TE Connectivity 644760-9 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644760-9 is a shrouded rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 9-position connector operates within the MTA-156 series and features a 0.156" (3.96mm) pitch with male pin contacts and friction lock fastening. The part is classified as obsolete, necessitating identification of active equivalent components that maintain identical electrical and mechanical specifications for continued system support and new design implementations.

Substiute Parts

644760-9

TE Connectivity AMP ConnectorsIn Stock: 1206644760-9 Datasheet

Current PartRFQ

3-644760-9

TE Connectivity AMP ConnectorsIn Stock: 10563-644760-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 644760-9 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 9
• Voltage Rating: 600VAC
• Operating Temperature Range: -55°C ~ 105°C
• Contact Type: Male Pin
• Contact Material: Copper Alloy

Mechanical Compatibility Parameters:

• Connector Type: Header
• Mounting Type: Through Hole
• Shrouding: Shrouded - 1 Wall
• Termination: Solder
• Fastening Type: Friction Lock
• Contact Shape: Circular
• Insulation Material: Thermoplastic, Glass Filled
• Material Flammability Rating: UL94 V-0

Dimensional Parameters:

• Contact Length - Mating: 0.400" (10.16mm)
• Contact Length - Post: 0.175" (4.45mm)
• Overall Contact Length: 0.700" (17.78mm)
• Insulation Height: 0.425" (10.80mm)

The substitute part 3-644760-9 maintains complete equivalence across all specified electrical and mechanical parameters, with the primary distinction being active product status and RoHS compliance.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 3-644760-9 serves as the direct active equivalent to the obsolete 644760-9 model. Both components share identical electrical and mechanical specifications across all critical parameters including connector pitch, position count, voltage rating, operating temperature range, and physical dimensions.

The primary distinction between these parts is product lifecycle status and regulatory compliance. The 644760-9 is classified as obsolete and carries RoHS non-compliant status, while the 3-644760-9 maintains active product status with full RoHS compliance. The contact finish on the post differs between the two parts: the original uses Tin-Lead while the substitute uses Tin. This difference does not affect functional compatibility or electrical performance.

For new designs and ongoing system support where RoHS compliance is required, the 3-644760-9 is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, either part satisfies the electrical and mechanical requirements. The identical MTA-156 series designation, connector geometry, and contact specifications ensure direct interchangeability in all board-to-cable/wire applications.

Frequently Asked Questions (FAQ)

Q: Can the 3-644760-9 directly replace the 644760-9 in existing assemblies?

A: Yes. The 3-644760-9 maintains complete electrical and mechanical equivalence to the 644760-9. All critical parameters including pitch, position count, contact dimensions, voltage rating, and operating temperature range are identical. The parts are directly interchangeable.

Q: What is the significance of the contact finish difference between Tin-Lead and Tin?

A: The contact finish difference reflects the RoHS compliance transition. Tin-Lead finish on the original part is associated with non-compliant status, while Tin finish on the substitute reflects RoHS compliance. Both finishes provide equivalent electrical conductivity and contact reliability for the specified voltage and current ratings.

Q: Why is the 644760-9 classified as obsolete?

A: The obsolete status reflects the product lifecycle transition within TE Connectivity's connector portfolio. The 3-644760-9 represents the active equivalent that maintains all functional specifications while meeting current regulatory requirements.

Q: Are there packaging differences between these parts?

A: The 644760-9 packaging specification is not provided in the technical data. The 3-644760-9 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What applications are these connectors suitable for?

A: Both parts are rated for General Purpose and Industrial applications. The 600VAC voltage rating, UL94 V-0 flammability rating, and -55°C to 105°C operating temperature range support industrial control systems, instrumentation, and general-purpose board-to-cable interconnections.

Q: Is the 3-644760-9 available in the same inventory quantities as the 644760-9?

A: Inventory levels vary. The 644760-9 shows 1108 pieces in stock, while the 3-644760-9 shows 1042 pieces in stock. Confirm current availability with your supplier for your specific procurement timeline.

Q: What does the MTA-156 series designation indicate?

A: MTA-156 is the TE Connectivity series designation for connectors with 0.156" (3.96mm) pitch. This series specification ensures compatibility across all MTA-156 mating components and accessories.

Q: Are there any restrictions on the current rating for these connectors?

A: Current rating varies by wire gauge. The connector itself is rated for 600VAC operation. Consult the wire gauge specifications and mating cable specifications to determine the maximum current capacity for your specific application.