Dialight 5553301 LED Circuit Board Indicator - Equivalent & Substitute Parts

Part Overview

The Dialight 5553301 is a 2.00mm diameter green LED circuit board indicator designed for through-hole mounting applications. It features a clear lens with domed top, rated at 2.4V and 20mA, with a peak wavelength of 565nm and 1mcd brightness rating. The part is currently obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications requiring compatible green LED indicators with equivalent electrical and mechanical characteristics.

Substiute Parts

5553301

DialightIn Stock: 11375553301 Datasheet

Current PartRFQ

5553301F

DialightIn Stock: 17925553301F Datasheet

DirectRFQ

AM2520EJ/SGD

KingbrightIn Stock: 945AM2520EJ/SGD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Dialight 5553301 are classified based on electrical and mechanical compatibility within the following parameters:

Direct Substitutes maintain identical or functionally equivalent specifications across all critical parameters: color (green), wavelength (565nm), configuration (single), current rating (20mA), voltage rating (2.4V), lens size (2.00mm), lens type (clear), lens style (round with domed top), mounting type (through hole), and viewing angle (40°).

Similar Substitutes share the same color, wavelength, configuration, viewing angle, and mounting category but permit controlled variations in current rating (±5mA tolerance), voltage rating (±0.2V tolerance), lens size (±0.2mm tolerance), lens type (diffused or tinted variants), and brightness rating (millicandela). These variations remain within acceptable operating parameters for circuit board indicator applications.

Parameter Comparison

Engineering Selection Recommendations

Dialight 5553301F is the primary substitute for the obsolete Dialight 5553301. This part maintains identical electrical specifications (2.4V, 20mA) and mechanical form factor (2.00mm clear lens, round domed top, through-hole mounting). The 5553301F is currently in active production status with ROHS3 compliance, addressing regulatory requirements that the original part does not meet. Inventory availability is confirmed at 1688 pieces.

Kingbright AM2520EJ/SGD serves as an alternative substitute where design flexibility permits controlled parameter variations. This part introduces a right-angle mounting option and higher brightness rating (12mcd versus 1mcd), with a slightly reduced lens size (1.80mm versus 2.00mm) and diffused tinted lens type. Current rating increases to 25mA and voltage rating decreases to 2.2V. The part maintains ROHS3 compliance and active production status. This option is suitable for applications where the increased brightness and alternative mounting orientation provide functional advantages, provided circuit board layout and current-limiting resistor values are adjusted accordingly.

Frequently Asked Questions (FAQ)

Q: Can Dialight 5553301F directly replace Dialight 5553301 without circuit modifications?

A: Yes. The 5553301F maintains identical voltage (2.4V), current (20mA), lens size (2.00mm), lens type (clear), and mounting configuration (through-hole). No circuit modifications are required for direct substitution.

Q: What are the key differences between Dialight 5553301F and Kingbright AM2520EJ/SGD?

A: The primary differences are: lens size (2.00mm versus 1.80mm), lens type (clear versus diffused tinted), current rating (20mA versus 25mA), voltage rating (2.4V versus 2.2V), brightness (1mcd versus 12mcd), and mounting style (straight versus right-angle). The Kingbright part requires circuit board layout changes due to right-angle mounting and resistor value adjustment for the 25mA current rating.

Q: Is the Kingbright AM2520EJ/SGD suitable for applications requiring the original 1mcd brightness specification?

A: No. The Kingbright part delivers 12mcd brightness, which exceeds the original specification by a factor of 12. Applications with strict brightness requirements should use the Dialight 5553301F to maintain the 1mcd rating.

Q: What compliance advantages does the 5553301F offer over the original 5553301?

A: The 5553301F is ROHS3 compliant, whereas the original 5553301 is RoHS non-compliant. Both parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can the Kingbright AM2520EJ/SGD be used in existing through-hole PCB layouts designed for straight-mount LEDs?

A: No. The AM2520EJ/SGD features right-angle mounting, requiring PCB layout modifications. The Dialight 5553301F is the appropriate choice for existing through-hole layouts without design changes.

Q: Are all substitute parts available in equivalent packaging quantities?

A: Packaging differs between parts. The original 5553301 and 5553301F are available in bulk quantities (1030 and 1688 pieces respectively). Verify packaging specifications with your supplier for production requirements.