MR5361 Yellow Diffused LED T-1 Equivalent & Substitute Parts

Part Overview

The MR5361 is a yellow diffused LED in T-1 (3mm) through-hole package manufactured by onsemi. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The MR5361 operates at 12V forward voltage with a 4mcd brightness rating and 60° viewing angle, designed for yellow LED indication applications in discrete radial configurations.

Key Parameters

Parameter	MR5361 Value
Manufacturer	onsemi
Color	Yellow
Lens Transparency	Diffused
Lens Size	3mm, T-1
Lens Style	Round with Domed Top
Voltage - Forward (Vf) (Typ)	12V
Current - Test	13mA
Millicandela Rating	4mcd
Viewing Angle	60°
Mounting Type	Through Hole
Package / Case	Radial
Wavelength - Peak	583nm
Height (Max)	6.30mm
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MR5361 is determined by the following critical parameters:

Mechanical Compatibility: Lens size (3mm T-1), lens style (round with domed top), mounting type (through hole radial), and maximum height must match or be compatible with the original footprint.

Optical Compatibility: Color (yellow), lens transparency (diffused), and wavelength range (580–595nm peak) ensure visual consistency and application suitability.

Electrical Compatibility: Forward voltage (Vf), test current, and millicandela rating determine circuit integration feasibility. Substitutes may operate at different voltage and current levels if the application circuit can accommodate the change.

Regulatory Compliance: RoHS3 compliance and REACH status are preferred for modern production environments, though the original MR5361 is RoHS non-compliant.

The substitute parts listed below meet the mechanical and optical requirements while offering active product status and improved compliance profiles.

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	Current - Test	mcd Rating	Viewing Angle	Wavelength - Peak	Height (Max)	Product Status	RoHS Status
MR5361	onsemi	12V	13mA	4mcd	60°	583nm	6.30mm	Obsolete	RoHS non-compliant
HLMP-1621	Broadcom Limited	12V	13mA	2.2mcd	60°	583nm	6.35mm	Active	ROHS3 Compliant
HLMP-1620	Broadcom Limited	5V	10mA	2.2mcd	60°	583nm	6.35mm	Active	ROHS3 Compliant
151031YS05900	Würth Elektronik	2.1V	20mA	30mcd	60°	585nm	5.55mm	Active	ROHS3 Compliant
3YD-F	Bivar Inc.	2V	20mA	20mcd	35°	590nm	5.30mm	Active	ROHS3 Compliant
3YDL-F	Bivar Inc.	2V	2mA	2mcd	35°	590nm	5.30mm	Active	ROHS3 Compliant
1254-10UYD/S530-A3	Everlight Electronics Co Ltd	2V	20mA	200mcd	30°	591nm	5.20mm	Active	ROHS3 Compliant
264-7UYD/S530-A3	Everlight Electronics Co Ltd	2V	20mA	125mcd	60°	591nm	6.20mm	Active	ROHS3 Compliant
414-10UYD/S530-A3	Everlight Electronics Co Ltd	2V	20mA	40mcd	120°	591nm	7.00mm	Active	Not specified
HLMP-1620-C00A1	Broadcom Limited	5V	10mA	2.2mcd	60°	583nm	Not specified	Active	ROHS3 Compliant
HLMP-1620-C00A2	Broadcom Limited	5V	10mA	2.2mcd	60°	583nm	Not specified	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute - Voltage-Matched: HLMP-1621 (Broadcom Limited) is the closest electrical match, operating at 12V with 13mA test current identical to the MR5361. This part maintains the same forward voltage and current characteristics, minimizing circuit redesign requirements. HLMP-1621 is active and ROHS3 compliant, providing long-term availability and regulatory compliance.

Alternative Substitutes - Low Voltage Operation: Parts operating at 2V–5V forward voltage (HLMP-1620, 151031YS05900, 3YD-F, 3YDL-F, Everlight series) require circuit modification to accommodate lower voltage requirements. These substitutes are suitable only when the application circuit can be redesigned to support reduced forward voltage and adjusted current levels.

Brightness Considerations: The MR5361 operates at 4mcd. Substitute parts range from 2mcd (HLMP-1621, HLMP-1620, 3YDL-F) to 200mcd (1254-10UYD/S530-A3). Selection depends on application brightness requirements and whether the circuit can tolerate higher current draw at elevated brightness levels.

Viewing Angle Variations: The MR5361 specifies 60° viewing angle. Most substitutes maintain this specification. Parts with narrower viewing angles (30°–35°) concentrate light intensity; parts with wider angles (120°) distribute light more broadly. Application requirements determine suitability.

Compliance Status: All substitute parts listed are ROHS3 compliant or have unspecified compliance status, representing improvement over the MR5361's RoHS non-compliant designation. This supports modern manufacturing and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can HLMP-1621 directly replace MR5361 without circuit modification?

A: Yes. HLMP-1621 matches the MR5361 in forward voltage (12V), test current (13mA), viewing angle (60°), and mechanical package (T-1 radial through-hole). Direct substitution is possible without circuit redesign.

Q: Why do some substitutes operate at 2V or 5V instead of 12V?

A: Lower voltage parts (2V–5V) are included as substitutes because they share the same mechanical package, optical properties (yellow diffused), and wavelength range. However, they require circuit modification to accommodate reduced forward voltage and potentially different current requirements.

Q: What is the difference between HLMP-1620 and HLMP-1621?

A: HLMP-1620 operates at 5V with 10mA test current, while HLMP-1621 operates at 12V with 13mA test current. Both are identical in mechanical package, lens style, and viewing angle. Selection depends on the application's voltage supply.

Q: Are the Everlight and Würth parts suitable for 12V applications?

A: No. Everlight (1254-10UYD/S530-A3, 264-7UYD/S530-A3, 414-10UYD/S530-A3) and Würth (151031YS05900) parts operate at 2V–2.1V forward voltage. Direct connection to 12V circuits will cause component failure. These parts require circuit redesign with appropriate current-limiting resistors for lower voltage supplies.

Q: What is the difference between 3YD-F and 3YDL-F?

A: Both are Bivar T-1 yellow diffused LEDs. 3YD-F operates at 20mA test current with 20mcd brightness. 3YDL-F operates at 2mA test current with 2mcd brightness. Selection depends on application current budget and required brightness level.

Q: Do the right-angle variants (HLMP-1620-C00A1, HLMP-1620-C00A2) fit the same footprint as MR5361?

A: No. These variants feature right-angle mounting, which differs from the radial through-hole configuration of MR5361. They are not suitable for direct PCB footprint replacement.

Q: What wavelength range is acceptable for yellow LED substitution?

A: The MR5361 specifies 583nm peak wavelength. Substitute parts range from 583nm to 591nm peak wavelength, all within the yellow spectrum. This range ensures visual consistency and application compatibility.

Q: Is RoHS compliance required for MR5361 substitution?

A: RoHS compliance is not required for functional substitution but is recommended for new designs and modern manufacturing environments. All listed substitutes are ROHS3 compliant or unspecified, representing regulatory improvement over the MR5361's non-compliant status.

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