CSR0805JK50L0 Equivalent & Substitute Parts

Part Overview

The CSR0805JK50L0 is a 50 mOhms ±5% thick film chip resistor in 0805 (2012 Metric) package rated for 0.25W power dissipation. Designed for current sensing applications, this component operates across -55°C to 155°C with a temperature coefficient of ±200ppm/°C. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, power rating increases, or when automotive-grade alternatives with enhanced reliability certifications are acceptable for the application.

Substiute Parts

CSR0805JK50L0

Stackpole Electronics IncIn Stock: 824CSR0805JK50L0 Datasheet

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CSR0805FK50L0

Stackpole Electronics IncIn Stock: 2543CSR0805FK50L0 Datasheet

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ERJ-6BWFR050V

Panasonic Electronic ComponentsIn Stock: 218257ERJ-6BWFR050V Datasheet

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ERJ-6BWJR050V

Panasonic Electronic ComponentsIn Stock: 6049ERJ-6BWJR050V Datasheet

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RCWE080550L0FNEA

Vishay DaleIn Stock: 15146RCWE080550L0FNEA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Compatibility Parameters:

• Resistance value: 50 mOhms (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• Temperature coefficient: ±200ppm/°C or 0/+200ppm/°C (compatible range)

Allowable Variation Parameters:

• Tolerance: ±5% (original) to ±1% (tighter tolerance acceptable as upgrade)
• Power rating: 0.25W (original) to 0.5W (higher rating acceptable as upgrade)
• Certifications: Standard to AEC-Q200 automotive grade (acceptable addition)
• Moisture resistance: Standard to enhanced moisture resistant (acceptable addition)

All substitute parts listed maintain the same electrical performance at the specified resistance value while meeting or exceeding the original part's environmental and reliability specifications.

Parameter Comparison

Engineering Selection Recommendations

CSR0805FK50L0 (Stackpole Electronics Inc): Direct upgrade within the same manufacturer series. Maintains identical package, power rating, and thermal characteristics while improving tolerance to ±1%. Suitable for applications requiring tighter resistance accuracy without changing board layout or thermal design.

ERJ-6BWFR050V (Panasonic Electronic Components): Automotive-grade substitute with AEC-Q200 certification and increased power rating to 0.5W. Recommended for applications requiring enhanced reliability qualification or higher thermal margin. Temperature coefficient specification (0/+200ppm/°C) remains compatible with original design parameters.

ERJ-6BWJR050V (Panasonic Electronic Components): Automotive-grade alternative maintaining original ±5% tolerance with increased 0.5W power rating and AEC-Q200 certification. Applicable when automotive qualification is required without tolerance tightening.

RCWE080550L0FNEA (Vishay Dale): Automotive-grade option with AEC-Q200 certification, ±1% tolerance, and integrated moisture-resistant construction. Maintains original 0.25W power rating with enhanced environmental protection. Suitable for high-reliability applications in moisture-prone environments.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory conformance.

Frequently Asked Questions (FAQ)

Q: Can CSR0805FK50L0 be used as a direct replacement for CSR0805JK50L0?

A: Yes. Both parts share identical resistance, package, power rating, and operating temperature range. The CSR0805FK50L0 provides tighter ±1% tolerance compared to the original ±5%, making it a compatible upgrade with improved accuracy.

Q: What is the primary difference between Stackpole and Panasonic substitutes?

A: Panasonic ERJ-6BW series parts include AEC-Q200 automotive qualification and are available with 0.5W power rating options. Stackpole CSR series maintains standard industrial-grade specifications. Selection depends on automotive certification requirements and thermal design margins.

Q: Are the Panasonic ERJ-6BWFR050V and ERJ-6BWJR050V interchangeable?

A: Both are AEC-Q200 qualified 0.5W automotive-grade parts in 0805 package. The primary difference is tolerance: ERJ-6BWFR050V is ±1% while ERJ-6BWJR050V is ±5%. Selection depends on circuit accuracy requirements.

Q: Does RCWE080550L0FNEA offer advantages over other substitutes?

A: RCWE080550L0FNEA combines AEC-Q200 automotive certification, ±1% tolerance, and moisture-resistant construction while maintaining the original 0.25W power rating. This combination is optimal for high-reliability applications in moisture-sensitive environments without requiring increased thermal dissipation capacity.

Q: Will substituting with a higher power-rated part affect circuit performance?

A: No. Higher power rating (0.5W vs. 0.25W) indicates increased thermal capacity without changing electrical characteristics at the specified 50 mOhms resistance. The part will operate cooler under identical current conditions, improving reliability margins.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory conformance and handling compatibility with the original part.