ESR18EZPJ203 Equivalent & Substitute Parts

Part Overview

The ESR18EZPJ203 is a 20 kOhms ±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 is currently in active production status. Equivalent and substitute parts are identified when identical resistance values, package dimensions, and electrical ratings are maintained across different manufacturers or when upgraded tolerance or power ratings are available within the same package footprint.

Key Parameters

Parameter	Value
Resistance	20 kOhms
Tolerance	±5%
Power Rating	0.5W (1/2W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ESR18EZPJ203 is determined by the following criteria:

Direct Equivalents maintain identical resistance (20 kOhms), tolerance (±5%), power rating (0.5W), package (1206), composition (thick film), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. These parts are interchangeable without circuit redesign.

Upgrade Substitutes improve upon the main part by increasing tolerance accuracy (±1% vs ±5%) or power rating (0.75W vs 0.5W) while maintaining all other critical parameters including package, resistance value, operating temperature, and automotive qualification. These upgrades provide enhanced performance margins.

Cross-Manufacturer Equivalents are sourced from different manufacturers (Panasonic, Vishay Dale) but maintain the same electrical specifications and package requirements. The ERJ-P08J203V from Panasonic offers a higher power rating (2/3W) within the same 1206 package.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temperature Coefficient	Operating Temperature	AEC-Q200	RoHS Status
ESR18EZPJ203	Rohm Semiconductor	20 kOhms	±5%	0.5W	1206	±200ppm/°C	-55°C ~ 155°C	Yes	ROHS3
ESR18EZPF2002	Rohm Semiconductor	20 kOhms	±1%	0.5W	1206	±100ppm/°C	-55°C ~ 155°C	Yes	ROHS3
ERJ-P08J203V	Panasonic Electronic Components	20 kOhms	±5%	0.667W	1206	±200ppm/°C	-55°C ~ 155°C	Yes	ROHS3
RCS120620K0JNEA	Vishay Dale	20 kOhms	±5%	0.5W	1206	±200ppm/°C	-55°C ~ 155°C	Yes	ROHS3
CRCW120620K0JNEAHP	Vishay Dale	20 kOhms	±5%	0.75W	1206	±200ppm/°C	-55°C ~ 155°C	Yes	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance for automotive applications.

For direct replacement without performance modification: Select RCS120620K0JNEA (Vishay Dale) as a direct equivalent. This part matches all electrical and mechanical specifications of the ESR18EZPJ203, including 20 kOhms resistance, ±5% tolerance, 0.5W power rating, and 1206 package dimensions.

For improved tolerance accuracy: Select ESR18EZPF2002 (Rohm Semiconductor). This upgrade maintains the same manufacturer, package, and power rating while reducing tolerance to ±1% and temperature coefficient to ±100ppm/°C, providing tighter resistance control in precision applications.

For increased power dissipation capability: Select CRCW120620K0JNEAHP (Vishay Dale) for 0.75W rating or ERJ-P08J203V (Panasonic) for 0.667W rating. Both maintain the 1206 package and AEC-Q200 qualification while providing higher power margins.

Frequently Asked Questions (FAQ)

Q: Can ESR18EZPJ203 be replaced with RCS120620K0JNEA? A: Yes. Both parts share identical resistance (20 kOhms), tolerance (±5%), power rating (0.5W), package (1206), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. Direct substitution is supported.

Q: What is the difference between ESR18EZPJ203 and ESR18EZPF2002? A: Both are Rohm Semiconductor 1206 package resistors with 20 kOhms resistance and 0.5W power rating. ESR18EZPF2002 provides improved tolerance (±1% vs ±5%) and lower temperature coefficient (±100ppm/°C vs ±200ppm/°C), making it suitable for applications requiring tighter resistance control.

Q: Can I use CRCW120620K0JNEAHP as a substitute for ESR18EZPJ203? A: Yes, with the consideration that CRCW120620K0JNEAHP provides a higher power rating (0.75W vs 0.5W). All other parameters including resistance, tolerance, package, and automotive qualification are compatible. This upgrade is suitable when additional thermal margin is required.

Q: Are all substitute parts AEC-Q200 qualified? A: Yes. All listed substitute parts carry AEC-Q200 automotive qualification, ensuring compliance with automotive reliability standards.

Q: What is the package compatibility between these parts? A: All parts use the 1206 (3216 Metric) package with identical footprint dimensions (0.126" L x 0.063" W / 3.20mm x 1.60mm), ensuring PCB layout compatibility. Height variations (0.026" to 0.028") are within standard assembly tolerances.

Q: Can ERJ-P08J203V replace ESR18EZPJ203 in all applications? A: ERJ-P08J203V is compatible for direct substitution with the advantage of higher power rating (0.667W vs 0.5W). The 1206 package, 20 kOhms resistance, ±5% tolerance, and AEC-Q200 qualification are identical. Packaging format differs (Cut Tape & Digi-Reel vs Tape & Reel), which may affect procurement logistics but not electrical performance.

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