TE Connectivity 641438-4 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 641438-4 is a 4-position rectangular plug connector from the MTA-156 series, designed for IDC (Insulation Displacement Contact) termination with 24 AWG discrete or ribbon cable. This connector features tin-lead contact finish and is classified as a closed-end plug with male pin contacts. The part is currently active in production with 743 pieces available in new original inventory.

Substitute parts are identified to address specific application requirements including RoHS compliance status, packaging preferences, and contact finish specifications while maintaining electrical and mechanical compatibility.

Substiute Parts

641438-4

TE Connectivity AMP ConnectorsIn Stock: 853641438-4 Datasheet

Current PartRFQ

3-641438-4

TE Connectivity AMP ConnectorsIn Stock: 24373-641438-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between the main part 641438-4 and the equivalent part 3-641438-4 is based on strict electrical and mechanical compatibility criteria. Both parts share identical specifications across all critical parameters that determine functional interchangeability:

Key Parameters for Substitution Compatibility:

• Connector type, position count, and pitch (0.156")
• Contact type and gender (Male Pin)
• Cable termination method (IDC)
• Wire gauge and wire type compatibility (24 AWG, Discrete or Ribbon Cable)
• Contact finish thickness (80.0µin / 2.03µm)
• Closed-end feature and color (White)
• Moisture sensitivity level (MSL 1)
• Series designation (MTA-156)

The primary differences between these parts are contact finish composition (tin-lead versus tin), RoHS compliance status, packaging format, and HTSUS classification. These differences do not affect electrical or mechanical performance in applications where the specified parameters are met.

Parameter Comparison

Engineering Selection Recommendations

641438-4 Selection Criteria: The original part 641438-4 is suitable for applications where tin-lead contact finish is specified or where RoHS non-compliance is acceptable. This part maintains active production status and is available in moderate inventory quantities.

3-641438-4 Selection Criteria: The substitute part 3-641438-4 is the appropriate selection for applications requiring ROHS3 compliance. This part features tin contact finish instead of tin-lead, maintains identical electrical and mechanical specifications, and is available in significantly higher inventory quantities (2359 pieces). Both parts are active products from the same manufacturer and series.

Compliance Considerations: Applications subject to RoHS3 regulations must use part 3-641438-4. Applications with no RoHS compliance requirement may use either part based on availability and contact finish requirements. Both parts carry identical moisture sensitivity level (MSL 1) and are classified under EAR99 export control.

Frequently Asked Questions (FAQ)

Q: Are 641438-4 and 3-641438-4 electrically interchangeable?

A: Yes. Both parts share identical electrical specifications including connector type, position count, pitch, contact type, cable termination method, wire gauge, and contact finish thickness. They are electrically interchangeable in applications where the specified parameters are met.

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

A: The main part 641438-4 features tin-lead contact finish, while the substitute 3-641438-4 features tin contact finish. Both maintain the same contact finish thickness of 80.0µin (2.03µm). The contact finish type does not affect mechanical compatibility or IDC termination performance.

Q: Which part should I select for RoHS-compliant applications?

A: Part 3-641438-4 is ROHS3 compliant and must be used for applications subject to RoHS regulations. Part 641438-4 is RoHS non-compliant and is not suitable for RoHS-regulated applications.

Q: Does packaging format affect connector performance?

A: No. The packaging difference (unspecified for 641438-4 versus bulk for 3-641438-4) does not affect electrical or mechanical performance. Packaging format is a logistics consideration only.

Q: Can I use these connectors with both discrete and ribbon cable?

A: Yes. Both parts support discrete or ribbon cable with 24 AWG wire gauge. The IDC termination method accommodates both cable types.

Q: Are there any mounting or orientation differences between these parts?

A: No. Both parts feature identical mounting specifications: free hanging (in-line) and right angle configurations. They are mechanically interchangeable in all mounting applications.

Q: What is the significance of the 0.156" pitch specification?

A: The 0.156" (3.96mm) pitch is the center-to-center distance between adjacent contact positions. This specification ensures mechanical compatibility with MTA-156 series receptacles and mating connectors. Both parts maintain this identical pitch.

Q: Is inventory availability a factor in part selection?

A: Inventory availability may influence procurement decisions. Part 3-641438-4 has higher inventory (2359 pieces) compared to 641438-4 (743 pieces). However, inventory levels are subject to change and should be verified at the time of procurement.