LED Circuit Board Indicator WP934RS/GD Equivalent & Substitute Parts

Part Overview

The WP934RS/GD is an active, ROHS3-compliant LED circuit board indicator manufactured by Kingbright. This single green diffused LED features a 3mm T-1 through-hole right-angle mounting configuration with a round domed top lens. The component operates at 2.2V with a 25mA forward current and delivers 30 millicandela brightness at a 40° viewing angle with a peak wavelength of 565nm.

Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across different manufacturers while accommodating minor parameter variations within acceptable engineering tolerances for circuit board indicator applications.

Substiute Parts

WP934RS/GD

KingbrightIn Stock: 964WP934RS/GD Datasheet

Current PartRFQ

SSF-LXH103GD

Lumex Opto/Components Inc.In Stock: 19419SSF-LXH103GD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WP934RS/GD is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

• Color: Green
• Peak Wavelength: 565nm
• Configuration: Single
• Lens Type: Diffused, Tinted
• Lens Style: Round with Domed Top
• Lens Size: 3mm, T-1
• Mounting Type: Through Hole, Right Angle
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Status: REACH Unaffected

Allowable Parameter Variations:

• Forward Current: ±5mA tolerance
• Forward Voltage: ±0.1V tolerance
• Millicandela Rating: ±5mcd tolerance
• Viewing Angle: ±20° tolerance

The SSF-LXH103GD from Lumex Opto/Components Inc. qualifies as a substitute part based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

WP934RS/GD (Kingbright) is the primary component specification. Selection of this part is appropriate when:

• Original equipment manufacturer (OEM) specifications explicitly require Kingbright sourcing
• Design validation has been completed with this specific manufacturer part number
• Supply chain continuity with the original supplier is required

SSF-LXH103GD (Lumex Opto/Components Inc.) is a qualified substitute. Selection of this part is appropriate when:

• WP934RS/GD is unavailable or subject to extended lead times
• Circuit design accommodates the 20mA forward current specification (5mA reduction from primary part)
• Circuit design accommodates the 2.1V forward voltage specification (0.1V reduction from primary part)
• The increased 60° viewing angle is compatible with or beneficial to the application
• Both parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL 1 environmental rating

Both parts are active products with current manufacturing status and full regulatory compliance documentation available.

Frequently Asked Questions (FAQ)

Q: Can SSF-LXH103GD be used as a direct replacement for WP934RS/GD in existing circuit board designs?

A: SSF-LXH103GD is electrically and mechanically compatible with WP934RS/GD. The 5mA lower forward current and 0.1V lower forward voltage require circuit verification to confirm that current-limiting resistor values and power supply specifications remain within acceptable operating ranges. The mechanical form factor, mounting configuration, and optical properties are identical.

Q: What is the significance of the 20° difference in viewing angle between these parts?

A: WP934RS/GD specifies a 40° viewing angle, while SSF-LXH103GD specifies a 60° viewing angle. A wider viewing angle (60°) provides visibility across a broader range of observer positions. This difference is within acceptable tolerance for circuit board indicator applications and may be advantageous in designs where visibility from multiple angles is desired.

Q: Are there any compliance or environmental differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. No compliance or environmental differences exist between WP934RS/GD and SSF-LXH103GD.

Q: What packaging format is available for both parts?

A: Both WP934RS/GD and SSF-LXH103GD are supplied in bulk packaging format suitable for automated assembly and manual component selection.

Q: How should forward current differences be handled in circuit design?

A: The SSF-LXH103GD operates at 20mA forward current compared to 25mA for WP934RS/GD. Circuit designs using current-limiting resistors must be recalculated to accommodate the 20mA specification. Power dissipation will be proportionally lower with the substitute part, which may improve thermal performance in high-density applications.