OVM4RTXV Equivalent & Substitute Parts

Part Overview

The OVM4RTXV is a red LED indication component manufactured by TT Electronics/Optek Technology, featuring a 624nm dominant wavelength and 3300mcd brightness rating in a TO-46-2 through-hole package. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The component operates at 1.8V forward voltage with a 20mA test current and provides an 18° viewing angle in a compact 4.63mm diameter domed lens configuration.

Substiute Parts

OVM4RTXV

TT Electronics/Optek TechnologyIn Stock: 909OVM4RTXV Datasheet

Current PartRFQ

5219820F

DialightIn Stock: 20005219820F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OVM4RTXV is determined by the following critical parameters:

• Red color specification (visual indication consistency)
• Through-hole mounting type (PCB assembly compatibility)
• Forward voltage range tolerance (circuit design compatibility)
• Millicandela rating within acceptable brightness range (visibility requirements)
• Wavelength compatibility in the red spectrum (color perception consistency)
• RoHS3 and REACH compliance (regulatory alignment)

The substitute part 5219820F from Dialight meets these core substitution criteria while maintaining functional equivalence for red LED indication applications. Both parts operate in the red spectrum with compatible electrical characteristics and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 5219820F substitute is suitable for applications requiring red LED indication where the OVM4RTXV is no longer available. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards.

Key considerations for selection:

• The substitute operates at 2V forward voltage compared to the original 1.8V, requiring circuit design verification for voltage compatibility
• The substitute provides higher brightness (3700mcd vs 3300mcd) and wider viewing angle (30° vs 18°), which may be advantageous for visibility but requires PCB layout confirmation
• Physical dimensions differ: the substitute is taller (8.91mm vs 4.79mm) and has a larger lens diameter (5.00mm vs 4.63mm), necessitating mechanical clearance validation
• Both parts maintain identical test current (20mA) and red color specification
• The substitute is currently in active production status, ensuring long-term availability

Frequently Asked Questions (FAQ)

Q: Can the 5219820F directly replace the OVM4RTXV without circuit modifications?

A: Direct replacement requires circuit design review. The forward voltage difference (2V vs 1.8V) may affect current-limiting resistor calculations and overall circuit performance. Mechanical clearance must also be confirmed due to dimensional differences.

Q: What are the key electrical differences between these parts?

A: The primary electrical difference is forward voltage: OVM4RTXV operates at 1.8V while 5219820F operates at 2V. Both use identical 20mA test current. The substitute provides higher brightness (3700mcd vs 3300mcd) and wider viewing angle (30° vs 18°).

Q: Are there mechanical compatibility concerns?

A: Yes. The OVM4RTXV uses a TO-46-2 package with 4.79mm maximum height and 4.63mm lens diameter. The 5219820F uses a radial 5mm package with 8.91mm maximum height and 5.00mm lens diameter. PCB layout and mechanical clearance must be validated.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the OVM4RTXV and 5219820F are ROHS3 compliant and REACH unaffected, meeting current regulatory standards for electronic component manufacturing.

Q: Why is the OVM4RTXV classified as obsolete?

A: The OVM4RTXV is an obsolete product from TT Electronics/Optek Technology. The 5219820F from Dialight is an active product with ongoing manufacturing support and availability.