MV5774C Red LED Diffused T-1 Through-Hole Equivalent & Substitute Parts

Part Overview

The MV5774C is a red diffused LED indicator manufactured by onsemi, designed for through-hole mounting applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance requirements. The MV5774C operates at 2V forward voltage with a 20mA test current and delivers 9mcd brightness in a standard 3mm T-1 package format.

Key Parameters

Parameter	MV5774C Specification
Manufacturer	onsemi
Product Status	Obsolete
Color	Red
Lens Transparency	Diffused
Lens Size	3mm, T-1
Voltage - Forward (Vf) Typical	2V
Current - Test	20mA
Millicandela Rating	9mcd
Viewing Angle	90°
Mounting Type	Through Hole
Wavelength - Peak	635nm
Package / Case	Radial
Height (Max)	5.84mm
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MV5774C is determined by the following critical parameters:

Color: Red
Lens Transparency: Diffused
Lens Size: 3mm, T-1
Mounting Type: Through Hole
Package / Case: Radial
Voltage - Forward (Vf) Typical: 2V (±0.2V tolerance acceptable)
Current - Test: 20mA (±10mA tolerance acceptable)
Wavelength - Peak: 635nm (±10nm tolerance acceptable)

All substitute parts listed maintain these core electrical and mechanical parameters within acceptable engineering tolerances. Parts are grouped by manufacturer and product status to facilitate selection based on availability and compliance requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Vf (Typ)	Current - Test	mcd	Viewing Angle	Wavelength - Peak	Height (Max)	RoHS Status
MV5774C	onsemi	Obsolete	2V	20mA	9	90°	635nm	5.84mm	-
3HD-F	Bivar Inc.	Active	2V	20mA	30	35°	625nm	5.30mm	ROHS3 Compliant
3SRD-S	Bivar Inc.	Active	1.7V	20mA	40	40°	645nm	4.50mm	ROHS3 Compliant
HLMP-1301	Broadcom Limited	Active	1.9V	10mA	3.4	60°	635nm	6.35mm	ROHS3 Compliant
LTL-1CHE	Lite-On Inc.	Active	2V	20mA	12.6	60°	635nm	5.20mm	ROHS3 Compliant
LTL-4211	Lite-On Inc.	Active	2.1V	10mA	2.5	40°	697nm	6.55mm	ROHS3 Compliant
LTL-4221	Lite-On Inc.	Active	2V	20mA	8.7	40°	635nm	6.55mm	ROHS3 Compliant
LTL-4221-002	Lite-On Inc.	Active	2V	20mA	8.7	40°	635nm	6.80mm	ROHS3 Compliant
SLR-332VR3F	Rohm Semiconductor	Not For New Designs	2V	10mA	10	85°	630nm	4.60mm	ROHS3 Compliant
SLR-332VRT32	Rohm Semiconductor	Active	2V	10mA	10	85°	630nm	4.60mm	ROHS3 Compliant
SSL-LX30FT14ID	Lumex Opto/Components Inc.	Active	2V	20mA	10	100°	635nm	6.00mm	ROHS3 Compliant

Engineering Selection Recommendations

For applications requiring direct replacement of the MV5774C, prioritize parts with active product status and ROHS3 compliance certification. The following selections are based on electrical parameter alignment and manufacturing availability:

Primary Substitutes (Closest Electrical Match):

LTL-4221 and LTL-4221-002: Identical forward voltage (2V) and test current (20mA) with matching wavelength (635nm). Both are active products with ROHS3 compliance. LTL-4221-002 offers tape and reel packaging for automated assembly.
SSL-LX30FT14ID: Matches forward voltage (2V), test current (20mA), and wavelength (635nm) with active product status and ROHS3 compliance.

Secondary Substitutes (Acceptable Electrical Variation):

LTL-1CHE: Forward voltage and test current match the MV5774C specification. Wavelength and brightness are within acceptable tolerance ranges.
3HD-F: Forward voltage and test current match specification. Higher brightness (30mcd) and narrower viewing angle (35°) may require circuit evaluation.

Alternative Substitutes (Significant Parameter Variation):

HLMP-1301: Lower test current (10mA) and reduced brightness (3.4mcd) require circuit redesign consideration.
3SRD-S: Lower forward voltage (1.7V) and higher brightness (40mcd) require circuit evaluation.
LTL-4211: Higher forward voltage (2.1V) and lower test current (10mA) require circuit redesign.
SLR-332VRT32: Lower test current (10mA) requires circuit evaluation. Active product status with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different forward voltage? A: Forward voltage differences affect circuit current and brightness. Parts with ±0.2V variation from the MV5774C specification (2V) may be used if the circuit includes current-limiting resistors. Parts with greater variation require circuit redesign and testing.

Q: What is the significance of the viewing angle difference? A: Viewing angle determines the light distribution pattern. The MV5774C operates at 90°, providing wide-angle illumination. Substitutes with narrower angles (35°-40°) concentrate light in a smaller cone, affecting visibility in the application. Wider angles (85°-100°) provide broader distribution.

Q: Are tape and reel packaged parts (LTL-4221-002) compatible with through-hole assembly? A: Yes. Tape and reel packaging is a distribution format only. The component itself remains a through-hole radial LED identical to bulk-packaged equivalents. Tape and reel format is suitable for automated pick-and-place assembly.

Q: What does "Not For New Designs" product status mean? A: This status indicates the manufacturer no longer recommends the part for new product development. SLR-332VR3F remains available but should be avoided in new designs. Use active-status alternatives instead.

Q: How do brightness differences (mcd) affect substitution? A: Millicandela rating indicates light intensity at the test current. The MV5774C operates at 9mcd. Substitutes with higher brightness (30mcd, 40mcd) may appear brighter in the application. Lower brightness (2.5mcd, 3.4mcd) may require increased test current or circuit modification to maintain visibility.

Q: Is ROHS3 compliance required for my application? A: ROHS3 compliance is mandatory for products sold in the European Union and many other markets. All active substitute parts listed carry ROHS3 certification. The obsolete MV5774C does not list compliance status.

Q: Can I substitute parts with different wavelengths? A: The MV5774C operates at 635nm peak wavelength. Substitutes within ±10nm (625nm-645nm) maintain the same red color perception. Parts outside this range (697nm) appear as different red shades and may not be visually equivalent in the application.

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