TE Connectivity 7-146311-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 7-146311-5 is a rectangular connector header manufactured under the AMPMODU Mod II series. This through-hole, right-angle connector features 50 positions at 2.54mm pitch with male pin contacts, designed for board-to-board or cable applications. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

7-146311-5

TE Connectivity AMP ConnectorsIn Stock: 8087-146311-5 Datasheet

Current PartRFQ

7-146309-5

TE Connectivity AMP ConnectorsIn Stock: 10257-146309-5 Datasheet

MFR RecommendedRFQ

2350-5221-TG

3MIn Stock: 10082350-5221-TG Datasheet

SimilarRFQ

68022-250HLF

Amphenol ICC (FCI)In Stock: 78068022-250HLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7-146311-5 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 50
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Contact Type: Male Pin
• Mounting Type: Through Hole, Right Angle
• Contact Length - Mating: 0.318" (8.08mm)
• Contact Length - Post: 0.110" (2.79mm)
• Contact Shape: Square
• Fastening Type: Push-Pull

Compatible Variation Parameters:

• Connector Type: Header or Header, Breakaway
• Style: Board to Board or Board to Board or Cable
• Termination: Solder or Press-Fit, Solder
• Contact Finish - Mating: Gold (with acceptable thickness variations)
• Contact Finish - Post: Tin or Tin-Lead
• Insulation Material: Thermoplastic or Thermoplastic, Glass Filled
• Current Rating: 3A or higher
• Operating Temperature: Range encompassing -65°C to 105°C or equivalent

The substitute parts identified below satisfy these criteria while offering active product status and improved compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 7-146309-5

The 7-146309-5 is the preferred substitute for the obsolete 7-146311-5. Both components share identical AMPMODU Mod II series lineage with matching mechanical and electrical specifications. The 7-146309-5 maintains active product status, ensuring long-term availability and supply chain stability. This part is functionally equivalent with the same contact geometry, pitch, and row spacing. The primary difference is termination method (solder-only versus press-fit and solder), which does not affect mating compatibility. This substitution requires no design modification.

Secondary Recommendation: Amphenol ICC 68022-250HLF

The 68022-250HLF from the BERGSTIK® II series provides an alternative from a different manufacturer with active product status. This connector meets all critical dimensional and contact specifications. The 68022-250HLF offers enhanced current rating (5A versus 3A) and voltage rating (110V), providing additional performance margin. The contact material differs (Phosphor Bronze versus Copper Alloy), which maintains electrical performance within the application envelope. RoHS compliance is confirmed. This substitution is suitable for applications requiring higher current capacity or when supply diversification is required.

Alternative Option: 3M 2350-5221-TG

The 2350-5221-TG from the 3M 2300 series satisfies all critical dimensional requirements and contact specifications. This connector maintains active product status and UL94 V-0 flammability rating. The operating temperature range (-55°C to 105°C) encompasses the primary application envelope, though the lower minimum temperature (-55°C versus -65°C) should be evaluated for extreme cold applications. RoHS non-compliance status requires verification against project requirements. This option is suitable when 3M component standardization is preferred and RoHS exemptions are available.

Compliance Considerations:

• The 7-146309-5 and 68022-250HLF maintain RoHS compliance, aligning with modern regulatory requirements.
• The 2350-5221-TG is RoHS non-compliant and requires explicit approval for applications subject to RoHS directives.
• All substitute options maintain MSL 1 (Unlimited) moisture sensitivity, matching the original part.

Frequently Asked Questions (FAQ)

Q: Can the 7-146309-5 directly replace the 7-146311-5 without PCB modification?

A: Yes. The 7-146309-5 maintains identical mating contact geometry, pitch (0.100"), row spacing (0.100"), and mounting footprint. The connector will mate with existing receptacles designed for the 7-146311-5. The termination method difference (solder-only versus press-fit and solder) does not affect mating compatibility or PCB land pattern requirements.

Q: What is the key difference between the 7-146311-5 and 7-146309-5?

A: The primary difference is termination capability. The 7-146311-5 supports both press-fit and solder termination, while the 7-146309-5 supports solder termination only. Both connectors are mechanically and electrically equivalent for board-to-board applications. The 7-146309-5 is the active production equivalent.

Q: Is the Amphenol ICC 68022-250HLF compatible with existing mating receptacles?

A: Yes. The 68022-250HLF maintains the same contact pitch (0.100"), row spacing (0.100"), contact length (0.318" mating, 0.110" post), and contact shape (square) as the 7-146311-5. The connector will mate with receptacles designed for 2.54mm pitch, 50-position headers. The higher current rating (5A) and voltage rating (110V) provide additional performance capability without affecting mechanical compatibility.

Q: Why is the 3M 2350-5221-TG listed as an alternative rather than a primary recommendation?

A: The 2350-5221-TG is RoHS non-compliant, which restricts its use in applications subject to RoHS directives. Additionally, the operating temperature minimum (-55°C) is higher than the original part (-65°C), which may be limiting for extreme cold environment applications. The part remains functionally compatible but requires explicit compliance verification before selection.

Q: Are there any insulation height differences between the substitute parts?

A: Minor variations exist. The 7-146311-5 specifies 0.238" (6.05mm), while the 7-146309-5 matches this exactly. The 2350-5221-TG is 0.242" (6.14mm), and the 68022-250HLF is 0.240" (6.10mm). These variations are within typical manufacturing tolerance and do not affect mating compatibility or board clearance for standard applications.

Q: What is the contact material difference between the 68022-250HLF and the original part?

A: The 7-146311-5 uses Copper Alloy contacts, while the 68022-250HLF uses Phosphor Bronze. Both materials provide equivalent electrical conductivity and contact resistance performance. Phosphor Bronze offers enhanced spring characteristics and wear resistance, making it suitable for high-cycle mating applications.

Q: Can I use the 68022-250HLF in applications requiring -65°C operation?

A: The operating temperature specification for the 68022-250HLF is not provided in the available data. Contact the manufacturer to confirm minimum operating temperature capability before specifying this connector for applications requiring -65°C operation.

Q: Are all substitute parts available in the same packaging format?

A: The 7-146311-5, 7-146309-5, and 2350-5221-TG packaging information is not specified in the available data. The 68022-250HLF is supplied in bag packaging. Confirm packaging requirements with the supplier for your specific procurement needs.

Q: Which substitute part offers the best long-term availability?

A: The 7-146309-5 is the recommended choice for long-term availability. As the active production equivalent within the same AMPMODU Mod II series from TE Connectivity, it maintains the strongest supply chain continuity. The 68022-250HLF and 2350-5221-TG are also active products but represent different manufacturer lines.