WP7113LSECK/J4 Equivalent & Substitute Parts

Part Overview

The WP7113LSECK/J4 is an orange LED indicator with 605nm dominant wavelength, designed for through-hole mounting in T-1 3/4 (5mm) form factor. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design requirements and production continuity. The part operates at 1.8V forward voltage with 550mcd brightness rating and 20° viewing angle, suitable for standard indication applications requiring discrete LED solutions.

Substiute Parts

WP7113LSECK/J4

KingbrightIn Stock: 780WP7113LSECK/J4 Datasheet

Current PartRFQ

WP7113SECK/J4

KingbrightIn Stock: 16840WP7113SECK/J4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WP7113LSECK/J4 is determined by strict alignment of the following parameters:

Primary Substitution Criteria:

• Dominant wavelength: 605nm (orange spectrum)
• Lens size and form factor: 5mm T-1 3/4 through-hole
• Lens style: Round with domed top
• Viewing angle: 20°
• Mounting configuration: Radial through-hole
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

Secondary Parameters (May Vary):

• Forward voltage (Vf): 1.8V to 2.2V range acceptable for standard indication circuits
• Millicandela rating: 550mcd to 7000mcd (brightness variation based on application requirements)
• Current rating: 2mA to 20mA (dependent on circuit design)

The WP7113SECK/J4 qualifies as a direct substitute based on matching all primary criteria while maintaining regulatory compliance and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The WP7113SECK/J4 is the active equivalent for the obsolete WP7113LSECK/J4. Both parts maintain identical mechanical compatibility and regulatory compliance status (ROHS3 Compliant, REACH Unaffected). The substitute part is currently in active production with substantial inventory availability (16,739 pcs), ensuring supply chain continuity.

Circuit design modifications are required when substituting these parts due to differences in forward voltage (1.8V vs. 2.2V) and test current (2mA vs. 20mA). The WP7113SECK/J4 operates at higher brightness (7000mcd vs. 550mcd), which may necessitate current-limiting resistor recalculation to maintain appropriate indication intensity for the target application.

Both parts are manufactured by Kingbright and share identical physical dimensions, lens characteristics, and wavelength specifications, confirming mechanical and optical interchangeability at the PCB level.

Frequently Asked Questions (FAQ)

Q: Can WP7113SECK/J4 be used as a direct drop-in replacement for WP7113LSECK/J4?

A: Mechanical and optical compatibility is confirmed. However, circuit-level modifications are required. The substitute part requires different current-limiting resistor values due to higher forward voltage (2.2V vs. 1.8V) and higher brightness rating (7000mcd vs. 550mcd). Recalculate series resistor values based on the target circuit voltage and desired LED current.

Q: What are the key differences between these two parts?

A: The primary differences are forward voltage (1.8V vs. 2.2V), test current (2mA vs. 20mA), and brightness output (550mcd vs. 7000mcd). All other parameters—wavelength, lens size, form factor, viewing angle, and compliance certifications—are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both WP7113LSECK/J4 and WP7113SECK/J4 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the packaging difference?

A: WP7113LSECK/J4 is supplied in standard packaging, while WP7113SECK/J4 is supplied in bulk packaging. This does not affect component functionality or electrical characteristics.

Q: Can I use the same PCB footprint for both parts?

A: Yes. Both parts are T-1 3/4 (5mm) through-hole radial components with identical physical dimensions (5.00mm diameter, 8.60mm maximum height), confirming PCB footprint compatibility.

Q: Why is the WP7113LSECK/J4 obsolete?

A: Product status reflects manufacturer discontinuation. The WP7113SECK/J4 is the active production equivalent and should be used for new designs and ongoing production requirements.