LED Circuit Board Indicator 5510407 Equivalent & Substitute Parts

Part Overview

The Dialight 5510407 is a 3mm red LED circuit board indicator designed for through-hole, right-angle mounting applications. This component features a diffused, tinted lens with a domed top, rated at 2V and 10mA, delivering 10 millicandela at a 45° viewing angle with a peak wavelength of 650nm. The part is currently classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Active alternatives from Dialight, Bivar Inc., and Kingbright provide functional continuity while maintaining core electrical and mechanical compatibility.

Substiute Parts

5510407

DialightIn Stock: 12325510407 Datasheet

Current PartRFQ

5510407F

DialightIn Stock: 36605510407F Datasheet

DirectRFQ

H101CRD

Bivar Inc.In Stock: 1088H101CRD Datasheet

SimilarRFQ

WP934EW/ID

KingbrightIn Stock: 3934WP934EW/ID Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5510407 is determined by the following critical parameters: color (red), lens size (3mm), lens style (round with domed top), mounting type (through hole, right angle), and configuration (single). Voltage rating (2V nominal) and current rating (10mA) establish the primary electrical operating window. Millicandela rating, wavelength, and viewing angle define the optical performance envelope within which substitutes must operate.

The substitute parts are grouped into two categories:

Direct Substitute (5510407F): Identical manufacturer (Dialight), same series (551), matching all critical parameters with active product status and RoHS3 compliance.

Similar Substitutes (H101CRD, WP934EW/ID): Alternative manufacturers (Bivar Inc., Kingbright) with compatible mechanical form factors and electrical characteristics. These parts maintain the 3mm through-hole right-angle configuration and red color specification but exhibit variations in wavelength, millicandela rating, current rating, and viewing angle within acceptable operational ranges.

Parameter Comparison

Engineering Selection Recommendations

5510407F (Dialight): This is the primary substitute for the obsolete 5510407. It maintains identical electrical and optical specifications (10mA, 10mcd, 650nm, 45° viewing angle) while offering active product status and RoHS3 compliance. Packaging is available in bulk format. This part is recommended for direct replacement in all applications where the original 5510407 was specified.

H101CRD (Bivar Inc.): This substitute is suitable for applications where reduced brightness (2mcd versus 10mcd) is acceptable. The 700nm wavelength produces a slightly deeper red appearance compared to the 650nm specification. The 40° viewing angle is narrower than the original 45°. Current rating is not specified. This part is appropriate for indicator applications where brightness is not a critical parameter and visual distinction is secondary.

WP934EW/ID (Kingbright): This substitute accommodates higher current applications (30mA versus 10mA) and delivers increased brightness (30mcd versus 10mcd). The 627nm wavelength is closer to the original specification than H101CRD. The 40° viewing angle is narrower than the original 45°. This part is suitable for applications requiring enhanced luminous intensity or where circuit design permits higher current draw.

All three substitutes maintain the 3mm through-hole right-angle mechanical form factor, red color, and MSL 1 rating. Selection should be based on specific application requirements for brightness, current capacity, and viewing angle.

Frequently Asked Questions (FAQ)

Q: Can the 5510407F directly replace the obsolete 5510407 without circuit modification?

A: Yes. The 5510407F maintains identical voltage rating (2V), current rating (10mA), millicandela rating (10mcd), wavelength (650nm), and viewing angle (45°). No circuit modification is required for direct substitution.

Q: What are the key differences between the H101CRD and the original 5510407?

A: The H101CRD operates at 2.1V (versus 2V), produces 2mcd (versus 10mcd), has a peak wavelength of 700nm (versus 650nm), and a viewing angle of 40° (versus 45°). Current rating for the H101CRD is not specified. These differences make it suitable only for applications where reduced brightness is acceptable.

Q: Is the WP934EW/ID suitable for the same circuit as the 5510407?

A: The WP934EW/ID operates at the same 2V rating but draws 30mA (versus 10mA). Circuit design must accommodate the higher current draw. The increased brightness (30mcd versus 10mcd) and similar wavelength (627nm versus 650nm) make it suitable for applications requiring enhanced visibility, provided the power supply and current-limiting resistor are adjusted accordingly.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 5510407F, H101CRD, and WP934EW/ID are all RoHS3 compliant. The original 5510407 RoHS status is not specified.

Q: What is the difference between the 3.00mm Dia and 3mm, T-1 lens size specifications?

A: Both specifications refer to the same 3mm lens diameter. The T-1 designation is a standard industry classification for this lens size. The mechanical form factor and mounting compatibility are identical.

Q: Do all substitutes have the same moisture sensitivity level?

A: Yes. The 5510407, 5510407F, H101CRD, and WP934EW/ID all have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Which substitute should be selected for a new design?

A: For new designs, the 5510407F is recommended as the primary choice due to identical specifications and active product status. If application requirements differ (higher brightness, higher current capacity, or reduced brightness), the WP934EW/ID or H101CRD may be selected based on specific performance needs.