CRL0805-FW-R050ELF Equivalent & Substitute Parts

Part Overview

The CRL0805-FW-R050ELF is a 50 mOhms ±1% 0.25W thick film chip resistor in 0805 (2012 Metric) package manufactured by Bourns Inc. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and operates across -55°C to 125°C.

Substiute Parts

CRL0805-FW-R050ELF

Bourns Inc.In Stock: 746CRL0805-FW-R050ELF Datasheet

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CRM0805-FW-R050ELF

Bourns Inc.In Stock: 1632CRM0805-FW-R050ELF Datasheet

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CSR0805FK50L0

Stackpole Electronics IncIn Stock: 2543CSR0805FK50L0 Datasheet

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CSR0805FT50L0

Stackpole Electronics IncIn Stock: 712CSR0805FT50L0 Datasheet

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ERJ-6BWFR050V

Panasonic Electronic ComponentsIn Stock: 218257ERJ-6BWFR050V Datasheet

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RCWE080550L0FNEA

Vishay DaleIn Stock: 15146RCWE080550L0FNEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for CRL0805-FW-R050ELF is determined by the following critical parameters:

• Resistance value: 50 mOhms
• Tolerance: ±1%
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±200ppm/°C
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Compliance: ROHS3

Substitute parts must maintain these core electrical and mechanical specifications. Variations in power rating (0.25W vs. 0.5W), operating temperature upper limit (125°C vs. 155°C), and additional features (current sense, automotive qualification) represent functional enhancements or extended capabilities that do not prevent substitution when the primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

For designs currently using CRL0805-FW-R050ELF, the following active-status alternatives are available:

CSR0805FK50L0 and CSR0805FT50L0 (Stackpole Electronics Inc) maintain identical electrical specifications and package dimensions while offering active product status. Both are ROHS3 compliant with MSL 1 rating and support extended operating temperature to 155°C.

RCWE080550L0FNEA (Vishay Dale) provides automotive AEC-Q200 qualification and moisture-resistant composition in addition to core specifications. This part is suitable for applications requiring automotive-grade reliability.

ERJ-6BWFR050V (Panasonic Electronic Components) offers increased power rating (0.5W vs. 0.25W) with automotive AEC-Q200 qualification. This part accommodates higher dissipation requirements while maintaining the 0805 package footprint.

CRM0805-FW-R050ELF (Bourns Inc.) is a current-sense variant from the same manufacturer with extended operating temperature range, though it retains obsolete status.

Frequently Asked Questions (FAQ)

Q: Can CSR0805FK50L0 or CSR0805FT50L0 be used as direct replacements for CRL0805-FW-R050ELF?

A: Yes. Both Stackpole parts maintain the same resistance (50 mOhms), tolerance (±1%), power rating (0.25W), package (0805), composition (thick film), temperature coefficient (±200ppm/°C), and compliance ratings (ROHS3, MSL 1). The extended operating temperature range (-55°C to 155°C vs. -125°C) represents an enhancement that does not affect compatibility.

Q: What is the difference between CSR0805FK50L0 and CSR0805FT50L0?

A: Both parts are electrically and mechanically identical. The difference lies in packaging format: CSR0805FK50L0 uses Tape & Reel (TR) packaging, while CSR0805FT50L0 also uses Tape & Reel (TR) packaging. Consult supplier documentation for specific reel configurations and quantities.

Q: Should I use ERJ-6BWFR050V if my application does not require automotive qualification?

A: ERJ-6BWFR050V is functionally compatible. The 0.5W power rating provides additional thermal margin compared to the 0.25W original specification. Use this part only if your circuit design accommodates the higher power rating and if the increased height (0.030" vs. 0.024") does not create PCB layout conflicts.

Q: Is RCWE080550L0FNEA suitable for non-automotive applications?

A: Yes. RCWE080550L0FNEA meets all core electrical and mechanical requirements for CRL0805-FW-R050ELF. The automotive AEC-Q200 qualification and moisture-resistant composition represent additional capabilities that do not restrict use in general industrial or consumer applications.

Q: Are there any dimensional concerns when substituting these parts?

A: All substitute parts use the 0805 (2012 Metric) package with identical length (0.079" / 2.00mm) and width specifications. Height variations range from 0.024" to 0.030" (0.60mm to 0.75mm). Verify PCB clearance for components with maximum height of 0.030" (ERJ-6BWFR050V) if space constraints exist.

Q: What is the significance of the current-sense feature in CRM0805-FW-R050ELF and CSR series parts?

A: Current-sense designation indicates these resistors are optimized for low-resistance applications where accurate current measurement is required. This feature does not prevent use in standard resistive applications but confirms suitability for precision current-monitoring circuits.