MCR03EZPFX24R9 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX24R9 is a 24.9 Ohm ±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, necessitating identification of functionally equivalent alternatives that maintain the same electrical and mechanical specifications for continued design support and production requirements.

Key Parameters

Parameter	Specification
Resistance Value	24.9 Ohms
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 to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MCR03EZPFX24R9 are qualified based on strict equivalence of the following parameters: resistance value (24.9 Ohms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, REACH Unaffected, EAR99).

Parts are grouped into two categories:

Direct Substitutes (Automotive AEC-Q200 Rated): CRCW060324R9FKEA, ERJ-3EKF24R9V, and RMCF0603FT24R9 maintain full electrical and mechanical equivalence with automotive qualification.

Similar Substitutes (Non-Automotive or Alternative Features): TRR03EZPF24R9, CR0603-FX-24R9ELF, and RC0603FR-0724R9L meet all core electrical specifications but differ in feature sets (anti-sulfur, moisture resistant) or lack automotive certification.

Non-Equivalent Part: RC0603FR-0724K9L is excluded from substitution due to resistance value of 24.9 kOhms (not 24.9 Ohms) and is therefore not functionally equivalent.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Packaging Type
MCR03EZPFX24R9	Rohm Semiconductor	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	Bulk
CRCW060324R9FKEA	Vishay Dale	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Cut Tape & Digi-Reel
ERJ-3EKF24R9V	Panasonic Electronic Components	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Tape & Reel
RMCF0603FT24R9	Stackpole Electronics Inc	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	Tape & Reel
TRR03EZPF24R9	Rohm Semiconductor	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Obsolete	Tape & Reel
CR0603-FX-24R9ELF	Bourns Inc.	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	Tape & Reel
RC0603FR-0724R9L	YAGEO	24.9 Ω	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	Tape & Reel

Engineering Selection Recommendations

For applications requiring automotive qualification and AEC-Q200 compliance, select from the direct substitutes: CRCW060324R9FKEA (Vishay Dale, active status), ERJ-3EKF24R9V (Panasonic, active status with highest inventory), or RMCF0603FT24R9 (Stackpole, active status). All three maintain full electrical equivalence and automotive certification.

For non-automotive applications where AEC-Q200 is not required, CR0603-FX-24R9ELF (Bourns, moisture resistant) and RC0603FR-0724R9L (YAGEO, moisture resistant, highest inventory availability) are functionally equivalent alternatives. TRR03EZPF24R9 (Rohm, anti-sulfur feature) is electrically equivalent but carries obsolete product status.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and EAR99 classification matching the original part.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for MCR03EZPFX24R9?

A: Yes, all listed substitute parts are electrically and mechanically equivalent. However, if your application requires automotive AEC-Q200 certification, use only CRCW060324R9FKEA, ERJ-3EKF24R9V, or RMCF0603FT24R9. For non-automotive applications, all substitutes are acceptable.

Q: What is the difference between the direct substitutes?

A: CRCW060324R9FKEA, ERJ-3EKF24R9V, and RMCF0603FT24R9 are all AEC-Q200 rated with identical electrical specifications. The primary differences are manufacturer, packaging format (Cut Tape & Digi-Reel versus Tape & Reel), and inventory availability. Selection can be based on supply chain preference and packaging requirements.

Q: Why is RC0603FR-0724K9L listed as non-equivalent?

A: RC0603FR-0724K9L has a resistance value of 24.9 kOhms (24,900 Ohms), not 24.9 Ohms. This is a 1000-fold difference and makes it functionally incompatible with the original part specification.

Q: Are there any dimensional differences between substitutes?

A: Dimensional variations exist within tolerance. MCR03EZPFX24R9, CR0603-FX-24R9ELF, and RC0603FR-0724R9L measure 0.063" L × 0.031" W (1.60mm × 0.80mm). CRCW060324R9FKEA and RMCF0603FT24R9 measure 0.061" L × 0.031" W (1.55mm × 0.80mm) and 0.061" L × 0.031" W (1.55mm × 0.80mm) respectively. Height variations range from 0.020" to 0.022" (0.50mm to 0.55mm). These differences are within 0603 package tolerance and do not affect PCB assembly compatibility.

Q: What packaging options are available?

A: CRCW060324R9FKEA is supplied in Cut Tape & Digi-Reel format. ERJ-3EKF24R9V, RMCF0603FT24R9, CR0603-FX-24R9ELF, RC0603FR-0724R9L, and TRR03EZPF24R9 are supplied in Tape & Reel format. Select based on your assembly process requirements.

Q: Do all substitutes meet RoHS and REACH requirements?

A: Yes, all substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99, matching the original MCR03EZPFX24R9 compliance profile.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message