ESR10EZPJ394 Equivalent & Substitute Parts

Part Overview

The ESR10EZPJ394 is a 390 kOhms ±5% thick film chip resistor manufactured by Rohm Semiconductor in 0805 (2012 Metric) package format. This component is rated for 0.4W power dissipation and meets automotive AEC-Q200 qualification standards with pulse withstanding capability. The part is currently in active production status with 1155 units available in inventory.

Substitute parts are necessary when design requirements demand improved tolerance specifications, higher power ratings, or when primary part availability becomes constrained. Alternative sources from qualified manufacturers ensure supply chain flexibility while maintaining electrical and mechanical compatibility.

Substiute Parts

ESR10EZPJ394

Rohm SemiconductorIn Stock: 1256ESR10EZPJ394 Datasheet

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ESR10EZPF3903

Rohm SemiconductorIn Stock: 1171ESR10EZPF3903 Datasheet

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ERJ-P06J394V

Panasonic Electronic ComponentsIn Stock: 15753ERJ-P06J394V Datasheet

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ERJ-P6WJ394V

Panasonic Electronic ComponentsIn Stock: 11136ERJ-P6WJ394V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESR10EZPJ394 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Resistance value: 390 kOhms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or wider range acceptable)
• Automotive qualification: AEC-Q200 (required for automotive applications)
• RoHS compliance: ROHS3 Compliant (required)

Allowable Variations:

• Tolerance: ±5% or tighter (±1% acceptable as upgrade)
• Power rating: 0.4W or higher (0.5W acceptable as upgrade)
• Temperature coefficient: ±200ppm/°C or lower (±100ppm/°C acceptable as upgrade)
• Manufacturer: Different qualified manufacturers acceptable
• Product status: Active or Not For New Designs (with design consideration)

Three substitute parts meet these criteria with specific parameter enhancements.

Parameter Comparison

Engineering Selection Recommendations

ESR10EZPF3903 (Rohm Semiconductor): This substitute provides improved tolerance specification (±1% versus ±5%) with identical power rating and package dimensions. Temperature coefficient is reduced to ±100ppm/°C, enhancing frequency stability. Active product status and equivalent height profile make this suitable for designs requiring tighter resistance tolerances without physical layout modifications.

ERJ-P06J394V (Panasonic Electronic Components): This substitute increases power rating to 0.5W while maintaining ±5% tolerance and identical temperature coefficient. Height increases to 0.028" (0.70mm), requiring verification of PCB clearance in space-constrained applications. Active product status and higher inventory availability (15675 units) support supply chain continuity.

ERJ-P6WJ394V (Panasonic Electronic Components): This substitute matches ERJ-P06J394V electrical specifications with 0.5W power rating and ±5% tolerance. Product status is "Not For New Designs," restricting use to legacy system maintenance or existing design revisions only. Height reaches 0.030" (0.75mm), requiring clearance assessment. This part is suitable only when ERJ-P06J394V is unavailable and design is not new.

Frequently Asked Questions (FAQ)

Q: Can ESR10EZPF3903 replace ESR10EZPJ394 in all applications?

A: Yes, ESR10EZPF3903 is a direct substitute with enhanced tolerance (±1% versus ±5%) and improved temperature coefficient (±100ppm/°C versus ±200ppm/°C). Identical package dimensions and power rating ensure mechanical and electrical compatibility. The tighter tolerance may improve circuit performance in precision applications.

Q: What is the difference between ERJ-P06J394V and ERJ-P6WJ394V?

A: Both parts share identical electrical specifications (390 kOhms, ±5%, 0.5W, ±200ppm/°C). The primary difference is product status: ERJ-P06J394V is Active, while ERJ-P6WJ394V is Not For New Designs. Physical height differs slightly (0.028" versus 0.030"), requiring PCB clearance verification. ERJ-P06J394V is preferred for new designs.

Q: Are all substitute parts automotive-qualified?

A: Yes, all substitute parts listed carry AEC-Q200 automotive qualification and ROHS3 compliance, matching the original ESR10EZPJ394 specifications. All operate across the -55°C to 155°C temperature range required for automotive applications.

Q: Can I use a substitute with higher power rating in place of the original?

A: Yes, substitutes with equal or higher power ratings (0.4W or greater) are electrically compatible. Higher power ratings provide design margin and do not degrade circuit performance. Physical dimensions must be verified for PCB layout compatibility, particularly height clearance.

Q: What is the impact of tolerance differences on circuit design?

A: ESR10EZPF3903 with ±1% tolerance provides superior accuracy compared to the original ±5% specification. This reduces component-induced circuit variation and improves performance in precision analog circuits, filtering networks, and timing applications. Standard ±5% tolerance parts remain suitable for general-purpose applications where tighter tolerance is not required.

Q: Are there any moisture sensitivity concerns with these substitutes?

A: No, all parts including the original ESR10EZPJ394 carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.