MCR03EZPFX5491 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX5491 is a 5.49 kOhms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This component is rated for automotive applications under AEC-Q200 standard with an operating temperature range of -55°C to 155°C. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

MCR03EZPFX5491

Rohm SemiconductorIn Stock: 880MCR03EZPFX5491 Datasheet

Current PartRFQ

CRCW06035K49FKEA

Vishay DaleIn Stock: 24570CRCW06035K49FKEA Datasheet

DirectRFQ

ERJ-3EKF5491V

Panasonic Electronic ComponentsIn Stock: 142586ERJ-3EKF5491V Datasheet

DirectRFQ

RMCF0603FT5K49

Stackpole Electronics IncIn Stock: 1254481RMCF0603FT5K49 Datasheet

DirectRFQ

CR0603-FX-5491ELF

Bourns Inc.In Stock: 17270CR0603-FX-5491ELF Datasheet

SimilarRFQ

CRG0603F5K49

TE Connectivity Passive ProductIn Stock: 33805CRG0603F5K49 Datasheet

SimilarRFQ

RC0603FR-075K49L

YAGEOIn Stock: 700285RC0603FR-075K49L Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX5491 is determined by strict equivalence across the following parameters:

• Resistance value: 5.49 kOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical parameters. Direct substitutes maintain full AEC-Q200 automotive qualification. Similar substitutes meet all electrical specifications but may have different feature sets (such as moisture resistance designation) while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring strict automotive AEC-Q200 compliance, direct substitutes CRCW06035K49FKEA (Vishay Dale), ERJ-3EKF5491V (Panasonic Electronic Components), and RMCF0603FT5K49 (Stackpole Electronics Inc) are qualified equivalents. All three maintain active product status with established supply availability.

For applications where AEC-Q200 certification is not mandatory, similar substitutes CR0603-FX-5491ELF (Bourns Inc.), CRG0603F5K49 (TE Connectivity Passive Product), and RC0603FR-075K49L (YAGEO) provide functional equivalence with identical electrical parameters and RoHS3 compliance. These options offer significantly higher inventory levels.

All substitute parts are ROHS3 compliant with MSL 1 rating, matching the original component's environmental specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different AEC-Q200 status in automotive applications? A: AEC-Q200 certification is a specific automotive qualification. Parts without this rating (CR0603-FX-5491ELF, CRG0603F5K49, RC0603FR-075K49L) should only be used in applications where automotive qualification is not a design requirement. Verify your application's compliance requirements before selection.

Q: Are all substitute parts mechanically compatible with the original MCR03EZPFX5491? A: All listed substitutes use the 0603 (1608 Metric) package with identical termination count (2). Physical dimensions vary slightly within tolerance (length 1.55-1.60mm, width 0.80-0.85mm, height 0.50-0.55mm), but all are compatible with standard 0603 PCB footprints.

Q: What is the difference between direct and similar substitutes? A: Direct substitutes (CRCW06035K49FKEA, ERJ-3EKF5491V, RMCF0603FT5K49) maintain full AEC-Q200 automotive qualification. Similar substitutes (CR0603-FX-5491ELF, CRG0603F5K49, RC0603FR-075K49L) meet all electrical specifications and RoHS compliance but lack automotive certification.

Q: Do packaging differences affect component selection? A: Packaging format (Tape & Reel, Cut Tape, Digi-Reel) affects handling and assembly logistics but does not impact electrical or mechanical compatibility. Select based on your production process requirements.

Q: Are all substitutes ROHS3 compliant? A: All listed substitute parts are ROHS3 compliant with MSL 1 rating, matching the original component's environmental compliance status.