LCAS2-56-Q Equivalent & Substitute Parts

Part Overview

The LCAS2-56-Q is a rectangular tongue terminal connector manufactured by Panduit Corp, designed for 2 AWG wire gauge applications with a 5/16 stud connection. This component is classified as a Pan-Lug™ series terminal and features a crimp barrel termination method. The part is currently listed with obsolete product status, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure availability for new installations and repairs.

Key Parameters

Parameter	Value
Wire Gauge	2 AWG
Stud/Tab Size	5/16 Stud
Terminal Type	Rectangular Tongue
Termination Method	Crimp, Barrel
Barrel ID	0.310" (7.87mm)
Barrel OD	0.420" (10.67mm)
Ring ID	0.340" (8.64mm)
Tab Thickness	0.100" (2.54mm)
Contact Material	Copper
Contact Finish	Electro-Tin
Insulation	Non-Insulated
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LCAS2-56-Q is determined by strict equivalence across critical electrical and mechanical parameters. The following parameters must remain constant for a part to function as a direct substitute:

Wire gauge (2 AWG), stud size (5/16), terminal type (rectangular tongue), termination method (crimp barrel), barrel inner diameter (0.310"), barrel outer diameter (0.420"), ring inner diameter (0.340"), tab thickness (0.100"), contact material (copper), and contact finish (electro-tin). Variations in overall length and width do not affect functional compatibility when all other parameters remain identical. The substitute part must maintain ROHS3 compliance and non-insulated construction to ensure regulatory and operational consistency.

Parameter Comparison

Parameter	LCAS2-56-Q (Main Part)	LCA2-56-Q (Substitute)	Match Status
Manufacturer	Panduit Corp	Panduit Corp	Identical
Series	Pan-Lug™	Pan-Lug™	Identical
Wire Gauge	2 AWG	2 AWG	Identical
Stud/Tab Size	5/16 Stud	5/16 Stud	Identical
Terminal Type	Rectangular Tongue	Rectangular Tongue	Identical
Termination Method	Crimp, Barrel	Crimp, Barrel	Identical
Tab Thickness	0.100" (2.54mm)	0.100" (2.54mm)	Identical
Barrel ID	0.310" (7.87mm)	0.310" (7.87mm)	Identical
Barrel OD	0.420" (10.67mm)	0.420" (10.67mm)	Identical
Ring ID	0.340" (8.64mm)	0.340" (8.64mm)	Identical
Contact Material	Copper	Copper	Identical
Contact Finish	Electro-Tin	Electro-Tin	Identical
Insulation	Non-Insulated	Non-Insulated	Identical
Color	Brown	Brown	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Length - Overall	1.580" (40.13mm)	1.900" (48.26mm)	Different
Width - Outer Edges	0.660" (16.76mm)	0.660" (16.76mm)	Identical
Product Status	Obsolete	Active	Different

Engineering Selection Recommendations

The LCA2-56-Q serves as a direct functional equivalent to the LCAS2-56-Q for applications requiring 2 AWG rectangular tongue terminals with 5/16 stud connections. All critical electrical and mechanical parameters are identical between the two parts, including wire gauge, stud size, barrel dimensions, contact material, and contact finish. The LCA2-56-Q maintains ROHS3 compliance, ensuring regulatory consistency with the original part specification.

The primary distinction between these parts is product status: the LCAS2-56-Q is obsolete while the LCA2-56-Q is active. The LCA2-56-Q also features a longer overall length (1.900" versus 1.580"), which does not affect electrical or mechanical compatibility in applications where the terminal is mounted in free-hanging in-line configurations. Current inventory availability favors the LCA2-56-Q (763 pieces in stock) over the obsolete LCAS2-56-Q (830 pieces in stock).

Frequently Asked Questions (FAQ)

Q: Can the LCA2-56-Q replace the LCAS2-56-Q in existing applications?

A: Yes. The LCA2-56-Q is functionally equivalent to the LCAS2-56-Q across all critical parameters: wire gauge, stud size, barrel dimensions, contact material, and contact finish. Both parts are non-insulated rectangular tongue terminals with crimp barrel termination and ROHS3 compliance.

Q: What is the significance of the length difference between these parts?

A: The LCAS2-56-Q has an overall length of 1.580" while the LCA2-56-Q measures 1.900". This dimensional difference does not affect electrical performance or mechanical compatibility in free-hanging in-line mounting applications. Length variation is a non-critical parameter for terminal substitution when all other specifications remain constant.

Q: Are both parts suitable for 2 AWG wire applications?

A: Yes. Both the LCAS2-56-Q and LCA2-56-Q are rated for 2 AWG wire gauge with identical barrel inner diameter (0.310") and outer diameter (0.420") specifications, ensuring proper crimp engagement and electrical conductivity.

Q: What is the difference in product status between these parts?

A: The LCAS2-56-Q is classified as obsolete, indicating it is no longer in active production. The LCA2-56-Q is classified as active, meaning it is currently manufactured and available through standard distribution channels. For new designs and ongoing supply requirements, the LCA2-56-Q is the recommended selection.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the LCAS2-56-Q and LCA2-56-Q are ROHS3 compliant and carry identical ECCN (EAR99) and HTSUS (8536.90.4000) classifications, ensuring regulatory consistency for applications requiring these certifications.

Q: Are the contact finish and material specifications identical?

A: Yes. Both parts feature copper contact material with electro-tin finish, providing equivalent electrical conductivity and corrosion resistance characteristics.

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