MCR03EZPFX1000 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1000 is a 100 Ohm ±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	100 Ohms
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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX1000 is determined by strict equivalence across the following parameters: resistance value (100 Ohms), 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 automotive AEC-Q200 compliance. Parts are grouped into three categories based on their relationship to the original specification:

Direct Equivalents maintain all electrical and mechanical parameters identical to the MCR03EZPFX1000. These parts are sourced from different manufacturers but meet the same performance criteria and certifications.

Upgrade Substitutes exceed the original specification in one or more parameters while maintaining full backward compatibility. These parts can replace the original without functional compromise and may offer improved performance characteristics.

Similar Alternatives share the core electrical specifications but lack specific automotive certifications or feature sets. These parts are suitable only when automotive AEC-Q200 compliance is not a design requirement.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Package	AEC-Q200	Product Status	Packaging Type
MCR03EZPFX1000	Rohm Semiconductor	100 Ω	±1%	0.1	±100	0603	Yes	Discontinued	Bulk
KTR03EZPF1000	Rohm Semiconductor	100 Ω	±1%	0.1	±100	0603	Yes	Active	Tape & Reel
CRCW0603100RFKEA	Vishay Dale	100 Ω	±1%	0.1	±100	0603	Yes	Active	Cut Tape & Digi-Reel
CRCW0603100RFKEB	Vishay Dale	100 Ω	±1%	0.1	±100	0603	Yes	Discontinued	Tape & Reel
CRCW0603100RFKEC	Vishay Dale	100 Ω	±1%	0.1	±100	0603	Yes	Active	Tape & Reel
ERJ-3EKF1000V	Panasonic Electronic Components	100 Ω	±1%	0.1	±100	0603	Yes	Active	Cut Tape & Digi-Reel
RCG0603100RFKEA	Vishay Dale	100 Ω	±1%	0.1	±100	0603	No	Active	Tape & Reel
RMCF0603FG100R	Stackpole Electronics Inc	100 Ω	±1%	0.1	±100	0603	Yes	Active	Cut Tape & Digi-Reel
RMCF0603FT100R	Stackpole Electronics Inc	100 Ω	±1%	0.1	±100	0603	Yes	Active	Cut Tape & Digi-Reel
CRCW0603100RDHEAP	Vishay Dale	100 Ω	±0.5%	0.1	±50	0603	Yes	Active	Tape & Reel
CR0603-FX-1000ELF	Bourns Inc.	100 Ω	±1%	0.1	±100	0603	No	Active	Cut Tape & Digi-Reel

Engineering Selection Recommendations

For applications requiring strict AEC-Q200 automotive compliance, select from the following active parts: KTR03EZPF1000 (Rohm Semiconductor), CRCW0603100RFKEA or CRCW0603100RFKEC (Vishay Dale), ERJ-3EKF1000V (Panasonic Electronic Components), RMCF0603FG100R or RMCF0603FT100R (Stackpole Electronics Inc). All maintain identical electrical specifications to the original MCR03EZPFX1000 and carry current production status.

The CRCW0603100RDHEAP represents an upgrade option with tighter tolerance (±0.5% versus ±1%) and lower temperature coefficient (±50ppm/°C versus ±100ppm/°C), providing enhanced stability while maintaining AEC-Q200 certification and 0603 package compatibility.

For non-automotive applications where AEC-Q200 certification is not required, RCG0603100RFKEA and CR0603-FX-1000ELF are available alternatives with identical core electrical parameters.

Packaging format selection depends on assembly requirements: Tape & Reel packaging suits high-volume automated assembly, while Cut Tape & Digi-Reel options accommodate lower-volume or mixed-component orders.

Frequently Asked Questions (FAQ)

Q: Can I use CRCW0603100RFKEC as a direct replacement for MCR03EZPFX1000?

A: Yes. Both parts share identical electrical specifications (100 Ohms ±1%, 0.1W, ±100ppm/°C) and package format (0603), with AEC-Q200 automotive certification. The primary difference is packaging format (Tape & Reel versus bulk) and manufacturer. Electrical performance and mechanical fit are equivalent.

Q: What is the difference between the direct equivalents and the upgrade substitute CRCW0603100RDHEAP?

A: CRCW0603100RDHEAP offers tighter tolerance (±0.5% versus ±1%) and lower temperature coefficient (±50ppm/°C versus ±100ppm/°C). It maintains the same 100 Ohm resistance, 0.1W power rating, 0603 package, and AEC-Q200 certification. The upgrade provides improved stability across temperature variations and tighter resistance accuracy.

Q: Why is RCG0603100RFKEA listed as a similar alternative rather than a direct equivalent?

A: RCG0603100RFKEA lacks AEC-Q200 automotive certification, which is a key specification of the original MCR03EZPFX1000. All other electrical and mechanical parameters are identical. Use this part only in applications where automotive compliance is not required.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel, Cut Tape & Digi-Reel, and bulk packaging formats do not affect electrical performance. Selection depends on assembly process requirements and order quantities. Tape & Reel suits automated high-volume production, while Cut Tape & Digi-Reel accommodates smaller orders.

Q: Are all listed substitutes suitable for the full -55°C to 155°C operating temperature range?

A: Yes. All listed parts maintain the -55°C to 155°C operating temperature range. Temperature coefficient differences (±100ppm/°C for standard parts, ±50ppm/°C for CRCW0603100RDHEAP) affect resistance stability within this range but do not restrict the operating window.

Q: What is the significance of ROHS3 compliance for all listed parts?

A: ROHS3 compliance indicates all parts meet Restriction of Hazardous Substances regulations, confirming absence of lead, cadmium, mercury, and other restricted materials. This is a standard requirement for modern electronic components and does not differentiate between substitutes.

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