MCR18EZPJ511 Equivalent & Substitute Parts

Part Overview

The MCR18EZPJ511 is a 510 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 operating temperature range of -55°C to 155°C. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Resistance	510 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package	1206 (3216 Metric)
Composition	Thick Film
Automotive Rating	AEC-Q200
Operating Temperature	-55°C to 155°C
Temperature Coefficient	±200ppm/°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters: resistance value (510 Ohms), tolerance (±5%), package format (1206), composition (thick film), and automotive certification (AEC-Q200). Parts are categorized as follows:

Direct Equivalents maintain all electrical specifications (resistance, tolerance, power rating) and mechanical compatibility. These parts are pin-for-pin compatible with identical thermal and electrical performance characteristics.

Upgrade Substitutes provide enhanced specifications while maintaining backward compatibility. These include higher power ratings (0.5W, 0.667W, 0.75W), improved tolerance (±1%), or additional pulse withstanding capability. Higher power ratings allow operation in more demanding thermal environments without performance degradation.

Similar Alternatives meet core electrical and mechanical requirements but may lack automotive AEC-Q200 certification or employ different feature sets. These are suitable for non-critical applications where automotive qualification is not mandatory.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Temp Coeff	AEC-Q200	Product Status	Height (Max)
MCR18EZPJ511	Rohm Semiconductor	510 Ohms	±5%	0.25W	±200ppm/°C	Yes	Discontinued	0.026" (0.65mm)
CRCW1206510RJNEA	Vishay Dale	510 Ohms	±5%	0.25W	±200ppm/°C	Yes	Active	0.024" (0.60mm)
ERJ-8GEYJ511V	Panasonic Electronic Components	510 Ohms	±5%	0.25W	±200ppm/°C	Yes	Not For New Designs	0.028" (0.70mm)
RMCF1206JT510R	Stackpole Electronics Inc	510 Ohms	±5%	0.25W	±200ppm/°C	Yes	Active	0.028" (0.70mm)
CRCW1206510RFKEA	Vishay Dale	510 Ohms	±1%	0.25W	±100ppm/°C	Yes	Active	0.024" (0.60mm)
CRCW1206510RJNEAHP	Vishay Dale	510 Ohms	±5%	0.75W	±200ppm/°C	Yes	Active	0.026" (0.65mm)
ESR18EZPJ511	Rohm Semiconductor	510 Ohms	±5%	0.5W	±200ppm/°C	Yes	Active	0.026" (0.65mm)
ERJ-P08J511V	Panasonic Electronic Components	510 Ohms	±5%	0.667W	±200ppm/°C	Yes	Active	0.028" (0.70mm)
CR1206-JW-511ELF	Bourns Inc.	510 Ohms	±5%	0.25W	±200ppm/°C	No	Active	0.030" (0.75mm)

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): CRCW1206510RJNEA (Vishay Dale) and RMCF1206JT510R (Stackpole Electronics Inc) are the primary direct equivalents. Both maintain 510 Ohms ±5% at 0.25W with AEC-Q200 automotive certification and active product status. CRCW1206510RJNEA offers superior availability and lower seated height (0.024" vs 0.028"), making it the preferred choice for space-constrained designs.

For Enhanced Reliability (Upgraded Specifications): CRCW1206510RFKEA (Vishay Dale) provides improved tolerance (±1% vs ±5%) and reduced temperature coefficient (±100ppm/°C vs ±200ppm/°C) while maintaining 0.25W power rating and AEC-Q200 compliance. This upgrade is suitable for precision analog circuits requiring tighter resistance tolerance.

For Thermal Margin Enhancement: ESR18EZPJ511 (Rohm Semiconductor), CRCW1206510RJNEAHP (Vishay Dale), and ERJ-P08J511V (Panasonic Electronic Components) provide increased power dissipation capability (0.5W, 0.75W, and 0.667W respectively) while maintaining identical resistance and tolerance specifications. These upgrades are appropriate for applications experiencing elevated ambient temperatures or higher current stress.

For Non-Automotive Applications: CR1206-JW-511ELF (Bourns Inc.) meets electrical and mechanical requirements with moisture-resistant construction but lacks AEC-Q200 automotive certification. This part is suitable only for consumer or industrial applications where automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can I use CRCW1206510RFKEA as a direct replacement for MCR18EZPJ511? A: Yes, with consideration for tolerance requirements. CRCW1206510RFKEA maintains identical 510 Ohms resistance, 0.25W power rating, 1206 package, and AEC-Q200 certification. The improved ±1% tolerance is a superset of the original ±5% specification, making it electrically compatible. Verify circuit design does not depend on the original ±200ppm/°C temperature coefficient; CRCW1206510RFKEA specifies ±100ppm/°C.

Q: What is the difference between direct equivalents and upgrade substitutes? A: Direct equivalents (CRCW1206510RJNEA, RMCF1206JT510R) replicate all electrical and mechanical specifications of the original part. Upgrade substitutes provide enhanced performance characteristics—higher power ratings (ESR18EZPJ511, CRCW1206510RJNEAHP, ERJ-P08J511V) or improved tolerance (CRCW1206510RFKEA)—while maintaining backward compatibility and AEC-Q200 certification.

Q: Are there package compatibility concerns between substitute parts? A: All listed substitutes use the 1206 (3216 Metric) package with identical footprint dimensions (0.126" L x 0.063" W / 3.20mm x 1.60mm). Seated height varies between 0.024" and 0.030" maximum. Verify PCB assembly equipment clearance specifications if height variation exceeds design margins.

Q: Why is ERJ-8GEYJ511V marked "Not For New Designs"? A: This designation indicates the manufacturer has transitioned the product to end-of-life status. While electrically and mechanically equivalent to MCR18EZPJ511, ERJ-8GEYJ511V should not be selected for new designs due to uncertain long-term availability. CRCW1206510RJNEA or RMCF1206JT510R are preferred alternatives with active product status.

Q: Can I substitute CR1206-JW-511ELF in an automotive application? A: CR1206-JW-511ELF is not AEC-Q200 certified and lacks automotive qualification. Use only in non-automotive applications. For automotive designs, select from parts explicitly rated AEC-Q200: CRCW1206510RJNEA, RMCF1206JT510R, CRCW1206510RFKEA, CRCW1206510RJNEAHP, ESR18EZPJ511, or ERJ-P08J511V.

Q: What power rating should I select for thermal margin? A: The original MCR18EZPJ511 specifies 0.25W. If circuit analysis indicates power dissipation approaching this limit or if operating temperature exceeds 125°C, select upgrade substitutes with higher ratings: ESR18EZPJ511 (0.5W), ERJ-P08J511V (0.667W), or CRCW1206510RJNEAHP (0.75W). All maintain identical resistance and tolerance specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message