Equivalent & Substitute Parts for TE Connectivity 7-146293-0 Rectangular Connector Header

Part Overview

The TE Connectivity AMP Connectors 7-146293-0 is a vertical rectangular connector header designed for through-hole mounting applications. This 20-position connector operates at 0.100" (2.54mm) pitch and is part of the AMPMODU Mod II series. The part features male pins with gold-plated mating contacts and tin-plated posts, supporting a 3A current rating across an operating temperature range of -65°C to 105°C.

The 7-146293-0 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and maintenance requirements for applications utilizing this connector specification.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	20
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Press-Fit, Solder
Contact Length - Mating	0.230" (5.84mm)
Contact Length - Post	0.120" (3.05mm)
Insulation Height	0.090" (2.29mm)
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Copper Alloy
Insulation Material	Liquid Crystal Polymer (LCP)
Operating Temperature	-65°C ~ 105°C
Current Rating	3A
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the 7-146293-0 is determined by strict alignment of electrical and mechanical parameters. The critical parameters governing substitution are:

Electrical Parameters:

Contact Type: Male Pin
Number of Positions: 20
Pitch - Mating: 0.100" (2.54mm)
Current Rating: 3A
Contact Finish - Mating: Gold or Tin
Operating Temperature Range: Minimum -65°C to 105°C

Mechanical Parameters:

Connector Type: Header, Breakaway
Mounting Type: Through Hole
Contact Length - Mating: 0.230" (5.84mm)
Termination: Solder (primary requirement for active substitutes)
Insulation Material: LCP or PBT
Material Flammability Rating: UL94 V-0

Primary Substitute (MFR Recommended): The TE Connectivity 7-146281-0 is the manufacturer-recommended direct substitute. This part maintains identical electrical and mechanical specifications with the exception of termination type (solder-only versus press-fit/solder) and active product status.

Secondary Substitutes (Similar Manufacturers): Sullins Connector Solutions parts PBC20SAAN through PBC20SAHN and PEC20SAAN series provide functional equivalence with variations in contact post length. These parts maintain core electrical parameters (20 positions, 2.54mm pitch, 3A rating, gold mating finish) while offering extended post lengths for different PCB stack-up requirements. The PEC20SAAN variant features tin mating finish instead of gold.

Parameter Comparison

Parameter	7-146293-0 (Main)	7-146281-0 (MFR Recommended)	PBC20SAAN	PBC20SABN	PBC20SACN	PBC20SADN	PBC20SAEN	PBC20SAFN	PBC20SAGN	PBC20SAHN	PEC20SAAN
Manufacturer	TE Connectivity	TE Connectivity	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins
Connector Type	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	20	20	20	20	20	20	20	20	20	20	20
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	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	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Press-Fit, Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.520" (13.21mm)	0.620" (15.75mm)	0.720" (18.29mm)	0.820" (20.83mm)	0.120" (3.05mm)
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	100.0µin (2.54µm)
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	LCP	LCP	PBT	PBT	PBT	PBT	PBT	PBT	PBT	PBT	PBT
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating	3A	3A	3A	3A	3A	3A	3A	3A	3A	3A	3A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 7-146281-0

The 7-146281-0 is the manufacturer-recommended substitute for the obsolete 7-146293-0. This part maintains identical electrical and mechanical specifications including 20 positions, 0.100" (2.54mm) pitch, 3A current rating, and gold-plated mating contacts. The primary difference is termination type (solder-only versus press-fit/solder combination). The 7-146281-0 carries active product status and RoHS compliance certification, ensuring long-term supply availability and regulatory alignment.

Secondary Recommendations: Sullins Connector Solutions PBC20 and PEC20 Series

The Sullins PBC20SAAN through PBC20SAHN series and PEC20SAAN provide functional equivalence for applications where contact post length variation is acceptable. These parts maintain core electrical parameters (20 positions, 2.54mm pitch, 3A rating) and UL94 V-0 flammability rating. All Sullins alternatives carry active product status and ROHS3 compliance.

Selection Criteria by Application:

Direct Replacement (Identical Post Length): Use 7-146281-0 (TE Connectivity) or PBC20SAAN/PEC20SAAN (Sullins) for applications requiring 0.120" (3.05mm) contact post length.
Extended Post Length Applications: Select from PBC20SABN through PBC20SAHN based on specific PCB stack-up requirements. Post lengths range from 0.230" to 0.820".
Mating Contact Finish Consideration: PEC20SAAN features tin mating finish instead of gold. This variant is suitable for applications where tin finish is acceptable or preferred.
Insulation Material Compatibility: The 7-146293-0 and 7-146281-0 use LCP insulation. Sullins alternatives use PBT insulation. Both materials meet UL94 V-0 flammability requirements and are suitable for standard through-hole applications.
Temperature Range: Sullins parts support -65°C to 125°C operating range, exceeding the original specification of -65°C to 105°C. This provides additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the 7-146281-0 directly replace the 7-146293-0 in existing designs?

A: Yes. The 7-146281-0 is the manufacturer-recommended substitute with identical electrical and mechanical specifications. The termination difference (solder-only versus press-fit/solder) does not affect functional compatibility in applications using solder termination. Designs utilizing press-fit termination exclusively require evaluation of alternative mounting methods.

Q: What is the primary difference between the TE Connectivity and Sullins alternatives?

A: The TE Connectivity 7-146281-0 maintains the original LCP insulation material and identical contact post length (0.120"). Sullins alternatives use PBT insulation and offer variable contact post lengths from 0.120" to 0.820". Both material systems meet UL94 V-0 flammability requirements. The choice depends on PCB stack-up requirements and material compatibility with existing designs.

Q: Are the Sullins PBC20 and PEC20 series interchangeable?

A: The PBC20 series features gold-plated mating contacts (10.0µin thickness), while the PEC20SAAN features tin-plated mating contacts (100.0µin thickness). Both maintain 20 positions, 2.54mm pitch, and 3A current rating. Selection depends on mating contact finish requirements and connector socket specifications.

Q: How do contact post length variations affect PCB design?

A: Contact post length determines the depth of insertion into the PCB. The original 7-146293-0 specifies 0.120" (3.05mm) post length. Sullins alternatives range from 0.120" to 0.820". Longer post lengths accommodate thicker PCB assemblies or additional stack-up layers. PCB design must account for the selected post length to ensure proper solder joint formation and mechanical stability.

Q: What is the significance of the insulation height difference between the main part and substitutes?

A: The 7-146293-0 specifies 0.090" (2.29mm) insulation height, while most Sullins alternatives specify 0.100" (2.54mm). This 0.010" difference affects the overall connector profile and may impact board-to-board spacing in compact designs. Verify PCB layout compatibility before selecting a substitute with different insulation height.

Q: Are all listed substitutes RoHS compliant?

A: Yes. The 7-146293-0 is RoHS Compliant. The 7-146281-0 is RoHS Compliant. All Sullins alternatives (PBC20 and PEC20 series) are ROHS3 Compliant. Both compliance levels meet current regulatory requirements for electronic component manufacturing and distribution.

Q: What inventory considerations apply to these substitutes?

A: The 7-146293-0 (obsolete) has 981 pieces in stock. The 7-146281-0 (active) has 947 pieces available. Sullins alternatives range from 683 to 2049 pieces in inventory. The PEC20SAAN variant offers the highest inventory level at 2049 pieces, providing supply security for high-volume applications.

Q: Can the operating temperature range difference affect part selection?

A: The 7-146293-0 operates from -65°C to 105°C. All Sullins alternatives operate from -65°C to 125°C. The extended upper temperature limit in Sullins parts provides additional thermal margin. For applications operating near or above 105°C, Sullins alternatives are preferred. For applications within the original temperature range, both options are suitable.

Q: What contact material differences exist between alternatives?

A: The 7-146293-0 uses Copper Alloy contacts. The 7-146281-0 maintains Copper Alloy contacts. All Sullins alternatives use Phosphor Bronze contacts. Both material systems provide equivalent electrical performance and current-carrying capacity (3A). Material selection is based on supplier availability and design preference.

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