Equivalent & Substitute Parts for WP73JB/YDA LED Circuit Board Indicator

Part Overview

The WP73JB/YDA is a yellow diffused LED circuit board indicator manufactured by Kingbright, designed for through-hole, right-angle mounting applications. This component is an active product with full RoHS3 compliance and unlimited moisture sensitivity rating. Alternative components may be required due to inventory constraints, specific mechanical fit requirements, or performance parameter variations in target applications.

Substiute Parts

WP73JB/YDA

KingbrightIn Stock: 1769WP73JB/YDA Datasheet

Current PartRFQ

SSF-LXH100YD

Lumex Opto/Components Inc.In Stock: 4498SSF-LXH100YD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the WP73JB/YDA is permissible when the following core parameters align with application requirements:

Critical Matching Parameters:

• Color: Yellow
• Configuration: Single
• Voltage Rating: 2.1V
• Mounting Type: Through Hole, Right Angle
• Lens Type: Diffused, Tinted
• Lens Style: Round with Domed Top
• Product Status: Active
• RoHS3 Compliance: Required

Allowable Variation Parameters:

• Current Rating: Substitute may differ (WP73JB/YDA operates at 30mA; alternatives may operate at different rated currents)
• Millicandela Rating: Substitute may differ (WP73JB/YDA rated at 25mcd; alternatives may provide different brightness levels)
• Wavelength - Peak: Substitute may vary within yellow spectrum (WP73JB/YDA at 590nm; alternatives may range 585-595nm)
• Lens Size: Substitute may differ in diameter (WP73JB/YDA at 4.80mm; alternatives may be 5mm or similar standard sizes)

The SSF-LXH100YD from Lumex Opto/Components Inc. qualifies as a substitute based on matching critical parameters while allowing variation in current rating, brightness output, wavelength, and lens diameter.

Parameter Comparison

Engineering Selection Recommendations

Both the WP73JB/YDA and SSF-LXH100YD are active products with full RoHS3 compliance, REACH unaffected status, and EAR99 classification. Selection between these components should be based on the following provided specifications:

WP73JB/YDA Selection Criteria:

• Applications requiring 30mA rated current
• Designs specifying 4.80mm lens diameter
• Brightness requirement of 25mcd
• Peak wavelength specification of 590nm

SSF-LXH100YD Selection Criteria:

• Applications requiring 20mA rated current
• Designs accommodating 5mm lens diameter (T-1 3/4 standard)
• Brightness requirement of 30mcd
• Peak wavelength specification of 585nm

Both components share identical voltage rating (2.1V), viewing angle (60°), lens type (diffused, tinted), and mounting configuration (through-hole, right-angle). Mechanical fit within the PCB layout and current budget of the driving circuit are the primary differentiators for component selection.

Frequently Asked Questions (FAQ)

Q: Can SSF-LXH100YD replace WP73JB/YDA in any application?

A: Substitution is valid only when the application circuit accommodates the 20mA rated current of the SSF-LXH100YD (versus 30mA for WP73JB/YDA) and the PCB layout accepts the 5mm lens diameter (versus 4.80mm). Both components operate at identical 2.1V voltage rating and share the same mounting type and lens characteristics.

Q: What is the difference in brightness between these two components?

A: The WP73JB/YDA is rated at 25mcd, while the SSF-LXH100YD is rated at 30mcd. The SSF-LXH100YD provides higher luminous intensity despite lower current consumption.

Q: Are there wavelength differences between these LEDs?

A: Yes. The WP73JB/YDA has a peak wavelength of 590nm, while the SSF-LXH100YD has a peak wavelength of 585nm. Both fall within the yellow spectrum and are visually similar, with the SSF-LXH100YD shifted slightly toward the green-yellow range.

Q: Do both components meet the same compliance standards?

A: Yes. Both WP73JB/YDA and SSF-LXH100YD are RoHS3 compliant, REACH unaffected, and classified as EAR99. Both have MSL rating of 1 (unlimited moisture sensitivity).

Q: What is the primary mechanical difference?

A: The WP73JB/YDA features a 4.80mm diameter lens, while the SSF-LXH100YD uses a standard 5mm (T-1 3/4) lens. This difference affects PCB hole sizing and mechanical fit within the circuit board layout.

Q: Can I use SSF-LXH100YD if my circuit is designed for 30mA?

A: The SSF-LXH100YD is rated for 20mA operation. Using it in a circuit designed for 30mA would exceed its rated current specification and is not recommended based on the provided electrical parameters.