MCR03EZPFX1471 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1471 is a 1.47 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 and substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Resistance	1.47 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX1471 is determined by the following critical parameters:

Direct Substitutes (Same Package, Same Power Rating): Parts maintaining 0603 package, 0.1W power rating, 1.47 kOhms resistance, and ±1% tolerance are considered direct substitutes. These parts are electrically and mechanically interchangeable without design modification.

Upgrade Substitutes (Larger Package, Higher Power Rating): Parts with 0805 package and 0.125W (1/8W) power rating provide enhanced thermal performance while maintaining the same resistance value and tolerance. These require PCB layout adjustment but offer improved reliability margin.

Similar Substitutes (Same Package, Different Features): Parts in 0603 package with equivalent electrical specifications but different feature sets (such as moisture-resistant composition without AEC-Q200 rating) are listed for reference where automotive qualification is not mandatory.

Downsized Substitutes (Smaller Package): The 0402 package option maintains electrical specifications but reduces board space at the cost of lower thermal dissipation capability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	AEC-Q200	Product Status	Inventory
MCR03EZPFX1471	Rohm Semiconductor	1.47 kΩ	±1%	0.1	0603	±100ppm/°C	Yes	Discontinued	773 Pcs
MCR03ERTF1471	Rohm Semiconductor	1.47 kΩ	±1%	0.1	0603	±100ppm/°C	No	Discontinued	1428 Pcs
CRCW06031K47FKEA	Vishay Dale	1.47 kΩ	±1%	0.1	0603	±100ppm/°C	Yes	Active	29558 Pcs
ERJ-3EKF1471V	Panasonic Electronic Components	1.47 kΩ	±1%	0.1	0603	±100ppm/°C	Yes	Active	86079 Pcs
RMCF0603FT1K47	Stackpole Electronics Inc	1.47 kΩ	±1%	0.1	0603	±100ppm/°C	Yes	Active	142030 Pcs
ERJ-2RKF1471X	Panasonic Electronic Components	1.47 kΩ	±1%	0.1	0402	±100ppm/°C	Yes	Active	86700 Pcs
CR0603-FX-1471ELF	Bourns Inc.	1.47 kΩ	±1%	0.1	0603	±100ppm/°C	No	Active	40346 Pcs
KTR10EZPF1471	Rohm Semiconductor	1.47 kΩ	±1%	0.125	0805	±100ppm/°C	Yes	Active	15332 Pcs
ERJ-6ENF1471V	Panasonic Electronic Components	1.47 kΩ	±1%	0.125	0805	±100ppm/°C	Yes	Active	143943 Pcs
RMCF0805FT1K47	Stackpole Electronics Inc	1.47 kΩ	±1%	0.125	0805	±100ppm/°C	Yes	Active	105429 Pcs
CR0805-FX-1471ELF	Bourns Inc.	1.47 kΩ	±1%	0.125	0805	±100ppm/°C	No	Active	14798 Pcs

Engineering Selection Recommendations

For Direct Replacement (0603, 0.1W): RMCF0603FT1K47, ERJ-3EKF1471V, and CRCW06031K47FKEA are active production parts with AEC-Q200 certification and high inventory availability. These provide pin-for-pin compatibility without PCB modification.

For Automotive Applications Requiring AEC-Q200: All recommended direct substitutes carry AEC-Q200 qualification. MCR03ERTF1471 from Rohm Semiconductor maintains manufacturer continuity but lacks AEC-Q200 rating on this specific variant.

For Enhanced Thermal Performance: KTR10EZPF1471, ERJ-6ENF1471V, and RMCF0805FT1K47 offer 0805 package with 0.125W rating, providing improved heat dissipation. These require PCB layout adjustment but maintain AEC-Q200 compliance and active production status.

For Non-Automotive Applications: CR0603-FX-1471ELF and CR0805-FX-1471ELF from Bourns Inc. provide moisture-resistant thick film composition without automotive qualification, suitable for general industrial use.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF1471 replace MCR03EZPFX1471 directly? A: MCR03ERTF1471 is mechanically and electrically compatible with identical package, resistance, tolerance, and power rating. However, it lacks AEC-Q200 automotive certification present in the original part. Use only if automotive qualification is not required.

Q: What is the difference between 0603 and 0402 packages? A: The 0402 package (ERJ-2RKF1471X) is physically smaller (1.00mm x 0.50mm vs 1.60mm x 0.80mm) and reduces board space. Both maintain identical electrical specifications and AEC-Q200 rating. The 0402 has lower thermal mass and may require thermal analysis in high-power applications.

Q: When should I use 0805 package upgrades? A: The 0805 variants (KTR10EZPF1471, ERJ-6ENF1471V, RMCF0805FT1K47) provide 0.125W power rating versus 0.1W in the original. Use these when thermal margin is required or when circuit dissipation approaches the 0.1W limit. PCB layout modification is necessary.

Q: Are all substitute parts ROHS3 compliant? A: All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specifications.

Q: Which substitute offers the best inventory availability? A: RMCF0603FT1K47 from Stackpole Electronics Inc. has the highest inventory at 142,030 pieces for direct 0603 replacement. For 0805 upgrades, ERJ-6ENF1471V offers 143,943 pieces.

Q: Can I use Bourns CR0603-FX-1471ELF in automotive applications? A: CR0603-FX-1471ELF lacks AEC-Q200 certification. Use only in non-automotive or non-safety-critical applications. For automotive use, select parts with explicit AEC-Q200 rating.

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