TE Connectivity AMP Connectors 641437-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 641437-3 is a 3 Position Rectangular Plug Connector IDC (Insulation Displacement Connector) belonging to the MTA-156 series. This connector is designed for discrete or ribbon cable termination applications with a 0.156" (3.96mm) pitch configuration. The part is currently Active in product status and maintains RoHS Compliant certification with unlimited moisture sensitivity level (MSL 1). Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate specific application requirements such as wire gauge specifications, contact finish requirements, and mounting orientation preferences.

Substiute Parts

641437-3

TE Connectivity AMP ConnectorsIn Stock: 1131641437-3 Datasheet

Current PartRFQ

3-641437-3

TE Connectivity AMP ConnectorsIn Stock: 20213-641437-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 641437-3 rectangular connector is determined by strict alignment of core electrical and mechanical parameters. The following parameters must match or be compatible for a part to function as a direct substitute:

Critical Matching Parameters:

• Connector Type: Plug
• Contact Type: Male Pin
• Number of Positions: 3
• Pitch: 0.156" (3.96mm)
• Number of Rows: 1
• Series: MTA-156
• Cable Termination: IDC
• Wire Type: Discrete or Ribbon Cable

Variable Parameters (Allowable Differences):

• Mounting Type: Free Hanging (In-Line) or Right Angle
• Wire Gauge: Specific AWG ratings
• Contact Finish: Material and thickness specifications
• Color: Cosmetic variation
• Packaging: Bulk or standard packaging
• RoHS Certification Level: RoHS3 Compliant or RoHS Compliant

The substitute part 3-641437-3 maintains all critical matching parameters while introducing allowable variations in mounting type (Right Angle capability), wire gauge specification (22 AWG), contact finish (Tin with defined thickness), and color designation (Red).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (641437-3): The TE Connectivity 641437-3 is suitable for applications requiring a 3-position MTA-156 series IDC plug connector with free hanging in-line mounting. This part maintains Active product status and RoHS Compliant certification, ensuring regulatory compliance and ongoing manufacturer support.

Substitute Part Selection (3-641437-3): The 3-641437-3 serves as a direct functional substitute with enhanced specification documentation. This part provides identical core electrical and mechanical compatibility while offering additional mounting flexibility (Right Angle capability), explicit wire gauge rating (22 AWG), defined contact finish (Tin at 80.0µin thickness), and color specification (Red). The 3-641437-3 carries ROHS3 Compliant certification, representing a higher compliance standard than the primary part. Selection of 3-641437-3 is appropriate when specific wire gauge, contact finish, or mounting orientation requirements are defined in the application design.

Inventory Considerations: The 641437-3 maintains 1060 pieces in stock, while the 3-641437-3 maintains 1961 pieces in stock, providing supply flexibility for production planning.

Frequently Asked Questions (FAQ)

Q: Can the 3-641437-3 substitute for the 641437-3 in all applications?

A: Yes. The 3-641437-3 maintains identical core specifications for connector type, contact type, position count, pitch, row configuration, series designation, cable termination method, and wire type. The substitute part introduces additional specifications (wire gauge, contact finish, color) and mounting flexibility (Right Angle option) without compromising compatibility with applications designed for the 641437-3.

Q: What is the difference in RoHS compliance between these parts?

A: The 641437-3 carries RoHS Compliant certification, while the 3-641437-3 carries ROHS3 Compliant certification. Both certifications indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents a more recent compliance standard. Both parts are suitable for applications requiring RoHS compliance.

Q: Does the 22 AWG wire gauge specification on the 3-641437-3 limit its application?

A: The 3-641437-3 specifies 22 AWG wire gauge, indicating the connector is rated for this wire size. The primary part (641437-3) does not specify wire gauge in its documentation. Applications using 22 AWG discrete or ribbon cable are directly compatible with the 3-641437-3. Applications requiring different wire gauges should reference the specific wire gauge requirements of the application design.

Q: What is the significance of the Tin contact finish on the 3-641437-3?

A: The 3-641437-3 specifies Tin contact finish with a thickness of 80.0µin (2.03µm). Tin provides corrosion resistance and reliable electrical contact characteristics. The primary part (641437-3) does not specify contact finish in its documentation. The Tin finish on the 3-641437-3 is a defined material specification suitable for standard industrial connector applications.

Q: Can the 3-641437-3 be used in right-angle mounting applications?

A: Yes. The 3-641437-3 supports both Free Hanging (In-Line) and Right Angle mounting types, providing design flexibility. The primary part (641437-3) specifies Free Hanging (In-Line) mounting only. Applications requiring right-angle orientation should use the 3-641437-3.

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

A: Yes. Both the 641437-3 and 3-641437-3 support discrete or ribbon cable termination via IDC (Insulation Displacement Connector) technology. Wire type compatibility is identical between both parts.

Q: What is the pitch specification and why is it important?

A: Both parts maintain a 0.156" (3.96mm) pitch, which defines the center-to-center spacing between connector positions. This specification is critical for mechanical compatibility with mating connectors and PCB layouts. The identical pitch ensures direct interchangeability between the 641437-3 and 3-641437-3.

Q: Is the color difference between parts significant for substitution?

A: The 641437-3 does not specify color in its documentation, while the 3-641437-3 specifies Red color. Color is a cosmetic designation and does not affect electrical or mechanical function. Color specification on the 3-641437-3 provides visual identification capability without limiting substitution compatibility.