ESR18EZPJ391 Equivalent & Substitute Parts

Part Overview

The ESR18EZPJ391 is a 390 Ohm ±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 operates across -55°C to 155°C. The part is active in production status with 5765 units in current inventory. Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, power rating increases, or manufacturer substitution while maintaining core electrical and mechanical compatibility.

Substiute Parts

ESR18EZPJ391

Rohm SemiconductorIn Stock: 5868ESR18EZPJ391 Datasheet

Current PartRFQ

ESR18EZPF3900

Rohm SemiconductorIn Stock: 4731ESR18EZPF3900 Datasheet

UpgradeRFQ

ERJ-P08J391V

Panasonic Electronic ComponentsIn Stock: 8096ERJ-P08J391V Datasheet

DirectRFQ

CRCW1206390RJNEAHP

Vishay DaleIn Stock: 843CRCW1206390RJNEAHP Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESR18EZPJ391 is determined by the following criteria:

Mandatory Compatibility Parameters:

• Resistance value: 390 Ohms (exact match required)
• Package type: 1206 (3216 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 Variation Parameters:

• Tolerance: ±5% or tighter (±1% acceptable as upgrade)
• Power rating: 0.5W or higher (0.667W and 0.75W acceptable as upgrades)
• Temperature coefficient: ±200ppm/°C or better (±100ppm/°C acceptable as upgrade)
• Manufacturer: Rohm Semiconductor, Panasonic Electronic Components, or Vishay Dale (all qualified suppliers)

Substitutes are grouped by tolerance and power rating improvements while maintaining identical resistance, package, and automotive compliance.

Parameter Comparison

Engineering Selection Recommendations

ESR18EZPF3900 (Rohm Semiconductor): Select this upgrade substitute when tighter tolerance control is required. The ±1% tolerance and improved ±100ppm/°C temperature coefficient provide enhanced precision while maintaining identical power rating and package. Identical manufacturer ensures process consistency. Active production status and adequate inventory support supply chain continuity.

ERJ-P08J391V (Panasonic Electronic Components): Select this direct substitute when higher power dissipation capability is beneficial. The 0.667W rating provides 33% additional power margin over the main part while maintaining ±5% tolerance and ±200ppm/°C temperature coefficient. Panasonic's AEC-Q200 qualification and ROHS3 compliance meet automotive requirements. Highest current inventory (7990 units) supports immediate availability.

CRCW1206390RJNEAHP (Vishay Dale): Select this upgrade substitute when maximum power dissipation margin is required. The 0.75W rating provides 50% additional power capacity. Vishay Dale's CRCW-HP series maintains AEC-Q200 automotive qualification and ROHS3 compliance. Slightly reduced package length (3.10mm vs 3.20mm) remains within 1206 specification tolerance. Lower current inventory (746 units) requires lead time consideration.

All substitute parts maintain identical 1206 package footprint, -55°C to 155°C operating range, and automotive AEC-Q200 qualification required for direct PCB replacement.

Frequently Asked Questions (FAQ)

Q: Can ESR18EZPF3900 replace ESR18EZPJ391 in all applications?

A: Yes, when tolerance improvement is acceptable. The ±1% tolerance is a tighter specification than the ±5% requirement, making it a direct upgrade. Identical 0.5W power rating, 1206 package, and -55°C to 155°C operating range ensure functional compatibility. Both parts are Rohm Semiconductor products with AEC-Q200 qualification.

Q: What is the primary difference between ERJ-P08J391V and the main part?

A: The ERJ-P08J391V provides 0.667W power rating versus 0.5W in the main part, representing a 33% power margin increase. Manufacturer differs (Panasonic vs Rohm), but both maintain identical 390 Ohm resistance, ±5% tolerance, 1206 package, and AEC-Q200 automotive qualification. Temperature coefficient remains ±200ppm/°C.

Q: Is CRCW1206390RJNEAHP suitable for space-constrained designs?

A: The CRCW1206390RJNEAHP maintains 1206 package classification with length of 3.10mm versus 3.20mm in the main part. This 0.1mm reduction is within 1206 specification tolerance and does not affect PCB footprint compatibility. The 0.75W power rating provides maximum dissipation capability among substitute options.

Q: Do all substitute parts meet automotive requirements?

A: Yes. ESR18EZPF3900, ERJ-P08J391V, and CRCW1206390RJNEAHP all carry AEC-Q200 automotive qualification and ROHS3 compliance, matching the main part ESR18EZPJ391. All operate across -55°C to 155°C and maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute offers the best tolerance specification?

A: ESR18EZPF3900 provides ±1% tolerance with ±100ppm/°C temperature coefficient, representing the tightest specifications among all options. This upgrade is recommended for precision analog circuits requiring enhanced accuracy. Both ERJ-P08J391V and CRCW1206390RJNEAHP maintain ±5% tolerance matching the main part.

Q: Are there inventory considerations for substitute selection?

A: ERJ-P08J391V offers highest current availability at 7990 units. ESR18EZPF3900 provides 4689 units. CRCW1206390RJNEAHP has limited inventory at 746 units. For immediate procurement, ERJ-P08J391V is preferred. For long-term supply planning, all three substitutes maintain active production status.