MCR03EZPFX1203 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1203 is a 120 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 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	120 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
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX1203 is determined by strict equivalence across the following parameters: resistance value (120 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, MSL 1).

Substitute parts are categorized as follows:

Upgrade Substitutes maintain all electrical and mechanical specifications while offering improved availability or additional features (high voltage capability). These parts are direct functional replacements with enhanced characteristics.

Direct Substitutes match all core electrical parameters and package specifications. Dimensional variations within acceptable tolerances (height and length/width within ±0.002" to ±0.004") do not affect circuit performance or PCB assembly compatibility.

Similar Substitutes meet all electrical specifications and package requirements but may differ in specific features (moisture resistance, anti-sulfur treatment) or automotive certification status. These parts are functionally equivalent for non-critical applications but require design review for automotive or high-reliability applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	RoHS3	MSL	Product Status
MCR03EZPFX1203	Rohm Semiconductor	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Discontinued
KTR03EZPF1203	Rohm Semiconductor	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Active
CRCW0603120KFKEA	Vishay Dale	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Active
ERJ-3EKF1203V	Panasonic Electronic Components	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Active
RMCF0603FG120K	Stackpole Electronics Inc	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Active
RMCF0603FT120K	Stackpole Electronics Inc	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Active
CR0603-FX-1203ELF	Bourns Inc.	120 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Yes	1	Active
CRG0603F120K	TE Connectivity Passive Product	120 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Yes	1	Active
ERJ-S03F1203V	Panasonic Electronic Components	120 kOhms	±1%	0.1	0603	±100	-55 to 155	Yes	Yes	1	Active
RC0603FR-07120KL	YAGEO	120 kOhms	±1%	0.1	0603	±100	-55 to 155	No	Yes	1	Active

Engineering Selection Recommendations

For automotive applications requiring AEC-Q200 certification, select from the following active parts: KTR03EZPF1203 (Rohm Semiconductor), CRCW0603120KFKEA (Vishay Dale), ERJ-3EKF1203V (Panasonic), RMCF0603FG120K or RMCF0603FT120K (Stackpole Electronics), or ERJ-S03F1203V (Panasonic). All maintain full AEC-Q200 compliance and ROHS3 certification.

For general-purpose applications where automotive certification is not required, CR0603-FX-1203ELF (Bourns), CRG0603F120K (TE Connectivity), and RC0603FR-07120KL (YAGEO) provide equivalent electrical performance with active product status and ROHS3 compliance.

All substitute parts share identical electrical specifications (120 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C operating range) and 0603 package footprint, ensuring direct PCB compatibility. Packaging format (Tape & Reel or Cut Tape) selection depends on assembly process requirements and does not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-1203ELF as a direct replacement for MCR03EZPFX1203 in automotive applications?

A: CR0603-FX-1203ELF is not AEC-Q200 certified. For automotive applications requiring AEC-Q200 compliance, use KTR03EZPF1203, CRCW0603120KFKEA, ERJ-3EKF1203V, RMCF0603FG120K, RMCF0603FT120K, or ERJ-S03F1203V instead.

Q: Are there dimensional differences between substitute parts that affect PCB assembly?

A: All substitute parts use the 0603 (1608 Metric) package. Minor dimensional variations exist within tolerance ranges (length 0.061" to 0.063", width 0.031" to 0.033", height 0.020" to 0.022"). These variations are within standard PCB assembly tolerances and do not affect placement or soldering.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is suitable for automated high-volume assembly. Cut Tape & Digi-Reel packaging is appropriate for lower-volume production or manual assembly. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes, all listed substitute parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Which substitute offers the best availability?

A: RMCF0603FT120K (Stackpole Electronics) has the highest inventory at 261,290 pieces. CRCW0603120KFKEA (Vishay Dale) has 68,328 pieces available. Both are active products with immediate availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message