MV54643 LED Green Diffused T-1 Through Hole Equivalent & Substitute Parts

Part Overview

The MV54643 is a green diffused LED indicator from onsemi, designed for through-hole mounting applications requiring discrete 2.2V green indication. This component features a 3mm T-1 lens form factor with 5mcd brightness rating and 90° viewing angle. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the original electrical specifications, mechanical form factor, and mounting requirements.

Key Parameters

Parameter	MV54643 Specification
Color	Green
Lens Transparency	Diffused
Lens Size	3mm, T-1
Voltage - Forward (Vf) Typical	2.2V
Current - Test	20mA
Millicandela Rating	5mcd
Viewing Angle	90°
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	6.30mm
Wavelength - Peak	562nm

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Color: Green (all substitutes must be green)
Lens Transparency: Diffused (optical diffusion characteristic must match)
Lens Size: 3mm, T-1 form factor (mechanical compatibility)
Voltage - Forward (Vf): 2.2V ±0.1V tolerance (circuit compatibility)
Current - Test: 20mA (operational current rating)
Mounting Type: Through Hole (assembly compatibility)
Package / Case: Radial (lead configuration)

Substitute parts are grouped into two categories based on these parameters:

Category A - Direct Electrical & Optical Match (Vf 2.1-2.2V, 20mA test current, diffused lens):

HLMP-1503-C0002 (Broadcom Limited)
HLMP-1503-D0000 (Broadcom Limited)
SLI-343M8G3F (Rohm Semiconductor)
SLI-343P8G3F (Rohm Semiconductor)
SLR-332MG3F (Rohm Semiconductor)
SLR-343MG3F (Rohm Semiconductor)
SLR-343PG3F (Rohm Semiconductor)

Category B - Reduced Current Rating (Vf 2.1V, 10mA test current):

HLMP-1503 (Broadcom Limited)

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	Current - Test	mcd Rating	Viewing Angle	Lens Transparency	Height (Max)	Product Status	RoHS Status
MV54643	onsemi	2.2V	20mA	5mcd	90°	Diffused	6.30mm	Obsolete	Not specified
HLMP-1503	Broadcom Limited	2.1V	10mA	1mcd	60°	Diffused	6.35mm	Active	ROHS3 Compliant
HLMP-1503-C0002	Broadcom Limited	2.1V	10mA	2.6mcd	60°	Diffused	6.35mm	Active	ROHS3 Compliant
HLMP-1503-D0000	Broadcom Limited	2.1V	10mA	4.2mcd	60°	Diffused	6.35mm	Active	ROHS3 Compliant
SLI-343M8G3F	Rohm Semiconductor	2.2V	20mA	150mcd	40°	Diffused	5.60mm	Active	ROHS3 Compliant
SLI-343P8G3F	Rohm Semiconductor	2.2V	20mA	22mcd	40°	Diffused	5.60mm	Active	ROHS3 Compliant
SLR-332MG3F	Rohm Semiconductor	2.1V	10mA	16mcd	85°	Diffused	4.60mm	Active	ROHS3 Compliant
SLR-343MG3F	Rohm Semiconductor	2.1V	10mA	16mcd	40°	Diffused	5.60mm	Active	ROHS3 Compliant
SLR-343PG3F	Rohm Semiconductor	2.1V	10mA	6.3mcd	40°	Diffused	5.60mm	Last Time Buy	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

SLI-343P8G3F and SLI-343M8G3F from Rohm Semiconductor are the preferred substitutes. Both maintain the original 2.2V forward voltage and 20mA test current specifications. These parts are in active production status with ROHS3 compliance certification. SLI-343P8G3F provides 22mcd brightness, closely matching the original 5mcd specification within acceptable tolerance for indicator applications. SLI-343M8G3F offers higher brightness at 150mcd for applications requiring enhanced visibility.

Secondary Substitutes (For Reduced Current Applications):

HLMP-1503-D0000 from Broadcom Limited is suitable for applications where 10mA test current is acceptable. This part provides 4.2mcd brightness with active product status and ROHS3 compliance. The forward voltage of 2.1V is within acceptable tolerance for most indicator circuits.

Alternative for Wide Viewing Angle Requirements:

SLR-332MG3F from Rohm Semiconductor maintains an 85° viewing angle, closest to the original 90° specification. This part operates at 2.1V with 10mA test current and provides 16mcd brightness. Height is reduced to 4.60mm, which may require mechanical verification in space-constrained applications.

Not Recommended:

SLR-343PG3F carries Last Time Buy status, indicating discontinued production. HLMP-1503 operates at reduced 10mA current with only 1mcd brightness, making it unsuitable for direct replacement in most applications.

Frequently Asked Questions (FAQ)

Q: Can I use HLMP-1503-C0002 as a direct replacement for MV54643?

A: HLMP-1503-C0002 is mechanically and optically compatible but operates at 2.1V forward voltage and 10mA test current versus the original 2.2V and 20mA. Circuit redesign may be required if the original design depends on the 20mA current specification. Brightness is 2.6mcd compared to 5mcd original.

Q: What is the key difference between SLI-343M8G3F and SLI-343P8G3F?

A: Both parts maintain 2.2V forward voltage and 20mA test current. The primary difference is brightness: SLI-343M8G3F provides 150mcd while SLI-343P8G3F provides 22mcd. Select based on required brightness for your application. Both have identical mechanical form factor and electrical specifications.

Q: Will SLR-332MG3F fit in the same PCB footprint as MV54643?

A: SLR-332MG3F has a maximum height of 4.60mm versus MV54643 at 6.30mm. The lens size is 3.20mm diameter versus 3mm for the original. Mechanical verification is required to confirm PCB hole spacing and component clearance compatibility.

Q: Are all substitute parts RoHS compliant?

A: All active production substitutes listed carry ROHS3 compliance certification. SLR-343PG3F is ROHS3 compliant but carries Last Time Buy status. The original MV54643 RoHS status is not specified in available documentation.

Q: What viewing angle should I select if my application requires wide-angle indication?

A: The original MV54643 provides 90° viewing angle. SLR-332MG3F offers the closest alternative at 85°. Most other substitutes provide 40° or 60° viewing angles, which are narrower and may not be suitable for wide-angle indication requirements.

Q: Can I substitute a clear lens LED for the diffused lens MV54643?

A: No. The MV54643 specifies diffused lens transparency. Clear lens alternatives such as SLI-343M8C3F and SLI-343P8C3F have different optical characteristics and are not direct substitutes for diffused lens applications.

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