MV3350 Yellow LED T-1 3/4 Through Hole - Equivalent & Substitute Parts

Part Overview

The MV3350 is a yellow LED indicator manufactured by onsemi, featuring a 5mm T-1 3/4 through-hole radial package with a clear domed lens. This component delivers 150mcd at 20mA test current with a forward voltage of 2.2V and a 24° viewing angle. The MV3350 is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	MV3350
Manufacturer	onsemi
Color	Yellow
Lens Transparency	Clear
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) (Typ)	2.2V
Current - Test	20mA
Millicandela Rating	150mcd
Viewing Angle	24°
Wavelength - Peak	585nm
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	8.89mm
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the MV3350 is determined by the following critical parameters:

Color: Yellow (589-605nm wavelength range acceptable)
Lens Transparency: Clear or diffused options
Package Type: T-1 3/4 through-hole radial configuration
Voltage - Forward (Vf): 1.9V to 2.2V nominal range
Current - Test: 20mA standard test condition
Mounting: Through-hole radial only
Lens Size: 5mm diameter

Substitute parts are grouped into two categories:

Category A - Direct Mechanical & Electrical Equivalents: Parts matching T-1 3/4 package, 2.0V-2.2V forward voltage, 20mA test current, and clear lens transparency. These provide pin-compatible replacement with minimal circuit redesign.

Category B - Functional Alternatives: Parts with compatible yellow wavelength and through-hole radial mounting but differing in lens transparency, brightness, or viewing angle. These require circuit validation for brightness and viewing angle compatibility.

Parameter Comparison

Part Number	Manufacturer	Color	Lens Transparency	Vf (Typ)	mcd Rating	Viewing Angle	Wavelength - Peak	Height (Max)	Product Status
MV3350	onsemi	Yellow	Clear	2.2V	150mcd	24°	585nm	8.89mm	Obsolete
4308H7	Visual Communications Company - VCC	Yellow	Clear	2.2V	140mcd	24°	583nm	9.19mm	Active
151051YS04000	Würth Elektronik	Yellow	Diffused	2.0V	450mcd	40°	592nm	8.95mm	Active
OVLLY8C7	TT Electronics/Optek Technology	Yellow	Clear	2.0V	980mcd	100°	589nm	6.80mm	Active
SSL-LX5063YC	Lumex Opto/Components Inc.	Yellow	Clear	2.1V	40mcd	30°	585nm	6.00mm	Active
SSL-LX5093YC	Lumex Opto/Components Inc.	Yellow	Clear	2.1V	40mcd	30°	585nm	8.60mm	Active
SSL-LX5093YD	Lumex Opto/Components Inc.	Yellow	Diffused	2.1V	30mcd	60°	585nm	8.60mm	Active
LTL2R3KFK	Lite-On Inc.	Orange	Clear	2.05V	700mcd	30°	605nm	8.70mm	Active
LTL2R3KFKS	Lite-On Inc.	Orange	Clear	2.05V	700mcd	30°	605nm	8.70mm	Active
5219284F	Dialight	Yellow	Diffused	10V	8mcd	60°	583nm	9.95mm	Active
5219321F	Dialight	Yellow	Diffused	1.9V	1.8mcd	50°	583nm	9.57mm	Active

Engineering Selection Recommendations

Primary Substitute - Direct Replacement: The 4308H7 from Visual Communications Company (VCC) is the closest direct substitute. It matches the MV3350 in forward voltage (2.2V), test current (20mA), viewing angle (24°), lens transparency (clear), and wavelength (583nm vs. 585nm). The brightness differential (140mcd vs. 150mcd) is within acceptable tolerance for indicator applications. The part is RoHS3 compliant and currently in active production status with 4,869 units in stock.

Secondary Substitute - Enhanced Brightness: The OVLLY8C7 from TT Electronics/Optek Technology provides significantly higher brightness (980mcd) with compatible forward voltage (2.0V) and clear lens. The wider viewing angle (100° vs. 24°) suits applications requiring broader visibility. This part is RoHS3 compliant and has the highest inventory availability (9,819 units).

Diffused Lens Alternative: The 151051YS04000 from Würth Elektronik offers diffused lens transparency with higher brightness (450mcd) and wider viewing angle (40°). Forward voltage is 2.0V with 20mA test current. This part is RoHS3 compliant and suitable for applications where diffused light distribution is preferred.

Low Brightness Applications: The SSL-LX5093YC and SSL-LX5063YC from Lumex provide significantly lower brightness (40mcd) with forward voltage of 2.1V and clear lens. These are suitable for applications requiring reduced brightness levels while maintaining the T-1 3/4 package form factor.

Not Recommended for Direct Substitution: The LTL2R3KFK and LTL2R3KFKS are orange LEDs (605nm peak wavelength) and should not be used as direct substitutes for yellow indication applications. The 5219284F operates at 10V forward voltage, incompatible with standard 2.2V circuits. The 5219321F has extremely low brightness (1.8mcd) and reduced test current (2mA), unsuitable for standard indicator applications.

Frequently Asked Questions (FAQ)

Q: Can I use the 4308H7 as a direct drop-in replacement for the MV3350? A: Yes. The 4308H7 matches the MV3350 in forward voltage (2.2V), test current (20mA), viewing angle (24°), and clear lens transparency. The brightness difference (140mcd vs. 150mcd) is negligible for indicator applications. No circuit modifications are required.

Q: What is the difference between clear and diffused lens options? A: Clear lens LEDs provide focused light output with narrower viewing angles and higher brightness concentration. Diffused lens LEDs scatter light over a wider viewing angle with lower peak brightness. Selection depends on application requirements for visibility range and light distribution.

Q: Why is the OVLLY8C7 brighter than the MV3350 if both are 20mA LEDs? A: Brightness (mcd rating) depends on LED die efficiency, lens design, and optical properties. The OVLLY8C7 uses a more efficient die and optimized lens geometry, delivering 980mcd versus the MV3350's 150mcd at identical test current.

Q: Can I substitute an orange LED (LTL2R3KFK) for the yellow MV3350? A: No. Orange (605nm) and yellow (585nm) are distinct colors with different wavelengths. Substitution would change the visual indication color, which is unacceptable in applications requiring specific color coding.

Q: What does "T-1 3/4" package mean? A: T-1 3/4 refers to the lens diameter (5mm) and overall package form factor for through-hole radial LEDs. All recommended substitutes maintain this standard package for mechanical compatibility.

Q: Are all substitute parts RoHS3 compliant? A: The primary substitutes (4308H7, OVLLY8C7, 151051YS04000, SSL-LX5093YC, SSL-LX5063YC) are RoHS3 compliant. The Dialight parts (5219284F, 5219321F) are also RoHS3 compliant. Verify compliance documentation for specific procurement requirements.

Q: What is the viewing angle and why does it matter? A: Viewing angle defines the cone of light visibility from the LED. The MV3350 has a 24° viewing angle, meaning light is visible within a 24° cone. Wider angles (40°-100°) provide visibility from more directions but with lower peak brightness. Narrower angles concentrate brightness in a specific direction.

Q: Can I use the SSL-LX5093YD (diffused) instead of the clear lens MV3350? A: Yes, if your application permits diffused light distribution. The SSL-LX5093YD has compatible forward voltage (2.1V) and through-hole radial package. However, brightness is lower (30mcd vs. 150mcd) and viewing angle is wider (60° vs. 24°). Verify that these optical characteristics meet your application requirements.

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