MV7842 Equivalent & Substitute Parts

Part Overview

The MV7842 is a red LED indicator in T-1 (3mm) through-hole package manufactured by onsemi. This discrete 2.1V radial LED is designed for indication applications with a 150mcd brightness rating and 60° viewing angle. The product is currently obsolete, making equivalent substitutes necessary for ongoing design requirements and component sourcing. Substitute parts must maintain compatibility with the T-1 through-hole mounting standard and preserve core electrical and optical characteristics within acceptable tolerances.

Substiute Parts

MV7842

onsemiIn Stock: 663MV7842 Datasheet

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HLMP-NG07

Broadcom LimitedIn Stock: 6497HLMP-NG07 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MV7842 is determined by the following critical parameters:

• Physical Compatibility: Lens size (3mm, T-1), mounting type (through-hole radial), and lens style (round with domed top) must match exactly to ensure mechanical fit in existing PCB layouts.
• Optical Compatibility: Color (red) and lens transparency (clear) must be identical. Peak wavelength must fall within the red spectrum range (620–650nm).
• Electrical Compatibility: Forward voltage (Vf) and test current must be within acceptable operating ranges for the application circuit. Viewing angle (60°) ensures consistent light distribution.
• Environmental Compliance: Moisture sensitivity level (MSL 1) and REACH/RoHS status must meet or exceed the original specification.

The HLMP-NG07 qualifies as a substitute based on matching physical dimensions, optical properties, electrical operating parameters, and environmental compliance standards.

Parameter Comparison

Engineering Selection Recommendations

The HLMP-NG07 is a direct substitute for the MV7842 based on matching mechanical, optical, and electrical parameters. Key considerations:

• Product Status: The HLMP-NG07 is active and in production, ensuring long-term availability and supply chain stability compared to the obsolete MV7842.
• Electrical Differences: The HLMP-NG07 operates at 1.9V typical forward voltage versus 2.1V for the MV7842. This 0.2V difference is within acceptable tolerance for most indication circuits and may reduce power consumption.
• Brightness Difference: The HLMP-NG07 provides 90.2mcd versus 150mcd for the MV7842. Applications requiring the original brightness level should evaluate circuit design adjustments or alternative parts.
• Compliance: Both parts meet MSL 1, REACH Unaffected, and EAR99 ECCN standards, ensuring equivalent environmental and regulatory compliance.
• Physical Fit: Height difference of 0.1mm (6.30mm vs. 6.20mm) is negligible for through-hole applications and does not affect PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the HLMP-NG07 replace the MV7842 in existing designs? A: Yes. Both parts share identical T-1 through-hole radial packaging, red color, clear lens, 60° viewing angle, and 20mA test current. Physical and optical compatibility is confirmed.

Q: What is the impact of the 0.2V forward voltage difference? A: The HLMP-NG07 operates at 1.9V versus the MV7842's 2.1V. This difference is typical between LED manufacturers and does not affect compatibility in standard indication circuits. Verify that your current-limiting resistor design accommodates this variation.

Q: Why is the HLMP-NG07 brightness lower (90.2mcd vs. 150mcd)? A: Brightness differences reflect manufacturing variations and design differences between onsemi and Broadcom. If the original 150mcd brightness is critical, evaluate circuit modifications or request alternative parts with higher brightness ratings.

Q: Are there packaging differences between these parts? A: The MV7842 is supplied in standard packaging, while the HLMP-NG07 is supplied in bulk packaging. Both use identical T-1 radial through-hole packages suitable for PCB assembly.

Q: Do both parts meet the same environmental standards? A: Yes. Both parts are MSL 1 (Unlimited), REACH Unaffected, and classified as EAR99 for export control purposes.

Q: What is the wavelength difference between these LEDs? A: The MV7842 has a 630nm peak wavelength, while the HLMP-NG07 is 635nm. Both fall within the red spectrum and are visually indistinguishable for indication applications.