MCR03EZPFX3481 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX3481 is a 3.48 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	3.48 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 the MCR03EZPFX3481 is determined by strict equivalence across the following parameters: resistance value (3.48 kOhms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are grouped into two categories:

Direct Substitutes maintain full automotive AEC-Q200 certification and identical dimensional specifications. These parts are MCR03ERTF3481 (Rohm Semiconductor), CRCW06033K48FKEA (Vishay Dale), ERJ-3EKF3481V (Panasonic Electronic Components), RMCF0603FG3K48 (Stackpole Electronics Inc), and RMCF0603FT3K48 (Stackpole Electronics Inc).

Similar Substitutes meet all core electrical parameters and package requirements but differ in specific features or certifications. These parts are CR0603-FX-3481ELF (Bourns Inc.) and RC0603FR-073K48L (YAGEO), which feature moisture-resistant composition instead of automotive AEC-Q200 rating.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory
MCR03EZPFX3481	Rohm Semiconductor	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Discontinued	811 Pcs
MCR03ERTF3481	Rohm Semiconductor	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Discontinued	984 Pcs
CRCW06033K48FKEA	Vishay Dale	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	16638 Pcs
ERJ-3EKF3481V	Panasonic Electronic Components	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	233210 Pcs
RMCF0603FG3K48	Stackpole Electronics Inc	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	937 Pcs
RMCF0603FT3K48	Stackpole Electronics Inc	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Yes	Active	184826 Pcs
CR0603-FX-3481ELF	Bourns Inc.	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	57048 Pcs
RC0603FR-073K48L	YAGEO	3.48 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	No	Active	414188 Pcs

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 compliance, select from active parts with this certification: CRCW06033K48FKEA (Vishay Dale), ERJ-3EKF3481V (Panasonic Electronic Components), RMCF0603FG3K48 (Stackpole Electronics Inc), or RMCF0603FT3K48 (Stackpole Electronics Inc). All four maintain full compliance with the original MCR03EZPFX3481 specifications and are currently in active production status.

For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-3481ELF (Bourns Inc.) and RC0603FR-073K48L (YAGEO) are viable alternatives with moisture-resistant composition and significantly higher inventory availability.

Parts with active production status are preferred over discontinued alternatives for long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF3481 replace MCR03EZPFX3481 directly? A: MCR03ERTF3481 matches all core electrical parameters (3.48 kΩ, ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C). However, MCR03ERTF3481 does not carry AEC-Q200 certification while the original part does. Use only if automotive qualification is not required for your application.

Q: What is the difference between RMCF0603FG3K48 and RMCF0603FT3K48? A: Both parts are manufactured by Stackpole Electronics Inc with identical electrical specifications and AEC-Q200 certification. The primary difference is packaging: RMCF0603FG3K48 is supplied in Cut Tape (CT), while RMCF0603FT3K48 is supplied in Tape & Reel (TR). RMCF0603FT3K48 has significantly higher inventory (184826 Pcs vs 937 Pcs).

Q: Are CR0603-FX-3481ELF and RC0603FR-073K48L suitable for automotive applications? A: Both parts meet the core electrical and thermal specifications of the original part but lack AEC-Q200 automotive certification. They feature moisture-resistant composition instead. Use only in non-automotive applications or where automotive qualification is not mandated.

Q: Do all substitute parts use the same 0603 package? A: Yes. All listed substitutes use the 0603 (1608 Metric) package with identical termination count (2). Minor dimensional variations exist within standard tolerances but do not affect PCB footprint compatibility.

Q: Which substitute offers the best inventory availability? A: RC0603FR-073K48L (YAGEO) has the highest inventory at 414188 Pcs. For AEC-Q200 compliant parts, ERJ-3EKF3481V (Panasonic Electronic Components) offers the best availability at 233210 Pcs.

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