MCR03ERTF7321 Equivalent & Substitute Parts

Part Overview

The MCR03ERTF7321 is a 7.32 kOhms ±1% thick film chip resistor in 0603 (1608 Metric) package rated for 0.1W (1/10W) power dissipation. Manufactured by Rohm Semiconductor, this component is discontinued at DiGi Electronics. Identifying qualified substitute parts is essential for design continuity, procurement flexibility, and supply chain resilience in applications requiring this specific resistance value and electrical characteristics.

Key Parameters

Parameter	Value
Resistance	7.32 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the MCR03ERTF7321 are qualified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Resistance value: 7.32 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 range: -55°C ~ 155°C (exact match required)
RoHS3 compliance and MSL 1 rating (environmental compliance match)

All seven substitute parts listed meet these criteria. Variations in packaging format (Tape & Reel vs. Cut Tape), manufacturer certifications (AEC-Q200 for automotive applications), and moisture resistance features represent secondary differentiators that do not affect core electrical substitutability.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Product Status	RoHS3	MSL
MCR03ERTF7321	Rohm Semiconductor	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Discontinued	Yes	1
AC0603FR-077K32L	YAGEO	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CR0603-FX-7321ELF	Bourns Inc.	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CRCW06037K32FKEA	Vishay Dale	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
ERJ-3EKF7321V	Panasonic Electronic Components	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
RC0603FR-077K32L	YAGEO	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
RMCF0603FG7K32	Stackpole Electronics Inc	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
RMCF0603FT7K32	Stackpole Electronics Inc	7.32 kΩ	±1%	0.1	0603	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1

Engineering Selection Recommendations

All seven substitute parts are electrically and mechanically equivalent to the MCR03ERTF7321 and meet ROHS3 compliance requirements with MSL 1 rating. Selection among these alternatives should be based on:

Product Availability & Supply Chain: All substitute parts carry Active product status with current inventory availability, providing immediate procurement options compared to the discontinued MCR03ERTF7321.

Automotive Applications: Four substitute parts (AC0603FR-077K32L, CRCW06037K32FKEA, ERJ-3EKF7321V, RMCF0603FG7K32, RMCF0603FT7K32) carry AEC-Q200 automotive qualification. These are preferred for automotive or mission-critical applications requiring enhanced reliability documentation.

Packaging Format: Tape & Reel (TR) packaging is available from YAGEO (AC0603FR-077K32L), Bourns (CR0603-FX-7321ELF), Panasonic (ERJ-3EKF7321V), and Stackpole (RMCF0603FT7K32). Cut Tape (CT) or Digi-Reel packaging is available from YAGEO (RC0603FR-077K32L) and Stackpole (RMCF0603FG7K32). Packaging selection depends on assembly process requirements and order quantities.

Moisture Resistance Features: YAGEO (AC0603FR-077K32L, RC0603FR-077K32L) and Bourns (CR0603-FX-7321ELF) parts explicitly specify moisture resistance, beneficial for high-humidity or harsh environment applications.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for MCR03ERTF7321?

A: Yes. All seven substitute parts meet the identical electrical specifications (7.32 kΩ ±1%, 0.1W, ±100ppm/°C, -55°C ~ 155°C) and package requirements (0603 thick film). They are electrically and mechanically interchangeable.

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

A: Tape & Reel (TR) packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly equipment. Cut Tape (CT) and Digi-Reel packaging are supplied in shorter tape segments or alternative formats. Selection depends on your assembly process and order volume requirements.

Q: Why do some parts have AEC-Q200 certification and others do not?

A: AEC-Q200 is an automotive industry qualification standard. Parts with this certification (AC0603FR-077K32L, CRCW06037K32FKEA, ERJ-3EKF7321V, RMCF0603FG7K32, RMCF0603FT7K32) have undergone additional reliability testing and documentation required for automotive applications. Non-automotive qualified parts are suitable for general industrial and consumer applications.

Q: Are all these parts RoHS3 compliant?

A: Yes. All substitute parts and the original MCR03ERTF7321 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, meeting current environmental and regulatory requirements.

Q: What is the significance of ±100ppm/°C temperature coefficient?

A: Temperature coefficient specifies how the resistance value changes with temperature. ±100ppm/°C means the resistance can drift up to 0.01% per degree Celsius across the -55°C ~ 155°C operating range. All listed parts share this specification, ensuring consistent performance across temperature extremes.

Q: Which substitute should I choose for high-volume production?

A: For high-volume automated assembly, select parts available in Tape & Reel format with the highest inventory levels. ERJ-3EKF7321V (Panasonic, 116,451 pcs) and RC0603FR-077K32L (YAGEO, 170,234 pcs) offer the largest available stock. For automotive applications, RMCF0603FT7K32 (Stackpole, 88,166 pcs) combines AEC-Q200 qualification with TR packaging and substantial inventory.

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