CRCW08051R78FNTA Equivalent & Substitute Parts

Part Overview

The CRCW08051R78FNTA is a 1.78 Ohm ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 921 pieces available in stock. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for circuit implementations requiring this specific resistance value and electrical performance.

Substiute Parts

CRCW08051R78FNTA

Vishay DaleIn Stock: 968CRCW08051R78FNTA Datasheet

Current PartRFQ

RMCF0805FT1R78

Stackpole Electronics IncIn Stock: 10378RMCF0805FT1R78 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CRCW08051R78FNTA is determined by strict equivalence across the following critical parameters:

• Resistance value: 1.78 Ohms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive qualification: AEC-Q200
• Number of terminations: 2

The RMCF0805FT1R78 manufactured by Stackpole Electronics Inc meets all these electrical and mechanical parameters and is classified as a direct substitute. Both parts share identical resistance, tolerance, power rating, package dimensions, and automotive qualification requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the CRCW08051R78FNTA and RMCF0805FT1R78 are functionally equivalent for applications requiring a 1.78 Ohm ±1% 0.125W thick film resistor in 0805 package with AEC-Q200 automotive qualification. The primary distinction is RoHS compliance status: the Stackpole Electronics RMCF0805FT1R78 is ROHS3 compliant, while the Vishay Dale CRCW08051R78FNTA is RoHS non-compliant. Selection between these parts should be based on regulatory requirements and compliance mandates applicable to the end application. The maximum seated height difference of 0.006" (0.15mm) between the two parts is within typical PCB design tolerances for 0805 components and does not present a constraint for standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can RMCF0805FT1R78 be used as a direct replacement for CRCW08051R78FNTA?

A: Yes. Both parts share identical electrical specifications (1.78 Ohms ±1%, 0.125W), package dimensions (0805 / 2012 Metric), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The parts are mechanically and electrically interchangeable.

Q: What is the significance of the RoHS compliance difference?

A: The RMCF0805FT1R78 is ROHS3 compliant while the CRCW08051R78FNTA is RoHS non-compliant. RoHS compliance is a regulatory requirement in certain markets and applications. Selection should align with applicable environmental and regulatory standards for the target application.

Q: Are there any physical dimension constraints between these parts?

A: The seated height differs by 0.006" (0.15mm), with the RMCF0805FT1R78 at 0.026" maximum and the CRCW08051R78FNTA at 0.020" maximum. This difference is within standard PCB design tolerances for 0805 surface mount components and does not affect standard assembly processes.

Q: What packaging formats are available for these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging format suitable for automated surface mount assembly.

Q: Are these parts suitable for automotive applications?

A: Yes. Both parts carry AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards.