OVM4BTX LED Blue Clear TO-46 T/H Equivalent & Substitute Parts

Part Overview

The OVM4BTX is a blue LED indication component manufactured by TT Electronics/Optek Technology, featuring a 465nm dominant wavelength and 2260mcd luminous intensity in a TO-46-2 through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part delivers 2.6V forward voltage at 20mA test current with an 18° viewing angle in a clear, domed-top lens configuration.

Substiute Parts

OVM4BTX

TT Electronics/Optek TechnologyIn Stock: 990OVM4BTX Datasheet

Current PartRFQ

151033BS03000

Würth ElektronikIn Stock: 1296151033BS03000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OVM4BTX is determined by the following critical parameters:

• Color and Wavelength: Blue spectrum LEDs with dominant wavelengths between 463nm and 470nm maintain functional equivalence for indication applications
• Voltage and Current Characteristics: Forward voltage tolerance of ±0.2V and test current of 20mA ensure compatible circuit integration
• Luminous Intensity: Millicandela ratings within the range of 2260mcd to 3800mcd provide adequate visibility for indication purposes
• Viewing Angle: Angles between 18° and 30° accommodate standard indication circuit layouts
• Mounting Configuration: Through-hole mounting type with comparable physical dimensions (height and lens diameter) enables direct board-level substitution
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status maintain environmental and regulatory alignment

The substitute part 151033BS03000 (Würth Elektronik WL-TMRW series) meets these criteria with compatible electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 151033BS03000 substitute part is suitable for OVM4BTX replacement based on the following factors:

Product Status Alignment: The substitute part maintains active product status with Würth Elektronik, ensuring long-term availability and supply chain continuity compared to the obsolete OVM4BTX.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent component selection.

Electrical Compatibility: The substitute part operates at 2.8V forward voltage versus the original 2.6V, representing a 0.2V increase within acceptable tolerance for most indication circuit designs. Both parts operate at identical 20mA test current.

Optical Performance: The substitute part delivers 3800mcd versus the original 2260mcd, providing enhanced luminous intensity for improved visibility. The 30° viewing angle compared to the original 18° offers broader light distribution suitable for indication applications.

Physical Considerations: The substitute part features a smaller 3.00mm lens diameter in a radial package configuration versus the original 4.63mm TO-46-2 package. Height difference of 5.55mm versus 4.79mm requires PCB layout verification for clearance compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 151033BS03000 directly replace the OVM4BTX without circuit modifications?

A: The substitute part is electrically compatible at the 20mA test current level. However, the 0.2V higher forward voltage (2.8V vs 2.6V) may require verification of series resistor values in the driving circuit. The different package form factor (3mm radial vs TO-46-2) necessitates PCB layout changes.

Q: What are the key differences in optical performance?

A: The substitute part provides 1540mcd additional luminous intensity (3800mcd vs 2260mcd) and a 12° wider viewing angle (30° vs 18°). These differences result in brighter indication with broader light distribution, suitable for most indication applications.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the OVM4BTX and 151033BS03000 maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic component use.

Q: What is the primary reason for substitution?

A: The OVM4BTX is classified as obsolete, making the active 151033BS03000 necessary for ongoing production and maintenance applications requiring blue LED indication components.

Q: How do the package differences affect board design?

A: The OVM4BTX uses a TO-46-2 through-hole package with 4.63mm lens diameter and 4.79mm maximum height. The 151033BS03000 uses a 3mm radial package with 5.55mm maximum height. PCB footprint, mounting hole spacing, and component clearance must be re-evaluated for the substitute part.

Q: Are the wavelength specifications compatible?

A: Yes. The substitute part's 470nm dominant wavelength and 465nm peak wavelength fall within the blue spectrum range of the original 465nm dominant and 463nm peak wavelengths, maintaining functional equivalence for indication purposes.