MPR5SRD LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The MPR5SRD is an industrial metal panel-mounted LED indicator manufactured by Bivar Inc., designed for applications requiring a red diffused lens with 40° viewing angle. This component operates at 1.7V typical forward voltage with a maximum current rating of 20mA and delivers 40 millicandela brightness at a peak wavelength of 645nm.

The MPR5SRD is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems currently utilizing this component.

Substiute Parts

MPR5SRD

Bivar Inc.In Stock: 790MPR5SRD Datasheet

Current PartRFQ

MPR5RD

Bivar Inc.In Stock: 1125MPR5RD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MPR5SRD is determined by the following critical parameters:

Mechanical Compatibility:

• Panel cutout shape must be round
• Panel cutout dimensions must be 0.32" (8.13mm)
• Lens size must be 5mm, T-1 3/4
• Lens style must be round with domed top

Electrical Compatibility:

• Lamp color must be red
• Lens transparency must be diffused
• Maximum current rating must be 20mA
• Forward voltage must support operation within the design circuit

Environmental & Regulatory:

• Moisture Sensitivity Level (MSL) must be 1 (Unlimited)
• ECCN classification must be EAR99
• HTSUS code must be 8541.41.0000

The MPR5RD meets all mechanical and electrical compatibility criteria for substitution with the obsolete MPR5SRD, with the exception of specific electrical parameter variations noted in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The MPR5RD is an active production substitute for the obsolete MPR5SRD. Both components share identical mechanical interfaces, panel cutout dimensions, lens form factor, and current ratings. The MPR5RD is manufactured by the same supplier (Bivar Inc.) and maintains equivalent MSL, ECCN, and HTSUS classifications.

Critical Design Considerations:

1. Forward Voltage Differential: The MPR5RD operates at 2.1V typical forward voltage compared to 1.7V for the MPR5SRD. Circuit designs must be evaluated to confirm that the additional 0.4V voltage drop can be accommodated within the existing power supply and current-limiting resistor configuration.

2. Brightness Output: The MPR5RD delivers 2mcd compared to 40mcd for the MPR5SRD. This represents a 95% reduction in luminous intensity. Applications requiring specific brightness levels for visibility or status indication must assess whether this reduction is acceptable for the intended use case.

3. Wavelength Shift: The MPR5RD peak wavelength is 700nm versus 645nm for the MPR5SRD. This 55nm shift moves the emission spectrum toward the infrared region. Visual color perception may appear slightly different, and applications using optical filters or color-sensitive detection systems must evaluate compatibility.

4. Viewing Angle: The MPR5RD provides a 35° viewing angle compared to 40° for the MPR5SRD. This 5° reduction in angular distribution may affect visibility in applications where wide-angle indication is required.

Regulatory & Compliance Status:

The MPR5RD carries active product status with confirmed ROHS3 compliance and REACH unaffected designation. The obsolete MPR5SRD does not specify these certifications. For applications subject to RoHS or REACH regulatory requirements, the MPR5RD provides documented compliance assurance.

Inventory & Availability:

Current inventory shows 1,072 units of MPR5RD available in tray packaging, compared to 738 units of the obsolete MPR5SRD. The active production status of MPR5RD ensures long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the MPR5RD be used as a direct drop-in replacement for the MPR5SRD?

A: The MPR5RD provides mechanical compatibility with identical panel cutout dimensions (0.32" / 8.13mm), lens size (5mm T-1 3/4), and form factor. However, electrical parameter differences require circuit evaluation. The forward voltage is 0.4V higher, brightness output is 95% lower, and wavelength peak is shifted 55nm toward infrared. Direct substitution is possible only if the circuit design accommodates these electrical variations and the application tolerates the reduced brightness and altered color characteristics.

Q: What is the impact of the 40mcd to 2mcd brightness reduction?

A: The MPR5RD delivers significantly lower luminous intensity. Applications relying on the MPR5SRD's 40mcd output for visual indication, status signaling, or optical detection will experience a substantial reduction in brightness. The suitability of the 2mcd output depends on the specific application requirements, ambient lighting conditions, and viewing distance. Applications requiring high brightness should not use the MPR5RD as a substitute.

Q: How does the wavelength shift from 645nm to 700nm affect performance?

A: The 55nm shift moves the emission spectrum from standard red (645nm) toward deep red/infrared (700nm). This may result in a perceptibly different color appearance to the human eye. Applications using optical filters, color-matching requirements, or infrared-sensitive detection systems must evaluate whether the 700nm wavelength is compatible with their design. Standard red indicator applications may tolerate this shift, but color-critical applications should not substitute without verification.

Q: Does the 5° reduction in viewing angle (40° to 35°) matter?

A: The viewing angle reduction from 40° to 35° narrows the angular distribution of light. Applications requiring wide-angle visibility or indication across a broad field of view may be affected. The impact depends on the specific mounting location, observer positions, and visibility requirements. Applications with constrained viewing geometry or requiring maximum angular coverage should evaluate whether the 35° angle is sufficient.

Q: What is the significance of the MPR5RD's ROHS3 compliance and REACH unaffected status?

A: The MPR5RD carries documented ROHS3 compliance and REACH unaffected designation, confirming adherence to European environmental and chemical safety regulations. The obsolete MPR5SRD does not specify these certifications. For applications subject to RoHS or REACH regulatory frameworks, the MPR5RD provides verified compliance assurance. This is particularly important for products destined for European markets or subject to customer compliance requirements.

Q: What packaging differences exist between the two parts?

A: The MPR5SRD packaging is specified as "-" (not detailed in available documentation). The MPR5RD is supplied in tray packaging. Tray packaging is standard for automated assembly processes and provides protection during storage and handling. If the original design used alternative packaging, the tray format should be confirmed as compatible with existing procurement and assembly workflows.

Q: Is the MPR5RD suitable for new designs, or only for legacy system replacement?

A: The MPR5RD is an active production component with current inventory availability and confirmed regulatory compliance (ROHS3, REACH). It is suitable for both legacy system replacement and new design applications. However, design decisions should be based on the specific electrical and optical requirements of the application, not solely on the availability of the obsolete MPR5SRD.

Q: How should circuit design be modified to accommodate the 2.1V forward voltage of the MPR5RD?

A: The 0.4V increase in forward voltage will result in a proportional reduction in voltage drop across the current-limiting resistor. For a given resistor value, this will increase the LED current slightly. Circuit designers must recalculate the current-limiting resistor value to maintain the desired 20mA maximum current rating. Alternatively, if the circuit is designed with sufficient voltage headroom, the higher forward voltage may be accommodated without resistor modification. Specific circuit analysis is required based on the power supply voltage and existing resistor configuration.