MCR03EZPFX1821 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1821 is a 1.82 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.

Key Parameters

Parameter	Value
Resistance	1.82 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)

Substitute Part Grouping Explanation

Substitution for MCR03EZPFX1821 is determined by strict equivalence across the following parameters:

Resistance value: 1.82 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
RoHS3 compliance
MSL rating: 1 (Unlimited)

Parts are categorized as direct substitutes when all electrical and mechanical parameters match exactly. Similar substitutes meet all core electrical specifications but may have minor dimensional variations or different feature sets (such as moisture resistance vs. automotive AEC-Q200 rating).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Features	Product Status	Inventory
MCR03EZPFX1821	Rohm Semiconductor	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued	895 Pcs
MCR03ERTF1821	Rohm Semiconductor	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Thick Film	Discontinued	673 Pcs
CRCW06031K82FKEA	Vishay Dale	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	28523 Pcs
CRCW06031K82FKEB	Vishay Dale	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Discontinued	21105 Pcs
ERJ-3EKF1821V	Panasonic Electronic Components	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	70574 Pcs
RMCF0603FT1K82	Stackpole Electronics Inc	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	128737 Pcs
CR0603-FX-1821ELF	Bourns Inc.	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	32222 Pcs
RC0603FR-071K82L	YAGEO	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	203880 Pcs
RC1608F1821CS	Samsung Electro-Mechanics	1.82 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	1673 Pcs

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 compliance, select from the following active parts: CRCW06031K82FKEA (Vishay Dale), ERJ-3EKF1821V (Panasonic), or RMCF0603FT1K82 (Stackpole Electronics). These parts maintain the automotive qualification of the original MCR03EZPFX1821.

For non-automotive applications where AEC-Q200 certification is not required, moisture-resistant alternatives CR0603-FX-1821ELF (Bourns), RC0603FR-071K82L (YAGEO), and RC1608F1821CS (Samsung) provide equivalent electrical performance with active product status and higher inventory availability.

All listed substitutes are ROHS3 compliant with MSL rating of 1 (Unlimited) and identical temperature coefficient and operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can I use a moisture-resistant part as a substitute for an AEC-Q200 part?

A: Moisture-resistant and AEC-Q200 rated parts meet different qualification standards. If your application requires automotive AEC-Q200 compliance, use only parts explicitly rated for AEC-Q200. If automotive qualification is not required, moisture-resistant alternatives are electrically equivalent.

Q: Are there dimensional differences between substitute parts?

A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within tolerance: length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within standard PCB design tolerances for 0603 components.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Both packaging formats contain identical components. Cut Tape (CT) is suitable for smaller quantities and manual assembly, while Tape & Reel (TR) is optimized for automated pick-and-place equipment and higher volume production.

Q: Why is MCR03EZPFX1821 discontinued?

A: The original part is discontinued at DiGi Electronics. Direct substitutes from the same manufacturer (MCR03ERTF1821) and equivalent parts from other manufacturers remain available with active product status.

Q: Do all substitutes have the same temperature coefficient?

A: Yes. All listed substitutes maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range, ensuring thermal performance equivalence.

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