CRCW04028R45FNED Equivalent & Substitute Parts

Part Overview

The CRCW04028R45FNED is an 8.45 Ohm ±1% thick film chip resistor in 0402 (1005 Metric) package rated for 1/16W (0.063W) power dissipation. Manufactured by Vishay Dale, this component meets AEC-Q200 automotive qualification standards and operates across -55°C to 155°C. The part is actively produced and widely stocked. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and component availability across manufacturing cycles.

Substiute Parts

CRCW04028R45FNED

Vishay DaleIn Stock: 897CRCW04028R45FNED Datasheet

Current PartRFQ

CRCW04028R45FKED

Vishay DaleIn Stock: 28433CRCW04028R45FKED Datasheet

UpgradeRFQ

RMCF0402FT8R45

Stackpole Electronics IncIn Stock: 10126RMCF0402FT8R45 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CRCW04028R45FNED is determined by strict equivalence across the following parameters: resistance value (8.45 Ohms), tolerance (±1%), power rating (0.063W), package type (0402), composition (thick film), automotive qualification (AEC-Q200), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, REACH Unaffected).

The identified substitute parts maintain all critical electrical and mechanical specifications. Temperature coefficient variation (±100ppm/°C vs ±200ppm/°C) does not disqualify substitution as both values fall within acceptable automotive-grade performance bands for this resistor category. All substitute parts are actively produced, AEC-Q200 qualified, and available in identical packaging.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CRCW04028R45FNED, CRCW04028R45FKED, and RMCF0402FT8R45—are functionally equivalent for direct substitution in circuits requiring 8.45 Ohm ±1% resistors in 0402 package format. Selection between these parts may be based on:

Manufacturer preference: CRCW04028R45FKED (Vishay Dale upgrade variant) offers improved temperature coefficient stability at ±100ppm/°C compared to the original ±200ppm/°C specification, providing enhanced performance margin in temperature-sensitive applications while maintaining identical electrical ratings and AEC-Q200 qualification.

Supply chain diversity: RMCF0402FT8R45 (Stackpole Electronics) provides cross-manufacturer sourcing to mitigate single-supplier dependency. This part maintains equivalent electrical performance and automotive qualification with identical package specifications.

Compliance and certification: All three parts are ROHS3 compliant, REACH unaffected, and carry AEC-Q200 automotive qualification. MSL 1 rating ensures unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: Can CRCW04028R45FKED replace CRCW04028R45FNED in existing designs?

A: Yes. Both parts are Vishay Dale products with identical resistance (8.45 Ohms), tolerance (±1%), power rating (0.063W), and 0402 package. The FKED variant features improved temperature coefficient (±100ppm/°C vs ±200ppm/°C), making it a direct upgrade with no circuit modifications required.

Q: Is RMCF0402FT8R45 from Stackpole Electronics compatible with the original Vishay Dale part?

A: Yes. The Stackpole RMCF0402FT8R45 meets all electrical and mechanical specifications: 8.45 Ohms ±1%, 0.063W power rating, 0402 package, thick film composition, and AEC-Q200 automotive qualification. Identical operating temperature range (-55°C to 155°C) and MSL 1 rating confirm full compatibility.

Q: What is the significance of temperature coefficient differences (±100ppm/°C vs ±200ppm/°C)?

A: Temperature coefficient defines resistance change per degree Celsius. The ±100ppm/°C specification (CRCW04028R45FKED) provides tighter tolerance stability across the -55°C to 155°C operating range compared to ±200ppm/°C. Both values are within automotive-grade performance standards for thick film resistors and do not affect substitution eligibility.

Q: Are all three parts suitable for automotive applications?

A: Yes. All parts carry AEC-Q200 qualification, the automotive industry standard for discrete semiconductors and passive components. This certification confirms reliability testing, quality assurance, and performance validation for automotive environments.

Q: What packaging format is used for these parts?

A: All three parts are supplied in Tape & Reel (TR) format, standard for automated assembly processes. The 0402 (1005 Metric) package dimensions are 0.039" L × 0.020" W (1.00mm × 0.50mm) with maximum seated height of 0.016" (0.40mm).