TE Connectivity 4-146293-0 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-146293-0 is a vertical rectangular connector header designed for through-hole mounting applications. This 40-position connector operates at 0.100" (2.54mm) pitch and is part of the AMPMODU Mod II series. The connector features male pin contacts with gold-plated mating surfaces and tin-lead plated posts, supporting a 3A current rating across an operating temperature range of -65°C to 105°C.

The 4-146293-0 carries an obsolete product status. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for legacy systems utilizing this connector specification.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Number of Positions	40
Pitch - Mating	0.100" (2.54mm)
Contact Type	Male Pin
Mounting Type	Through Hole
Number of Rows	1
Current Rating	3A
Operating Temperature Range	-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 4-146293-0 is determined by strict alignment with the following electrical and mechanical parameters:

Critical Matching Parameters:

Connector type classification (Header, Breakaway)
Position count (40 positions)
Mating pitch specification (0.100" / 2.54mm)
Contact type (Male Pin)
Mounting method (Through Hole)
Row configuration (1 row)
Current rating (3A minimum)
Operating temperature range (-65°C ~ 105°C minimum)
Contact finish on mating surface (Gold)
Insulation material (Liquid Crystal Polymer)
Flammability rating (UL94 V-0)

The substitute part 9-146281-0 meets all critical matching parameters. Both connectors belong to the AMPMODU Mod II series and maintain identical dimensional and electrical specifications. The primary distinction between these parts relates to product status, regulatory compliance, and termination method options.

Parameter Comparison

Parameter	4-146293-0 (Main Part)	9-146281-0 (Substitute)	Match Status
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors	Identical
Series	AMPMODU Mod II	AMPMODU Mod II	Identical
Connector Type	Header, Breakaway	Header, Breakaway	Identical
Number of Positions	40	40	Identical
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	Identical
Contact Type	Male Pin	Male Pin	Identical
Number of Rows	1	1	Identical
Mounting Type	Through Hole	Through Hole	Identical
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)	Identical
Contact Length - Post	0.120" (3.05mm)	0.120" (3.05mm)	Identical
Overall Contact Length	0.440" (11.18mm)	0.440" (11.18mm)	Identical
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)	Identical
Contact Shape	Square	Square	Identical
Contact Finish - Mating	Gold	Gold	Identical
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	Identical
Contact Material	Copper Alloy	Copper Alloy	Identical
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Identical
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	Identical
Material Flammability Rating	UL94 V-0	UL94 V-0	Identical
Insulation Color	Black	Black	Identical
Current Rating (Amps)	3A	3A	Identical
Contact Finish Thickness - Post	100.0µin (2.54µm)	100.0µin (2.54µm)	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
ECCN	EAR99	EAR99	Identical
HTSUS	8536.69.4040	8536.69.4040	Identical
Product Status	Obsolete	Active	Different
Termination	Press-Fit, Solder	Solder	Different
Contact Finish - Post	Tin-Lead	Tin	Different
RoHS Status	RoHS non-compliant	RoHS Compliant	Different
REACH Status	REACH Affected	REACH Unaffected	Different

Engineering Selection Recommendations

The 9-146281-0 serves as a direct functional substitute for the obsolete 4-146293-0 based on identical electrical and mechanical specifications across all critical parameters. Both connectors maintain the same 40-position, 2.54mm pitch configuration, contact geometry, current rating, and operating temperature range.

Product Status Consideration: The 4-146293-0 carries obsolete status, while the 9-146281-0 maintains active product status with significantly higher inventory availability (6253 units versus 814 units). Active status ensures continued manufacturing support and supply chain reliability.

Regulatory Compliance: The 9-146281-0 is RoHS compliant and REACH unaffected, whereas the 4-146293-0 is RoHS non-compliant and REACH affected. For applications subject to RoHS or REACH regulatory requirements, the 9-146281-0 is the appropriate selection.

Termination Method: The 4-146293-0 supports both press-fit and solder termination options. The 9-146281-0 supports solder termination only. Applications requiring press-fit termination exclusively cannot use the 9-146281-0.

Contact Finish - Post: The 4-146293-0 features tin-lead plating on posts, while the 9-146281-0 features tin plating. Both finishes provide equivalent electrical performance and solderability for through-hole applications.

For new designs, production continuity, and regulatory compliance, the 9-146281-0 is the recommended selection. For legacy systems requiring press-fit termination capability, the 4-146293-0 remains the specified part.

Frequently Asked Questions (FAQ)

Q: Are the 4-146293-0 and 9-146281-0 mechanically interchangeable?

A: Yes. Both connectors share identical dimensions, contact geometry, pitch spacing, and mounting configuration. They are mechanically interchangeable in through-hole applications.

Q: Are the 4-146293-0 and 9-146281-0 electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including 3A current rating, -65°C to 105°C operating temperature range, gold-plated mating contacts, and copper alloy contact material.

Q: What is the primary difference between these two parts?

A: The primary differences are product status (obsolete versus active), regulatory compliance (RoHS non-compliant versus RoHS compliant), termination method options (press-fit and solder versus solder only), and post contact finish (tin-lead versus tin).

Q: Can I use the 9-146281-0 in place of the 4-146293-0 in existing designs?

A: The 9-146281-0 is electrically and mechanically compatible with the 4-146293-0 for solder termination applications. If your design requires press-fit termination capability, the 9-146281-0 does not support this option.

Q: Why does the 4-146293-0 have obsolete status?

A: The 4-146293-0 is superseded by the 9-146281-0, which offers improved regulatory compliance and active manufacturing support. TE Connectivity has transitioned production to the newer part number.

Q: Are there inventory differences between these parts?

A: Yes. The 9-146281-0 has 6253 units in stock, while the 4-146293-0 has 814 units. The higher inventory of the active part ensures better supply chain availability.

Q: What is the significance of the RoHS compliance difference?

A: RoHS compliance restricts the use of hazardous substances in electrical and electronic equipment. The 9-146281-0 meets RoHS requirements, making it suitable for applications and markets with RoHS mandates. The 4-146293-0 does not meet these requirements.

Q: Does the tin-lead versus tin post finish affect performance?

A: Both finishes provide equivalent electrical performance and solderability for through-hole applications. The tin finish on the 9-146281-0 is lead-free, aligning with RoHS compliance requirements.

Q: Can I mix 4-146293-0 and 9-146281-0 connectors in the same assembly?

A: Yes. Both connectors are electrically and mechanically compatible and can be used together in the same assembly without performance degradation.

Q: What packaging format is the 9-146281-0 supplied in?

A: The 9-146281-0 is supplied in bulk packaging, whereas the 4-146293-0 packaging format is not specified in the available data.

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