TE Connectivity AMP Connectors 644695-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 644695-3 is a rectangular connector header designed for through-hole mounting applications. This connector is a vertical 3-position header with 0.100" (2.54mm) pitch spacing, classified within the MTA-100 series. The part features male pin contacts with kinked pin solder termination, suitable for board-to-cable and board-to-wire interconnections in general purpose applications.

The 644695-3 carries an obsolete product status, which necessitates identification of active equivalent components for ongoing design support and procurement continuity. Substitute parts must maintain electrical and mechanical compatibility across all critical parameters including contact configuration, pitch spacing, mounting type, and environmental ratings.

Substiute Parts

644695-3

TE Connectivity AMP ConnectorsIn Stock: 681644695-3 Datasheet

Current PartRFQ

3-644695-3

TE Connectivity AMP ConnectorsIn Stock: 152943-644695-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 644695-3 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Contact type (Male Pin)
• Number of positions (3)
• Pitch spacing (0.100" / 2.54mm)
• Voltage rating (250VAC)
• Operating temperature range (-55°C ~ 105°C)

Mechanical Compatibility Parameters:

• Connector type (Header)
• Mounting type (Through Hole)
• Termination method (Kinked Pin, Solder)
• Number of rows (1)
• Contact shape (Square)
• Insulation material (Thermoplastic)

Environmental & Compliance Parameters:

• Material flammability rating (UL94 V-0)
• Moisture sensitivity level (1 - Unlimited)

The substitute part 3-644695-3 maintains full equivalence across all electrical, mechanical, and environmental parameters. The primary distinction between the main part and its substitute is product status (obsolete versus active) and contact finish composition (Tin-Lead versus Tin), with both finishes meeting the same thickness specification of 150.0µin (3.81µm).

Parameter Comparison

Engineering Selection Recommendations

The 3-644695-3 is the direct equivalent substitute for the obsolete 644695-3. Both components are manufactured by TE Connectivity AMP Connectors within the MTA-100 series and maintain identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration: The 644695-3 is classified as obsolete, while the 3-644695-3 maintains active product status. For new designs and ongoing procurement, the 3-644695-3 is the appropriate selection to ensure long-term component availability and supply chain continuity.

Compliance Advantage: The substitute part 3-644695-3 achieves ROHS3 compliance, whereas the main part is RoHS non-compliant. This distinction is significant for applications subject to regulatory requirements or customer specifications mandating lead-free components. The contact finish difference (Tin versus Tin-Lead) reflects this compliance improvement while maintaining equivalent electrical performance and contact thickness specifications.

Functional Equivalence: All electrical parameters, mechanical dimensions, environmental ratings, and operational characteristics remain identical between the two parts. The connector maintains the same 3-position, 0.100" pitch configuration, through-hole mounting capability, and -55°C to 105°C operating temperature range. Both parts are suitable for general purpose board-to-cable and board-to-wire applications with 250VAC voltage rating and UL94 V-0 flammability certification.

Frequently Asked Questions (FAQ)

Q: Can the 3-644695-3 be used as a direct replacement for the 644695-3 in existing designs?

A: Yes. The 3-644695-3 is electrically and mechanically equivalent to the 644695-3. All contact configurations, pitch spacing, mounting dimensions, and electrical ratings are identical. The substitute part can be used in direct replacement applications without design modification.

Q: What is the difference between the Tin-Lead finish on the 644695-3 and the Tin finish on the 3-644695-3?

A: Both finishes meet the same thickness specification of 150.0µin (3.81µm) and provide equivalent electrical performance. The Tin finish on the 3-644695-3 is lead-free, which aligns with ROHS3 compliance requirements. The Tin-Lead finish on the 644695-3 is a traditional plating composition. Both finishes are suitable for solder termination applications.

Q: Why is the 644695-3 listed as obsolete?

A: The 644695-3 carries an obsolete product status designation. The 3-644695-3 is the active equivalent part maintained by TE Connectivity AMP Connectors for ongoing production and supply. For new procurement and design work, the 3-644695-3 should be specified.

Q: Are there any packaging differences between the 644695-3 and 3-644695-3?

A: The 644695-3 packaging information is not specified in the available data. The 3-644695-3 is supplied in bulk packaging. Specific packaging requirements should be confirmed with the component supplier based on application needs.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. The RoHS compliance difference reflects the contact finish composition (Tin versus Tin-Lead) but does not affect electrical performance, voltage rating, current capacity, or operating temperature range. Both parts maintain identical electrical specifications.

Q: What is the current rating for these connectors?

A: The current rating varies by wire gauge. The connector itself does not have a fixed current rating; the maximum current capacity is determined by the wire gauge of the conductors being terminated. Refer to wire gauge specifications and solder termination guidelines for specific current capacity information.

Q: Can these connectors be used in high-temperature applications?

A: Yes. Both the 644695-3 and 3-644695-3 are rated for operating temperatures from -55°C to 105°C. This temperature range is suitable for general purpose applications within these thermal limits.

Q: Is the 3-644695-3 suitable for applications requiring lead-free components?

A: Yes. The 3-644695-3 features a Tin contact finish, which is lead-free and compliant with ROHS3 requirements. This makes it suitable for applications and customers requiring lead-free component specifications.