MCR03EZPJ621 Equivalent & Substitute Parts

Part Overview

The MCR03EZPJ621 is a 620 Ohms ±5% 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	620 Ohms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°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 for the MCR03EZPJ621 is determined by strict equivalence across the following parameters: resistance value (620 Ohms), tolerance (±5%), power rating (0.1W), package type (0603), composition (thick film), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, REACH Unaffected).

Direct substitutes maintain all electrical and mechanical specifications identical to the original part. These parts are sourced from different manufacturers but meet the same performance criteria and are suitable for direct replacement without circuit redesign.

An upgrade substitute is identified where tolerance is improved (±1% versus ±5%) while maintaining all other critical parameters, offering enhanced precision for applications requiring tighter resistance tolerances.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Temp Coeff	Operating Temp	AEC-Q200	Package	Status
MCR03EZPJ621	Rohm Semiconductor	620 Ω	±5%	0.1W	±200ppm/°C	-55°C to 155°C	Yes	0603	Discontinued
CRCW0603620RJNEA	Vishay Dale	620 Ω	±5%	0.1W	±200ppm/°C	-55°C to 155°C	Yes	0603	Active
ERJ-3GEYJ621V	Panasonic Electronic Components	620 Ω	±5%	0.1W	±200ppm/°C	-55°C to 155°C	Yes	0603	Active
RC0603JR-07620RL	YAGEO	620 Ω	±5%	0.1W	±100ppm/°C	-55°C to 155°C	No	0603	Active
RMCF0603JG620R	Stackpole Electronics Inc	620 Ω	±5%	0.1W	±200ppm/°C	-55°C to 155°C	Yes	0603	Active
RMCF0603JT620R	Stackpole Electronics Inc	620 Ω	±5%	0.1W	±200ppm/°C	-55°C to 155°C	Yes	0603	Active
CRCW0603620RFKEA	Vishay Dale	620 Ω	±1%	0.1W	±100ppm/°C	-55°C to 155°C	Yes	0603	Active
CR0603-JW-621ELF	Bourns Inc.	620 Ω	±5%	0.1W	±200ppm/°C	-55°C to 155°C	No	0603	Active

Engineering Selection Recommendations

For direct replacement of the discontinued MCR03EZPJ621 in automotive applications, select from CRCW0603620RJNEA, ERJ-3GEYJ621V, RMCF0603JG620R, or RMCF0603JT620R. These parts maintain full electrical and mechanical equivalence, including AEC-Q200 automotive qualification and ±200ppm/°C temperature coefficient.

CRCW0603620RFKEA serves as an upgrade option where improved tolerance (±1%) and reduced temperature coefficient (±100ppm/°C) are required, while maintaining AEC-Q200 compliance and identical package specifications.

RC0603JR-07620RL and CR0603-JW-621ELF are functionally compatible alternatives with identical resistance, tolerance, power rating, and package, though they lack AEC-Q200 automotive certification. These are suitable for non-automotive applications or where automotive qualification is not a design requirement.

Frequently Asked Questions (FAQ)

Q: Can I use RC0603JR-07620RL or CR0603-JW-621ELF as direct replacements in automotive circuits?

A: These parts are electrically and mechanically compatible but lack AEC-Q200 automotive qualification. Use only if your application does not require automotive-grade components or if design specifications explicitly permit non-AEC-Q200 alternatives.

Q: What is the difference between RMCF0603JG620R and RMCF0603JT620R?

A: Both parts are identical in electrical specifications and AEC-Q200 compliance. The difference lies in packaging designation and internal manufacturing process codes. Both are direct substitutes for MCR03EZPJ621.

Q: Should I use CRCW0603620RFKEA instead of the standard ±5% tolerance parts?

A: CRCW0603620RFKEA offers improved tolerance (±1%) and lower temperature coefficient (±100ppm/°C). Use this upgrade only if your circuit design requires tighter resistance tolerances. For applications designed around ±5% tolerance, standard substitutes are appropriate.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute and upgrade parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the original MCR03EZPJ621.

Q: What is the inventory status of these substitutes?

A: RMCF0603JT620R (181,235 pcs), ERJ-3GEYJ621V (139,082 pcs), and RC0603JR-07620RL (169,605 pcs) have the highest inventory availability. CRCW0603620RJNEA (19,520 pcs) and RMCF0603JG620R (11,082 pcs) have moderate availability.

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