TE Connectivity AMP Connectors 644694-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644694-2 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features a 2-position configuration with 0.100" (2.54mm) pitch spacing, suitable for board-to-cable/wire connections in general-purpose applications. The part operates across a temperature range of -55°C to 105°C with a 250VAC voltage rating.

The 644694-2 carries an obsolete product status, which necessitates identification of active equivalent alternatives to ensure continued availability and supply chain reliability for new designs and production requirements.

Substiute Parts

644694-2

TE Connectivity AMP ConnectorsIn Stock: 762644694-2 Datasheet

Current PartRFQ

3-644694-2

TE Connectivity AMP ConnectorsIn Stock: 7753-644694-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 644694-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 2
• Number of Rows: 1
• Pitch - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Termination: Kinked Pin, Solder
• Operating Temperature Range: -55°C ~ 105°C
• Voltage Rating: 250VAC
• Material Flammability Rating: UL94 V-0
• Series: MTA-100

The substitute part 3-644694-2 maintains full electrical and mechanical compatibility with the original 644694-2 across all critical parameters. The primary distinction between these parts relates to product status and regulatory compliance, not functional performance.

Parameter Comparison

Engineering Selection Recommendations

The 3-644694-2 serves as the direct active equivalent to the obsolete 644694-2. Both parts maintain identical electrical and mechanical specifications across all critical connector parameters, including pitch, position count, mounting configuration, temperature rating, and voltage rating.

The primary distinction between these parts is regulatory and supply status:

644694-2 (Original Part): Carries obsolete product status and RoHS non-compliant designation. This part is no longer actively manufactured or supported by TE Connectivity AMP Connectors.

3-644694-2 (Active Substitute): Maintains active product status with ROHS3 compliance and REACH unaffected certification. This part is the current production equivalent and is recommended for all new designs and ongoing production requirements.

The contact finish differs between the two parts: the original uses Tin-Lead plating while the substitute uses Tin plating. Both finishes maintain the same thickness specification of 150.0µin (3.81µm) and provide equivalent electrical and mechanical performance for general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Are the 644694-2 and 3-644694-2 electrically interchangeable?

A: Yes. Both parts maintain identical electrical specifications including 250VAC voltage rating, operating temperature range of -55°C to 105°C, and current rating that varies by wire gauge. The contact finish difference (Tin-Lead versus Tin) does not affect electrical performance.

Q: Are the 644694-2 and 3-644694-2 mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including 2-position configuration, 0.100" (2.54mm) pitch, through-hole right-angle mounting, kinked pin solder termination, and contact dimensions. Physical installation and PCB layout requirements are identical.

Q: Why does the contact finish differ between these parts?

A: The original 644694-2 uses Tin-Lead plating, while the active substitute 3-644694-2 uses Tin plating. This change reflects industry-wide transition to lead-free materials and RoHS compliance. Both finishes maintain the same thickness and provide equivalent performance for general-purpose applications.

Q: What is the significance of the RoHS compliance difference?

A: The 644694-2 is RoHS non-compliant, while the 3-644694-2 is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the 3-644694-2 is the appropriate selection.

Q: Can I use the 3-644694-2 as a direct replacement in existing designs using 644694-2?

A: Yes. The 3-644694-2 is functionally and mechanically equivalent to the 644694-2 across all critical parameters. No design modifications are required for substitution.

Q: What packaging options are available?

A: The 644694-2 packaging is not specified in available documentation. The 3-644694-2 is supplied in bulk packaging. Contact the supplier for specific packaging requirements or alternative configurations.

Q: Are there any temperature or voltage derating considerations when substituting these parts?

A: No. Both parts operate identically across the -55°C to 105°C temperature range with 250VAC voltage rating. No derating or operational adjustments are necessary.

Q: What is the Moisture Sensitivity Level for these connectors?

A: Both parts carry MSL 1 (Unlimited) designation, indicating no moisture sensitivity restrictions for storage, handling, or use.