MV8331 LED Yellow Clear T-1 3/4 Through Hole - Equivalent & Substitute Parts

Part Overview

The MV8331 is a yellow LED indication component manufactured by onsemi, featuring a 5mm T-1 3/4 through-hole radial package with a clear domed lens. This discrete 2.1V LED delivers 630 millicandela at 20mA test current with a 30-degree viewing angle and 590nm peak wavelength. The product is currently obsolete, making equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity. Substitute parts must maintain compatibility across electrical characteristics, mechanical dimensions, and mounting specifications to ensure direct board-level replacement without circuit redesign.

Key Parameters

Parameter	MV8331 Specification
Color	Yellow
Lens Transparency	Clear
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) Typical	2.1V
Current - Test	20mA
Millicandela Rating	630mcd
Viewing Angle	30°
Wavelength - Peak	590nm
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	8.89mm
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the MV8331 is based on the following critical parameters that must align for direct replacement:

Primary Compatibility Criteria:

Color: Yellow (589-591nm wavelength range acceptable)
Lens Transparency: Clear
Lens Size: 5mm, T-1 3/4 form factor
Mounting Type: Through Hole Radial
Voltage - Forward (Vf): 2.0V to 2.2V range
Current - Test: 20mA
Viewing Angle: 20° to 30° (wider angles maintain compatibility)
Height (Max): 8.6mm to 8.91mm (PCB clearance tolerance)

Acceptable Variations:

Millicandela rating may vary (130mcd to 14,000mcd) based on application brightness requirements
Product status transition from Obsolete to Active is acceptable for substitution
RoHS3 compliance and REACH Unaffected status are preferred for modern designs

Substitute parts are grouped into two categories: Direct Yellow LED Substitutes (matching color and wavelength) and Alternative Consideration (orange LEDs with different electrical characteristics, included for reference only).

Parameter Comparison

Part Number	Manufacturer	Color	Vf (Typ)	mcd Rating	Viewing Angle	Wavelength Peak	Height (Max)	Product Status	RoHS Status
MV8331	onsemi	Yellow	2.1V	630	30°	590nm	8.89mm	Obsolete	-
5219466F	Dialight	Yellow	2.2V	140	24°	583nm	8.81mm	Active	ROHS3 Compliant
LTL2R3KSK	Lite-On Inc.	Yellow	2.05V	1150	30°	591nm	8.70mm	Active	ROHS3 Compliant
OVLFY3C7	TT Electronics/Optek Technology	Yellow	2V	7400	30°	589nm	8.70mm	Active	ROHS3 Compliant
OVLGY0C9B9	TT Electronics/Optek Technology	Yellow	2V	14000	8°	589nm	8.90mm	Active	ROHS3 Compliant
SLI-570Y2T3F	Rohm Semiconductor	Yellow	2.1V	5200	20°	591nm	8.85mm	Active	ROHS3 Compliant
SLI-570YT3F	Rohm Semiconductor	Yellow	2.1V	5200	20°	591nm	8.85mm	Active	ROHS3 Compliant
WP7113SYCK/J3	Kingbright	Yellow	2V	6000	20°	590nm	8.60mm	Active	ROHS3 Compliant
HLMP-EJ30-NR0DD	Broadcom Limited	Orange	1.98V	1290	30°	609nm	8.91mm	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Yellow LED - Direct Replacement Category):

For applications requiring closest electrical and optical match to the MV8331, select from parts with forward voltage 2.0V to 2.2V, 20° to 30° viewing angle, and 589-591nm wavelength:

SLI-570YT3F (Rohm Semiconductor): Identical 2.1V forward voltage and 591nm wavelength with 5200mcd brightness. Active product status with ROHS3 compliance. Recommended for designs prioritizing electrical parameter matching.
LTL2R3KSK (Lite-On Inc.): 2.05V forward voltage within tolerance band, 591nm wavelength, 30° viewing angle matching MV8331 specifications. 1150mcd brightness suitable for standard indication applications. ROHS3 compliant with high inventory availability.
OVLFY3C7 (TT Electronics/Optek Technology): 2V forward voltage, 589nm wavelength, 30° viewing angle. Higher brightness at 7400mcd for applications requiring enhanced visibility. ROHS3 compliant.

Secondary Substitutes (Brightness-Optimized Yellow LED):

OVLGY0C9B9 (TT Electronics/Optek Technology): 14,000mcd brightness with 2V forward voltage and 589nm wavelength. Suitable only for applications where narrow 8° viewing angle and high brightness are acceptable trade-offs.
WP7113SYCK/J3 (Kingbright): 2V forward voltage, 590nm wavelength, 6000mcd brightness. 20° viewing angle represents narrower beam than MV8331; verify application tolerance before selection.

Alternative Consideration (Color Change - Orange LED):

HLMP-EJ30-NR0DD (Broadcom Limited): Orange 605nm wavelength with 1.98V forward voltage and 30° viewing angle. Electrical and mechanical compatibility confirmed, but color change from yellow to orange requires application review and user interface assessment.

All recommended substitutes maintain through-hole radial mounting, T-1 3/4 form factor, and MSL 1 rating. All active products carry ROHS3 compliance certification.

Frequently Asked Questions (FAQ)

Q: Can I use an orange LED substitute if the circuit was designed for yellow?

A: Orange LEDs (605nm wavelength) differ in color perception and may not meet application requirements if color indication is functionally critical. HLMP-EJ30-NR0DD maintains electrical compatibility (1.98V forward voltage, 30° viewing angle, through-hole radial package) and mechanical fit, but application review is required to confirm color change acceptability.

Q: What is the acceptable forward voltage range for substitution?

A: The MV8331 operates at 2.1V typical. Substitutes within 2.0V to 2.2V range are electrically compatible with standard current-limiting resistor circuits. Parts outside this range (such as 1.98V orange LEDs) require circuit verification but remain mechanically compatible.

Q: Does brightness variation affect substitutability?

A: Brightness (millicandela rating) varies significantly among substitutes (140mcd to 14,000mcd) without affecting electrical or mechanical compatibility. Selection depends on application visibility requirements. Higher brightness parts (OVLGY0C9B9 at 14,000mcd) may require viewing angle consideration due to narrower beam (8° versus MV8331's 30°).

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed carry ROHS3 Compliant certification. The original MV8331 (obsolete status) does not specify RoHS compliance. Modern designs benefit from ROHS3-compliant substitutes for regulatory alignment.

Q: What is the difference between T-1 3/4 and 5mm lens size specifications?

A: T-1 3/4 and 5mm refer to the same physical form factor (5mm diameter lens, through-hole radial package). Both designations are equivalent and interchangeable in this product category.

Q: Can I substitute based on wavelength alone?

A: No. Wavelength (589-591nm yellow range) is one of multiple critical parameters. Forward voltage (2.0V to 2.2V), viewing angle (20° to 30°), and mechanical dimensions (height 8.6mm to 8.91mm) must also align. Brightness and viewing angle variations may require application assessment.

Q: What inventory considerations apply to substitution?

A: All substitute parts listed show active inventory status with quantities ranging from 926 to 79,595 pieces. OVLGY0C9B9 and OVLFY3C7 offer highest availability (79,595 and 41,918 pieces respectively). Verify current stock with supplier before final part selection.

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