WP63IT Red LED T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The WP63IT is an active production red LED indicator manufactured by Kingbright, configured as a through-hole radial component in T-1 3/4 package format. This discrete red LED operates at 2V forward voltage with 30mcd luminous intensity and 617nm dominant wavelength, designed for standard indication applications. Substitute parts are identified to address inventory availability, extended lead times, or specific application parameter requirements while maintaining functional compatibility within the T-1 3/4 through-hole LED category.

Substiute Parts

WP63IT

KingbrightIn Stock: 1065WP63IT Datasheet

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HLMP-D155

Broadcom LimitedIn Stock: 9365HLMP-D155 Datasheet

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SLR-56VC3F

Rohm SemiconductorIn Stock: 3145SLR-56VC3F Datasheet

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SSL-LX5063ID

Lumex Opto/Components Inc.In Stock: 16627SSL-LX5063ID Datasheet

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SSL-LX5093HT

Lumex Opto/Components Inc.In Stock: 1666SSL-LX5093HT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WP63IT are identified based on strict parameter compatibility within the red LED T-1 3/4 through-hole category. The substitution logic is determined by the following key parameters:

Primary Compatibility Criteria:

• Package format: T-1 3/4 radial through-hole configuration
• Color: Red LED indication
• Mounting type: Through-hole PCB assembly
• Forward voltage range: 1.7V to 2V (acceptable operating window)
• Lens style: Round with domed top

Secondary Compatibility Parameters:

• Millicandela rating: 10mcd to 40mcd (luminous intensity tolerance)
• Viewing angle: 24° to 60° (directional spread tolerance)
• Wavelength dominant: 617nm to 640nm (red spectrum range)
• Current test rating: 1mA to 20mA (test condition variation)
• Lens transparency: Clear or diffused (optical finish variation)

All substitute parts maintain ROHS3 compliance, active product status, and radial package configuration. Substitution is valid when the receiving application can accommodate the specified parameter variations without functional degradation.

Parameter Comparison

Engineering Selection Recommendations

WP63IT Primary Application: The WP63IT operates as the baseline reference for red LED indication in T-1 3/4 through-hole applications. All substitute parts maintain active production status and ROHS3 compliance, confirming regulatory equivalence.

HLMP-D155 (Broadcom Limited): This substitute operates at reduced forward voltage (1.7V vs. 2V) and lower test current (1mA vs. 20mA), resulting in lower luminous intensity (10mcd vs. 30mcd). The narrower viewing angle (24° vs. 30°) and greater maximum height (12.44mm vs. 6.00mm) require verification for space-constrained applications. Suitable for low-power indication circuits where reduced brightness is acceptable.

SLR-56VC3F (Rohm Semiconductor): This substitute maintains identical forward voltage (2V) and similar luminous intensity (25mcd vs. 30mcd) with wider viewing angle (40° vs. 30°). The test current is reduced to 10mA. Maximum height of 8.90mm exceeds the WP63IT baseline. Wavelength dominant specification (630nm) falls within acceptable red spectrum range. Suitable for applications requiring broader viewing angle with comparable brightness.

SSL-LX5063ID (Lumex Opto/Components Inc.): This substitute features diffused lens transparency (vs. clear), higher luminous intensity (40mcd vs. 30mcd), and significantly wider viewing angle (60° vs. 30°). Forward voltage and test current match the WP63IT specification. Maximum height equals the baseline (6.00mm). Diffused lens characteristic alters optical appearance and light distribution. Suitable for applications requiring maximum light diffusion and wider angular coverage.

SSL-LX5093HT (Lumex Opto/Components Inc.): This substitute maintains clear lens transparency, identical forward voltage (2V), and matching viewing angle (30°). Luminous intensity is slightly reduced (25mcd vs. 30mcd). Test current matches baseline (20mA). Maximum height of 8.60mm exceeds baseline. Wavelength peak specification (700nm) represents longer wavelength within red spectrum. Suitable as direct functional equivalent with minor brightness reduction.

Frequently Asked Questions (FAQ)

Q: Can HLMP-D155 replace WP63IT in all applications?

A: HLMP-D155 operates at lower forward voltage (1.7V vs. 2V) and significantly reduced luminous intensity (10mcd vs. 30mcd). Substitution is valid only in applications where reduced brightness is acceptable and circuit design accommodates the lower voltage requirement. The greater maximum height (12.44mm) must be verified against PCB layout constraints.

Q: What is the primary difference between SSL-LX5063ID and WP63IT?

A: SSL-LX5063ID features a diffused lens (vs. clear) and higher luminous intensity (40mcd vs. 30mcd) with substantially wider viewing angle (60° vs. 30°). Both maintain 2V forward voltage and 20mA test current. The diffused lens produces scattered light distribution rather than focused beam, altering visual appearance and light pattern.

Q: Are all substitute parts physically compatible with WP63IT PCB footprints?

A: All substitute parts use identical T-1 3/4 radial through-hole package format and 5mm lens diameter. However, maximum heights vary: WP63IT and SSL-LX5063ID are 6.00mm, SLR-56VC3F is 8.90mm, SSL-LX5093HT is 8.60mm, and HLMP-D155 is 12.44mm. Applications with height-constrained PCB layouts must verify maximum height compatibility before substitution.

Q: Which substitute provides the closest electrical match to WP63IT?

A: SSL-LX5093HT provides the closest electrical match, maintaining identical forward voltage (2V), test current (20mA), and viewing angle (30°). Luminous intensity is slightly reduced (25mcd vs. 30mcd). This substitute offers direct functional equivalence with minimal circuit redesign requirements.

Q: Do all substitute parts meet the same environmental compliance standards as WP63IT?

A: All substitute parts listed are ROHS3 compliant and maintain active product status, confirming equivalent environmental and regulatory compliance. REACH status is unaffected for all parts. Moisture sensitivity level is 1 (unlimited) across all options.

Q: What viewing angle considerations apply when selecting a substitute?

A: WP63IT specifies 30° viewing angle. Substitutes range from 24° (HLMP-D155, narrower) to 60° (SSL-LX5063ID, wider). Narrower angles concentrate light in a focused beam; wider angles distribute light across a broader area. Application requirements for light distribution pattern must be evaluated before substitution.

Q: Can SLR-56VC3F be used as a direct drop-in replacement?

A: SLR-56VC3F maintains 2V forward voltage and similar luminous intensity (25mcd vs. 30mcd), making it functionally compatible. However, the wider viewing angle (40° vs. 30°) and increased maximum height (8.90mm vs. 6.00mm) require verification for specific application constraints. Circuit-level compatibility is confirmed; physical layout verification is necessary.