TE Connectivity 641972-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641972-2 is a shrouded rectangular connector header from the Universal MATE-N-LOK series, designed for through-hole board-to-cable/wire applications. This 9-position connector features a 0.250" (6.35mm) pitch configuration with male pin contacts and is rated for 12A at 600VAC operation across a temperature range of -40°C to 105°C. The connector is currently active in production with 621 pieces available in new original inventory. Substitute parts are identified to address packaging variations, compliance requirements, and inventory availability while maintaining electrical and mechanical compatibility.

Substiute Parts

641972-2

TE Connectivity AMP ConnectorsIn Stock: 661641972-2 Datasheet

Current PartRFQ

641972-3

TE Connectivity AMP ConnectorsIn Stock: 2411641972-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 641972-3 is electrically and mechanically equivalent to the main part 641972-2 based on the following critical parameters that determine substitution compatibility:

Electrical Equivalence Parameters:

• Identical pitch spacing: 0.250" (6.35mm)
• Identical number of positions: 9
• Identical row configuration: 3 rows
• Identical current rating: 12A
• Identical voltage rating: 600VAC
• Identical operating temperature range: -40°C to 105°C
• Identical contact material: Phosphor Bronze
• Identical contact shape: Circular

Mechanical Equivalence Parameters:

• Identical connector type: Header
• Identical contact type: Male Pin
• Identical mounting type: Through Hole
• Identical shrouding: Shrouded - 4 Wall
• Identical termination method: Solder
• Identical fastening type: Locking Ramp
• Identical insulation material: Polyamide (PA), Nylon
• Identical insulation height: 0.550" (13.97mm)
• Identical contact post length: 0.155" (3.94mm)
• Identical flammability rating: UL94 V-0

Packaging and Compliance Variations: The substitute part differs in packaging format (Bulk versus standard) and RoHS compliance status, with 641972-3 offering RoHS Compliant certification. The contact finish on the post differs between tin-lead (641972-2) and tin (641972-3), while mating contact finish remains identical at gold plating.

Parameter Comparison

Engineering Selection Recommendations

Both the 641972-2 and 641972-3 are active production parts from TE Connectivity's Universal MATE-N-LOK series and are suitable for direct substitution in applications requiring 9-position rectangular connector headers with 0.250" pitch spacing.

641972-2 Selection Criteria:

• Standard packaging format preferred
• Applications where tin-lead post finish is specified
• Inventory requirements of 621 units or fewer per order

641972-3 Selection Criteria:

• RoHS Compliant certification required for end-use application
• Bulk packaging format acceptable
• Higher inventory availability (2316 units) for larger production runs
• Tin post finish acceptable in application design
• Preferred for new designs and compliance-driven procurement

Both parts maintain identical electrical performance, mechanical compatibility, and thermal operating characteristics. The primary differentiators are packaging format, RoHS compliance status, and post contact finish composition. Selection between these parts should be based on specific application compliance requirements and packaging logistics.

Frequently Asked Questions (FAQ)

Q: Are 641972-2 and 641972-3 directly interchangeable in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical pitch spacing (0.250"), position count (9), row configuration (3), current rating (12A), voltage rating (600VAC), operating temperature range (-40°C to 105°C), and physical dimensions. The primary differences are packaging format and RoHS compliance status, which do not affect functional interchangeability in the connector interface.

Q: What is the difference in contact finish between these parts?

A: The mating contact finish is identical (gold plating at 30.0µin thickness) for both parts. The difference exists only in the post contact finish: 641972-2 uses tin-lead, while 641972-3 uses tin. This distinction affects soldering characteristics and compliance with RoHS regulations but does not impact electrical performance or mating compatibility.

Q: Why does 641972-3 have RoHS Compliant status while 641972-2 shows "Not applicable"?

A: The RoHS status difference reflects the contact finish composition. The tin-lead post finish in 641972-2 contains lead, which places it outside RoHS scope for certain applications. The tin post finish in 641972-3 is RoHS Compliant. Both parts are from the same manufacturer and series, with the compliance difference driven by material composition rather than design or performance.

Q: Can I use 641972-3 in applications originally designed for 641972-2?

A: Yes. The parts are functionally equivalent for all electrical and mechanical parameters. If the original design does not explicitly require tin-lead post finish or has no RoHS restrictions, 641972-3 is a suitable direct replacement. Verify that your application's soldering process is compatible with tin post finish if transitioning from tin-lead.

Q: What is the significance of the packaging difference between these parts?

A: 641972-2 is supplied in standard packaging, while 641972-3 is supplied in bulk packaging. This affects order quantities, storage, and handling but does not impact the connector's electrical or mechanical performance. Bulk packaging typically accommodates larger production volumes and may offer cost advantages for high-volume applications.

Q: Are there any temperature or current rating differences between these parts?

A: No. Both parts are rated identically at 12A current capacity and operate across the same temperature range of -40°C to 105°C. They share identical UL94 V-0 flammability ratings and moisture sensitivity levels (MSL 1 - Unlimited).

Q: Which part should I specify for new product designs?

A: For new designs, 641972-3 is the recommended choice due to its RoHS Compliant status, which aligns with current regulatory requirements and industry standards. The higher inventory availability (2316 units versus 621 units) also supports production scalability. Specify 641972-2 only if your application explicitly requires tin-lead post finish or has legacy design constraints.