MCR03EZPFX3300 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX3300 is a 330 Ohms ±1% 0.1W chip resistor in 0603 (1608 Metric) package manufactured by Rohm Semiconductor. This automotive-grade thick film resistor meets AEC-Q200 specifications and operates across -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines that maintain identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	330 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 eligibility is determined by strict equivalence across all critical parameters: resistance value (330 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 compliance certifications (ROHS3, REACH Unaffected, EAR99).

Substitute parts are categorized as follows:

Upgrade/Direct Substitutes maintain all electrical and mechanical specifications with enhanced availability or additional features (high voltage capability). These parts are functionally interchangeable with identical PCB footprints and performance characteristics.

Direct Substitutes provide complete parameter equivalence with active product status and established supply chains. Minor dimensional variations within tolerance do not affect circuit performance or assembly compatibility.

Similar Substitutes meet all core electrical specifications and package requirements but may include additional features (moisture resistance, anti-sulfur treatment) or represent alternative manufacturer implementations of the same functional specification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Product Status	Inventory
MCR03EZPFX3300	Rohm Semiconductor	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Discontinued	723 Pcs
KTR03EZPF3300	Rohm Semiconductor	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active	17524 Pcs
CRCW0603330RFKEA	Vishay Dale	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active	373099 Pcs
CRCW0603330RFKEB	Vishay Dale	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Discontinued	30405 Pcs
ERJ-3EKF3300V	Panasonic Electronic Components	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active	565584 Pcs
RMCF0603FT330R	Stackpole Electronics Inc	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active	915704 Pcs
CR0603-FX-3300ELF	Bourns Inc.	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	No	Active	170239 Pcs
CRG0603F330R	TE Connectivity Passive Product	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	No	Active	937816 Pcs
ERJ-S03F3300V	Panasonic Electronic Components	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	Yes	Active	10716 Pcs
RC0603FR-07330RL	YAGEO	330 Ω	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	No	Active	15150 Pcs

Engineering Selection Recommendations

For applications requiring AEC-Q200 automotive qualification, select from: KTR03EZPF3300 (Rohm Semiconductor), CRCW0603330RFKEA (Vishay Dale), ERJ-3EKF3300V (Panasonic), RMCF0603FT330R (Stackpole), or ERJ-S03F3300V (Panasonic). All maintain full compliance with automotive standards and ROHS3 requirements.

KTR03EZPF3300 provides direct manufacturer continuity from the original MCR03EZPFX3300 with enhanced high-voltage capability and superior inventory availability (17524 units). CRCW0603330RFKEA offers the highest stock level (373099 units) with established supply chain reliability. ERJ-3EKF3300V and RMCF0603FT330R provide alternative qualified sources with substantial inventory depth.

For non-automotive applications where AEC-Q200 certification is not required, CR0603-FX-3300ELF (Bourns), CRG0603F330R (TE Connectivity), and RC0603FR-07330RL (YAGEO) are functionally equivalent alternatives with active product status and high availability.

Frequently Asked Questions (FAQ)

Q: Can KTR03EZPF3300 directly replace MCR03EZPFX3300 on existing PCBs?

A: Yes. Both parts share identical 0603 package dimensions, electrical specifications (330 Ohms ±1%, 0.1W), and operating parameters (-55°C to 155°C). PCB footprints are mechanically and electrically compatible without design modification.

Q: What is the difference between AEC-Q200 qualified and non-qualified 330 Ohm 0603 resistors?

A: AEC-Q200 qualified parts (KTR03EZPF3300, CRCW0603330RFKEA, ERJ-3EKF3300V, RMCF0603FT330R, ERJ-S03F3300V) meet automotive reliability and qualification standards. Non-qualified alternatives (CR0603-FX-3300ELF, CRG0603F330R, RC0603FR-07330RL) meet identical electrical specifications but lack automotive certification. Selection depends on application requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within manufacturing tolerance. MCR03EZPFX3300 and ERJ-3EKF3300V measure 0.063" L × 0.031" W (1.60mm × 0.80mm). CRCW0603330RFKEA measures 0.061" L × 0.033" W (1.55mm × 0.85mm). CRCW0603330RFKEB measures 0.063" L × 0.033" W (1.60mm × 0.85mm). All variations remain within 0603 package specification and do not affect PCB assembly or circuit performance.

Q: Which substitute offers the best supply chain availability?

A: RMCF0603FT330R (Stackpole) provides the highest inventory level at 915704 units, followed by ERJ-3EKF3300V (Panasonic) at 565584 units and CRCW0603330RFKEA (Vishay Dale) at 373099 units.

Q: Can CR0603-FX-3300ELF be used in automotive applications?

A: CR0603-FX-3300ELF lacks AEC-Q200 certification. Use only in non-automotive applications or where automotive qualification is not specified. For automotive designs, select from AEC-Q200 qualified alternatives.

Q: What is the significance of ERJ-S03F3300V anti-sulfur feature?

A: Anti-sulfur treatment provides enhanced resistance to sulfur-containing environments. This feature is functionally equivalent to standard thick film resistors in standard operating conditions but offers additional protection in corrosive industrial or marine environments.

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