MCR03EZPFX2492 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX2492 is a 24.9 kOhms ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W power dissipation. Manufactured by Rohm Semiconductor under the MCR series, this component is designed for automotive applications with AEC-Q200 qualification and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	24.9 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX2492 is determined by strict equivalence across the following parameters:

Resistance Value: 24.9 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 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)
RoHS Compliance: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All identified substitute parts meet these criteria. Variations in manufacturer-specific features (such as AEC-Q200 automotive qualification versus moisture-resistant construction) do not disqualify substitution when core electrical and mechanical parameters are identical.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	Product Status	RoHS
MCR03EZPFX2492	Rohm Semiconductor	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued	ROHS3
TRR03EZPF2492	Rohm Semiconductor	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Anti-Sulfur	Obsolete	ROHS3
CRCW060324K9FKEA	Vishay Dale	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	ROHS3
ERJ-3EKF2492V	Panasonic Electronic Components	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	ROHS3
RMCF0603FT24K9	Stackpole Electronics Inc	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	ROHS3
CR0603-FX-2492ELF	Bourns Inc.	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	ROHS3
RC0603FR-0724K9L	YAGEO	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	ROHS3
RC1608F2492CS	Samsung Electro-Mechanics	24.9 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	ROHS3

Engineering Selection Recommendations

For applications requiring direct functional replacement of the MCR03EZPFX2492, the following selection criteria apply:

Automotive Applications with AEC-Q200 Requirement: CRCW060324K9FKEA (Vishay Dale), ERJ-3EKF2492V (Panasonic Electronic Components), and RMCF0603FT24K9 (Stackpole Electronics Inc) are active products with automotive AEC-Q200 qualification, providing equivalent reliability assurance for automotive-grade designs.

General Industrial Applications: CR0603-FX-2492ELF (Bourns Inc.), RC0603FR-0724K9L (YAGEO), and RC1608F2492CS (Samsung Electro-Mechanics) are active products with moisture-resistant construction suitable for non-automotive applications requiring equivalent electrical performance.

Supply Chain Continuity: All substitute parts listed maintain active product status with established inventory availability, ensuring long-term sourcing reliability compared to the discontinued MCR03EZPFX2492.

Frequently Asked Questions (FAQ)

Q: Can I substitute the MCR03EZPFX2492 with any of the listed alternatives?

A: Yes. All listed parts meet the core electrical and mechanical specifications: 24.9 kOhms ±1%, 0.1W power rating, 0603 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and ROHS3 compliance. Selection depends on application-specific requirements such as automotive qualification or moisture resistance.

Q: What is the difference between AEC-Q200 qualified parts and moisture-resistant parts?

A: AEC-Q200 qualified parts (CRCW060324K9FKEA, ERJ-3EKF2492V, RMCF0603FT24K9) are certified for automotive applications with defined reliability standards. Moisture-resistant parts (CR0603-FX-2492ELF, RC0603FR-0724K9L, RC1608F2492CS) are designed for enhanced performance in humid environments. Both meet identical electrical specifications but serve different application contexts.

Q: Are there physical dimension differences between substitute parts?

A: All parts use the 0603 (1608 Metric) package. Minor variations exist in seated height (0.020" to 0.022") and length/width dimensions (1.55mm to 1.60mm), which are within standard PCB design tolerances and do not affect interchangeability on standard 0603 footprints.

Q: Why is the MCR03EZPFX2492 discontinued?

A: The MCR03EZPFX2492 is discontinued at DiGi Electronics. Active alternatives from multiple manufacturers provide equivalent performance with improved supply chain availability.

Q: Which substitute should I choose for new designs?

A: For automotive applications, select from CRCW060324K9FKEA, ERJ-3EKF2492V, or RMCF0603FT24K9. For general industrial use, CR0603-FX-2492ELF, RC0603FR-0724K9L, or RC1608F2492CS are suitable. All maintain identical electrical performance and ROHS3 compliance.

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