TE Connectivity AMP Connectors 646954-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 646954-3 is a 4-position backplane connector header with male blades designed for board edge mounting applications. This connector features press-fit termination, right-angle orientation, and is part of the UPM (Universal Power Modules) series. The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility in backplane connector applications.

Substiute Parts

646954-3

TE Connectivity AMP ConnectorsIn Stock: 798646954-3 Datasheet

Current PartRFQ

5646954-3

TE Connectivity AMP ConnectorsIn Stock: 9795646954-3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 646954-3 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Compatibility:

• 4-position connector configuration
• 250V voltage rating
• UL94 V-0 flammability classification
• Gold or Gold-Palladium contact finish
• Operating temperature range of -55°C ~ 125°C

Mechanical Compatibility:

• Header connector type with male blades
• Blade power connector style
• Board edge mounting with through-hole, right-angle orientation
• Press-fit termination method
• Single-row, 4-power contact layout
• Gray color specification
• Board guide feature

Regulatory and Compliance Alignment:

• Moisture Sensitivity Level 1 (Unlimited)
• ECCN EAR99 classification
• HTSUS 8536.69.4040 tariff code

The substitute part 5646954-3 maintains complete parameter equivalence while offering active product status and improved compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 5646954-3 is the direct active equivalent for the obsolete 646954-3. Selection of the substitute part is based on the following engineering factors:

Product Status Alignment: The 646954-3 carries obsolete status, indicating discontinued manufacturing and limited availability. The 5646954-3 maintains active product status, ensuring long-term procurement viability and supply chain continuity.

Regulatory Compliance Enhancement: The substitute part 5646954-3 achieves ROHS3 compliance, whereas the main part is RoHS non-compliant. This compliance upgrade aligns with current environmental and regulatory requirements for electronic components in industrial backplane applications.

Electrical and Mechanical Equivalence: All critical parameters remain identical between the two parts, including connector configuration, voltage rating, temperature operating range, contact finish specifications, and mounting methodology. This equivalence ensures direct interchangeability without circuit redesign or mechanical modification.

Packaging and Inventory Considerations: The substitute part is supplied in tube packaging with higher inventory availability (918 pieces versus 690 pieces), supporting production scheduling and component procurement efficiency.

Frequently Asked Questions (FAQ)

Q: Can the 5646954-3 be used as a direct replacement for the 646954-3 in existing designs?

A: Yes. The 5646954-3 maintains complete electrical and mechanical equivalence across all specified parameters, including connector type, position count, voltage rating, temperature range, and mounting configuration. Direct substitution is supported without design modification.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active product status indicates ongoing manufacturing and availability through standard distribution channels. This eliminates supply chain risk associated with obsolete components and ensures consistent procurement for production and maintenance applications.

Q: How does the ROHS3 compliance of the 5646954-3 differ from the RoHS non-compliance of the 646954-3?

A: ROHS3 compliance indicates the substitute part meets current Restriction of Hazardous Substances regulations, restricting specified hazardous materials in electrical and electronic equipment. This compliance status is required for many industrial and commercial applications and aligns with current environmental standards.

Q: Are there any differences in contact finish between the two parts?

A: No. Both parts specify Gold or Gold-Palladium contact finish, ensuring equivalent electrical performance and corrosion resistance in backplane connector applications.

Q: What packaging format is used for the 5646954-3?

A: The 5646954-3 is supplied in tube packaging, which is standard for backplane connector components and supports automated assembly processes.

Q: Do both parts operate within the same temperature range?

A: Yes. Both the 646954-3 and 5646954-3 operate across the identical temperature range of -55°C to 125°C, supporting equivalent thermal performance in industrial backplane environments.

Q: Is the voltage rating identical between the two parts?

A: Yes. Both parts carry a 250V voltage rating and UL94 V-0 flammability classification, ensuring equivalent electrical safety and performance specifications.