Dialight 5219251F LED Green Clear 5MM T/H - Equivalent & Substitute Parts

Part Overview

The Dialight 5219251F is an active green LED indication component designed for through-hole mounting applications. This discrete 2.65V radial LED operates at 10mA test current and delivers 70 millicandela brightness with a 24° viewing angle. The component is RoHS3 compliant, REACH unaffected, and classified as MSL 1 (unlimited moisture sensitivity). Substitute parts are identified to address inventory availability, performance requirements, or specific application constraints while maintaining functional compatibility within the green LED indication category.

Substiute Parts

5219251F

DialightIn Stock: 7575219251F Datasheet

Current PartRFQ

HLMP-3519-F0002

Broadcom LimitedIn Stock: 59483HLMP-3519-F0002 Datasheet

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HLMP-3590

Broadcom LimitedIn Stock: 20825HLMP-3590 Datasheet

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HLMP-3950

Broadcom LimitedIn Stock: 10443HLMP-3950 Datasheet

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HLMP-C423

Broadcom LimitedIn Stock: 3190HLMP-C423 Datasheet

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HLMP-C515

Broadcom LimitedIn Stock: 3051HLMP-C515 Datasheet

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HLMP-C523

Broadcom LimitedIn Stock: 5943HLMP-C523 Datasheet

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HLMP-CM2H-130DD

Broadcom LimitedIn Stock: 11019HLMP-CM2H-130DD Datasheet

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WP7113GT

KingbrightIn Stock: 25129WP7113GT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Dialight 5219251F are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Color: Green
• Lens Transparency: Clear
• Mounting Type: Through Hole
• Package / Case: Radial
• RoHS Status: ROHS3 Compliant
• Product Status: Active

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) Typical: Range 2.1V to 3.1V
• Current - Test: 10mA to 20mA
• Viewing Angle: 15° to 25°
• Wavelength - Peak: 565nm to 570nm
• Millicandela Rating: 25mcd to 300mcd

Substitute parts meeting all primary criteria are listed below. Secondary parameters vary to accommodate different application requirements for brightness intensity, forward voltage, and viewing angle characteristics.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original Dialight 5219251F component. Selection among substitutes depends on application-specific requirements:

Direct Brightness Match (70mcd): HLMP-3519-F0002 provides equivalent millicandela output at reduced forward voltage (2.1V vs. 2.65V) and identical 10mA test current, making it suitable for direct replacement in power-sensitive applications.

Lower Brightness Requirement: HLMP-3590 operates at 55mcd with 2.2V forward voltage and 20mA test current, appropriate for applications where reduced brightness is acceptable.

Higher Brightness Requirement: HLMP-3950 (265mcd), HLMP-C515 (300mcd), and HLMP-CM2H-130DD (25500mcd) accommodate applications requiring increased luminous intensity. HLMP-CM2H-130DD delivers significantly higher brightness at 3.1V forward voltage.

Moderate Brightness with Narrow Viewing Angle: HLMP-C515 provides 300mcd at 15° viewing angle for focused indication applications.

Moderate Brightness with Wide Viewing Angle: HLMP-C523 delivers 170mcd at 25° viewing angle for distributed visibility requirements.

Alternative Manufacturer: WP7113GT (Kingbright) provides 80mcd output at 2.2V forward voltage with 20° viewing angle, offering inventory diversity from a different manufacturer.

Frequently Asked Questions (FAQ)

Q: Can HLMP-3519-F0002 replace the Dialight 5219251F directly? A: Yes. Both components deliver 70mcd brightness at 24° viewing angle with identical peak wavelength (565nm). HLMP-3519-F0002 operates at lower forward voltage (2.1V vs. 2.65V) and identical test current (10mA), making it functionally compatible for direct substitution.

Q: What is the difference between T-1 3/4 and 5mm package designations? A: T-1 3/4 and 5mm refer to the same physical package size (5mm diameter lens). Both designations describe radial through-hole LEDs with identical mounting compatibility.

Q: Why does HLMP-CM2H-130DD have significantly higher millicandela rating? A: HLMP-CM2H-130DD (25500mcd) uses advanced LED die technology delivering substantially higher luminous intensity than standard green LEDs. This component is suitable only for applications requiring extreme brightness; it is not a direct replacement for general indication purposes.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the original Dialight 5219251F.

Q: What forward voltage range is acceptable for substitution? A: Substitute parts operate within 2.1V to 3.1V forward voltage range. Circuit design must accommodate the specific forward voltage of the selected substitute to ensure proper current limiting and brightness performance.

Q: Can I use HLMP-C423 (orange LED) as a substitute? A: No. HLMP-C423 is an orange LED (605nm wavelength) and does not meet the primary substitution criterion of green color. It is not functionally compatible for green indication applications.

Q: How does viewing angle affect component selection? A: Viewing angle determines the cone of light distribution. Narrower angles (15°) concentrate brightness in a focused direction; wider angles (25°) distribute light across a broader area. Select based on application visibility requirements.