MCR03EZPFX1802 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1802 is an 18 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, necessitating identification of equivalent alternatives that maintain identical electrical and mechanical specifications for seamless integration into existing designs.

Key Parameters

Parameter	Value
Resistance	18 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 to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (18 kOhms), 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, MSL 1).

Direct Substitutes maintain all electrical and mechanical specifications identical to the MCR03EZPFX1802, including AEC-Q200 automotive qualification where applicable. These parts are interchangeable without design modification.

Similar Substitutes meet all core electrical and mechanical requirements but may include additional features (moisture resistance, anti-sulfur coating) or differ in specific packaging configurations (Cut Tape vs. Tape & Reel). These parts are functionally equivalent for the specified application parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status	Inventory
MCR03EZPFX1802	Rohm Semiconductor	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Discontinued	805
CRCW060318K0FKEA	Vishay Dale	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	5000200
CRCW060318K0FKEB	Vishay Dale	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Discontinued	19983
CRG0603F18K	TE Connectivity Passive Product	18 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Active	20358
ERJ-3EKF1802V	Panasonic Electronic Components	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	261545
RMCF0603FT18K0	Stackpole Electronics Inc	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	40562
AC0603FR-0718KL	YAGEO	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	281637
AF0603FR-0718KL	YAGEO	18 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Active	9793
CR0603-FX-1802ELF	Bourns Inc.	18 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Active	107271
RC0603FR-0718KL	YAGEO	18 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Active	257891

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification, select from: CRCW060318K0FKEA (Vishay Dale, active status with highest inventory), ERJ-3EKF1802V (Panasonic, active status with extensive availability), RMCF0603FT18K0 (Stackpole, active status), AC0603FR-0718KL (YAGEO, active status with moisture-resistant feature), or AF0603FR-0718KL (YAGEO, active status with anti-sulfur feature).

For applications without specific AEC-Q200 requirement, CRG0603F18K (TE Connectivity, active status), CR0603-FX-1802ELF (Bourns, active status with moisture-resistant feature), and RC0603FR-0718KL (YAGEO, active status with moisture-resistant feature) provide equivalent electrical and mechanical performance.

CRCW060318K0FKEA is recommended as the primary substitute due to active product status, AEC-Q200 compliance, and superior inventory availability (5,000,200 units).

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different packaging (Cut Tape vs. Tape & Reel)? A: Yes. All listed substitutes use identical 0603 (1608 Metric) package specifications. Packaging format (Cut Tape or Tape & Reel) affects procurement and handling only, not electrical or mechanical compatibility.

Q: What is the difference between direct and similar substitutes? A: Direct substitutes maintain identical specifications to the MCR03EZPFX1802. Similar substitutes meet all core electrical and mechanical requirements but include additional features such as moisture resistance or anti-sulfur coating, or lack specific certifications like AEC-Q200. All are functionally equivalent for the specified application parameters.

Q: Is AEC-Q200 certification required for my application? A: AEC-Q200 certification is mandatory for automotive applications subject to automotive industry standards. For non-automotive applications, parts without AEC-Q200 rating are acceptable if all other electrical and mechanical parameters match.

Q: Do all substitutes have the same physical dimensions? A: All substitutes conform to the 0603 (1608 Metric) package standard. Minor dimensional variations exist within tolerance (length 1.55–1.60mm, width 0.80–0.85mm, height 0.50–0.55mm seated maximum). These variations are within standard PCB design tolerances and do not affect placement or soldering.

Q: Which substitute has the best availability? A: CRCW060318K0FKEA (Vishay Dale) offers the highest inventory at 5,000,200 units with active product status and AEC-Q200 compliance.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitutes are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited), matching the original MCR03EZPFX1802 specifications.

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