TE Connectivity 1-644465-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644465-2 is a 12-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 tin-lead contact finish, feed-through capability, and polarizing key for secure mating. The part is currently active in production with 1,119 units in stock.

Substitute parts are identified to address specific application requirements, including RoHS compliance status and packaging variations, while maintaining identical electrical and mechanical compatibility.

Substiute Parts

1-644465-2

TE Connectivity AMP ConnectorsIn Stock: 11471-644465-2 Datasheet

Current PartRFQ

4-644465-2

TE Connectivity AMP ConnectorsIn Stock: 7974-644465-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 4-644465-2 is classified as a direct equivalent based on the following critical parameters that determine substitution validity:

Electrical Compatibility Parameters:

• Identical number of positions (12)
• Identical pitch spacing (0.156" / 3.96mm)
• Identical contact type (Female Socket)
• Identical wire gauge rating (18 AWG)
• Identical contact finish thickness (80.0µin / 2.03µm)

Mechanical Compatibility Parameters:

• Identical connector type (Rectangular Receptacle)
• Identical mounting type (Free Hanging In-Line)
• Identical fastening type (Locking Ramp)
• Identical cable termination method (IDC)
• Identical series designation (MTA-156)
• Identical features (Feed Through, Polarizing Key)

Operational Parameters:

• Identical moisture sensitivity level (MSL 1 - Unlimited)
• Both parts are active production status

The primary distinction between the main part and substitute is the contact finish material (tin-lead versus tin) and RoHS compliance status. Both finishes meet the specified thickness requirement and are compatible with the same mating connectors and cable types.

Parameter Comparison

Engineering Selection Recommendations

Part Selection Criteria:

The 1-644465-2 and 4-644465-2 are electrically and mechanically interchangeable for all standard applications requiring a 12-position MTA-156 series IDC receptacle connector rated for 18 AWG cable.

RoHS Compliance Consideration:

Selection between these parts depends on regulatory requirements for the end application. The 4-644465-2 is RoHS Compliant and is the appropriate choice for applications subject to RoHS Directive 2011/65/EU or equivalent regional regulations. The 1-644465-2, being RoHS non-compliant, is suitable for applications without RoHS compliance mandates or for legacy system maintenance where tin-lead contact finish is specified.

Contact Finish Selection:

Both tin-lead (1-644465-2) and tin (4-644465-2) finishes provide equivalent electrical performance and corrosion resistance at the specified 80.0µin thickness. Contact finish selection is driven by application-specific requirements and regulatory constraints rather than functional performance differences.

Availability and Packaging:

The 1-644465-2 is available in higher quantity (1,119 units) compared to the 4-644465-2 (772 units). The 4-644465-2 is supplied in bulk packaging, while the 1-644465-2 packaging specification is not defined in available data.

Frequently Asked Questions (FAQ)

Q: Are the 1-644465-2 and 4-644465-2 connectors physically identical?

A: Yes. Both connectors share identical mechanical dimensions, pitch spacing (0.156"), mounting configuration, and fastening mechanisms. They are physically interchangeable in all mechanical respects.

Q: Can I use the 4-644465-2 as a direct replacement for the 1-644465-2 in my application?

A: The 4-644465-2 is electrically and mechanically compatible with the 1-644465-2 for all standard IDC termination applications with 18 AWG cable. Selection depends on whether your application requires RoHS compliance. If RoHS compliance is required, use the 4-644465-2. If not required, either part is suitable.

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

A: Both finishes are applied at 80.0µin thickness and provide equivalent electrical conductivity and corrosion resistance. The primary difference is regulatory: tin-lead finishes are subject to RoHS restrictions in certain jurisdictions, while tin finishes comply with RoHS Directive 2011/65/EU.

Q: Will the tin finish on the 4-644465-2 affect mating performance with existing tin-lead connectors?

A: No. Both tin and tin-lead finishes are compatible for mating with standard MTA-156 series plug connectors. Contact finish material does not affect mechanical mating or electrical performance in this connector series.

Q: Are both parts suitable for ribbon cable and discrete wire termination?

A: Yes. Both the 1-644465-2 and 4-644465-2 support IDC termination for discrete or ribbon cable at 18 AWG wire gauge.

Q: What is the moisture sensitivity level for these connectors?

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

Q: Can I mix 1-644465-2 and 4-644465-2 connectors in the same assembly?

A: Yes. Both connectors are mechanically and electrically compatible and can be used together in the same assembly without performance degradation.

Q: Which part should I specify for new designs?

A: For new designs, specify the 4-644465-2 if RoHS compliance is required by your application standards or regional regulations. Both parts are active production items suitable for new designs.