LTL-4231NHNP Equivalent & Substitute Parts

Part Overview

The LTL-4231NHNP is a 3mm LED Circuit Board Indicator manufactured by Lite-On Inc., featuring a single green diffused lens with a domed top design. This component operates at 2.1V with a 30mA current rating and delivers 12.6mcd brightness at a 60° viewing angle. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for seamless circuit board integration.

Substiute Parts

LTL-4231NHNP

Lite-On Inc.In Stock: 739LTL-4231NHNP Datasheet

Current PartRFQ

LTL-4231NHBP

LITEONIn Stock: 8405LTL-4231NHBP Datasheet

DirectRFQ

LTL-155GHA

Lite-On Inc.In Stock: 946LTL-155GHA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTL-4231NHNP are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Color: Green
• Wavelength - Peak: 565nm
• Current Rating: 30mA
• Voltage Rating: 2.1V
• Millicandela Rating: 12.6mcd
• Viewing Angle: 60°
• Lens Type: Diffused, Tinted
• Lens Style: Round with Domed Top
• Lens Size: 3mm, T-1
• Mounting Type: Through Hole, Right Angle
• Configuration: Single

Two substitute parts meet these criteria and are available as active alternatives to the obsolete LTL-4231NHNP.

Parameter Comparison

Engineering Selection Recommendations

Both LTL-4231NHBP and LTL-155GHA are qualified substitutes for the obsolete LTL-4231NHNP based on identical electrical and mechanical parameters.

LTL-4231NHBP is the direct substitute, maintaining the same base product number (LTL-4231) and offering improved compliance status. This part is ROHS3 compliant and REACH affected, with reduced moisture sensitivity (MSL 1 vs. MSL 2A). Inventory availability is substantial at 8,300 pieces.

LTL-155GHA is the manufacturer-recommended alternative, also active and ROHS3 compliant with MSL 1 rating. This part carries a different base product number (LTL-155) but maintains all critical electrical and mechanical specifications. Inventory availability is 904 pieces.

Both substitutes are suitable for direct replacement in applications requiring the LTL-4231NHNP specifications. Selection between them may be based on packaging requirements, inventory availability, or supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can LTL-4231NHBP and LTL-155GHA be used interchangeably with LTL-4231NHNP?

A: Yes. Both parts match all critical electrical and mechanical parameters: 565nm wavelength, 30mA current, 2.1V voltage, 12.6mcd brightness, 60° viewing angle, 3mm T-1 through-hole right-angle mounting, and diffused green lens with domed top design.

Q: What is the difference between the two substitute parts?

A: The primary differences are base product number (LTL-4231 vs. LTL-155), moisture sensitivity level (both MSL 1 vs. original MSL 2A), and inventory availability. Both are active products with ROHS3 compliance.

Q: Does packaging differ between the substitutes?

A: Both substitute parts are supplied in Tray packaging. The original LTL-4231NHNP packaging specification was not provided in the technical data.

Q: Are there compliance differences between the substitutes?

A: LTL-4231NHBP is ROHS3 compliant and REACH affected. LTL-155GHA is ROHS3 compliant. Both meet current regulatory requirements for circuit board indicator applications.

Q: What is the moisture sensitivity implication?

A: Both substitutes have MSL 1 (Unlimited storage), compared to the original MSL 2A (4 weeks). This represents improved handling and storage flexibility with no negative impact on application performance.