ESR18EZPJ510 Equivalent & Substitute Parts

Part Overview

The ESR18EZPJ510 is a 51 Ohm ±5% 0.5W thick film chip resistor in 1206 (3216 Metric) package manufactured by Rohm Semiconductor. This component is AEC-Q200 automotive qualified with pulse withstanding capability and operates across -55°C to 155°C. The part is active in production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design requirements allow for parameter variations within acceptable tolerances. The following alternatives maintain electrical and mechanical compatibility while offering different tolerance grades or power ratings.

Key Parameters

Parameter	Value
Resistance	51 Ohms
Tolerance	±5%
Power Rating	0.5W (1/2W)
Package	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

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Identical resistance value: 51 Ohms
Identical package: 1206 (3216 Metric)
Identical composition: Thick Film
Identical operating temperature range: -55°C to 155°C
Identical automotive qualification: AEC-Q200
Identical RoHS compliance: ROHS3

Allowable Parameter Variations:

Tolerance: May upgrade from ±5% to ±1% (tighter tolerance acceptable)
Power rating: May upgrade from 0.5W to 0.667W or 0.75W (higher power rating acceptable)
Temperature coefficient: May vary within automotive specifications (±100ppm/°C to ±200ppm/°C acceptable)
Physical dimensions: Minor variations within package specification acceptable

All substitute parts listed maintain full electrical and mechanical compatibility with the ESR18EZPJ510 within these defined parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power Rating	Temp Coeff	Package	AEC-Q200	RoHS3
ESR18EZPJ510	Rohm Semiconductor	51 Ω	±5%	0.5W	±200ppm/°C	1206	Yes	Yes
ESR18EZPF51R0	Rohm Semiconductor	51 Ω	±1%	0.5W	±100ppm/°C	1206	Yes	Yes
ERJ-P08J510V	Panasonic Electronic Components	51 Ω	±5%	0.667W	±200ppm/°C	1206	Yes	Yes
RCS120651R0JNEA	Vishay Dale	51 Ω	±5%	0.5W	±200ppm/°C	1206	Yes	Yes
CRCW120651R0JNEAHP	Vishay Dale	51 Ω	±5%	0.75W	±200ppm/°C	1206	Yes	Yes

Engineering Selection Recommendations

ESR18EZPF51R0 (Rohm Semiconductor): This upgrade substitute offers tighter tolerance (±1% versus ±5%) and improved temperature coefficient (±100ppm/°C versus ±200ppm/°C) while maintaining identical power rating and package. Select this part when circuit design requires enhanced precision and thermal stability. Same manufacturer as primary part ensures consistent quality and process control.

ERJ-P08J510V (Panasonic Electronic Components): This direct substitute maintains identical tolerance and temperature coefficient while providing increased power rating (0.667W versus 0.5W). Select this part when thermal margin improvement is required or when Panasonic supply chain availability is preferred. Identical electrical specifications with enhanced thermal capability.

RCS120651R0JNEA (Vishay Dale): This direct substitute provides identical electrical and thermal specifications to the primary part. Select this part when Vishay Dale supply chain availability is required or when component sourcing from multiple manufacturers is necessary for supply chain resilience.

CRCW120651R0JNEAHP (Vishay Dale): This upgrade substitute offers increased power rating (0.75W versus 0.5W) while maintaining all other specifications. Select this part when additional thermal margin is required or when higher power dissipation capability is beneficial for circuit reliability.

All substitute parts maintain active production status, full AEC-Q200 automotive qualification, and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can ESR18EZPF51R0 be used as a direct replacement for ESR18EZPJ510?

A: Yes. ESR18EZPF51R0 is a direct substitute with improved specifications. The tighter tolerance (±1% versus ±5%) and lower temperature coefficient (±100ppm/°C versus ±200ppm/°C) make it suitable for any application requiring the original part. No circuit modifications are necessary.

Q: What is the difference between the power ratings of these substitutes?

A: The primary part ESR18EZPJ510 is rated at 0.5W. Substitute parts ERJ-P08J510V (0.667W) and CRCW120651R0JNEAHP (0.75W) have higher power ratings. Higher power ratings provide additional thermal margin and are suitable for applications with higher power dissipation requirements. All parts operate within the same temperature range and package dimensions.

Q: Are all substitute parts automotive qualified?

A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification identical to the primary part. All parts are suitable for automotive applications requiring this certification.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All substitute parts use the 1206 (3216 Metric) package with identical footprint and land pattern. No PCB layout modifications are required for substitution.

Q: What is the significance of tolerance differences between parts?

A: The primary part ESR18EZPJ510 has ±5% tolerance, meaning the actual resistance value can vary between 48.45 Ohms and 54.65 Ohms. ESR18EZPF51R0 has ±1% tolerance, meaning the actual value can vary between 50.49 Ohms and 51.51 Ohms. Tighter tolerance provides more precise resistance values for circuits requiring higher accuracy.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the primary part specifications.

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