MCR03EZPFX1653 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1653 is a 165 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	165 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 to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX1653 is determined by strict equivalence across the following parameters: resistance value (165 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, REACH Unaffected).

Substitute parts are grouped into two categories:

Direct Substitutes (AEC-Q200 Rated): CRCW0603165KFKEA (Vishay Dale), ERJ-3EKF1653V (Panasonic Electronic Components), and RMCF0603FT165K (Stackpole Electronics Inc). These parts maintain full automotive AEC-Q200 qualification and are electrically and mechanically identical to the original part.

Similar Substitutes (Moisture Resistant, Non-AEC-Q200): CR0603-FX-1653ELF (Bourns Inc.) and RC0603FR-07165KL (YAGEO). These parts match all electrical specifications and package requirements but feature moisture-resistant construction instead of automotive AEC-Q200 rating. Selection of these alternatives requires application-level assessment of automotive qualification necessity.

Parameter Comparison

Parameter	MCR03EZPFX1653 (Rohm)	CRCW0603165KFKEA (Vishay Dale)	ERJ-3EKF1653V (Panasonic)	RMCF0603FT165K (Stackpole)	CR0603-FX-1653ELF (Bourns)	RC0603FR-07165KL (YAGEO)
Resistance	165 kOhms	165 kOhms	165 kOhms	165 kOhms	165 kOhms	165 kOhms
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.1W	0.1W	0.1W	0.1W	0.1W	0.1W
Package	0603	0603	0603	0603	0603	0603
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Rating	AEC-Q200	AEC-Q200	AEC-Q200	AEC-Q200	Moisture Resistant	Moisture Resistant
Product Status	Discontinued	Active	Active	Active	Active	Active

Engineering Selection Recommendations

For applications requiring automotive AEC-Q200 qualification, select from the direct substitutes: CRCW0603165KFKEA, ERJ-3EKF1653V, or RMCF0603FT165K. All three maintain full compliance with automotive standards and are currently in active production status with substantial inventory availability.

For non-automotive applications or where moisture-resistant construction is preferred over automotive qualification, CR0603-FX-1653ELF and RC0603FR-07165KL are suitable alternatives. Both are active products with high inventory levels.

All substitute parts are RoHS3 compliant and REACH unaffected, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-1653ELF or RC0603FR-07165KL as direct replacements for MCR03EZPFX1653 in automotive applications?

A: CR0603-FX-1653ELF and RC0603FR-07165KL are electrically and mechanically equivalent but lack AEC-Q200 automotive qualification. Use these only if your application does not require automotive certification. For automotive designs, use CRCW0603165KFKEA, ERJ-3EKF1653V, or RMCF0603FT165K.

Q: Are all substitute parts available in the same packaging options?

A: CRCW0603165KFKEA, ERJ-3EKF1653V, and RMCF0603FT165K are supplied in Tape & Reel (TR) packaging. RC0603FR-07165KL is available in Cut Tape (CT) & Digi-Reel® packaging. Verify packaging requirements for your assembly process before selection.

Q: Do the substitute parts have identical physical dimensions?

A: All parts use the 0603 (1608 Metric) package. Minor dimensional variations exist: CRCW0603165KFKEA and RMCF0603FT165K measure 0.061" L × 0.031" W, while MCR03EZPFX1653, ERJ-3EKF1653V, CR0603-FX-1653ELF, and RC0603FR-07165KL measure 0.063" L × 0.031" W. Height differences are negligible (0.020" to 0.022" maximum seated height). These variations are within standard 0603 package tolerances and do not affect PCB layout compatibility.

Q: What is the difference between AEC-Q200 rated and moisture-resistant resistors?

A: AEC-Q200 rated parts (CRCW0603165KFKEA, ERJ-3EKF1653V, RMCF0603FT165K) meet automotive qualification standards for reliability and performance in vehicle environments. Moisture-resistant parts (CR0603-FX-1653ELF, RC0603FR-07165KL) emphasize environmental protection but lack automotive certification. Selection depends on application requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the original MCR03EZPFX1653 regulatory status.

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