MV6151 LED Red Diffused T-1 3/4 Through Hole - Equivalent & Substitute Parts

Part Overview

The onsemi MV6151 is a red diffused LED indicator in T-1 3/4 (5mm) through-hole package, rated at 2.1V forward voltage with 12mcd brightness. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility with the original electrical specifications and mechanical form factor while offering active product status and current availability.

Key Parameters

Parameter	MV6151 Specification
Manufacturer	onsemi
Color	Red
Lens Transparency	Diffused
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) Typical	2.1V
Current - Test	20mA
Millicandela Rating	12mcd
Viewing Angle	70°
Mounting Type	Through Hole
Wavelength - Peak	635nm
Package / Case	Radial
Height (Max)	8.89mm
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution logic is based on the following critical parameters that determine functional equivalence:

Primary Compatibility Criteria:

Lens size: 5mm T-1 3/4 form factor
Mounting type: Through hole radial configuration
Color: Red
Lens transparency: Diffused
Forward voltage range: 1.9V to 2.1V (allows low-voltage alternatives)
Peak wavelength: 635nm region (red spectrum)

Secondary Considerations:

Millicandela rating: Brightness variations acceptable within indicator application tolerances
Viewing angle: 60° to 70° acceptable for standard indication purposes
Product status: Active status preferred for long-term availability
RoHS compliance: ROHS3 compliance indicates current manufacturing standards

Substitute parts are grouped into two categories: direct voltage equivalents (2.1V) and lower-voltage alternatives (1.9V) suitable for different circuit designs.

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	Current - Test	mcd	Viewing Angle	Peak Wavelength	Height (Max)	Product Status	RoHS Status
MV6151	onsemi	2.1V	20mA	12	70°	635nm	8.89mm	Obsolete	Not specified
151051RS11000	Würth Elektronik	2.1V	20mA	30	60°	650nm	8.95mm	Active	ROHS3 Compliant
4302H1-5V	Visual Communications Company - VCC	5V	10mA	8	60°	635nm	10.08mm	Active	ROHS3 Compliant
HLMP-3301	Broadcom Limited	1.9V	10mA	5.4	60°	635nm	9.19mm	Active	ROHS3 Compliant
HLMP-3301-D0000	Broadcom Limited	1.9V	10mA	2.1	60°	635nm	9.19mm	Active	ROHS3 Compliant
HLMP-3301-D0001	Broadcom Limited	1.9V	10mA	2.1	60°	635nm	9.19mm	Active	ROHS3 Compliant
HLMP-3301-D0002	Broadcom Limited	1.9V	10mA	2.1	60°	635nm	9.19mm	Active	ROHS3 Compliant
HLMP-3301-F0002	Broadcom Limited	1.9V	10mA	5.4	60°	635nm	9.19mm	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Voltage Equivalent (2.1V): The Würth Elektronik 151051RS11000 maintains identical forward voltage (2.1V) and test current (20mA) specifications as the MV6151. This part offers active product status with ROHS3 compliance, ensuring long-term supply chain stability. The increased brightness (30mcd vs. 12mcd) and slightly narrower viewing angle (60° vs. 70°) are acceptable for standard indicator applications. Height tolerance (8.95mm vs. 8.89mm) remains within typical PCB clearance margins.

Lower-Voltage Alternative (1.9V): The Broadcom HLMP-3301 series provides active alternatives with 1.9V forward voltage, suitable for designs operating at lower supply voltages or with series resistor configurations. Multiple packaging options (bulk, tape & reel, cut tape) accommodate different production workflows. ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1) ensure compatibility with standard manufacturing processes. Brightness variations (2.1mcd to 5.4mcd) depend on specific part variant selection.

Higher-Voltage Alternative (5V): The VCC 4302H1-5V addresses applications requiring direct 5V operation without series resistor networks. This part maintains T-1 3/4 form factor and diffused red lens characteristics. Active product status and ROHS3 compliance support current production requirements. Height (10.08mm) requires verification against PCB clearance specifications.

All substitute parts maintain REACH unaffected status and EAR99 export classification consistent with the original MV6151.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 151051RS11000 directly replace the MV6151 in existing designs? A: Yes. The 151051RS11000 matches the critical electrical parameters (2.1V forward voltage, 20mA test current) and mechanical form factor (5mm T-1 3/4 through-hole radial). The increased brightness (30mcd) and slightly narrower viewing angle (60°) are acceptable for indicator applications. PCB layout modifications are not required.

Q: What is the difference between HLMP-3301 variants (D0000, D0001, D0002, F0002)? A: These variants differ in packaging format and brightness rating. D-series parts are available in bulk, tape & reel, and cut tape configurations with 2.1mcd brightness. F0002 offers 5.4mcd brightness in cut tape format. All maintain identical electrical specifications (1.9V, 10mA, 60° viewing angle). Selection depends on production volume and assembly process requirements.

Q: Is the HLMP-3301 series suitable for designs currently using the MV6151? A: The HLMP-3301 series operates at 1.9V forward voltage compared to the MV6151's 2.1V. This requires circuit redesign to accommodate the lower voltage drop. The series is suitable for new designs or retrofits where supply voltage adjustment is feasible. Brightness is lower (2.1mcd to 5.4mcd vs. 12mcd), appropriate for standard indication purposes.

Q: What packaging options are available for high-volume production? A: The Würth Elektronik 151051RS11000 is available in bulk packaging. Broadcom HLMP-3301 variants offer tape & reel (HLMP-3301-D0001) and cut tape (HLMP-3301-D0002, HLMP-3301-F0002) options. VCC 4302H1-5V is supplied in bulk. Packaging selection should align with assembly equipment capabilities and inventory management requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts carry ROHS3 compliance certification. The original MV6151 RoHS status is not specified. All substitutes meet current environmental and regulatory standards for electronic component manufacturing.

Q: What is the viewing angle impact when substituting the MV6151? A: The MV6151 specifies 70° viewing angle. Most substitutes (Würth, Broadcom, VCC) provide 60° viewing angle. This 10° reduction is acceptable for standard indicator applications where the LED is viewed from a limited angular range. Applications requiring wide-angle visibility should retain the MV6151 or confirm 70° availability with alternative suppliers.

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