TE Connectivity AMP Connectors 5746443-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 5746443-9 is an active rectangular connector header designed for through-hole mounting applications. This shrouded 40-position connector operates at 0.100" (2.54mm) pitch and supports board-to-cable/wire configurations with latch lock/eject fastening. The connector features press-fit and solder termination options, making it suitable for applications requiring robust mechanical retention and electrical connectivity.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit alternative connector series that maintain electrical and mechanical compatibility within specified parameters.

Substiute Parts

5746443-9

TE Connectivity AMP ConnectorsIn Stock: 7195746443-9 Datasheet

Current PartRFQ

53611-S40-6LF

Amphenol ICC (FCI)In Stock: 96653611-S40-6LF Datasheet

SimilarRFQ

71918-140LF

Amphenol ICC (FCI)In Stock: 136971918-140LF Datasheet

SimilarRFQ

N3432-6302RB

3MIn Stock: 1000183N3432-6302RB Datasheet

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N3432-6303RB

3MIn Stock: 1822N3432-6303RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5746443-9 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 40
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Shrouding: Shrouded - 4 Wall
• Contact Shape: Square
• Material Flammability Rating: UL94 V-0
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

All four substitute parts listed meet these mandatory parameters. Variations in contact length, insulation height, contact finish thickness, and termination options are permitted within the scope of rectangular connector design standards, provided the mating interface and mechanical envelope remain compatible.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts maintain active product status and full RoHS compliance, ensuring long-term availability and regulatory alignment with the original 5746443-9.

TE Connectivity 5746443-9 (AMP-Latch Series): Retains the original specification with press-fit and solder termination flexibility. REACH status is unaffected, providing regulatory clarity for applications with strict supply chain requirements.

Amphenol ICC 53611-S40-6LF (Quickie™ Series): Offers solder-only termination in tray packaging. REACH status is affected. Suitable for applications where press-fit termination is not required and tray packaging accommodates assembly workflows.

Amphenol ICC 71918-140LF (Quickie™ Series): Provides solder-only termination in tube packaging with glass-filled thermoplastic insulation. REACH status is affected. Tube packaging supports sequential component feeding in automated assembly environments.

3M N3432-6302RB (3000 Series): Delivers solder termination with tray packaging and higher current rating (1.75A per contact versus 1A). REACH status is unaffected. Suitable for applications requiring elevated current capacity and regulatory clarity.

3M N3432-6303RB (3000 Series): Delivers solder termination with bulk packaging and higher current rating (1.75A per contact versus 1A). REACH status is unaffected. Bulk packaging supports high-volume procurement and applications with extended post length requirements.

Frequently Asked Questions (FAQ)

Q: What determines if a connector can substitute for the 5746443-9?

A: Substitution requires exact matching of connector type (header), contact type (male pin), position count (40), row configuration (2 rows), mating pitch (0.100"), row spacing (0.100"), mounting method (through hole), shrouding (4-wall), contact shape (square), and flammability rating (UL94 V-0). All listed substitutes meet these criteria.

Q: Can I use a substitute part with different contact length specifications?

A: Contact length variations between the main part and substitutes are permissible. The 5746443-9 specifies mating contact length of 0.240" (6.10mm), while substitutes range from 0.228" to 0.240". These variations remain within acceptable mechanical tolerance for standard rectangular connector applications. Post length differences also exist across the product range without affecting substitution eligibility.

Q: What is the difference between press-fit and solder termination?

A: The 5746443-9 supports both press-fit and solder termination. Amphenol ICC substitutes (53611-S40-6LF and 71918-140LF) support solder termination only. 3M substitutes (N3432-6302RB and N3432-6303RB) support solder termination only. Press-fit termination eliminates the need for soldering, while solder termination requires thermal processing. Design requirements determine which termination method is appropriate.

Q: How do packaging options affect part selection?

A: The 5746443-9 is supplied in bulk packaging. Substitute parts are available in bulk (N3432-6303RB), tray (53611-S40-6LF, N3432-6302RB), or tube (71918-140LF) packaging. Packaging selection depends on assembly process requirements. Tray and tube packaging support automated pick-and-place equipment, while bulk packaging suits manual assembly or high-volume kitting operations.

Q: What is the significance of REACH status in part selection?

A: REACH status indicates regulatory compliance under European chemical regulations. The 5746443-9 and 3M substitutes (N3432-6302RB, N3432-6303RB) have unaffected REACH status, meaning no additional regulatory documentation is required. Amphenol ICC substitutes (53611-S40-6LF, 71918-140LF) have affected REACH status, requiring verification of compliance documentation for applications subject to European supply chain regulations.

Q: Are there current rating differences between the main part and substitutes?

A: The 5746443-9 is rated at 1A per contact. The 3M substitutes (N3432-6302RB and N3432-6303RB) are rated at 1.75A per contact, providing higher current capacity. Amphenol ICC substitutes do not specify current rating in the provided data. Applications requiring current capacity above 1A per contact should select the 3M alternatives.

Q: Can I mix substitute parts in the same assembly?

A: All substitute parts maintain identical mating pitch (0.100"), row spacing (0.100"), position count (40), and shrouding configuration (4-wall). Mechanical and electrical compatibility is preserved across all listed substitutes. However, assembly consistency and supply chain management typically favor single-source selection within a production run.

Q: What operating temperature ranges apply to each part?

A: The 5746443-9 operates from -65°C to 105°C. The 3M substitutes (N3432-6302RB and N3432-6303RB) operate from -55°C to 105°C, providing a narrower low-temperature range. Amphenol ICC substitutes do not specify operating temperature in the provided data. Applications requiring operation below -55°C must use the original 5746443-9.