MCR03EZPFX2210 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX2210 is a 221 Ohms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This automotive-grade thick film resistor features AEC-Q200 qualification and is designed for high-reliability applications requiring stable performance across -55°C to 155°C operating temperature range. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines or alternative manufacturers that maintain identical electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Resistance Value	221 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 ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for MCR03EZPFX2210 is determined by strict equivalence across the following critical parameters:

Resistance Value: Must be 221 Ohms
Tolerance: Must be ±1%
Power Rating: Must be 0.1W (1/10W)
Package: Must be 0603 (1608 Metric)
Composition: Must be Thick Film
Temperature Coefficient: Must be ±100ppm/°C
Operating Temperature: Must support -55°C ~ 155°C range
Compliance: Must maintain ROHS3 compliance and MSL 1 rating

Substitute parts are classified into two categories:

Direct Substitutes maintain all electrical and mechanical parameters with identical or equivalent automotive qualification (AEC-Q200). These parts are interchangeable without design modification.

Similar Substitutes meet all core electrical and mechanical requirements but may differ in specific features (such as anti-sulfur treatment or moisture resistance enhancements) or automotive certification status. These require design review confirmation before implementation.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX2210	Rohm Semiconductor	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	743 Pcs
MCR03ERTF2210	Rohm Semiconductor	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	692 Pcs
TRR03EZPF2210	Rohm Semiconductor	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Obsolete	9593 Pcs
CRCW0603221RFKEA	Vishay Dale	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	6073 Pcs
ERJ-3EKF2210V	Panasonic Electronic Components	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	90028 Pcs
RMCF0603FG221R	Stackpole Electronics Inc	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	10500 Pcs
RMCF0603FT221R	Stackpole Electronics Inc	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	261653 Pcs
CR0603-FX-2210ELF	Bourns Inc.	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	54221 Pcs
RC0603FR-07221RL	YAGEO	221Ω	±1%	0.1W	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	60453 Pcs

Engineering Selection Recommendations

Preferred Direct Substitutes (AEC-Q200 Qualified, Active Status)

For applications requiring maintained automotive qualification and active product availability, the following parts provide direct substitution:

ERJ-3EKF2210V (Panasonic Electronic Components): Active product with highest inventory availability (90028 Pcs). Maintains AEC-Q200 qualification and identical electrical specifications. Recommended for new designs and high-volume production.
RMCF0603FT221R (Stackpole Electronics Inc): Active product with largest inventory stock (261653 Pcs). AEC-Q200 qualified with identical specifications. Optimal for supply chain continuity and cost optimization.
RMCF0603FG221R (Stackpole Electronics Inc): Active product with AEC-Q200 qualification. Suitable alternative with adequate inventory (10500 Pcs).
CRCW0603221RFKEA (Vishay Dale): Active product with AEC-Q200 qualification. Maintains all electrical and mechanical parameters with 6073 Pcs inventory.

Alternative Substitutes (Non-AEC-Q200, Active Status)

For applications where automotive qualification is not mandatory:

CR0603-FX-2210ELF (Bourns Inc.): Active product with moisture-resistant thick film composition. Meets all electrical and mechanical specifications with 54221 Pcs inventory.
RC0603FR-07221RL (YAGEO): Active product with moisture-resistant thick film composition. Meets all electrical and mechanical specifications with 60453 Pcs inventory.

Discontinued Alternatives (Not Recommended for New Designs)

MCR03ERTF2210 (Rohm Semiconductor): Discontinued status with limited inventory (692 Pcs). Use only for legacy system maintenance.
TRR03EZPF2210 (Rohm Semiconductor): Obsolete status. Use only for legacy system maintenance where no alternatives are available.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF2210 be used as a direct replacement for MCR03EZPFX2210?

A: MCR03ERTF2210 meets all electrical and mechanical specifications (221Ω ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C ~ 155°C). However, it lacks AEC-Q200 automotive qualification and is discontinued. Use only if automotive qualification is not required and for legacy applications only.

Q: What is the difference between RMCF0603FT221R and RMCF0603FG221R?

A: Both parts are manufactured by Stackpole Electronics Inc and meet identical electrical specifications (221Ω ±1%, 0.1W, 0603, AEC-Q200). The primary difference is inventory availability: RMCF0603FT221R has 261653 Pcs in stock versus 10500 Pcs for RMCF0603FG221R. Both are suitable for direct substitution.

Q: Are CR0603-FX-2210ELF and RC0603FR-07221RL suitable for automotive applications?

A: Both parts meet all electrical and mechanical specifications required for the MCR03EZPFX2210 application. However, neither carries AEC-Q200 automotive qualification. They are suitable for non-automotive applications or where automotive qualification is not a design requirement. Confirm application requirements before selection.

Q: Why is ERJ-3EKF2210V recommended over other alternatives?

A: ERJ-3EKF2210V is recommended based on three factors: (1) Active product status ensuring long-term availability, (2) AEC-Q200 automotive qualification matching the original part, and (3) highest inventory availability (90028 Pcs) providing supply chain security.

Q: Can I use TRR03EZPF2210 for new product designs?

A: TRR03EZPF2210 is obsolete and not recommended for new designs. Although it meets electrical specifications, its obsolete status creates supply chain risk. Select from active alternatives such as ERJ-3EKF2210V, RMCF0603FT221R, or CRCW0603221RFKEA.

Q: What packaging formats are available for substitute parts?

A: All substitute parts are available in 0603 (1608 Metric) package format. Packaging options vary by manufacturer: Cut Tape (CT) & Digi-Reel®, or Tape & Reel (TR). Confirm packaging requirements with your procurement process before final selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX2210 specifications.

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