TE Connectivity 2-146289-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 2-146289-4 is a vertical rectangular connector header with 24 positions at 2.54mm pitch, designed for through-hole board-to-board or cable applications. This connector features male pins with kinked solder termination and push-pull fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	24
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Fastening Type	Push-Pull
Current Rating	3A
Operating Temperature	-65°C ~ 105°C
Contact Finish - Mating	Gold
Insulation Material	Liquid Crystal Polymer (LCP)
Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 2-146289-4 is determined by the following critical parameters:

Primary Compatibility Criteria:

24-position connector header configuration
0.100" (2.54mm) mating pitch
Male pin contact type
Through-hole mounting
Push-pull fastening mechanism
Gold-plated mating contact finish
3A current rating per contact
UL94 V-0 flammability rating
Operating temperature range compatibility

Substitute Classification:

MFR Recommended Substitute: TE Connectivity 7-146289-4 represents the direct manufacturer upgrade path, maintaining the AMPMODU Mod II series lineage with active product status. This part differs only in termination method (solder versus kinked pin) and minor contact finish thickness specifications, with all electrical and mechanical parameters aligned.

Similar Alternatives: Amphenol ICC (FCI) parts 68024-124HLF and 77311-122-24LF provide functional equivalence across different connector series (BERGSTIK® II and BERGSTIK® respectively). These alternatives maintain the 24-position, 2.54mm pitch, male pin, through-hole configuration with push-pull fastening and gold mating contact finish. Variations in contact material (phosphor bronze versus copper alloy), insulation height, and post contact length represent acceptable mechanical tolerances within the rectangular connector category.

Parameter Comparison

Parameter	2-146289-4 (Main)	7-146277-4 (MFR Recommended)	68024-124HLF (Similar)	77311-122-24LF (Similar)
Manufacturer	TE Connectivity AMP	TE Connectivity AMP	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	AMPMODU Mod II	AMPMODU Mod II	BERGSTIK® II	BERGSTIK®
Product Status	Obsolete	Active	Active	Active
Connector Type	Header, Breakaway	Header, Breakaway	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	24	24	24	24
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold or Gold, GXT™	Gold or Gold, GXT™
Current Rating	3A	3A per Contact	5A	3A per Contact
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	Not Specified	-65°C ~ 125°C
Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	Non-compliant	Not Specified	Compliant	Compliant
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Not Specified	Thermoplastic
Contact Length - Mating	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.305" (7.75mm)
Contact Length - Post	0.125" (3.18mm)	0.125" (3.18mm)	0.150" (3.81mm)	0.120" (3.05mm)
Overall Contact Length	0.533" (13.55mm)	0.533" (13.54mm)	0.568" (14.43mm)	0.525" (13.34mm)
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)

Engineering Selection Recommendations

Primary Selection: TE Connectivity 7-146277-4

The TE Connectivity 7-146277-4 is the manufacturer-recommended substitute for the obsolete 2-146289-4. This part maintains identical electrical and mechanical specifications within the AMPMODU Mod II series and carries active product status. The primary distinction is termination method (solder versus kinked pin), which does not affect mating compatibility or electrical performance. Selection of this part ensures continuity with the original design intent and manufacturer support.

Alternative Selection: Amphenol ICC 77311-122-24LF

The Amphenol ICC 77311-122-24LF provides a cross-manufacturer alternative with RoHS compliance and extended operating temperature range (-65°C to 125°C). This part maintains the critical 24-position, 2.54mm pitch, male pin configuration with push-pull fastening and gold mating contact finish. The 3A per contact current rating matches the original specification. Mechanical variations in contact post length (0.120" versus 0.125") and insulation height (0.100" versus 0.090") fall within acceptable tolerances for board-to-board connector applications. This selection is appropriate for new designs requiring RoHS compliance.

Alternative Selection: Amphenol ICC 68024-124HLF

The Amphenol ICC 68024-124HLF offers higher current capacity (5A) and RoHS compliance. This part is suitable for applications requiring increased current handling beyond the original 3A specification. Mechanical differences include increased contact post length (0.150" versus 0.125") and insulation height (0.100" versus 0.090"). Operating temperature range is not specified for this part, requiring verification against application requirements.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 7-146277-4 directly replace the 2-146289-4 in existing designs?

A: Yes. The 7-146277-4 maintains identical mating pitch (2.54mm), position count (24), contact type (male pin), fastening mechanism (push-pull), and electrical ratings (3A, gold mating finish). The termination method differs (solder versus kinked pin), but this does not affect mating compatibility or electrical performance. PCB layout and connector cavity design remain unchanged.

Q: What are the mechanical differences between the main part and Amphenol alternatives?

A: The Amphenol ICC parts differ in contact post length and insulation height. The 77311-122-24LF has a 0.120" post length and 0.100" insulation height compared to the original 0.125" and 0.090" respectively. The 68024-124HLF has a 0.150" post length and 0.100" insulation height. These variations affect PCB pad design and mating depth but do not compromise electrical functionality for standard board-to-board applications.

Q: Are the Amphenol alternatives RoHS compliant?

A: Yes. Both the 68024-124HLF and 77311-122-24LF are RoHS compliant. The original 2-146289-4 and the TE Connectivity 7-146277-4 are not RoHS compliant. Selection of Amphenol alternatives is required for applications subject to RoHS regulations.

Q: What is the current rating difference between the main part and the 68024-124HLF?

A: The original 2-146289-4 is rated at 3A per contact. The Amphenol ICC 68024-124HLF is rated at 5A per contact. This higher rating provides additional current capacity for applications requiring increased power delivery. The 77311-122-24LF maintains the 3A per contact rating.

Q: How do operating temperature ranges compare across the substitute options?

A: The original 2-146289-4 operates from -65°C to 105°C. The TE Connectivity 7-146277-4 maintains this range. The Amphenol ICC 77311-122-24LF extends the range to -65°C to 125°C, providing 20°C additional high-temperature capability. The 68024-124HLF does not specify an operating temperature range.

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

A: Packaging differs across alternatives. The original part packaging is not specified. The TE Connectivity 7-146277-4 packaging is not specified. The Amphenol ICC 68024-124HLF is supplied in bag packaging. The 77311-122-24LF is supplied in bulk packaging. Packaging selection may affect inventory management and component handling procedures.

Q: Can the Amphenol parts be used interchangeably with the TE Connectivity parts?

A: Functional interchangeability is confirmed for the 24-position, 2.54mm pitch, male pin, push-pull fastening configuration. However, mechanical differences in contact post length and insulation height require PCB design verification. Mating connector compatibility must be confirmed with the specific receptacle part number used in the application.

Q: What compliance certifications are common across all substitute options?

A: All parts carry UL94 V-0 flammability rating and are classified under ECCN EAR99 with HTSUS code 8536.69.4040. All parts have Moisture Sensitivity Level (MSL) 1 (Unlimited). REACH compliance status is affected for all parts. RoHS compliance differs: the original and TE Connectivity substitute are non-compliant; Amphenol alternatives are compliant.

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