ESR03EZPJ304 Equivalent & Substitute Parts

Part Overview

The ESR03EZPJ304 is a 300 kOhms ±5% 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 currently active in production with 1511 pieces available in stock. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, inventory availability, or specific performance characteristics that align with the original specification parameters.

Substiute Parts

ESR03EZPJ304

Rohm SemiconductorIn Stock: 1589ESR03EZPJ304 Datasheet

Current PartRFQ

ERJ-PA3J304V

Panasonic Electronic ComponentsIn Stock: 15814ERJ-PA3J304V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESR03EZPJ304 is determined by the following critical parameters:

• Resistance value: 300 kOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Package: 0603 (1608 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±200ppm/°C (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)

The ERJ-PA3J304V qualifies as a direct substitute based on matching all critical parameters. The power rating difference (0.333W vs 0.25W) represents a higher capability that does not compromise compatibility, as the substitute can handle equal or greater power dissipation within the same thermal and mechanical envelope.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-PA3J304V from Panasonic Electronic Components is a qualified direct substitute for the ESR03EZPJ304. Both components maintain identical electrical specifications, mechanical dimensions, and automotive compliance certifications. The substitute part carries AEC-Q200 qualification and ROHS3 compliance status, meeting all regulatory and quality requirements of the original specification. The increased power rating of the substitute (0.333W versus 0.25W) provides additional thermal margin without affecting circuit performance or board layout compatibility. Selection between these parts may be based on inventory availability, supply chain considerations, or procurement preferences, as both components satisfy the full range of application requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-PA3J304V be used as a direct replacement for ESR03EZPJ304 in automotive applications?

A: Yes. Both components are AEC-Q200 rated, share identical resistance, tolerance, temperature coefficient, and operating temperature range specifications. The 0603 package dimensions and mechanical characteristics are identical, ensuring PCB compatibility without layout modifications.

Q: What is the significance of the power rating difference between the two parts?

A: The ERJ-PA3J304V is rated at 0.333W (1/3W) compared to the ESR03EZPJ304 at 0.25W (1/4W). This represents a higher power dissipation capability within the same physical package. For circuits designed around the 0.25W specification, the higher-rated substitute provides additional thermal headroom and does not introduce any compatibility issues.

Q: Are there any differences in RoHS or environmental compliance?

A: No. Both parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for both components, and both carry identical ECCN and HTSUS classifications.

Q: Does the 0603 package ensure mechanical interchangeability?

A: Yes. Both components share identical dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm) and maximum seated height (0.022" / 0.55mm). PCB footprints, solder reflow profiles, and assembly processes remain unchanged between the two parts.

Q: Are temperature performance characteristics identical?

A: Yes. Both components operate across -55°C to 155°C with ±200ppm/°C temperature coefficient, ensuring equivalent thermal stability and performance across the full automotive operating range.