TE Connectivity 644695-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644695-2 is a vertical rectangular connector header designed for through-hole mounting applications. This component is a 2-position, single-row 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/wire connections in general-purpose applications.

The 644695-2 carries an obsolete product status. Locating equivalent substitute components ensures design continuity and maintains supply chain reliability for legacy systems and ongoing production requirements.

Substiute Parts

644695-2

TE Connectivity AMP ConnectorsIn Stock: 915644695-2 Datasheet

Current PartRFQ

3-644695-2

TE Connectivity AMP ConnectorsIn Stock: 112603-644695-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 644695-2 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (2)
• Number of rows (1)
• Pitch spacing (0.100" / 2.54mm)
• Mounting type (Through Hole)
• Termination method (Kinked Pin, Solder)
• Contact shape (Square)
• Overall contact length (0.505" / 12.83mm)
• Insulation height (0.100" / 2.54mm)

Electrical Compatibility:

• Operating temperature range (-55°C ~ 105°C)
• Voltage rating (250VAC)
• Contact material (Copper Alloy)
• Insulation material (Thermoplastic)
• Material flammability rating (UL94 V-0)

Functional Compatibility:

• Style (Board to Cable/Wire)
• Shrouding (Unshrouded)
• Contact finish thickness (150.0µin / 3.81µm)
• Insulation color (Natural)
• Applications (General Purpose)

The substitute part 3-644695-2 maintains full equivalence across all mechanical, electrical, and functional parameters. The primary distinction is the contact finish composition and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 3-644695-2 provides full functional and mechanical equivalence to the obsolete 644695-2. Selection between these components is determined by regulatory and supply chain requirements:

For applications requiring RoHS3 compliance: The 3-644695-2 is the appropriate selection. This part carries active product status and meets ROHS3 compliance requirements. The contact finish composition differs (Tin versus Tin-Lead), reflecting the lead-free manufacturing standard. The electrical and mechanical performance characteristics remain equivalent across all specified parameters.

For legacy systems or applications with existing RoHS non-compliant designs: The 644695-2 remains functionally equivalent. However, this part carries obsolete status, which may impact long-term availability and supply chain continuity.

Availability consideration: The 3-644695-2 maintains significantly higher inventory levels (11,199 pieces) compared to the 644695-2 (844 pieces), supporting sustained production and design continuity.

Both parts operate within the identical temperature range (-55°C ~ 105°C), voltage rating (250VAC), and mechanical specifications. The contact finish thickness remains constant at 150.0µin (3.81µm) for both mating and post surfaces.

Frequently Asked Questions (FAQ)

Q: Are the 644695-2 and 3-644695-2 mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including connector type, contact configuration, pitch spacing (0.100" / 2.54mm), mounting type (through-hole), termination method (kinked pin solder), and overall contact dimensions (0.505" / 12.83mm). Physical installation and PCB layout requirements are identical.

Q: What is the difference between the contact finishes?

A: The 644695-2 features Tin-Lead contact finish, while the 3-644695-2 uses Tin finish. Both maintain identical finish thickness (150.0µin / 3.81µm). The Tin finish on the 3-644695-2 reflects lead-free manufacturing compliance (ROHS3). Electrical performance and contact resistance characteristics remain equivalent.

Q: Can the 3-644695-2 be used as a direct replacement in existing designs?

A: Yes. The 3-644695-2 is electrically and mechanically equivalent to the 644695-2 across all specified parameters. The part operates within the same temperature range (-55°C ~ 105°C) and voltage rating (250VAC). Designs using the obsolete 644695-2 can transition to the 3-644695-2 without modification.

Q: Why does the 644695-2 show obsolete status?

A: The 644695-2 carries obsolete product status due to the industry transition to lead-free manufacturing standards. The 3-644695-2 represents the current production equivalent with ROHS3 compliance and active product status.

Q: Are there packaging differences between these parts?

A: The 3-644695-2 is supplied in bulk packaging, while the 644695-2 packaging specification is not provided in the technical data. For specific packaging requirements, consult the respective datasheets or contact the manufacturer directly.

Q: What is the current rating for these connectors?

A: The current rating varies by wire gauge. Specific current capacity is determined by the wire gauge of the connected conductor. Refer to the connector datasheet for current rating tables corresponding to specific wire gauges.

Q: Are both parts suitable for general-purpose applications?

A: Yes. Both the 644695-2 and 3-644695-2 are classified for general-purpose applications. The UL94 V-0 flammability rating and thermoplastic insulation material support standard industrial and commercial use cases within the specified temperature and voltage parameters.