MCR03EZPFX1541 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1541 is a 1.54 kOhms ±1% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives. The component meets automotive AEC-Q200 qualification and ROHS3 compliance requirements. Substitute parts must maintain identical electrical specifications and package dimensions to ensure direct board-level compatibility.

Key Parameters

Parameter	Specification
Resistance Value	1.54 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts are qualified based on the following criteria:

Electrical Parameters (Must Match):

Resistance value: 1.54 kOhms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

Package / Case: 0603 (1608 Metric)
Number of terminations: 2
Moisture Sensitivity Level: 1 (Unlimited)

Compliance Parameters:

RoHS Status: ROHS3 Compliant
REACH Status: REACH Unaffected

All identified substitute parts meet these criteria. Substitutes are categorized by product status and manufacturing features to support engineering selection decisions.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	Features	Product Status	RoHS
MCR03EZPFX1541	Rohm Semiconductor	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued	ROHS3
TRR03EZPF1541	Rohm Semiconductor	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Anti-Sulfur	Obsolete	ROHS3
CRCW06031K54FKEA	Vishay Dale	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	ROHS3
ERJ-3EKF1541V	Panasonic Electronic Components	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	ROHS3
RMCF0603FT1K54	Stackpole Electronics Inc	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	ROHS3
CR0603-FX-1541ELF	Bourns Inc.	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	ROHS3
RC0603FR-071K54L	YAGEO	1.54 kOhms	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	ROHS3

Engineering Selection Recommendations

For Automotive Applications (AEC-Q200 Required): CRCW06031K54FKEA (Vishay Dale), ERJ-3EKF1541V (Panasonic), and RMCF0603FT1K54 (Stackpole Electronics) are qualified substitutes. All three maintain active product status with automotive AEC-Q200 certification. CRCW06031K54FKEA offers the highest inventory availability (34,334 units). ERJ-3EKF1541V provides the largest stock (92,218 units). RMCF0603FT1K54 offers the most extensive inventory (204,509 units).

For Non-Automotive Applications: CR0603-FX-1541ELF (Bourns) and RC0603FR-071K54L (YAGEO) are suitable alternatives with moisture-resistant thick film composition. Both maintain active product status and ROHS3 compliance. RC0603FR-071K54L provides significantly higher inventory (229,989 units).

Obsolete Part Alternatives: TRR03EZPF1541 (Rohm Semiconductor) is marked obsolete and should not be selected for new designs despite electrical equivalence.

Frequently Asked Questions (FAQ)

Q: Can MCR03EZPFX1541 be directly replaced with any of these substitute parts? A: Yes. All listed substitute parts match the required electrical specifications (1.54 kOhms ±1%, 0.1W), package dimensions (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Direct board-level substitution is supported without circuit redesign.

Q: Which substitute is best for automotive applications? A: CRCW06031K54FKEA, ERJ-3EKF1541V, and RMCF0603FT1K54 all carry AEC-Q200 automotive qualification matching the original part. Selection should be based on availability, lead time, and supply chain preferences.

Q: Are there differences in physical dimensions between substitutes? A: Dimensions are functionally equivalent across all substitutes. MCR03EZPFX1541, TRR03EZPF1541, ERJ-3EKF1541V, and RC0603FR-071K54L share identical dimensions (0.063" L x 0.031" W, 0.022" max height). CRCW06031K54FKEA and RMCF0603FT1K54 have minor variations (0.061" L x 0.033" W and 0.061" L x 0.031" W respectively, 0.020" and 0.022" max height) that remain within 0603 package tolerance and do not affect PCB layout compatibility.

Q: What is the difference between Automotive AEC-Q200 and Moisture Resistant variants? A: AEC-Q200 certified parts (CRCW06031K54FKEA, ERJ-3EKF1541V, RMCF0603FT1K54) meet automotive qualification standards. Moisture Resistant variants (CR0603-FX-1541ELF, RC0603FR-071K54L) emphasize environmental protection without automotive certification. Selection depends on application requirements.

Q: Can obsolete parts like TRR03EZPF1541 be used? A: TRR03EZPF1541 is marked obsolete and carries supply risk. Active alternatives should be prioritized for new designs and long-term production.

Q: Are all substitutes ROHS3 compliant? A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH Unaffected status, matching the original MCR03EZPFX1541 environmental requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message