ESR18EZPJ912 Equivalent & Substitute Parts

Part Overview

The ESR18EZPJ912 is a 9.1 kOhms ±5% 0.5W thick film chip resistor in 1206 (3216 Metric) package manufactured by Rohm Semiconductor. This component is designed for automotive applications and carries AEC-Q200 qualification with pulse withstanding capability. The part is currently active in production with 630 pieces available in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to supply constraints, inventory availability, or design flexibility within the same functional category.

Substiute Parts

ESR18EZPJ912

Rohm SemiconductorIn Stock: 684ESR18EZPJ912 Datasheet

Current PartRFQ

ERJ-P08J912V

Panasonic Electronic ComponentsIn Stock: 1390ERJ-P08J912V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ESR18EZPJ912 with the ERJ-P08J912V is permissible based on the following criteria:

Matching Parameters:

• Resistance value: 9.1 kOhms (identical)
• Tolerance: ±5% (identical)
• Package / Case: 1206 (3216 Metric) (identical)
• Composition: Thick Film (identical)
• Temperature Coefficient: ±200ppm/°C (identical)
• Operating Temperature Range: -55°C ~ 155°C (identical)
• Automotive Rating: AEC-Q200 (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Allowable Variation:

• Power Rating: The substitute part (ERJ-P08J912V) is rated at 0.667W (2/3W), which exceeds the original 0.5W (1/2W) specification. Higher power rating is acceptable in substitution as it provides equal or greater capability within the same package footprint.
• Height - Seated (Max): Original 0.026" (0.65mm) vs. Substitute 0.028" (0.70mm). This minor dimensional variation remains within typical PCB assembly tolerances for 1206 package components.

Parameter Comparison

Engineering Selection Recommendations

Both the ESR18EZPJ912 and ERJ-P08J912V are active production components with identical automotive AEC-Q200 qualification and ROHS3 compliance. The ERJ-P08J912V provides a higher power rating (0.667W vs. 0.5W) within the same 1206 package footprint, making it suitable for applications where the original specification can accommodate increased power dissipation capability. The minimal height difference (0.002" / 0.05mm) is within standard PCB assembly tolerances and does not present mechanical compatibility issues. Selection between these parts should be based on availability, supply chain requirements, and design margin considerations for power dissipation in the target application.

Frequently Asked Questions (FAQ)

Q: Can ERJ-P08J912V replace ESR18EZPJ912 in automotive applications? A: Yes. Both components carry AEC-Q200 qualification, operate across the identical temperature range (-55°C ~ 155°C), and share matching resistance, tolerance, and composition specifications. The higher power rating of the substitute part does not compromise compatibility.

Q: What is the significance of the power rating difference? A: The ERJ-P08J912V is rated at 0.667W compared to the original 0.5W. This represents increased power dissipation capability within the same physical package. If the circuit design requires only 0.5W or less, the substitute part will operate well within its thermal limits. If the circuit requires higher power dissipation, the substitute part provides additional margin.

Q: Are there any PCB layout considerations due to the height difference? A: The height difference is 0.002" (0.05mm), which is negligible for standard PCB assembly processes. Both components use the same 1206 (3216 Metric) footprint and will mount identically on the PCB.

Q: Do both parts meet the same compliance standards? A: Yes. Both ESR18EZPJ912 and ERJ-P08J912V are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity level (MSL 1 - Unlimited). They are functionally equivalent from a regulatory and environmental standpoint.

Q: What determines substitutability for 1206 thick film resistors? A: Substitutability is determined by matching resistance value, tolerance, package footprint, composition type, temperature coefficient, operating temperature range, and automotive qualification level. Power rating can be higher in the substitute part without affecting compatibility.