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

Part Overview

The MV3350 is a yellow LED indicator manufactured by Everlight Electronics Co Ltd, designed for discrete indication applications in through-hole mounting configurations. This T-1 3/4 (5mm) package LED operates at 2.2V forward voltage with 150mcd brightness rating and features a clear, domed lens. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute components become necessary when primary inventory is unavailable, when design requirements permit alternative optical or electrical characteristics within acceptable tolerances, or when transitioning from obsolete product lines to active alternatives.

Key Parameters

Parameter	Value	Unit	Criticality
Color	Yellow	-	Critical
Lens Size	5mm, T-1 3/4	-	Critical
Mounting Type	Through Hole	-	Critical
Voltage - Forward (Vf) Typical	2.2V	V	High
Current - Test	20mA	mA	High
Millicandela Rating	150mcd	mcd	High
Lens Transparency	Clear	-	High
Viewing Angle	24°	degrees	Medium
Wavelength - Peak	585nm	nm	Medium
Package / Case	Radial	-	Critical
RoHS Status	ROHS3 Compliant	-	High

Substitute Part Grouping Explanation

Substitute parts for the MV3350 are classified into two categories based on parametric alignment:

Parametric Equivalents maintain all critical electrical and mechanical parameters within acceptable engineering tolerances:

Identical color (Yellow)
Identical lens size (5mm, T-1 3/4)
Identical mounting type (Through Hole)
Forward voltage within ±0.2V of 2.2V nominal
Test current at 20mA
Millicandela rating within ±20mcd of 150mcd
Clear lens transparency
Viewing angle within ±2° of 24°
Peak wavelength within ±5nm of 585nm

Similar Parts share the same form factor and color but exhibit measurable deviations in one or more electrical parameters. These parts are suitable only when application requirements permit relaxed specifications for brightness, lens transparency, or electrical characteristics.

The following parts meet substitution criteria based on provided parameters:

HLMP-C323 (Broadcom Limited): Parametric equivalent with higher brightness (170mcd) and slightly lower forward voltage (2.1V)
HLMP3850A (onsemi): Parametric equivalent with identical electrical specifications; product status is Obsolete
4308H7 (Visual Communications Company - VCC): Similar part with slightly lower brightness (140mcd) and different peak wavelength (583nm); Active status
5219321F (Dialight): Similar part with significantly different specifications including diffused lens, lower brightness (1.8mcd), and lower forward voltage (1.9V)

Parameter Comparison

Parameter	MV3350 (Main)	HLMP-C323	HLMP3850A	4308H7	5219321F
Manufacturer	Everlight Electronics	Broadcom Limited	onsemi	Visual Communications Company	Dialight
Color	Yellow	Yellow	Yellow	Yellow	Yellow
Lens Size	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	4.83mm Dia
Lens Transparency	Clear	Clear	Clear	Clear	Diffused
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Voltage - Forward (Vf) Typical	2.2V	2.1V	2.2V	2.2V	1.9V
Current - Test	20mA	20mA	20mA	20mA	2mA
Millicandela Rating	150mcd	170mcd	150mcd	140mcd	1.8mcd
Viewing Angle	24°	25°	24°	24°	50°
Wavelength - Peak	585nm	590nm	585nm	583nm	583nm
Height (Max)	8.89mm	8.91mm	12.19mm	9.19mm	9.57mm
Product Status	Active	Active	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: HLMP-C323 (Broadcom Limited)

HLMP-C323 is the recommended parametric equivalent for direct substitution. This part maintains Active product status with full RoHS3 compliance. Electrical parameters align within acceptable tolerances: forward voltage of 2.1V represents a 0.1V reduction from the MV3350 nominal 2.2V, and the 170mcd brightness rating exceeds the original 150mcd specification. Physical dimensions are nearly identical (8.91mm vs. 8.89mm maximum height). The viewing angle of 25° is within 1° of the original specification. Peak wavelength of 590nm is within 5nm of the MV3350 585nm specification. Inventory availability is substantial at 18,070 pieces.

Secondary Substitute: HLMP3850A (onsemi)

HLMP3850A provides identical electrical specifications to the MV3350, including 2.2V forward voltage, 20mA test current, and 150mcd brightness. However, this part carries Obsolete product status, indicating discontinued manufacturing and potential long-term supply constraints. Use only when HLMP-C323 is unavailable and long-term supply is not a consideration. RoHS compliance status is not specified in available data.

Tertiary Substitute: 4308H7 (Visual Communications Company - VCC)

4308H7 is suitable for applications where brightness tolerance permits a 10mcd reduction (140mcd vs. 150mcd). This part maintains Active status with RoHS3 compliance. Forward voltage and test current match the MV3350 specification exactly. Peak wavelength of 583nm represents a 2nm shift from the original 585nm. Lens color is listed as Colorless rather than Yellow, which may affect visual appearance in certain applications. Inventory availability is high at 4,869 pieces.

Not Recommended: 5219321F (Dialight)

5219321F exhibits significant deviations from MV3350 specifications and is not suitable for direct substitution. This part features a diffused lens (vs. clear), operates at 1.9V forward voltage (0.3V below specification), requires only 2mA test current (vs. 20mA), and provides only 1.8mcd brightness (98% reduction from 150mcd). The 50° viewing angle represents a substantial increase from the original 24°. While this part maintains Active status and RoHS3 compliance, the electrical and optical characteristics are fundamentally different and suitable only for applications with entirely different performance requirements.

Frequently Asked Questions (FAQ)

Q: Can HLMP-C323 be used as a direct drop-in replacement for MV3350?

A: Yes. HLMP-C323 maintains identical form factor (5mm T-1 3/4 through-hole), color (Yellow), and lens transparency (Clear). Electrical parameters are within acceptable engineering tolerances: 2.1V forward voltage versus 2.2V nominal, and 170mcd brightness versus 150mcd nominal. Physical dimensions are nearly identical (8.91mm vs. 8.89mm maximum height). The part is Active with full RoHS3 compliance.

Q: What is the significance of HLMP3850A being marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. While existing inventory may be available, future supply cannot be guaranteed. HLMP3850A should be used only when HLMP-C323 is unavailable and immediate replacement is required. For new designs or long-term production, HLMP-C323 is the preferred choice due to Active status.

Q: Why is 5219321F not recommended despite being Active and RoHS3 compliant?

A: 5219321F differs fundamentally in electrical and optical characteristics. The diffused lens (vs. clear), 1.9V forward voltage (vs. 2.2V), 2mA test current (vs. 20mA), and 1.8mcd brightness (vs. 150mcd) represent a different product category designed for different applications. This part is suitable only when application requirements specifically call for diffused optics and low-brightness indication.

Q: What is the impact of the 0.1V forward voltage difference between MV3350 and HLMP-C323?

A: A 0.1V reduction in forward voltage is within normal manufacturing tolerance for LED components and does not require circuit redesign. This difference represents approximately 4.5% variation from the 2.2V nominal specification. Standard current-limiting resistor calculations will accommodate this variance without performance degradation.

Q: Can 4308H7 be used if brightness is not critical to the application?

A: Yes, provided the application can tolerate 140mcd brightness (10mcd below the MV3350 specification). The Colorless lens designation (vs. Yellow) may result in different visual appearance; verify that this does not conflict with application requirements. All other electrical parameters match the MV3350 specification. The part maintains Active status and RoHS3 compliance.

Q: Are all substitute parts RoHS3 compliant?

A: HLMP-C323, 4308H7, and 5219321F are confirmed RoHS3 compliant. HLMP3850A RoHS compliance status is not specified in available documentation. Verify compliance status with the supplier before use in applications requiring RoHS certification.

Q: What is the viewing angle significance when comparing MV3350 to HLMP-C323?

A: MV3350 specifies 24° viewing angle; HLMP-C323 specifies 25°. This 1° difference is negligible for most indication applications and falls within normal manufacturing variation for LED optics. Both parts feature identical Round with Domed Top lens style, ensuring similar light distribution characteristics.

Q: Is height difference between MV3350 (8.89mm) and HLMP3850A (12.19mm) significant?

A: Yes. The 3.3mm height difference may impact PCB layout and clearance requirements. HLMP3850A is not recommended for applications with strict height constraints. HLMP-C323 (8.91mm) and 4308H7 (9.19mm) are better choices when height is a design consideration.

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