MCR03EZPFX3401 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX3401 is a 3.4 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 functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	3.4 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	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX3401 is determined by strict equivalence across the following parameters: resistance value (3.4 kOhms), tolerance (±1%), power rating (0.1W), package type (0603 / 1608 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1).

All identified substitute parts meet these core electrical and mechanical specifications. Parts are categorized as Direct Manufacturer Equivalents (CRCW06033K40FKEA, ERJ-3EKF3401V, RMCF0603FT3K40) when all parameters match identically, and as Similar Equivalents (AC0603FR-073K4L, CR0603-FX-3401ELF, RC0603FR-073K4L, RC1608F3401CS) when minor dimensional variations exist within acceptable tolerances while maintaining functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS3	MSL	Status
MCR03EZPFX3401	Rohm Semiconductor	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Yes	1	Discontinued
CRCW06033K40FKEA	Vishay Dale	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Yes	1	Active
ERJ-3EKF3401V	Panasonic Electronic Components	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Yes	1	Active
RMCF0603FT3K40	Stackpole Electronics Inc	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Yes	1	Active
AC0603FR-073K4L	YAGEO	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Yes	1	Active
CR0603-FX-3401ELF	Bourns Inc.	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Yes	1	Active
RC0603FR-073K4L	YAGEO	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Yes	1	Active
RC1608F3401CS	Samsung Electro-Mechanics	3.4 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Yes	1	Active

Engineering Selection Recommendations

For applications requiring strict AEC-Q200 automotive compliance, select from the direct manufacturer equivalents: CRCW06033K40FKEA (Vishay Dale), ERJ-3EKF3401V (Panasonic Electronic Components), or RMCF0603FT3K40 (Stackpole Electronics Inc). All three maintain active product status with substantial inventory availability and identical electrical specifications to the original MCR03EZPFX3401.

For non-automotive or less stringent applications where AEC-Q200 certification is not mandatory, the similar equivalents AC0603FR-073K4L, CR0603-FX-3401ELF, RC0603FR-073K4L, and RC1608F3401CS provide functional alternatives with active manufacturing status. All substitute parts maintain ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for MCR03EZPFX3401?

A: All listed substitute parts are electrically and mechanically equivalent in resistance value (3.4 kOhms), tolerance (±1%), power rating (0.1W), package (0603), and temperature specifications. Physical dimensions vary slightly within acceptable tolerances. Selection depends on your application's specific requirements, particularly regarding AEC-Q200 automotive certification.

Q: What is the difference between Direct Manufacturer Equivalents and Similar Equivalents?

A: Direct Manufacturer Equivalents (CRCW06033K40FKEA, ERJ-3EKF3401V, RMCF0603FT3K40) maintain identical specifications including AEC-Q200 rating. Similar Equivalents meet all core electrical and mechanical parameters but may lack automotive certification or have minor dimensional variations. Both categories are functionally interchangeable for the specified resistance, tolerance, and power rating.

Q: Does package size affect substitution?

A: All substitute parts use the 0603 (1608 Metric) package, ensuring PCB footprint compatibility. Minor dimensional variations (length 1.55mm to 1.60mm, width 0.80mm to 0.85mm, height 0.50mm to 0.55mm) are within standard manufacturing tolerances and do not affect board-level assembly or performance.

Q: Are all substitute parts RoHS compliant?

A: Yes, all substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original MCR03EZPFX3401 specifications.

Q: Which substitute offers the best inventory availability?

A: RMCF0603FT3K40 (Stackpole Electronics Inc) offers the highest inventory with 273,985 pieces in stock, followed by ERJ-3EKF3401V (Panasonic) with 179,946 pieces and RC0603FR-073K4L (YAGEO) with 145,623 pieces.

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