WP7104SRC/E Equivalent & Substitute Parts

Part Overview

The WP7104SRC/E is a red LED indicator component manufactured by Kingbright, classified as a T-1 through-hole discrete LED with a 3mm domed lens. This part operates at a forward voltage of 1.85V and produces 800 millicandela at 20mA test current with a dominant wavelength of 640nm.

The WP7104SRC/E is designated as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability for production, and support ongoing maintenance of systems utilizing this LED indicator.

Substiute Parts

WP7104SRC/E

KingbrightIn Stock: 1042WP7104SRC/E Datasheet

Current PartRFQ

WP710A10SEC/E

KingbrightIn Stock: 3335WP710A10SEC/E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the WP7104SRC/E are identified based on strict alignment with the following critical parameters:

Mechanical Compatibility:

• Lens size: 3mm, T-1 form factor
• Lens style: Round with domed top
• Mounting type: Through hole radial configuration
• Physical dimensions: 2.90mm diameter, 5.90mm maximum height

Optical Compatibility:

• Color: Red spectrum
• Lens transparency: Clear

Electrical Compatibility:

• Test current: 20mA
• Forward voltage range: Compatible with circuit design tolerances
• Wavelength: Red spectrum (dominant wavelength 621nm–640nm range)

Regulatory & Environmental:

• RoHS3 compliance
• MSL rating: 1 (Unlimited)
• REACH unaffected status

The WP710A10SEC/E meets all mechanical, optical, and regulatory criteria for substitution. Differences in forward voltage (2V vs. 1.85V), millicandela rating (2400mcd vs. 800mcd), and viewing angle (30° vs. 34°) are within acceptable engineering tolerances for LED indicator applications and do not preclude substitution in standard circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: WP710A10SEC/E

The WP710A10SEC/E is the designated equivalent for the obsolete WP7104SRC/E. This substitute maintains identical mechanical form factor, mounting configuration, and regulatory compliance status. The WP710A10SEC/E is currently in active production with confirmed inventory availability (3266 pieces in stock).

Compliance Basis: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for new designs and legacy system support. MSL rating of 1 (Unlimited) on both parts indicates identical moisture handling requirements.

Electrical Considerations: The forward voltage differential of 0.15V (1.85V to 2V) is typical within red LED indicator specifications and accommodates standard circuit design margins. The increased millicandela rating (2400mcd vs. 800mcd) provides enhanced brightness margin without requiring circuit modification. The 4° viewing angle reduction (34° to 30°) remains within acceptable tolerance for indicator applications.

Availability & Production Status: Selection of the WP710A10SEC/E addresses the obsolescence of the original part while maintaining design continuity through identical mechanical and optical characteristics.

Frequently Asked Questions (FAQ)

Q: Can the WP710A10SEC/E be used as a direct replacement for the WP7104SRC/E in existing PCB designs?

A: Yes. Both parts share identical mechanical dimensions (2.90mm diameter, 5.90mm height), radial through-hole mounting configuration, and T-1 3mm lens form factor. PCB footprints and mechanical mounting are fully compatible.

Q: What is the impact of the 0.15V forward voltage difference between these parts?

A: The forward voltage increase from 1.85V to 2V is within standard engineering tolerance for red LED indicator circuits. Existing current-limiting resistor values will continue to function within acceptable operating parameters. No circuit redesign is required.

Q: Does the higher millicandela rating (2400mcd vs. 800mcd) affect circuit operation?

A: No. The millicandela rating describes light output intensity at the specified test current (20mA). Both parts operate at identical test current. The increased brightness of the WP710A10SEC/E provides additional visual margin without requiring circuit modification.

Q: Are there any differences in environmental or regulatory compliance?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). Environmental and regulatory requirements are fully aligned.

Q: What is the significance of the 4° viewing angle difference?

A: The WP7104SRC/E provides a 34° viewing angle while the WP710A10SEC/E provides 30°. This 4° reduction is negligible for standard indicator applications and does not impact functional performance in typical circuit designs.

Q: Why is the WP7104SRC/E listed as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of this specific part number. The WP710A10SEC/E represents the active production equivalent within the Kingbright WP710 LED series, ensuring continued component availability and supply chain continuity.

Q: What packaging format is available for the WP710A10SEC/E?

A: The WP710A10SEC/E is supplied in bulk packaging, suitable for production assembly and component procurement workflows.