CRL2010-FW-R082ELF Equivalent & Substitute Parts

Part Overview

The CRL2010-FW-R082ELF is a 0.082 ohm (82 mOhms) thick film chip resistor manufactured by Bourns Inc. in the 2010 (5025 metric) package format. This component is rated for 0.75W power dissipation with ±1% tolerance and operates across a temperature range of -55°C to 125°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

CRL2010-FW-R082ELF

Bourns Inc.In Stock: 893CRL2010-FW-R082ELF Datasheet

Current PartRFQ

CRM2010-FX-R082ELF

Bourns Inc.In Stock: 1018CRM2010-FX-R082ELF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete CRL2010-FW-R082ELF is based on the following critical parameters that must remain constant or be compatible:

Mandatory Matching Parameters:

• Resistance value: 82 mOhms
• Tolerance: ±1%
• Package format: 2010 (5025 Metric)
• Composition: Thick Film
• Physical dimensions: 0.197" L x 0.098" W with 0.028" maximum seated height
• Number of terminations: 2
• Compliance certifications: ROHS3, REACH Unaffected

Allowable Variation Parameters:

• Power rating: Substitute parts may exceed the 0.75W specification, provided the higher rating does not compromise circuit design intent
• Temperature coefficient: Substitute parts may have improved specifications (lower ppm/°C values)
• Operating temperature range: Substitute parts may have extended upper temperature limits
• Product status: Active status preferred for long-term availability

The CRM2010-FX-R082ELF meets all mandatory matching criteria and provides enhanced performance characteristics in power rating and temperature coefficient.

Parameter Comparison

Engineering Selection Recommendations

The CRM2010-FX-R082ELF is a direct functional substitute for the obsolete CRL2010-FW-R082ELF. Both components are manufactured by Bourns Inc. and maintain identical electrical specifications for resistance value and tolerance. The substitute part offers the following advantages:

Product Status: The CRM2010-FX-R082ELF carries active product status, ensuring long-term availability and supply chain continuity compared to the obsolete CRL2010-FW-R082ELF.

Enhanced Performance: The substitute provides a higher power rating (1W versus 0.75W) and improved temperature coefficient (±100ppm/°C versus ±200ppm/°C), delivering superior thermal stability and power handling capability within the same physical footprint.

Extended Operating Range: The substitute supports operation to 155°C, compared to 125°C for the original part, providing additional thermal margin in high-temperature applications.

Regulatory Compliance: Both parts maintain identical ROHS3 compliance and REACH unaffected status, ensuring regulatory requirements are satisfied without modification.

Packaging Compatibility: The CRM2010-FX-R082ELF is supplied in Tape & Reel (TR) format, standard for automated assembly processes. Physical dimensions and termination count remain identical, enabling direct PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CRM2010-FX-R082ELF be used as a direct replacement for the CRL2010-FW-R082ELF in existing designs?

A: Yes. Both components share identical resistance values (82 mOhms), tolerance (±1%), package format (2010/5025 metric), physical dimensions, and termination configuration. The substitute part is electrically and mechanically compatible for direct substitution.

Q: What is the significance of the higher power rating on the substitute part?

A: The CRM2010-FX-R082ELF is rated for 1W compared to the original 0.75W. This higher rating provides additional thermal margin and allows the component to dissipate greater power without exceeding maximum junction temperature. In applications operating at or near the original 0.75W specification, the substitute offers improved reliability and thermal performance.

Q: How does the improved temperature coefficient affect circuit performance?

A: The substitute part exhibits a temperature coefficient of ±100ppm/°C compared to ±200ppm/°C for the original. This means the resistance value changes more gradually with temperature variations, resulting in improved circuit stability and reduced temperature-induced drift in precision applications.

Q: Are there any PCB layout modifications required when switching to the CRM2010-FX-R082ELF?

A: No. The substitute part maintains identical physical dimensions (0.197" L x 0.098" W, 5.00mm x 2.50mm) and seated height (0.028" maximum). PCB footprints, land patterns, and assembly processes require no modification.

Q: What is the difference between the CRL and CRM series designations?

A: The CRL2010 series represents the obsolete product line. The CRM2010 series is the active Bourns product line for thick film chip resistors in the 2010 package. The CRM2010-FX variant includes current sense features and represents the current manufacturing standard.

Q: Are moisture sensitivity levels identical between the two parts?

A: Yes. Both the CRL2010-FW-R082ELF and CRM2010-FX-R082ELF carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

Q: Can the substitute part be used in applications requiring operation above 125°C?

A: The CRM2010-FX-R082ELF supports continuous operation to 155°C, extending the upper temperature limit by 30°C compared to the original part. This enables use in higher-temperature environments while maintaining specified electrical characteristics.