CRCW080554K9FKEAC Equivalent & Substitute Parts

Part Overview

The CRCW080554K9FKEAC is a 54.9 kOhms ±1% 0.125W chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This thick film resistor is designed for general-purpose applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production and widely available, with 698 pieces in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, supply chain alternatives, or specific application requirements such as automotive qualification or enhanced moisture resistance.

Substiute Parts

CRCW080554K9FKEAC

Vishay DaleIn Stock: 791CRCW080554K9FKEAC Datasheet

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CR0805-FX-5492ELF

Bourns Inc.In Stock: 25635CR0805-FX-5492ELF Datasheet

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KTR10EZPF5492

Rohm SemiconductorIn Stock: 5248KTR10EZPF5492 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CRCW080554K9FKEAC are qualified based on the following criteria:

Electrical Equivalence: All substitute parts must match the resistance value of 54.9 kOhms with ±1% tolerance, power rating of 0.125W, and temperature coefficient of ±100ppm/°C.

Mechanical Compatibility: All substitute parts must use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and two terminations to ensure direct PCB compatibility.

Environmental & Compliance Standards: All substitute parts must maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status to meet regulatory requirements.

Composition: All substitute parts utilize thick film construction, consistent with the original part specification.

The identified substitute parts meet these criteria while offering additional features such as moisture resistance or automotive qualification where applicable.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CRCW080554K9FKEAC, CR0805-FX-5492ELF, and KTR10EZPF5492—are active production components with full ROHS3 compliance and MSL Level 1 rating, making them suitable for direct substitution in standard applications.

CR0805-FX-5492ELF (Bourns Inc.) is specified with moisture-resistant thick film construction, providing enhanced environmental protection for applications exposed to humidity or moisture-prone conditions.

KTR10EZPF5492 (Rohm Semiconductor) carries AEC-Q200 automotive qualification and high-voltage rating, making it the appropriate choice for automotive applications or systems requiring automotive-grade component reliability. The maximum seated height is 0.026" (0.65mm) compared to 0.024" (0.60mm) for the other parts; this 0.002" difference must be evaluated for applications with strict height constraints.

Frequently Asked Questions (FAQ)

Q: Can CR0805-FX-5492ELF be used as a direct replacement for CRCW080554K9FKEAC?

A: Yes. Both parts share identical electrical specifications (54.9 kOhms ±1%, 0.125W, ±100ppm/°C), mechanical dimensions (0805 package, 2.00mm x 1.25mm), and compliance certifications (ROHS3, MSL 1). The CR0805-FX-5492ELF adds moisture-resistant construction as an additional feature.

Q: What is the difference between KTR10EZPF5492 and the other substitute parts?

A: KTR10EZPF5492 is qualified to AEC-Q200 automotive standards and includes high-voltage rating. All electrical parameters remain equivalent. The maximum seated height is 0.026" (0.65mm) versus 0.024" (0.60mm) for CRCW080554K9FKEAC and CR0805-FX-5492ELF. This 0.002" height difference must be considered for PCB assembly clearance in space-constrained designs.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All three parts are supplied in Tape & Reel (TR) packaging, standard for automated PCB assembly processes.

Q: Do substitute parts maintain the same temperature operating range?

A: Yes. All parts operate across -55°C to 155°C with identical temperature coefficient of ±100ppm/°C.

Q: Which substitute part should be selected for automotive applications?

A: KTR10EZPF5492 is the appropriate choice, as it carries AEC-Q200 automotive qualification. The other parts are not specified with automotive ratings.