TE Connectivity AMP Connectors 4-6437276-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-6437276-3 is a 100 Position Female Card Edge Connector with dual edge configuration, 0.100" (2.54mm) pitch, and gold-plated copper alloy contacts. This connector is classified as Obsolete, necessitating identification of active equivalent parts for ongoing procurement and system integration requirements. The dual-row, through-hole solder termination design serves applications requiring high-density edge card interconnection with reliable contact engagement.

Substiute Parts

4-6437276-3

TE Connectivity AMP ConnectorsIn Stock: 10144-6437276-3 Datasheet

Current PartRFQ

745-100-520-206

Mercury United Electronics, Inc.In Stock: 912745-100-520-206 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 4-6437276-3 with the Mercury United Electronics 745-100-520-206 is based on alignment of the following critical parameters:

Matching Parameters:

• Number of Positions: 100
• Number of Rows: 2
• Pitch: 0.100" (2.54mm)
• Gender: Female
• Card Type: Non Specified - Dual Edge
• Read Out: Dual
• Mounting Type: Through Hole
• Contact Material: Copper Alloy
• Contact Finish: Gold
• Contact Finish Thickness: 30.0µin (0.76µm)
• Color: Black
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8536.69.4040

Differing Parameters:

• Termination: Solder (main part) vs. Press-Fit (substitute)
• Card Thickness: Not specified (main part) vs. 0.054" ~ 0.070" (1.37mm ~ 1.78mm) (substitute)
• Material - Insulation: Thermoplastic, Glass Filled (main part) vs. Polyester Thermoplastic (substitute)
• Operating Temperature: Not specified (main part) vs. -40°C ~ 105°C (substitute)
• Product Status: Obsolete (main part) vs. Active (substitute)
• Contact Type: Not specified (main part) vs. Cantilever (substitute)

The substitute part maintains electrical and mechanical compatibility through identical position count, pitch, row configuration, and contact specifications. The primary distinction lies in termination methodology and insulation material composition.

Parameter Comparison

Engineering Selection Recommendations

The Mercury United Electronics 745-100-520-206 serves as the active equivalent for the obsolete TE Connectivity 4-6437276-3. Selection of the substitute part is supported by the following factors:

Product Status: The Mercury part maintains Active status, ensuring continued availability and manufacturing support. The TE Connectivity part is classified as Obsolete, limiting procurement options for new applications and system replacements.

Compliance and Certifications: Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, confirming regulatory equivalence. The Mercury part carries RoHS3 Compliance and REACH Unaffected status, providing enhanced environmental and regulatory documentation compared to the TE Connectivity part's Vendor Undefined REACH status.

Electrical and Mechanical Compatibility: The substitute part maintains identical specifications for position count (100), row configuration (2), pitch (0.100"), contact material (Copper Alloy), contact finish (Gold at 30.0µin thickness), and gender (Female). These parameters ensure functional interchangeability in dual-edge card edge connector applications.

Termination Methodology: The substitute employs Press-Fit termination versus the original Solder termination. This difference requires PCB design accommodation but provides advantages in assembly process flexibility and rework capability.

Insulation Material: The substitute utilizes Polyester Thermoplastic insulation compared to the original Thermoplastic, Glass Filled composition. Both materials support the MSL 1 (Unlimited) moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine substitution compatibility between the TE Connectivity 4-6437276-3 and Mercury United Electronics 745-100-520-206?

A: The critical parameters are: 100 position count, 2-row configuration, 0.100" (2.54mm) pitch, Female gender, Dual edge card type, Dual read-out, Through Hole mounting, Copper Alloy contact material, Gold contact finish at 30.0µin thickness, and Black color. These parameters ensure electrical and mechanical compatibility in card edge connector applications.

Q: How does the termination difference between Solder and Press-Fit affect component selection?

A: The original part uses Solder termination, requiring wave or reflow soldering processes. The substitute uses Press-Fit termination, which engages with PCB plated through-holes through mechanical compression. This difference requires PCB design verification to confirm plated hole specifications and tolerance stack-up compatibility. Both termination methods achieve equivalent electrical connection reliability when properly implemented.

Q: Are there packaging differences between these parts?

A: The TE Connectivity part packaging is not specified in available documentation. The Mercury United Electronics substitute is supplied in Tray packaging. Packaging format may affect inventory management and assembly line integration but does not impact electrical or mechanical performance.

Q: What is the significance of the Product Status difference?

A: The TE Connectivity part is classified as Obsolete, indicating discontinued manufacturing and limited availability. The Mercury part is Active, confirming ongoing production and supply chain availability. For new designs or system replacements, the Active status of the substitute part ensures long-term procurement viability.

Q: Do the insulation material differences affect performance?

A: The original part uses Thermoplastic, Glass Filled insulation; the substitute uses Polyester Thermoplastic. Both materials support MSL 1 (Unlimited) moisture sensitivity classification. The material difference does not affect electrical performance or moisture resistance in standard operating environments. Material selection reflects manufacturing process differences between manufacturers.

Q: What compliance certifications should be verified for the substitute part?

A: The Mercury United Electronics 745-100-520-206 carries RoHS3 Compliance and REACH Unaffected status. Both parts share identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. These certifications confirm regulatory equivalence and environmental compliance for procurement and deployment.

Q: Is the operating temperature specification relevant for substitution?

A: The TE Connectivity part does not specify operating temperature limits. The Mercury substitute specifies -40°C ~ 105°C operating range. This specification difference does not prevent substitution; rather, the Mercury part provides documented thermal performance boundaries. System thermal requirements should be evaluated against the substitute's specified range.

Q: How should card thickness specifications be handled during substitution?

A: The TE Connectivity part does not specify card thickness tolerance. The Mercury substitute specifies 0.054" ~ 0.070" (1.37mm ~ 1.78mm) card thickness. During substitution, PCB card thickness must be verified to fall within the substitute's specified range to ensure proper contact engagement and mechanical stability.