MCR03EZPFX6203 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX6203 is a 620 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, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	620 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MCR03EZPFX6203 is determined by strict equivalence across the following critical parameters:

Resistance Value: 620 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.1W / 1/10W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature: -55°C ~ 155°C (exact match required)
RoHS Compliance: ROHS3 Compliant (exact match required)
Moisture Sensitivity: MSL 1 (exact match required)

All identified substitute parts meet these criteria. Substitutes are categorized as follows:

Upgrade Substitute: KTR03EZPF6203 (Rohm Semiconductor) — same manufacturer, active product status, includes high voltage feature enhancement.

Direct Substitutes: CRCW0603620KFKEA (Vishay Dale), ERJ-3EKF6203V (Panasonic Electronic Components), RMCF0603FT620K (Stackpole Electronics Inc) — functionally equivalent, all parameters match, active product status.

Similar Substitutes: CR0603-FX-6203ELF (Bourns Inc.), RC0603FR-07620KL (YAGEO) — functionally equivalent with moisture-resistant feature designation, all critical parameters match, active product status.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS3	MSL	Product Status
MCR03EZPFX6203	Rohm Semiconductor	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	Yes	Yes	1	Discontinued
KTR03EZPF6203	Rohm Semiconductor	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	Yes	Yes	1	Active
CRCW0603620KFKEA	Vishay Dale	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	Yes	Yes	1	Active
ERJ-3EKF6203V	Panasonic Electronic Components	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	Yes	Yes	1	Active
RMCF0603FT620K	Stackpole Electronics Inc	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	Yes	Yes	1	Active
CR0603-FX-6203ELF	Bourns Inc.	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	No	Yes	1	Active
RC0603FR-07620KL	YAGEO	620 kΩ	±1%	0.1	0603	±100ppm/°C	-55~155°C	No	Yes	1	Active

Engineering Selection Recommendations

Primary Recommendation: KTR03EZPF6203 (Rohm Semiconductor) — Upgrade substitute from the original manufacturer with active product status, full AEC-Q200 automotive compliance, ROHS3 certification, and high voltage feature enhancement. Highest supply availability (7218 pcs).

Secondary Recommendations: CRCW0603620KFKEA (Vishay Dale), ERJ-3EKF6203V (Panasonic Electronic Components), and RMCF0603FT620K (Stackpole Electronics Inc) — All direct substitutes with complete parameter equivalence, active product status, AEC-Q200 compliance, and ROHS3 certification. Excellent supply availability across all three options.

Alternative Options: CR0603-FX-6203ELF (Bourns Inc.) and RC0603FR-07620KL (YAGEO) — Similar substitutes with all critical electrical and mechanical parameters matching. Both lack explicit AEC-Q200 designation but include moisture-resistant features and maintain full ROHS3 compliance. Suitable for non-automotive applications or where moisture resistance is prioritized.

Selection should prioritize active product status and supply chain availability. For automotive applications requiring AEC-Q200 compliance, restrict selection to KTR03EZPF6203, CRCW0603620KFKEA, ERJ-3EKF6203V, or RMCF0603FT620K.

Frequently Asked Questions (FAQ)

Q: Can I use CR0603-FX-6203ELF or RC0603FR-07620KL as direct replacements in automotive circuits?

A: These parts match all critical electrical and mechanical parameters (620 kΩ, ±1%, 0.1W, 0603 package, ±100ppm/°C, -55°C to 155°C, MSL 1, ROHS3). However, they lack explicit AEC-Q200 automotive certification. Use only if your application does not mandate AEC-Q200 compliance.

Q: What is the difference between the MCR03EZPFX6203 and KTR03EZPF6203?

A: Both are Rohm Semiconductor 620 kΩ ±1% 0.1W 0603 resistors with identical electrical specifications and AEC-Q200 compliance. The primary difference is product status: MCR03EZPFX6203 is discontinued, while KTR03EZPF6203 is active. KTR03EZPF6203 includes high voltage feature designation and superior supply availability.

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

A: The main part (MCR03EZPFX6203) uses standard packaging. All substitute parts use 0603 (1608 Metric) package with identical footprint dimensions. Packaging format varies by supplier: KTR03EZPF6203 is Tape & Reel (TR); CRCW0603620KFKEA, ERJ-3EKF6203V, RMCF0603FT620K, CR0603-FX-6203ELF, and RC0603FR-07620KL are all available in Tape & Reel (TR) or Cut Tape formats.

Q: Do all substitutes meet RoHS compliance requirements?

A: All identified substitute parts are ROHS3 compliant. All maintain Moisture Sensitivity Level 1 (Unlimited) rating.

Q: Which substitute offers the best supply chain availability?

A: RC0603FR-07620KL (YAGEO) has the highest inventory at 211,522 pcs. RMCF0603FT620K (Stackpole) follows with 103,111 pcs. All active substitutes maintain substantial stock levels suitable for production requirements.

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