MCR18EZPJ821 Equivalent & Substitute Parts

Part Overview

The MCR18EZPJ821 is a 820 Ohms ±5% 0.25W (1/4W) thick film chip resistor in 1206 (3216 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	820 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 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	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the MCR18EZPJ821 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Resistance value: 820 Ohms
Tolerance: ±5% (or tighter tolerance acceptable as upgrade)
Package / Case: 1206 (3216 Metric)
Composition: Thick Film
Operating temperature range: -55°C to 155°C minimum
RoHS3 compliance
MSL 1 rating

Allowable Variations:

Power rating: Equal or higher than 0.25W (upgrades to 0.5W, 0.667W, or 0.75W are acceptable)
Temperature coefficient: ±200ppm/°C or better (±100ppm/°C is acceptable upgrade)
Automotive rating: AEC-Q200 preferred; non-automotive alternatives listed as similar options
Packaging format: Tape & Reel (TR), Cut Tape (CT), or equivalent

Substitutes are grouped into three categories: Upgrade (enhanced specifications), Direct (equivalent specifications), and Similar (non-automotive alternatives).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	AEC-Q200	Product Status
MCR18EZPJ821	Rohm Semiconductor	820 Ω	±5%	0.25	±200	-55 to 155	Yes	Discontinued
ESR18EZPJ821	Rohm Semiconductor	820 Ω	±5%	0.5	±200	-55 to 155	Yes	Active
CRCW1206820RJNEA	Vishay Dale	820 Ω	±5%	0.25	±200	-55 to 155	Yes	Active
ERJ-8GEYJ821V	Panasonic Electronic Components	820 Ω	±5%	0.25	±200	-55 to 155	Yes	Not For New Designs
RMCF1206JT820R	Stackpole Electronics Inc	820 Ω	±5%	0.25	±200	-55 to 155	Yes	Active
CRCW1206820RFKEA	Vishay Dale	820 Ω	±1%	0.25	±100	-55 to 155	Yes	Active
CRCW1206820RJNEAHP	Vishay Dale	820 Ω	±5%	0.75	±200	-55 to 155	Yes	Active
ERJ-P08J821V	Panasonic Electronic Components	820 Ω	±5%	0.667	±200	-55 to 155	Yes	Active
CR1206-JW-821ELF	Bourns Inc.	820 Ω	±5%	0.25	±200	-55 to 155	No	Active

Engineering Selection Recommendations

For Direct Replacement (Equivalent Specifications): Select CRCW1206820RJNEA (Vishay Dale), RMCF1206JT820R (Stackpole Electronics Inc), or ERJ-8GEYJ821V (Panasonic Electronic Components) when identical electrical and mechanical characteristics are required. All three maintain AEC-Q200 automotive qualification, ±5% tolerance, 0.25W power rating, and identical operating temperature range. RMCF1206JT820R and CRCW1206820RJNEA are preferred due to Active product status.

For Upgraded Performance: Select CRCW1206820RFKEA (Vishay Dale) when tighter tolerance (±1%) and improved temperature coefficient (±100ppm/°C) are beneficial. This part maintains 0.25W power rating and AEC-Q200 compliance with Active status.

Select ESR18EZPJ821 (Rohm Semiconductor), CRCW1206820RJNEAHP (Vishay Dale), or ERJ-P08J821V (Panasonic Electronic Components) when higher power dissipation capability is required. All three maintain ±5% tolerance, AEC-Q200 compliance, and identical operating temperature range with Active product status.

For Non-Automotive Applications: CR1206-JW-821ELF (Bourns Inc.) provides equivalent electrical specifications with moisture-resistant thick film composition. This part lacks AEC-Q200 rating and is suitable only for non-automotive applications.

Avoid: ERJ-8GEYJ821V carries "Not For New Designs" status and should be used only for legacy system maintenance where no other option exists.

Frequently Asked Questions (FAQ)

Q: Can I use a higher power-rated resistor as a substitute? A: Yes. Resistors with power ratings of 0.5W, 0.667W, or 0.75W are direct substitutes for the 0.25W MCR18EZPJ821, provided all other parameters (resistance, tolerance, package, temperature range, and AEC-Q200 compliance) remain unchanged. Higher power ratings do not affect circuit function in applications designed for 0.25W components.

Q: What is the difference between ±5% and ±1% tolerance parts? A: Tolerance defines the acceptable deviation from the nominal 820 Ohm value. ±5% allows deviation between 779 and 861 Ohms; ±1% allows deviation between 812 and 828 Ohms. Use ±1% parts (CRCW1206820RFKEA) only when circuit design specifically requires tighter tolerance control.

Q: Are all listed substitutes automotive-qualified? A: No. CR1206-JW-821ELF lacks AEC-Q200 certification. All other substitutes carry AEC-Q200 automotive qualification. For automotive applications, use only AEC-Q200 rated parts.

Q: Does package format affect substitutability? A: No. All listed parts use identical 1206 (3216 Metric) package dimensions and footprint. Packaging format (Tape & Reel, Cut Tape, or Digi-Reel) affects supply and handling only, not electrical or mechanical compatibility.

Q: Can I substitute a non-AEC-Q200 part in an automotive circuit? A: No. Automotive applications require AEC-Q200 qualification. CR1206-JW-821ELF is suitable only for consumer or industrial applications without automotive requirements.

Q: Why is ERJ-8GEYJ821V marked "Not For New Designs"? A: This designation indicates the manufacturer is phasing out the product line. While functionally equivalent, new designs should use alternatives with Active status: CRCW1206820RJNEA, RMCF1206JT820R, or upgraded options.

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