MV64521 Equivalent & Substitute Parts

Part Overview

The MV64521 is a green LED indicator in T-1 3/4 (5mm) through-hole package manufactured by onsemi. This component is designed for discrete LED indication applications with a forward voltage of 2.2V and 100mcd brightness rating. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production support. Suitable alternatives must maintain compatibility with the T-1 3/4 form factor, through-hole mounting, and similar electrical characteristics to ensure direct replacement capability.

Key Parameters

Parameter	MV64521 Specification
Manufacturer	onsemi
Color	Green
Lens Transparency	Clear
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) (Typ)	2.2V
Current - Test	20mA
Millicandela Rating	100mcd
Viewing Angle	35°
Mounting Type	Through Hole
Wavelength - Peak	562nm
Package / Case	Radial
Height (Max)	8.89mm
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the MV64521 is determined by the following critical parameters:

Primary Compatibility Criteria:

Lens Size: 5mm, T-1 3/4 (physical form factor)
Mounting Type: Through Hole (PCB interface)
Color: Green (optical specification)
Lens Transparency: Clear (optical characteristic)
Package / Case: Radial (lead configuration)

Electrical Compatibility Range:

Voltage - Forward (Vf): 2.1V to 2.2V (acceptable tolerance for series resistor adjustment)
Current - Test: 10mA to 20mA (operational range)
Wavelength - Peak: 559nm to 572nm (green spectrum range)

Secondary Considerations:

Millicandela Rating: 40mcd to 170mcd (brightness variation acceptable based on application requirements)
Viewing Angle: 15° to 60° (application-dependent selection)
Height (Max): 8.89mm to 10.08mm (PCB clearance verification required)

Substitute parts meeting all primary criteria and falling within electrical compatibility ranges are classified as direct equivalents. Parts with diffused lens transparency or significantly different voltage ratings are classified as functional alternatives requiring circuit verification.

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	Current - Test	mcd Rating	Viewing Angle	Wavelength - Peak	Height (Max)	Lens Transparency	Product Status
MV64521	onsemi	2.2V	20mA	100mcd	35°	562nm	8.89mm	Clear	Obsolete
HLMP-C523-J0002	Broadcom Limited	2.2V	20mA	170mcd	25°	569nm	8.91mm	Clear	Active
HLMP-C615-G0001	Broadcom Limited	2.2V	20mA	45mcd	15°	560nm	8.91mm	Clear	Active
LTL-307GE-012	Lite-On Inc.	2.1V	20mA	60mcd	40°	565nm	9.85mm	Clear	Active
LTL-4234-012	Lite-On Inc.	2.1V	20mA	60mcd	16°	565nm	9.85mm	Clear	Active
SLR-56MC3F	Rohm Semiconductor	2.1V	10mA	40mcd	40°	572nm	8.90mm	Clear	Not For New Designs
SSL-LX5093GT-11	Lumex Opto/Components Inc.	2.2V	20mA	50mcd	30°	565nm	9.73mm	Clear	Active
Z-212G	JKL Components Corp.	2.2V	10mA	50mcd	30°	565nm	14.60mm	Clear	Active
4302H5-5V	Visual Communications Company - VCC	5V	12mA	8mcd	60°	565nm	10.08mm	Diffused	Active
4302H5-12V	Visual Communications Company - VCC	12V	13mA	8mcd	60°	565nm	10.08mm	Diffused	Active

Engineering Selection Recommendations

Direct Equivalents (Recommended for Replacement):

HLMP-C523-J0002 (Broadcom Limited) is the primary recommended substitute. It matches the MV64521 in forward voltage (2.2V), test current (20mA), and lens transparency (clear). The higher brightness rating (170mcd vs. 100mcd) provides improved visibility margin. Product status is active with ROHS3 compliance. Viewing angle is narrower (25° vs. 35°), requiring verification for application-specific requirements.

SSL-LX5093GT-11 (Lumex Opto/Components Inc.) provides equivalent electrical characteristics with 2.2V forward voltage and 20mA test current. Brightness rating (50mcd) is lower than the original, suitable for applications where reduced brightness is acceptable. Product status is active with ROHS3 compliance and unlimited moisture sensitivity rating.

Compatible Alternatives (Electrical Compatibility Verified):

LTL-307GE-012 and LTL-4234-012 (Lite-On Inc.) both operate at 2.1V forward voltage with 20mA test current, within acceptable tolerance for series resistor adjustment. Both are active products with ROHS3 compliance. LTL-307GE-012 offers 40° viewing angle matching the original specification more closely. LTL-4234-012 has narrower 16° viewing angle. Height specifications (9.85mm) require PCB clearance verification.

Functional Alternatives (Application-Dependent):

Z-212G (JKL Components Corp.) matches 2.2V forward voltage but operates at reduced test current (10mA). Height specification (14.60mm) is significantly greater than the original, requiring mechanical clearance verification. RoHS compliance status is non-compliant.

SLR-56MC3F (Rohm Semiconductor) operates at 2.1V with reduced test current (10mA). Product status is "Not For New Designs," limiting suitability for new applications. ROHS3 compliant.

Not Recommended:

4302H5-5V and 4302H5-12V (Visual Communications Company - VCC) have diffused lens transparency and significantly different voltage ratings (5V and 12V respectively). These require complete circuit redesign and are not suitable as direct replacements.

Frequently Asked Questions (FAQ)

Q: Can HLMP-C523-J0002 be used as a direct replacement for MV64521?

A: Yes. HLMP-C523-J0002 meets all primary compatibility criteria: T-1 3/4 form factor, through-hole mounting, green color, clear lens transparency, and radial package. Electrical parameters match (2.2V forward voltage, 20mA test current). The higher brightness rating (170mcd) is advantageous. Verify viewing angle requirements (25° vs. 35° original) for your application.

Q: What is the difference between clear and diffused lens transparency?

A: Clear lenses provide directional light output with defined viewing angles. Diffused lenses scatter light over a wider area with reduced peak brightness. The MV64521 uses clear transparency. Substitutes must maintain clear transparency unless application requirements explicitly allow diffused alternatives.

Q: Are the Lite-On LTL series parts compatible?

A: LTL-307GE-012 and LTL-4234-012 are electrically compatible with forward voltage of 2.1V (within tolerance of 2.2V original). Both support 20mA test current. Primary difference is viewing angle: LTL-307GE-012 offers 40° (closer to original 35°), while LTL-4234-012 is narrower at 16°. Height is 9.85mm versus 8.89mm original, requiring PCB clearance verification.

Q: Why is product status important in selecting a substitute?

A: Product status indicates manufacturer support and availability. "Active" status ensures long-term supply and continued compliance certifications. "Obsolete" parts like the MV64521 have limited availability. "Not For New Designs" indicates the manufacturer discourages new applications. For new designs, prioritize active status parts.

Q: Can I use 4302H5-5V as a substitute?

A: No. The 4302H5-5V has a 5V forward voltage requirement versus 2.2V original, requiring complete circuit redesign. Diffused lens transparency differs from the clear lens of MV64521. Brightness is significantly reduced (8mcd vs. 100mcd). This is a functional alternative only for applications with different voltage supplies and brightness requirements.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component meets EU environmental standards restricting lead, mercury, cadmium, and other hazardous substances. All recommended substitutes carry ROHS3 compliance except Z-212G, which is RoHS non-compliant.

Q: How do I verify height compatibility?

A: Compare maximum height specifications against available PCB clearance. MV64521 height is 8.89mm. Substitutes range from 8.90mm to 14.60mm. Measure clearance above the component location on your PCB. If clearance is limited, prioritize HLMP-C523-J0002 (8.91mm) or HLMP-C615-G0001 (8.91mm).

Q: What is wavelength-peak and why does it vary?

A: Wavelength-peak indicates the dominant color emission in nanometers. MV64521 is 562nm (green). Substitutes range from 559nm to 572nm, all within the green spectrum. Variation is imperceptible to human vision. Select based on application requirements; if color matching is critical, choose substitutes within ±5nm of original specification.

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