ESR18EZPJ393 Equivalent & Substitute Parts

Part Overview

The ESR18EZPJ393 is a 39 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, designed for automotive and industrial applications requiring reliable resistive elements in compact form factors. The part is active in production with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when electrical parameters (resistance value, tolerance, power rating) and mechanical specifications (package, dimensions, termination count) align with application requirements, while offering alternative manufacturers or enhanced performance characteristics.

Substiute Parts

ESR18EZPJ393

Rohm SemiconductorIn Stock: 945ESR18EZPJ393 Datasheet

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ESR18EZPF3902

Rohm SemiconductorIn Stock: 4875ESR18EZPF3902 Datasheet

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ERJ-P08J393V

Panasonic Electronic ComponentsIn Stock: 29541ERJ-P08J393V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ESR18EZPJ393 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 39 kOhms
• Package / Case: 1206 (3216 Metric)
• Composition: Thick Film
• Operating temperature range: -55°C ~ 155°C minimum
• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Tolerance: ±1% (tighter tolerance acceptable as upgrade)
• Power rating: ≥0.5W (higher power rating acceptable)
• Temperature coefficient: ±100ppm/°C to ±200ppm/°C
• Manufacturer: Alternative qualified suppliers
• Height variation: Within standard 1206 package specifications

Two substitute parts meet these criteria with distinct upgrade characteristics: one offering improved tolerance specification, and one providing increased power dissipation capability.

Parameter Comparison

Engineering Selection Recommendations

ESR18EZPF3902 (Rohm Semiconductor): This substitute provides direct compatibility with identical power rating and package specifications while offering improved tolerance performance at ±1%. The tighter tolerance and reduced temperature coefficient (±100ppm/°C vs ±200ppm/°C) make this suitable for applications requiring enhanced accuracy. Both parts share Rohm Semiconductor manufacturing, ensuring consistent quality and AEC-Q200 automotive qualification. This represents a performance upgrade path within the same manufacturer ecosystem.

ERJ-P08J393V (Panasonic Electronic Components): This substitute maintains identical resistance and tolerance specifications while providing increased power dissipation capability at 0.667W versus 0.5W. The 1206 package remains unchanged with minimal height variation (0.028" vs 0.026"). Panasonic's ERJ-P08 series carries equivalent AEC-Q200 automotive qualification and ROHS3 compliance. This option is suitable for applications where thermal margin or power budget requires higher dissipation capacity within the same footprint.

Both substitutes maintain full automotive qualification, regulatory compliance, and thermal operating range compatibility with the original ESR18EZPJ393 specification.

Frequently Asked Questions (FAQ)

Q: Can ESR18EZPF3902 be used as a direct replacement for ESR18EZPJ393?

A: Yes. Both parts share identical resistance (39 kOhms), power rating (0.5W), package (1206), and operating temperature range (-55°C ~ 155°C). The ESR18EZPF3902 offers tighter tolerance (±1% vs ±5%) and lower temperature coefficient, making it functionally compatible and suitable for direct substitution in existing designs.

Q: What is the primary difference between the two substitute options?

A: ESR18EZPF3902 provides improved tolerance and temperature stability from Rohm Semiconductor. ERJ-P08J393V offers increased power rating (0.667W vs 0.5W) from Panasonic. Both maintain identical resistance value and 1206 package compatibility. Selection depends on whether tolerance precision or thermal headroom is the priority.

Q: Are there package or PCB layout considerations when substituting?

A: Both substitutes use the 1206 (3216 Metric) package with identical length and width (0.126" × 0.063"). Height variation is minimal: ESR18EZPF3902 at 0.026" and ERJ-P08J393V at 0.028" maximum seated height. Standard 1206 footprints accommodate both without layout modification.

Q: Do all three parts meet automotive qualification requirements?

A: Yes. ESR18EZPJ393, ESR18EZPF3902, and ERJ-P08J393V all carry AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 (unlimited) moisture sensitivity rating, ensuring suitability for automotive and industrial applications.

Q: What tolerance should be specified for critical circuit applications?

A: For applications requiring tighter tolerance control, ESR18EZPF3902 at ±1% provides superior accuracy compared to the ±5% specification of both ESR18EZPJ393 and ERJ-P08J393V. Temperature coefficient is also improved at ±100ppm/°C versus ±200ppm/°C.

Q: Can ERJ-P08J393V be used in space-constrained designs?

A: Yes. The ERJ-P08J393V maintains the 1206 package footprint with only 0.002" additional height (0.028" vs 0.026" maximum). This minimal difference is within standard PCB assembly tolerances and does not restrict use in space-constrained applications using standard 1206 component placement.