TE Connectivity 1-644460-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644460-8 is an 18-position rectangular receptacle connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 18 AWG discrete or ribbon cable. This connector features a gold-plated contact finish, closed-end design with polarizing key, and free-hanging in-line mounting configuration.

The 1-644460-8 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure continued availability, maintain design compatibility, and support ongoing production and field service requirements.

Substiute Parts

1-644460-8

TE Connectivity AMP ConnectorsIn Stock: 7711-644460-8 Datasheet

Current PartRFQ

4-644460-8

TE Connectivity AMP ConnectorsIn Stock: 12294-644460-8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-644460-8 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type (Receptacle)
• Number of positions (18)
• Pitch specification (0.156" / 3.96mm)
• Contact type (Female Socket)
• Cable termination method (IDC)
• Wire gauge compatibility (18 AWG)
• Contact finish material (Gold)
• Contact finish thickness (30.0µin / 0.76µm)
• Mounting configuration (Free Hanging In-Line)
• Fastening mechanism (Locking Ramp)
• Design features (Closed End, Polarizing Key)
• Series designation (MTA-156)

Parts meeting all these parameters are classified as direct substitutes and maintain full mechanical and electrical compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The 4-644460-8 is a direct functional equivalent to the 1-644460-8. Both parts share identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, contact configuration, termination method, and wire gauge.

The primary distinction between these parts is product lifecycle status and regulatory compliance:

1-644460-8 (Obsolete): This part carries an obsolete designation and is non-compliant with RoHS requirements. While 753 units remain in current inventory, this part number is no longer in active production.

4-644460-8 (Active): This part maintains active product status with RoHS compliance certification. It is manufactured to current standards and carries higher inventory availability (1149 units). The part number differs only in the leading digit prefix, indicating a manufacturing or packaging variant within the same base product family (644460).

For new designs, ongoing production, and field service applications requiring RoHS compliance, the 4-644460-8 is the appropriate selection. For legacy systems or applications where RoHS compliance is not a requirement, the 1-644460-8 remains functionally equivalent during its available inventory period.

Frequently Asked Questions (FAQ)

Q: Are the 1-644460-8 and 4-644460-8 mechanically interchangeable?

A: Yes. Both parts are mechanically identical. They share the same 18-position configuration, 0.156" pitch, free-hanging in-line mounting, locking ramp fastening, and closed-end polarizing key design. They mount and interface identically in any application designed for either part number.

Q: Are the 1-644460-8 and 4-644460-8 electrically interchangeable?

A: Yes. Both parts are electrically identical. They feature the same female socket contact type, gold contact finish at 30.0µin thickness, IDC termination method, and 18 AWG wire gauge specification. Electrical performance and signal integrity are equivalent.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and regulatory compliance. The 1-644460-8 is obsolete and RoHS non-compliant, while the 4-644460-8 is active and RoHS compliant. The part numbers also reflect different packaging configurations (standard versus bulk). The leading digit prefix distinguishes these variants within the MTA-156 series base product family.

Q: Can I use the 4-644460-8 as a replacement for the 1-644460-8 in existing designs?

A: Yes. The 4-644460-8 is a direct substitute for the 1-644460-8. All mechanical, electrical, and functional parameters are identical. The 4-644460-8 is the recommended choice for new applications and ongoing production due to its active status and RoHS compliance.

Q: What does the packaging difference mean?

A: The 1-644460-8 is supplied in standard packaging, while the 4-644460-8 is supplied in bulk packaging. This affects order quantities and handling but does not impact the connector's performance or compatibility.

Q: Are there any compliance considerations when substituting these parts?

A: Yes. If your application or regulatory environment requires RoHS compliance, the 4-644460-8 must be used. The 1-644460-8 is RoHS non-compliant. Both parts are EAR99 classified and REACH unaffected. Verify your specific compliance requirements before final part selection.

Q: What is the MSL rating for these connectors?

A: Both parts carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity limitations for storage or handling.