ESR03EZPJ303 Equivalent & Substitute Parts

Part Overview

The ESR03EZPJ303 is a 30 kOhms ±5% 0.25W 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 pulse withstanding capability. The part is active in production with 1482 units currently in stock. Equivalent and substitute parts are identified when design requirements allow for tolerance upgrades, power rating increases, or manufacturer alternatives while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	30 kOhms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ESR03EZPJ303 is determined by the following criteria:

Core Compatibility Requirements:

Resistance value: 30 kOhms (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Operating temperature range: -55°C ~ 155°C (exact match or better required)
Automotive rating: AEC-Q200 (exact match required)
RoHS compliance: ROHS3 Compliant (exact match required)

Allowable Variations:

Tolerance: May be upgraded from ±5% to ±1% (tighter tolerance acceptable)
Power rating: May be upgraded from 0.25W to 0.333W (higher power rating acceptable)
Temperature coefficient: May be improved from ±200ppm/°C to ±100ppm/°C (lower coefficient acceptable)
Manufacturer: Alternative manufacturers acceptable if all other parameters match

Three substitute parts meet these criteria, representing upgrade paths and manufacturer alternatives.

Parameter Comparison

Parameter	ESR03EZPJ303 (Main)	ESR03EZPF3002 (Upgrade)	CRCW060330K0JNEAHP (Direct)	ERJ-PA3J303V (Direct)
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	Vishay Dale	Panasonic Electronic Components
Resistance	30 kOhms	30 kOhms	30 kOhms	30 kOhms
Tolerance	±5%	±1%	±5%	±5%
Power Rating	0.25W	0.25W	0.333W	0.333W
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±200ppm/°C	±100ppm/°C	±200ppm/°C	±200ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
AEC-Q200 Rating	Yes	Yes	Yes	Yes
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	MSL 1	MSL 1	MSL 1	MSL 1
Product Status	Active	Active	Active	Active
Current Inventory	1482 Pcs	8557 Pcs	4866 Pcs	20741 Pcs

Engineering Selection Recommendations

ESR03EZPF3002 (Rohm Semiconductor): This part represents a tolerance upgrade from ±5% to ±1% while maintaining all other specifications. Selection is appropriate for applications requiring tighter resistance tolerance. All compliance certifications (AEC-Q200, ROHS3, MSL 1) are maintained. Higher inventory availability (8557 units) supports supply chain continuity.

CRCW060330K0JNEAHP (Vishay Dale): This part provides a power rating upgrade from 0.25W to 0.333W in the same 0603 package. Tolerance remains ±5%. Selection is appropriate for applications requiring higher power dissipation capability. All automotive and environmental compliance certifications are maintained. Dimensions show a minor width variation (0.85mm vs 0.80mm) within the 0603 package specification.

ERJ-PA3J303V (Panasonic Electronic Components): This part maintains the original ±5% tolerance and 0.333W power rating. Selection provides manufacturer diversity while preserving electrical specifications. All compliance certifications are maintained. Highest inventory availability (20741 units) supports extended supply chain flexibility.

Frequently Asked Questions (FAQ)

Q: Can ESR03EZPF3002 be used as a direct replacement for ESR03EZPJ303?

A: Yes. ESR03EZPF3002 is a direct substitute with improved tolerance (±1% vs ±5%). The tighter tolerance is backward compatible with applications designed for ±5% tolerance. All other electrical and mechanical parameters are identical.

Q: What is the difference between the 0.25W and 0.333W power ratings?

A: The 0.333W (1/3W) rated parts (CRCW060330K0JNEAHP and ERJ-PA3J303V) can dissipate higher power levels than the 0.25W (1/4W) rated ESR03EZPJ303. Selection of higher power rating is appropriate when circuit analysis indicates power dissipation exceeding 0.25W. The 0.333W parts are backward compatible for applications designed for 0.25W.

Q: Are there physical size differences between these parts?

A: All parts use the 0603 (1608 Metric) package. CRCW060330K0JNEAHP has a width of 0.85mm compared to 0.80mm for other parts. Both dimensions fall within 0603 package tolerance and are mechanically compatible on standard PCB layouts.

Q: Do all substitute parts maintain AEC-Q200 automotive qualification?

A: Yes. All listed substitute parts carry AEC-Q200 rating and are suitable for automotive applications. Temperature coefficient specifications and operating temperature ranges support automotive environmental requirements.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake requirements. All parts in this comparison carry MSL 1 rating, eliminating moisture management considerations during storage and handling.

Q: Are these parts RoHS compliant?

A: Yes. All parts are ROHS3 compliant, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

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