MV37509MP97 LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The MV37509MP97 is a dual-level red LED circuit board indicator manufactured by onsemi, configured as a 2 High red LED assembly with through-hole right-angle mounting. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates at 2.2V with a 20mA current rating and delivers 150mcd brightness in a 5mm T-1 3/4 form factor with tinted domed lens.

Key Parameters

Parameter	MV37509MP97 Specification
Manufacturer	onsemi
Product Status	Obsolete
Color	Red (x 2)
Configuration	2 High
Wavelength - Peak	635nm
Voltage Rating	2.2V
Current	20mA
Millicandela Rating	150mcd
Lens Type	Tinted
Lens Style	Round with Domed Top
Lens Size	5mm, T-1 3/4
Mounting Type	Through Hole, Right Angle
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution for the MV37509MP97 is determined by the following critical parameters:

Form Factor & Mounting: 5mm T-1 3/4 through-hole configuration
Color & Wavelength: Red spectrum (623nm–645nm peak wavelength range)
Electrical Compatibility: Forward voltage (Vf) and current ratings must support circuit integration
Optical Performance: Millicandela rating and viewing angle for visibility requirements
Regulatory Compliance: RoHS3 and REACH status for manufacturing standards

The substitute parts listed below maintain compatibility within these parameters while accommodating variations in lens transparency (clear vs. tinted), brightness levels, and voltage specifications. Single-element red LEDs are grouped as functional equivalents to the dual-level configuration, as they provide the same red indication function in standard circuit board applications.

Parameter Comparison

Part Number	Manufacturer	Color	Wavelength - Peak (nm)	Voltage - Forward (V)	Current - Test (mA)	Millicandela Rating (mcd)	Lens Style	Lens Size	Mounting Type	Product Status	RoHS Status
MV37509MP97	onsemi	Red (x 2)	635	2.2	20	150	Round with Domed Top	5mm, T-1 3/4	Through Hole, Right Angle	Obsolete	ROHS3 Compliant
4302H1-12V	Visual Communications Company - VCC	Red	635	12	13	8	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
4302H1-5V	Visual Communications Company - VCC	Red	635	5	10	8	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
HLMP-D105	Broadcom Limited	Red	645	1.8	20	240	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
HLMP-D105-M0002	Broadcom Limited	Red	645	1.8	20	240	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
HLMP-D155-F0002	Broadcom Limited	Red	660	1.7	1	10	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
LTL2R3KEK	Lite-On Inc.	Red	632	2.05	20	700	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
LTL2R3KRK	Lite-On Inc.	Red	639	2	20	680	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
OVLLR8C7	TT Electronics/Optek Technology	Red	–	2	20	900	Round with Flat Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
SSL-LX5063IC	Lumex Opto/Components Inc.	Red	635	2	20	160	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant
SSL-LX5093BSRC/E	Lumex Opto/Components Inc.	Red	660	3	20	600	Round with Domed Top	5mm, T-1 3/4	Through Hole	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Closest Electrical Match)

HLMP-D105 and HLMP-D105-M0002 (Broadcom Limited) provide the closest functional equivalence, matching the 20mA test current and delivering higher brightness (240mcd vs. 150mcd). The lower forward voltage (1.8V vs. 2.2V) requires circuit verification but offers improved efficiency. Both parts maintain active product status and ROHS3 compliance.

Voltage-Compatible Alternatives

LTL2R3KEK and LTL2R3KRK (Lite-On Inc.) operate within 0.05V of the original specification (2.05V and 2V respectively) at 20mA current, providing superior brightness (680–700mcd). These parts are actively manufactured and ROHS3 compliant. LTL2R3KRK carries REACH Affected status, requiring compliance verification in regulated markets.

Low-Brightness Applications

HLMP-D155-F0002 (Broadcom Limited) operates at significantly reduced current (1mA vs. 20mA) and brightness (10mcd vs. 150mcd), suitable only for applications where lower visibility is acceptable. Forward voltage of 1.7V provides circuit flexibility.

High-Brightness Alternative

OVLLR8C7 (TT Electronics/Optek Technology) delivers maximum brightness (900mcd) at 2V forward voltage with 20mA current. The flat-top lens style differs from the original domed configuration, affecting viewing angle characteristics (100° vs. unspecified).

Voltage-Variant Substitutes

4302H1-5V and 4302H1-12V (Visual Communications Company - VCC) operate at different voltage levels (5V and 12V) with reduced brightness (8mcd). These are suitable only for applications with different circuit voltage requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace MV37509MP97 with any of these substitute parts?

A: Direct replacement depends on circuit voltage and brightness requirements. HLMP-D105, LTL2R3KEK, and LTL2R3KRK are electrically closest to the original specification. Parts with significantly different forward voltages (4302H1 series, SSL-LX5093BSRC/E) require circuit redesign.

Q: What is the difference between the tinted lens on the original part and the clear lens on most substitutes?

A: Tinted lenses reduce transmitted light intensity and may alter color perception. Clear-lens substitutes deliver higher brightness at the same current rating. Circuit design must account for this optical difference.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant. LTL2R3KRK carries REACH Affected status; verify compliance requirements for your target market.

Q: Why do some parts have different current ratings (1mA vs. 20mA)?

A: Current rating reflects the test condition at which brightness is specified. HLMP-D155-F0002 operates at 1mA for low-power applications. Standard circuit board indicator applications typically use 20mA-rated parts.

Q: What is the significance of wavelength peak values ranging from 632nm to 660nm?

A: All values fall within the red spectrum (620–700nm). Wavelength differences may produce slight color variations (deeper red at longer wavelengths). For color-critical applications, select parts with wavelength closest to the original 635nm specification.

Q: Can I use SSL-LX5093BSRC/E as a direct substitute?

A: No. This part includes flashing functionality and operates at 3V, requiring circuit modification. Use only if blinking indication is desired and circuit supports 3V operation.

Q: What mounting considerations apply to these substitutes?

A: All parts use through-hole mounting in 5mm T-1 3/4 form factor. The original MV37509MP97 specifies right-angle mounting; most substitutes use standard radial configuration. Verify PCB layout compatibility before selection.

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