WP934FG/2GD Equivalent & Substitute Parts

Part Overview

The WP934FG/2GD is an active LED circuit board indicator manufactured by Kingbright. This dual-level green LED features a 3mm T-1 through-hole package with diffused, tinted lens and domed top configuration. The component operates at 2.2V with 25mA current rating and delivers 30mcd brightness at a 40° viewing angle. This part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1). Finding equivalent substitute parts becomes necessary when managing supply chain continuity, inventory optimization, or when the primary manufacturer part experiences extended lead times or discontinuation.

Substiute Parts

WP934FG/2GD

KingbrightIn Stock: 1814WP934FG/2GD Datasheet

Current PartRFQ

SSF-LXH240GGD

Lumex Opto/Components Inc.In Stock: 81566SSF-LXH240GGD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WP934FG/2GD is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Color: Green (x 2)
• Configuration: 2 High
• Wavelength - Peak: 565nm
• Voltage Rating: 2.2V
• Lens Type: Diffused, Tinted
• Lens Style: Round with Domed Top
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

• Current: Substitute may operate at equal or lower current rating
• Millicandela Rating: Substitute may equal or exceed brightness
• Viewing Angle: Substitute may equal or exceed viewing angle
• Lens Size: Substitute may vary within mechanical compatibility constraints
• Mounting Orientation: Substitute may include right-angle configuration

The SSF-LXH240GGD from Lumex Opto/Components Inc. qualifies as a substitute based on matching all mandatory parameters while offering enhanced performance characteristics in brightness and viewing angle, with a reduced current requirement and modified lens diameter.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - Product Status: Both WP934FG/2GD and SSF-LXH240GGD maintain active product status with full manufacturer support and availability.

Compliance Alignment: Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements for industrial and commercial applications. Both carry MSL 1 (unlimited) moisture sensitivity ratings, indicating no special storage or handling requirements.

Electrical Compatibility: The SSF-LXH240GGD operates at identical voltage (2.2V) and reduced current (20mA versus 25mA). This lower current draw is compatible with existing circuit designs using current-limiting resistors. The substitute will generate less heat and reduce power consumption in the application.

Optical Performance: The substitute part delivers superior optical characteristics: 40mcd versus 30mcd brightness and 60° versus 40° viewing angle. These enhancements do not create incompatibility; they represent performance improvements suitable for applications requiring enhanced visibility or wider light distribution.

Mechanical Considerations: The 2.90mm lens diameter of the substitute is 0.1mm smaller than the 3mm original. This minor dimensional difference remains within standard PCB mounting hole tolerances and does not affect mechanical fit or electrical connection integrity. The substitute's right-angle mounting option provides additional design flexibility not present in the original part.

Selection Criteria: Select SSF-LXH240GGD when supply constraints affect WP934FG/2GD availability, when reduced power consumption is beneficial, or when enhanced brightness and viewing angle improve application performance. The substitute maintains full electrical and mechanical compatibility while offering performance advantages.

Frequently Asked Questions (FAQ)

Q: Can SSF-LXH240GGD directly replace WP934FG/2GD in existing circuit designs?

A: Yes. Both parts operate at identical 2.2V voltage rating and 2 High configuration. The substitute's 20mA current requirement is lower than the original 25mA, making it compatible with existing current-limiting circuits. No circuit modifications are required.

Q: What is the impact of the 0.1mm lens diameter difference?

A: The SSF-LXH240GGD features a 2.90mm lens diameter compared to the WP934FG/2GD's 3mm diameter. This 0.1mm difference falls within standard PCB through-hole manufacturing tolerances and does not affect mechanical fit, electrical connection, or optical performance in typical applications.

Q: Does the higher brightness of the substitute part create compatibility issues?

A: No. The SSF-LXH240GGD delivers 40mcd versus the original 30mcd. Higher brightness represents a performance enhancement that does not create electrical or mechanical incompatibility. Applications benefit from improved visibility without requiring circuit modifications.

Q: Are there differences in viewing angle between these parts?

A: Yes. The SSF-LXH240GGD provides a 60° viewing angle compared to the WP934FG/2GD's 40° angle. The wider viewing angle improves light distribution and visibility from off-axis positions. This enhancement does not affect compatibility.

Q: What is the significance of the right-angle mounting option on the substitute?

A: The SSF-LXH240GGD offers right-angle mounting configuration in addition to standard through-hole mounting. This provides design flexibility for applications requiring horizontal LED orientation on PCBs. Standard through-hole vertical mounting remains available.

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

A: Yes. Both WP934FG/2GD and SSF-LXH240GGD are ROHS3 compliant, REACH unaffected, and carry identical MSL 1 (unlimited) moisture sensitivity ratings. They meet identical regulatory requirements for industrial and commercial applications.

Q: What is the wavelength specification for both parts?

A: Both parts feature 565nm peak wavelength, confirming identical green color specification. This ensures consistent color appearance and optical characteristics across both components.

Q: How does the reduced current consumption of the substitute affect power budget?

A: The SSF-LXH240GGD operates at 20mA versus the original 25mA, representing a 20% reduction in current draw. This lower consumption reduces power dissipation, heat generation, and overall system power requirements without affecting brightness or functionality.