TE Connectivity 644540-5 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644540-5 is a 5-position rectangular receptacle connector from the MTA-100 series, designed for IDC (Insulation Displacement Contact) termination with 22 AWG discrete or ribbon cable. This connector features tin-lead contact finish, a 0.100" (2.54mm) pitch, and is configured as a free-hanging in-line or right-angle mounted component with locking ramp fastening. The part is currently active in production with 974 pieces in stock inventory.

Identifying equivalent and substitute parts is necessary when the original specification requires RoHS compliance, when alternative packaging formats are preferred, or when contact finish specifications need adjustment while maintaining full functional compatibility.

Substiute Parts

644540-5

TE Connectivity AMP ConnectorsIn Stock: 1014644540-5 Datasheet

Current PartRFQ

3-644540-5

TE Connectivity AMP ConnectorsIn Stock: 23303-644540-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part (644540-5) and the equivalent part (3-644540-5) is valid based on the following criteria:

Critical Matching Parameters:

• Connector type: Both are receptacles
• Position count: Both are 5-position
• Pitch: Both maintain 0.100" (2.54mm) spacing
• Contact type: Both feature female sockets
• Cable termination: Both use IDC technology
• Wire gauge: Both accommodate 22 AWG
• Mounting configuration: Both support free-hanging in-line and right-angle mounting
• Series designation: Both belong to MTA-100 series
• Contact finish thickness: Both specify 80.0µin (2.03µm)

Flexible Parameters Allowing Substitution:

• Contact finish material: Tin-lead (main part) versus tin (substitute) - both finishes provide equivalent electrical and mechanical performance
• RoHS compliance status: Non-compliant (main part) versus compliant (substitute) - substitution direction depends on regulatory requirements
• Packaging format: Standard versus bulk packaging does not affect functional compatibility

Parameter Comparison

Engineering Selection Recommendations

Selection Criteria Based on Compliance and Status:

The 644540-5 and 3-644540-5 are functionally interchangeable rectangular receptacle connectors within the MTA-100 series. Both parts are active products with confirmed inventory availability.

For RoHS-compliant applications: Select part number 3-644540-5, which carries RoHS Compliant certification. This part is suitable for applications subject to RoHS Directive 2011/65/EU requirements.

For non-RoHS-restricted applications: Either part number is acceptable. The 644540-5 (RoHS non-compliant) offers equivalent electrical and mechanical performance and is available in standard packaging.

Contact Finish Consideration: The tin-lead finish on 644540-5 and the tin finish on 3-644540-5 both provide 80.0µin (2.03µm) thickness and deliver equivalent contact resistance and reliability characteristics. Selection between these finishes is not driven by functional requirements but by application-specific material restrictions or soldering process compatibility.

Packaging Format: The 3-644540-5 is supplied in bulk packaging, while 644540-5 packaging format is not specified. Bulk packaging does not affect connector performance and is selected based on procurement and inventory management requirements.

Both parts maintain identical electrical specifications, mechanical dimensions, and mounting configurations. The choice between them is determined solely by regulatory compliance requirements and packaging preferences.

Frequently Asked Questions (FAQ)

Q: Can 644540-5 and 3-644540-5 be used interchangeably in the same application?

A: Yes, these connectors are functionally interchangeable. Both are 5-position receptacles with identical pitch (0.100"), contact type (female socket), termination method (IDC), and wire gauge (22 AWG). The primary difference is RoHS compliance status and contact finish material, neither of which affects mechanical or electrical compatibility.

Q: What is the difference between tin-lead and tin contact finishes on these connectors?

A: Both finishes are applied at 80.0µin (2.03µm) thickness. Tin-lead finish (644540-5) and tin finish (3-644540-5) provide equivalent contact resistance and reliability. The selection between them depends on application-specific material restrictions or soldering process requirements, not on connector performance.

Q: Which part should I select if my application requires RoHS compliance?

A: Select part number 3-644540-5, which carries RoHS Compliant certification. This part meets RoHS Directive 2011/65/EU requirements and is suitable for applications subject to RoHS regulations.

Q: Are the mounting configurations identical between these two parts?

A: Yes, both 644540-5 and 3-644540-5 support free-hanging in-line and right-angle mounting with locking ramp fastening. PCB mounting compatibility is identical.

Q: Can these connectors accommodate both discrete and ribbon cable?

A: Yes, both parts are specified for discrete or ribbon cable termination using IDC technology at 22 AWG wire gauge.

Q: What is the pitch specification for these connectors?

A: Both connectors maintain a 0.100" (2.54mm) pitch, which determines the center-to-center spacing between the five contact positions.

Q: Are there any differences in moisture sensitivity between these parts?

A: No, both parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: What is the significance of the MTA-100 series designation?

A: MTA-100 is the product series designation from TE Connectivity. Both the main part and substitute belong to this series, ensuring design and performance consistency within the product family.