MCR03EZPFX1504 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1504 is a 1.5 MOhm ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W power dissipation. Manufactured by Rohm Semiconductor, this component meets automotive AEC-Q200 qualification standards and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs.

Key Parameters

Parameter	Value
Resistance	1.5 MOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C to 155°C
Temperature Coefficient	±100ppm/°C (±200ppm/°C for RMCF0603FT1M50)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (1.5 MOhms), tolerance (±1%), power rating (0.1W), package type (0603), composition (thick film), and operating temperature range (-55°C to 155°C). All listed substitutes meet these core electrical and mechanical requirements.

Substitutes are categorized as follows:

Direct Substitutes (Rohm Semiconductor): MCR03ERTF1504 maintains identical electrical specifications and differs only in packaging format (Cut Tape & Digi-Reel versus surface mount packaging).

Upgrade Substitute (Rohm Semiconductor): KTR03EZPF1504 provides equivalent electrical performance with active product status and includes high voltage capability certification alongside AEC-Q200 automotive qualification.

Direct Substitutes (Alternative Manufacturers): CRCW06031M50FKEA (Vishay Dale) and RMCF0603FT1M50 (Stackpole Electronics Inc) deliver identical electrical specifications with active product status. RMCF0603FT1M50 specifies ±200ppm/°C temperature coefficient versus ±100ppm/°C for other variants.

Similar Substitute (YAGEO): RC0603FR-071M5L meets all core electrical and mechanical parameters with moisture-resistant feature designation and active product status. This part lacks explicit AEC-Q200 automotive certification.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Package	Temp Coeff	Operating Temp	AEC-Q200	Product Status	Inventory
MCR03EZPFX1504	Rohm Semiconductor	1.5 MOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Discontinued	947 Pcs
MCR03ERTF1504	Rohm Semiconductor	1.5 MOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Discontinued	2512 Pcs
KTR03EZPF1504	Rohm Semiconductor	1.5 MOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	13864 Pcs
CRCW06031M50FKEA	Vishay Dale	1.5 MOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	Yes	Active	31856 Pcs
RMCF0603FT1M50	Stackpole Electronics Inc	1.5 MOhms	±1%	0.1W	0603	±200ppm/°C	-55°C to 155°C	Yes	Active	39311 Pcs
RC0603FR-071M5L	YAGEO	1.5 MOhms	±1%	0.1W	0603	±100ppm/°C	-55°C to 155°C	No	Active	243323 Pcs

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 compliance, KTR03EZPF1504 (Rohm Semiconductor) or CRCW06031M50FKEA (Vishay Dale) are primary selections. Both maintain active product status, full AEC-Q200 certification, and adequate inventory levels.

RMCF0603FT1M50 (Stackpole Electronics Inc) provides equivalent performance with AEC-Q200 qualification and the highest inventory availability. The ±200ppm/°C temperature coefficient represents a measurable difference from the original ±100ppm/°C specification and must be evaluated against circuit tolerance requirements.

RC0603FR-071M5L (YAGEO) meets all core electrical and mechanical parameters with exceptional inventory availability. This part lacks explicit AEC-Q200 automotive certification and includes moisture-resistant feature designation. Selection requires confirmation that automotive qualification is not a mandatory design requirement.

MCR03ERTF1504 (Rohm Semiconductor) maintains identical specifications to the original part but carries discontinued status, limiting long-term supply viability.

Frequently Asked Questions (FAQ)

Q: Can MCR03ERTF1504 directly replace MCR03EZPFX1504?

A: Yes. Both parts share identical electrical specifications (1.5 MOhms ±1%, 0.1W, ±100ppm/°C) and 0603 package dimensions. The difference is packaging format (Cut Tape & Digi-Reel versus surface mount). Both are discontinued at DiGi Electronics.

Q: Is KTR03EZPF1504 a suitable upgrade?

A: Yes. KTR03EZPF1504 maintains all electrical parameters and package compatibility while offering active product status and AEC-Q200 automotive certification. Higher inventory availability supports long-term supply continuity.

Q: What is the significance of the ±200ppm/°C temperature coefficient in RMCF0603FT1M50?

A: RMCF0603FT1M50 specifies ±200ppm/°C versus ±100ppm/°C for other substitutes. This represents a 2x increase in temperature-dependent resistance drift. Circuits with tight tolerance requirements across the -55°C to 155°C operating range must evaluate whether this specification change affects performance.

Q: Why does RC0603FR-071M5L lack AEC-Q200 certification?

A: RC0603FR-071M5L is manufactured by YAGEO and carries moisture-resistant feature designation rather than automotive qualification. Selection requires confirmation that AEC-Q200 compliance is not a mandatory design or procurement requirement.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitutes meet ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity requirements, matching the original part specifications.

Q: Can substitutes be used interchangeably in PCB assembly?

A: Yes. All substitutes maintain 0603 (1608 Metric) package dimensions and 2-termination configuration, enabling direct PCB footprint compatibility without layout modifications.

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