LCAS4/0-12-X Equivalent & Substitute Parts

Part Overview

The LCAS4/0-12-X is a rectangular tongue terminal connector manufactured by Panduit Corp, designed for 4/0 AWG wire applications with a 1/2 stud connection. This component is part of the Pan-Lug™ series and features crimp barrel termination with electro-tin contact finish on copper material. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring this terminal specification.

Key Parameters

Parameter	Value
Wire Gauge	4/0 AWG
Stud/Tab Size	1/2 Stud
Terminal Type	Rectangular Tongue
Termination Method	Crimp, Barrel
Tab Thickness	0.140" (3.56mm)
Barrel ID	0.570" (14.48mm)
Barrel OD	0.710" (18.03mm)
Ring ID	0.530" (13.46mm)
Contact Material	Copper
Contact Finish	Electro-Tin
Insulation	Non-Insulated
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the LCAS4/0-12-X is determined by strict equivalence across the following critical parameters:

Wire gauge compatibility is the primary constraint, with both main and substitute parts rated for 4/0 AWG. The stud size of 1/2 must remain constant to ensure mechanical fit within the assembly. Termination method (crimp barrel) and barrel dimensions (ID 0.570", OD 0.710") must match exactly to maintain electrical and mechanical integrity. Contact material (copper) and finish (electro-tin) ensure consistent electrical performance and corrosion resistance. Tab thickness (0.140") and ring ID (0.530") are fixed parameters that determine compatibility with mating components.

The primary distinction between the main part and substitute is the terminal type: the LCAS4/0-12-X features a rectangular tongue configuration, while the substitute LCA4/0-12-X is a lug grounding terminal. Both maintain identical electrical and mechanical specifications for the connection interface, differing only in the terminal geometry and intended application context.

Parameter Comparison

Parameter	LCAS4/0-12-X (Main Part)	LCA4/0-12-X (Substitute)
Manufacturer	Panduit Corp	Panduit Corp
Series	Pan-Lug™	Pan-Lug™
Wire Gauge	4/0 AWG	4/0 AWG
Stud/Tab Size	1/2 Stud	1/2 Stud
Terminal Type	Rectangular Tongue	Lug, Grounding
Terminal Style	Single Stud Hole	Single Stud Hole
Tab Thickness	0.140" (3.56mm)	0.140" (3.56mm)
Length - Overall	2.400" (60.96mm)	2.670" (67.82mm)
Width - Outer Edges	1.060" (26.92mm)	1.060" (26.92mm)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Termination	Crimp, Barrel	Crimp, Barrel
Insulation	Non-Insulated	Non-Insulated
Color	Purple	Purple
Contact Finish	Electro-Tin	Electro-Tin
Contact Material	Copper	Copper
Diameter - Barrel ID	0.570" (14.48mm)	0.570" (14.48mm)
Diameter - Barrel OD	0.710" (18.03mm)	0.710" (18.03mm)
Diameter - Ring ID	0.530" (13.46mm)	0.530" (13.46mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The LCA4/0-12-X serves as the active equivalent for the obsolete LCAS4/0-12-X based on the following engineering criteria:

Both parts maintain identical electrical specifications across all critical parameters: wire gauge (4/0 AWG), stud size (1/2), barrel dimensions, contact material and finish, and termination method. Both components are ROHS3 compliant, ensuring regulatory alignment for current manufacturing environments.

The primary distinction is product status: the LCAS4/0-12-X is obsolete, while the LCA4/0-12-X is active with confirmed inventory availability (1153 pieces in stock versus 747 pieces for the obsolete part). The geometric difference in overall length (2.670" versus 2.400") reflects the terminal type variation (lug versus tongue) but does not affect the electrical connection interface or mechanical fit at the stud attachment point.

Selection of the LCA4/0-12-X is appropriate for applications where the terminal geometry can accommodate the lug configuration, as all electrical and mechanical interface parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between LCAS4/0-12-X and LCA4/0-12-X?

A: The terminal type differs: LCAS4/0-12-X features a rectangular tongue configuration, while LCA4/0-12-X is a lug grounding terminal. All electrical specifications, wire gauge, stud size, barrel dimensions, and contact properties are identical.

Q: Are the barrel dimensions identical between these parts?

A: Yes. Both parts have barrel ID of 0.570" (14.48mm), barrel OD of 0.710" (18.03mm), and ring ID of 0.530" (13.46mm). These dimensions ensure equivalent electrical and mechanical performance at the connection interface.

Q: Does the length difference affect compatibility?

A: The overall length difference (2.400" versus 2.670") results from the terminal geometry variation. This does not affect the stud attachment interface or electrical connection. Compatibility depends on available space in the application assembly.

Q: Are both parts RoHS compliant?

A: Yes. Both LCAS4/0-12-X and LCA4/0-12-X are ROHS3 compliant, meeting current regulatory requirements for electronic component manufacturing.

Q: Why is the LCAS4/0-12-X listed as obsolete?

A: Product status reflects manufacturer discontinuation. The LCA4/0-12-X remains in active production with current inventory availability, making it the recommended source for 4/0 AWG terminal applications with 1/2 stud connections.

Q: Can the LCA4/0-12-X be used in applications originally designed for LCAS4/0-12-X?

A: Substitution is valid when the application can accommodate the lug terminal geometry and the additional 0.270" length. The electrical and mechanical interface specifications are equivalent, ensuring functional compatibility.

Q: What is the wire gauge rating for both parts?

A: Both parts are rated for 4/0 AWG wire, with crimp barrel termination providing secure connection to the copper conductor.

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