CRCW08055K49FKEAC Equivalent & Substitute Parts

Part Overview

The CRCW08055K49FKEAC is a 5.49 kOhms ±1% 0.125W chip resistor manufactured by Vishay Dale in 0805 (2012 Metric) package format. This thick film resistor is designed for surface mount applications requiring precision resistance values with tight tolerance specifications. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and performance envelope.

Substiute Parts

CRCW08055K49FKEAC

Vishay DaleIn Stock: 836CRCW08055K49FKEAC Datasheet

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CR0805-FX-5491ELF

Bourns Inc.In Stock: 26005CR0805-FX-5491ELF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CRCW08055K49FKEAC is determined by strict equivalence across the following parameters:

• Resistance value: 5.49 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Package footprint: 0805 (2012 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Regulatory compliance: RoHS3 Compliant, REACH Unaffected (minimum requirement)

The CR0805-FX-5491ELF from Bourns Inc. satisfies all substitution criteria with identical electrical specifications and mechanical dimensions. The addition of moisture-resistant features in the Bourns variant provides enhanced environmental protection while maintaining full compatibility with the original part specification.

Parameter Comparison

Engineering Selection Recommendations

Both the CRCW08055K49FKEAC and CR0805-FX-5491ELF maintain Active product status with full regulatory compliance. The Vishay Dale CRCW08055K49FKEAC is the primary specification part. The Bourns Inc. CR0805-FX-5491ELF serves as a direct electrical and mechanical equivalent with moisture-resistant construction. Selection between these parts depends on supply availability and application-specific environmental requirements. Both parts satisfy RoHS3 and REACH compliance requirements for regulated markets.

Frequently Asked Questions (FAQ)

Q: Can the CR0805-FX-5491ELF replace the CRCW08055K49FKEAC in existing designs?

A: Yes. The CR0805-FX-5491ELF is electrically and mechanically equivalent. Both parts share identical resistance (5.49 kOhms), tolerance (±1%), power rating (0.125W), package footprint (0805), and operating temperature range (-55°C ~ 155°C). PCB layout and assembly processes require no modification.

Q: What is the significance of the moisture-resistant feature in the Bourns variant?

A: The moisture-resistant composition in the CR0805-FX-5491ELF provides enhanced environmental protection. This feature does not alter electrical performance or mechanical compatibility. It represents an enhancement to the base thick film construction.

Q: Are there any compliance differences between these parts?

A: No. Both parts are RoHS3 Compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Regulatory status is identical.

Q: Do these parts require different soldering or assembly procedures?

A: No. Both parts use identical 0805 (2012 Metric) package specifications with matching dimensions and termination counts. Standard SMD assembly processes apply to both.

Q: What determines substitution eligibility for this resistor?

A: Substitution requires exact equivalence in resistance value (5.49 kOhms), tolerance (±1%), power rating (0.125W), package format (0805), composition (Thick Film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). All criteria must be met simultaneously.