MCR03EZPFX1910 Equivalent & Substitute Parts

Part Overview

The MCR03EZPFX1910 is a 191 Ohms ±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	191 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
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR03EZPFX1910 is determined by strict equivalence across the following parameters:

Resistance value: 191 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
Terminations: 2
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed meet these electrical and mechanical specifications. Differences in physical dimensions (length and height) within the 0603 package tolerance, packaging format (Tape & Reel vs. Cut Tape), and optional automotive certification (AEC-Q200) do not affect functional equivalence.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Packaging	Inventory (Pcs)
MCR03EZPFX1910	Rohm Semiconductor	191 Ω	±1%	0.1	0603	±100	-55 to 155	Discontinued	-	1183
CRCW0603191RFKEA	Vishay Dale	191 Ω	±1%	0.1	0603	±100	-55 to 155	Active	Tape & Reel	43641
ERJ-3EKF1910V	Panasonic Electronic Components	191 Ω	±1%	0.1	0603	±100	-55 to 155	Active	Tape & Reel	64512
RMCF0603FT191R	Stackpole Electronics Inc	191 Ω	±1%	0.1	0603	±100	-55 to 155	Active	Tape & Reel	81103
CR0603-FX-1910ELF	Bourns Inc.	191 Ω	±1%	0.1	0603	±100	-55 to 155	Active	Tape & Reel	19812
RC0603FR-07191RL	YAGEO	191 Ω	±1%	0.1	0603	±100	-55 to 155	Active	Tape & Reel	127114
RC1608F1910CS	Samsung Electro-Mechanics	191 Ω	±1%	0.1	0603	±100	-55 to 155	Active	Cut Tape	1036

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the MCR03EZPFX1910 based on electrical specifications and package compatibility. Selection should be based on the following factors:

Product Availability: RMCF0603FT191R (Stackpole) and RC0603FR-07191RL (YAGEO) offer the highest inventory levels, ensuring supply continuity. CRCW0603191RFKEA (Vishay Dale) and ERJ-3EKF1910V (Panasonic) provide substantial stock with active product status.

Packaging Format: Most substitutes are supplied in Tape & Reel format suitable for automated assembly. RC1608F1910CS (Samsung) is available in Cut Tape format for lower-volume or manual assembly applications.

Compliance Certifications: CRCW0603191RFKEA, ERJ-3EKF1910V, and RMCF0603FT191R maintain AEC-Q200 automotive certification matching the original part. CR0603-FX-1910ELF (Bourns), RC0603FR-07191RL (YAGEO), and RC1608F1910CS (Samsung) are rated for moisture-resistant applications without explicit AEC-Q200 designation but meet all electrical and environmental specifications.

RoHS Compliance: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the MCR03EZPFX1910?

A: Yes. All listed parts meet the same electrical specifications (191 Ω ±1%, 0.1W), operate across the same temperature range (-55°C to 155°C), and are packaged in the 0603 (1608 Metric) form factor. Physical dimension variations within the 0603 package tolerance do not affect circuit performance or PCB assembly compatibility.

Q: What is the difference between AEC-Q200 rated and moisture-resistant variants?

A: AEC-Q200 certification (CRCW0603191RFKEA, ERJ-3EKF1910V, RMCF0603FT191R) indicates automotive-grade qualification with enhanced reliability testing. Moisture-resistant variants (CR0603-FX-1910ELF, RC0603FR-07191RL, RC1608F1910CS) provide environmental protection without automotive certification. Both meet the operating temperature range and electrical specifications required for this application.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Tape & Reel format is optimized for high-volume automated assembly, while Cut Tape is suitable for lower-volume or manual assembly. Electrical characteristics remain identical.

Q: Are there any dimensional differences I should consider?

A: All parts conform to the 0603 (1608 Metric) package standard. Minor variations in length (0.061" to 0.063") and height (0.020" to 0.022") fall within package tolerance and do not affect PCB footprint compatibility or assembly.

Q: Which substitute offers the best supply availability?

A: RC0603FR-07191RL (YAGEO) provides the highest inventory at 127,114 pieces. RMCF0603FT191R (Stackpole) offers 81,103 pieces. Both are suitable for high-volume production requirements.

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