TE Connectivity AMP Connectors 3-644743-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-644743-2 is a rectangular connector header designed for through-hole mounting applications. This connector features a 7-position, single-row configuration with 0.100" (2.54mm) pitch spacing and is classified as obsolete. The part operates across a temperature range of -55°C to 105°C and carries a UL94 V-0 flammability rating. Due to its obsolete product status, identifying equivalent substitute parts with matching electrical and mechanical specifications is necessary for ongoing design support and component procurement.

Substiute Parts

3-644743-2

TE Connectivity AMP ConnectorsIn Stock: 9193-644743-2 Datasheet

Current PartRFQ

0022474073

MolexIn Stock: 10390022474073 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 3-644743-2 are identified based on strict alignment of the following critical parameters:

Electrical Compatibility Parameters:

• Connector type: Header
• Contact type: Male Pin
• Number of positions: 7
• Number of rows: 1
• Pitch spacing: 0.100" (2.54mm)
• Voltage rating: 250VAC
• Material flammability rating: UL94 V-0

Mechanical Compatibility Parameters:

• Mounting type: Through Hole
• Shrouding: Unshrouded
• Contact shape: Square
• Termination method: Solder

Environmental & Compliance Parameters:

• Operating temperature range: -55°C ~ 105°C
• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The Molex 0022474073 connector satisfies all critical substitution criteria, maintaining identical pitch spacing, position count, contact configuration, and environmental operating specifications. Both connectors are RoHS compliant and feature UL94 V-0 flammability ratings.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0022474073 connector is a direct functional substitute for the obsolete TE Connectivity 3-644743-2. The substitute part maintains all critical electrical and mechanical specifications required for board-to-cable or board-to-board applications.

Compliance Status: Both connectors meet RoHS compliance requirements. The TE Connectivity part carries RoHS Compliant status, while the Molex substitute carries ROHS3 Compliant status, representing an equivalent or enhanced compliance level. Both parts are classified as EAR99 for export control purposes and share the identical HTSUS commodity code.

Product Availability: The TE Connectivity 3-644743-2 is obsolete with limited inventory availability. The Molex 0022474073 is an active product with current manufacturing support and established supply chain availability.

Dimensional and Electrical Compatibility: The substitute part accommodates the same mating pitch (0.100"), position count (7), and contact configuration. Minor variations exist in contact post length (0.135" versus 0.110") and overall contact length (0.560" versus 0.505"), which do not affect functional compatibility in standard through-hole PCB applications. The insulation height difference (0.130" versus 0.100") is within acceptable tolerance for unshrouded header applications.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0022474073 directly replace the TE Connectivity 3-644743-2 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.100"), position count (7), contact type (male pin), and mounting method (through hole). The electrical and mechanical specifications align for direct substitution in board-to-cable and board-to-board applications.

Q: What are the key differences between these two connectors?

A: The primary differences are product status (obsolete versus active), insulation material (thermoplastic versus polyamide/nylon), and minor dimensional variations in contact post length and overall contact length. These differences do not affect functional compatibility in standard applications.

Q: Are both connectors RoHS compliant?

A: Yes. The TE Connectivity 3-644743-2 carries RoHS Compliant status, and the Molex 0022474073 carries ROHS3 Compliant status. Both meet RoHS requirements for restricted substance elimination.

Q: What is the operating temperature range for these connectors?

A: The TE Connectivity 3-644743-2 operates from -55°C to 105°C. Operating temperature specifications for the Molex substitute were not provided in the available data.

Q: Do these connectors have the same flammability rating?

A: Yes. Both connectors carry a UL94 V-0 material flammability rating, indicating compliance with flame retardancy requirements.

Q: What is the voltage rating for the Molex substitute?

A: The voltage rating for the Molex 0022474073 was not specified in the available technical data. The TE Connectivity original part carries a 250VAC voltage rating.

Q: Are there packaging differences between these parts?

A: The TE Connectivity 3-644743-2 packaging specification was not provided. The Molex 0022474073 is supplied in bulk packaging.

Q: What is the moisture sensitivity level for both connectors?

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