WP7104SEC Orange LED T-1 Through Hole - Equivalent & Substitute Parts

Part Overview

The WP7104SEC is a 3mm through-hole orange LED manufactured by Kingbright, designed for indication applications with a dominant wavelength of 601nm. This component features a clear, domed lens and operates at 2V forward voltage with a 20mA test current, delivering 1300mcd luminous intensity.

The WP7104SEC is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing production requirements, maintenance operations, and design continuity where this component was originally specified.

Substiute Parts

WP7104SEC

KingbrightIn Stock: 1200WP7104SEC Datasheet

Current PartRFQ

WP710A10SEC

KingbrightIn Stock: 23292WP710A10SEC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WP7104SEC must satisfy the following criteria based on allowed electrical and mechanical parameters:

Mandatory Matching Parameters:

• Lens Size: 3mm, T-1
• Mounting Type: Through Hole, Radial
• Voltage - Forward (Vf): 2V Typical
• Current - Test: 20mA
• Wavelength - Dominant: 601nm
• Lens Color: Colorless
• Lens Transparency: Clear
• Viewing Angle: 34°
• Package / Case: Radial
• RoHS Status: ROHS3 Compliant

Allowable Variation:

• Millicandela Rating: Substitutes with lower brightness ratings (800mcd or higher) are acceptable where the original 1300mcd specification does not represent a hard minimum requirement in the application circuit.
• Product Status: Active substitutes are preferred over obsolete parts for long-term supply assurance.
• Packaging Format: Bulk packaging is acceptable as an alternative to standard packaging.

The WP710A10SEC meets all mandatory parameters and represents a direct functional substitute with reduced brightness output.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: WP710A10SEC

The WP710A10SEC is the recommended substitute for the obsolete WP7104SEC. This part maintains identical electrical characteristics (2V forward voltage, 20mA test current, 601nm dominant wavelength) and mechanical specifications (3mm T-1 through-hole radial package, 2.90mm diameter, 5.90mm maximum height).

The key difference is the millicandela rating: WP710A10SEC delivers 800mcd compared to the original 1300mcd. This 38% reduction in brightness is acceptable in applications where the original specification does not mandate maximum brightness as a critical performance requirement. In indication-only applications, 800mcd typically provides sufficient visibility.

Supply and Compliance Advantages:

• WP710A10SEC carries Active product status, ensuring long-term availability and supply chain stability
• Both parts maintain ROHS3 compliance and REACH unaffected status
• Bulk packaging of WP710A10SEC supports high-volume production requirements
• Moisture sensitivity level remains at MSL 1 (Unlimited) for both parts

Circuit Compatibility:

No circuit modifications are required. The identical forward voltage and test current specifications mean existing current-limiting resistor values and power supply designs remain valid. Direct pin-for-pin substitution is possible without redesign.

Frequently Asked Questions (FAQ)

Q: Can WP710A10SEC be used as a direct replacement for WP7104SEC in existing designs?

A: Yes. Both parts share identical forward voltage (2V), test current (20mA), lens size (3mm T-1), mounting type (through-hole radial), and wavelength (601nm). No circuit modifications or PCB redesign is required. The primary difference is brightness output (800mcd vs. 1300mcd).

Q: What is the impact of the lower millicandela rating on application performance?

A: The WP710A10SEC produces 800mcd versus the original 1300mcd. For indication applications where the LED serves as a status light or visual indicator, 800mcd typically provides adequate visibility under standard indoor and outdoor lighting conditions. Applications requiring maximum brightness for extreme visibility conditions should evaluate brightness requirements against the 800mcd specification.

Q: Are there any packaging differences between these parts?

A: The WP7104SEC is supplied in standard packaging, while WP710A10SEC is supplied in bulk packaging. Both use identical T-1 radial through-hole packages with 2.90mm diameter and 5.90mm maximum height. Bulk packaging does not affect component performance or PCB assembly compatibility.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both WP7104SEC and WP710A10SEC are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is MSL 1 (Unlimited) for both parts, indicating no special storage or handling requirements.

Q: Why is WP7104SEC classified as obsolete?

A: The WP7104SEC is no longer in active production. WP710A10SEC represents the current active equivalent from Kingbright's product line, offering the same electrical and mechanical specifications with improved supply availability.

Q: Can WP710A10SEC be used in high-brightness applications?

A: WP710A10SEC is rated at 800mcd. Applications requiring brightness levels above 800mcd should not use this substitute. Verify the original design brightness requirement before substitution.

Q: Are there any lead-time advantages to using WP710A10SEC?

A: Yes. WP710A10SEC maintains active product status with 23,218 pieces in stock, compared to WP7104SEC which is obsolete with limited remaining inventory (1,124 pieces). WP710A10SEC offers superior supply chain reliability for ongoing production.