain proper assembly geometry
Accessory Type: Must be a slotted jackscrew to match the original design interface
Series Compatibility: Must be designated for AMPLIMITE Series connectors
Connector Category: Must be classified as D-Sub, D-Shaped Connector accessory

The substitute part 5747971-3 meets all these parameters and is therefore a direct functional equivalent.

Parameter Comparison

Parameter	747971-3 (Main Part)	5747971-3 (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	AMPLIMITE	Identical
Accessory Type	Jackscrew, Slotted	Jackscrew, Slotted	Identical
Thread Size	4-40	4-40	Identical
Length - Threaded Portion Below Head	0.209" (5.31mm)	0.209" (5.31mm)	Identical
Length - Below Head	0.407" (10.34mm)	0.407" (10.34mm)	Identical
Product Status	Obsolete	Active	Substitute is Active
RoHS Status	RoHS non-compliant	RoHS Compliant	Substitute is Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Affected	Substitute has REACH Compliance
ECCN	EAR99	EAR99	Identical

Engineering Selection Recommendations

The 5747971-3 is the direct substitute for the obsolete 747971-3. Selection of the 5747971-3 is based on the following engineering factors:

Product Status: The 747971-3 is obsolete and no longer manufactured. The 5747971-3 is active and currently in production, ensuring long-term availability and supply chain continuity.

Regulatory Compliance: The 5747971-3 is RoHS Compliant, meeting current environmental and hazardous substance restrictions. The 5747971-3 is also REACH Affected, indicating compliance with European chemical safety regulations. These certifications align with modern procurement standards and regulatory requirements.

Mechanical and Electrical Equivalence: All critical dimensions, thread specifications, and functional parameters are identical between the two parts. The 5747971-3 maintains the same 4-40 thread size, threaded length of 0.209" (5.31mm), and overall length below head of 0.407" (10.34mm).

Series Compatibility: Both parts are designated for AMPLIMITE Series D-Sub connectors, ensuring direct compatibility with existing connector assemblies and mounting interfaces.

The 5747971-3 is the recommended substitute for all applications currently using or requiring the 747971-3.

Frequently Asked Questions (FAQ)

Q: Can the 5747971-3 be used as a direct replacement for the 747971-3 in AMPLIMITE Series connectors?

A: Yes. The 5747971-3 is a direct functional equivalent. All critical mechanical parameters—thread size (#4-40), threaded portion length (0.209" / 5.31mm), and overall length below head (0.407" / 10.34mm)—are identical. Both parts are slotted jackscrews designed for AMPLIMITE Series D-Sub connectors.

Q: What is the primary reason to substitute the 747971-3 with the 5747971-3?

A: The 747971-3 is obsolete and no longer manufactured. The 5747971-3 is an active product currently in production, providing reliable supply chain availability and long-term procurement viability.

Q: Are there any compliance differences between the 747971-3 and 5747971-3?

A: Yes. The 5747971-3 is RoHS Compliant and REACH Affected, whereas the 747971-3 is RoHS non-compliant and REACH Unaffected. The 5747971-3 meets current environmental and chemical safety regulations required in modern manufacturing and procurement standards.

Q: Does packaging differ between these parts?

A: The 747971-3 packaging is not specified in the available data. The 5747971-3 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Are the moisture sensitivity levels the same?

A: Yes. Both the 747971-3 and 5747971-3 have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for either part.

Q: What is the base product number for the 5747971-3?

A: The base product number for the 5747971-3 is 5747971. This designation indicates the product family and variant structure within the TE Connectivity AMP Connectors catalog.

Q: Are both parts classified under the same export control category?

A: Yes. Both the 747971-3 and 5747971-3 are classified under ECCN EAR99, indicating the same export control status.

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