MCR03EZPFX9531 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX9531 is a 9.53 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	9.53 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX9531 is determined by strict equivalence across the following parameters: resistance value (9.53 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 electrical and mechanical specifications.

The substitute parts are categorized as follows:

Direct Equivalents (Automotive AEC-Q200 rated):

CRCW06039K53FKEA (Vishay Dale)
ERJ-3EKF9531V (Panasonic Electronic Components)
RMCF0603FT9K53 (Stackpole Electronics Inc)

Similar Equivalents (Moisture Resistant, non-automotive rated):

CR0603-FX-9531ELF (Bourns Inc.)
RC0603FR-079K53L (YAGEO)

All parts share identical electrical specifications and 0603 package dimensions. Direct equivalents maintain AEC-Q200 automotive certification. Similar equivalents provide functional equivalence with moisture-resistant construction but without automotive qualification.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Status	Inventory
MCR03EZPFX9531	Rohm Semiconductor	9.53 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	671 Pcs
CRCW06039K53FKEA	Vishay Dale	9.53 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	59,331 Pcs
ERJ-3EKF9531V	Panasonic Electronic Components	9.53 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	49,328 Pcs
RMCF0603FT9K53	Stackpole Electronics Inc	9.53 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	162,176 Pcs
CR0603-FX-9531ELF	Bourns Inc.	9.53 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	68,444 Pcs
RC0603FR-079K53L	YAGEO	9.53 kΩ	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	371,768 Pcs

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance, select from the direct equivalents: CRCW06039K53FKEA, ERJ-3EKF9531V, or RMCF0603FT9K53. All three maintain identical electrical specifications and automotive qualification. RMCF0603FT9K53 offers the highest inventory availability at 162,176 pieces.

For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-9531ELF and RC0603FR-079K53L are functionally equivalent. RC0603FR-079K53L provides the largest inventory stock at 371,768 pieces.

All substitute parts are ROHS3 compliant, carry MSL rating of 1 (Unlimited), and are REACH unaffected, matching the original part's compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use a non-AEC-Q200 rated substitute in an automotive application? A: No. If your application requires AEC-Q200 certification, use only CRCW06039K53FKEA, ERJ-3EKF9531V, or RMCF0603FT9K53. The CR0603-FX-9531ELF and RC0603FR-079K53L lack automotive qualification.

Q: Are all substitute parts physically compatible with the original MCR03EZPFX9531? A: Yes. All substitute parts use the 0603 (1608 Metric) package with identical electrical specifications and operating temperature range. Physical dimensions are equivalent across all parts listed.

Q: What is the difference between direct equivalents and similar equivalents? A: Direct equivalents (CRCW06039K53FKEA, ERJ-3EKF9531V, RMCF0603FT9K53) carry AEC-Q200 automotive certification matching the original part. Similar equivalents (CR0603-FX-9531ELF, RC0603FR-079K53L) provide functional equivalence with moisture-resistant construction but without automotive qualification.

Q: Does tolerance or temperature coefficient differ among substitutes? A: No. All substitute parts maintain ±1% tolerance and ±100ppm/°C temperature coefficient, identical to the MCR03EZPFX9531.

Q: Which substitute has the best availability? A: RC0603FR-079K53L (YAGEO) offers the highest inventory at 371,768 pieces. For AEC-Q200 applications, RMCF0603FT9K53 (Stackpole Electronics Inc) provides the best availability at 162,176 pieces.

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