Dialight 5219450 LED GREEN/RED DIFFUSED 5MM T/H - Equivalent & Substitute Parts

Part Overview

The Dialight 5219450 is a through-hole mounted dual-color LED indicator featuring green and red LEDs in a common cathode configuration with a diffused white lens. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The part delivers 8mcd green and 5mcd red output at standard test currents of 10mA per color, suitable for status indication applications requiring discrete color switching.

Substiute Parts

5219450

DialightIn Stock: 11425219450 Datasheet

Current PartRFQ

5219450F

DialightIn Stock: 19005219450F Datasheet

DirectRFQ

5BC-3

Bivar Inc.In Stock: 10625BC-3 Datasheet

SimilarRFQ

SSL-LX5099GIW

Lumex Opto/Components Inc.In Stock: 1001SSL-LX5099GIW Datasheet

SimilarRFQ

WP59EGW

KingbrightIn Stock: 12372WP59EGW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Dialight 5219450 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Dual-color green/red LED configuration with common cathode topology
• Through-hole radial mounting with 3-lead package
• Diffused lens with white color
• Forward voltage ranges: Green 2.1V–2.3V, Red 2.0V–2.1V
• Test current capability: minimum 10mA per color
• Viewing angle: 40° or greater

Substitute Categories:

Direct Equivalent (Packaging Variant): 5219450F is the active production variant of the base 5219450, maintaining identical electrical specifications and physical form factor while offering RoHS3 compliance.

Functional Equivalents (Size/Brightness Variants): Parts 5BC-3, SSL-LX5099GIW, and WP59EGW are T-1 3/4 form factor (5mm) alternatives with higher brightness ratings (35–60mcd green, 35–55mcd red) and increased test currents (20mA per color). These accommodate applications requiring higher luminous intensity while maintaining common cathode configuration and diffused lens characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select Dialight 5219450F when maintaining the original 4.83mm lens diameter and 8mcd/5mcd brightness specifications is required. This part is the active production equivalent with RoHS3 compliance, eliminating the regulatory constraints of the obsolete 5219450.

For Higher Brightness Applications: The Bivar 5BC-3, Lumex SSL-LX5099GIW, and Kingbright WP59EGW are suitable when increased luminous intensity is acceptable. All three operate at 20mA test current per color and deliver 35–60mcd green and 35–55mcd red output. These parts use the T-1 3/4 form factor (5mm standard) and are RoHS3 compliant. Forward voltage compatibility remains within acceptable ranges (2.1–2.2V green, 2.0V red).

Compliance Considerations: All active substitute parts (5219450F, 5BC-3, SSL-LX5099GIW, WP59EGW) carry RoHS3 compliance certification. The original 5219450 is RoHS non-compliant and obsolete; new designs should transition to compliant alternatives.

Viewing Angle Trade-offs: The 5BC-3 features a narrower 40° viewing angle compared to the original 65°. The SSL-LX5099GIW and WP59EGW maintain 60° viewing angles, providing closer optical performance to the original specification.

Frequently Asked Questions (FAQ)

Q: Can 5219450F be used as a direct drop-in replacement for 5219450? A: Yes. The 5219450F maintains identical electrical specifications (2.3V green, 2.1V red at 10mA test current), physical form factor (4.83mm lens diameter), and brightness ratings (8mcd green, 5mcd red). The primary difference is product status (active vs. obsolete) and RoHS3 compliance.

Q: What are the key differences between the 5219450 and the T-1 3/4 alternatives? A: The T-1 3/4 parts (5BC-3, SSL-LX5099GIW, WP59EGW) use a larger 5mm standard lens form factor, operate at 20mA test current per color, and deliver higher brightness (35–60mcd green, 35–55mcd red). Forward voltages remain compatible (2.1–2.2V green, 2.0V red). These parts are suitable when increased luminous intensity is required and the larger physical size is acceptable.

Q: Are all substitute parts RoHS compliant? A: Yes. All active substitute parts listed (5219450F, 5BC-3, SSL-LX5099GIW, WP59EGW) are RoHS3 compliant. The original 5219450 is RoHS non-compliant and obsolete.

Q: Which substitute offers the closest optical performance to the original 5219450? A: The Dialight 5219450F is the direct equivalent, maintaining the 65° viewing angle and identical brightness specifications. For T-1 3/4 alternatives, the Lumex SSL-LX5099GIW and Kingbright WP59EGW both provide 60° viewing angles, closely matching the original optical characteristics.

Q: Can I use a higher brightness part in place of the 5219450? A: Yes, provided circuit design accommodates the increased test current (20mA vs. 10mA per color) and the larger physical form factor. Forward voltage compatibility remains within acceptable ranges. Verify that PCB layout and current-limiting resistor values are adjusted accordingly.

Q: What is the moisture sensitivity level for these parts? A: All parts listed carry MSL rating 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.