HLMP-C423 Equivalent & Substitute Parts

Part Overview

The HLMP-C423 is an orange LED indicator manufactured by Broadcom Limited, designed for through-hole mounting applications. This T-1 3/4 (5mm) radial LED operates at 1.9V forward voltage with a 170mcd brightness rating and 605nm dominant wavelength. The product is currently active and ROHS3 compliant. Substitute parts may be required due to inventory constraints, application-specific color requirements, or design modifications that necessitate alternative optical or electrical characteristics.

Substiute Parts

HLMP-C423

Broadcom LimitedIn Stock: 3190HLMP-C423 Datasheet

Current PartRFQ

5219251F

DialightIn Stock: 7575219251F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HLMP-C423 is determined by the following critical parameters:

• Mounting Type: Through-hole radial configuration required
• Lens Size: 5mm package form factor (T-1 3/4)
• Electrical Compatibility: Forward voltage and test current ratings
• Optical Characteristics: Color, brightness (millicandela), and wavelength
• Compliance: ROHS3 and REACH status
• Product Status: Active status preferred for long-term availability

The identified substitute part, 5219251F (Dialight), shares the same mounting type, package category, and compliance certifications. However, this substitute differs in color (green vs. orange), forward voltage (2.65V vs. 1.9V), test current (10mA vs. 20mA), and brightness rating (70mcd vs. 170mcd). Substitution is valid only when the application permits these electrical and optical variations.

Parameter Comparison

Engineering Selection Recommendations

Both the HLMP-C423 and 5219251F maintain active product status and full compliance with ROHS3 and REACH regulations, ensuring regulatory acceptability for new designs and long-term supply continuity.

Selection between these parts must account for the following electrical and optical differences:

• Forward Voltage Difference: The 5219251F requires 0.75V higher forward voltage (2.65V vs. 1.9V), necessitating circuit redesign if current-limiting resistor values are fixed.
• Test Current Difference: The 5219251F operates at half the test current (10mA vs. 20mA), reducing power consumption but also affecting brightness perception.
• Brightness Difference: The HLMP-C423 provides 170mcd compared to 5219251F at 70mcd, a significant reduction in luminous intensity.
• Color Difference: Orange (605nm) versus green (565nm) represents a fundamental optical change and is suitable only for applications where color coding is not critical or where green indication is acceptable.
• Physical Dimensions: Both parts fit standard 5mm LED mounting holes, though the 5219251F is slightly taller (9.18mm vs. 8.91mm).

The 5219251F is a valid substitute only when the application permits green indication, higher forward voltage operation, and reduced brightness output.

Frequently Asked Questions (FAQ)

Q: Can the 5219251F directly replace the HLMP-C423 without circuit modification?

A: No. The 5219251F requires 2.65V forward voltage compared to the HLMP-C423 at 1.9V. If the circuit uses a fixed current-limiting resistor, the resistor value must be recalculated to accommodate the higher voltage drop. Additionally, the reduced test current (10mA vs. 20mA) may require resistor adjustment to maintain desired brightness.

Q: What is the primary limitation of using the 5219251F as a substitute?

A: The color change from orange to green is the primary limitation. The 5219251F also delivers significantly lower brightness (70mcd vs. 170mcd). Substitution is valid only for applications where green indication is functionally acceptable and reduced brightness does not compromise visibility requirements.

Q: Are both parts suitable for new designs?

A: Yes. Both the HLMP-C423 and 5219251F carry active product status and maintain full ROHS3 and REACH compliance, making them suitable for new designs with appropriate long-term availability expectations.

Q: Do both parts use the same mounting footprint?

A: Both parts are through-hole radial LEDs with 5mm package form factors and fit standard LED mounting holes. The 5219251F is 0.27mm taller (9.18mm vs. 8.91mm), which is negligible for most PCB layouts but should be verified for height-constrained applications.

Q: What viewing angle difference exists between these parts?

A: The viewing angles are nearly identical: HLMP-C423 at 25° and 5219251F at 24°. This difference is not significant for typical indicator applications.