ESR25JZPJ124 Equivalent & Substitute Parts

Part Overview

The ESR25JZPJ124 is a 120 kOhms ±5% thick film chip resistor manufactured by Rohm Semiconductor in the 1210 (3225 Metric) package. Rated for 0.667W (2/3W) power dissipation, this component meets automotive AEC-Q200 qualification and features pulse withstanding capability. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or inventory depletion. Alternative qualified parts with matching electrical and mechanical specifications ensure design continuity and manufacturing schedule adherence.

Substiute Parts

ESR25JZPJ124

Rohm SemiconductorIn Stock: 1056ESR25JZPJ124 Datasheet

Current PartRFQ

ERJ-P14J124U

Panasonic Electronic ComponentsIn Stock: 10884ERJ-P14J124U Datasheet

DirectRFQ

ERJ-14YJ124U

Panasonic Electronic ComponentsIn Stock: 9664ERJ-14YJ124U Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ESR25JZPJ124 is determined by strict alignment with the following parameters:

• Resistance value: 120 kOhms (exact match required)
• Tolerance: ±5% (exact match required)
• Package: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±200ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)
• Automotive Rating: AEC-Q200 (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (exact match required)

The substitute parts identified below meet all these criteria. Power rating variations (0.5W vs. 0.667W) are noted but do not disqualify substitution when the application circuit design accommodates the lower rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: ERJ-P14J124U (Panasonic Electronic Components)

The ERJ-P14J124U is the preferred direct substitute for the ESR25JZPJ124. Both components maintain active production status, ensuring long-term availability and supply chain stability. This part carries identical electrical specifications, AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating. The 0.5W power rating is lower than the original 0.667W specification; however, this substitution is valid when circuit design analysis confirms that actual power dissipation at the resistor does not exceed 0.5W under all operating conditions including worst-case scenarios.

Secondary Substitute: ERJ-14YJ124U (Panasonic Electronic Components)

The ERJ-14YJ124U meets all electrical and mechanical substitution criteria but carries a "Not For New Designs" product status designation. This part is suitable only for sustaining production of existing designs or as a temporary solution during supply constraints. New design implementations should prioritize the ERJ-P14J124U to ensure long-term component availability and manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can ERJ-P14J124U be used as a direct replacement for ESR25JZPJ124?

A: Yes. Both parts share identical resistance (120 kOhms), tolerance (±5%), package (1210), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C to 155°C), automotive rating (AEC-Q200), RoHS status (ROHS3), and moisture sensitivity level (MSL 1). The power rating difference (0.5W vs. 0.667W) requires circuit-level power dissipation analysis to confirm compatibility.

Q: What is the significance of the power rating difference between ESR25JZPJ124 (0.667W) and the substitute parts (0.5W)?

A: Power rating indicates the maximum continuous power the resistor can safely dissipate without exceeding temperature limits. A lower-rated substitute is acceptable if actual circuit power dissipation remains below 0.5W under all operating conditions. If circuit analysis shows power dissipation exceeds 0.5W, the substitute is not suitable.

Q: Why is ERJ-14YJ124U marked "Not For New Designs"?

A: This designation indicates the manufacturer is phasing out the part in favor of newer alternatives. While electrically and mechanically equivalent, this part should not be selected for new product designs. Use ERJ-P14J124U instead to ensure long-term availability and manufacturer support.

Q: Are the physical dimensions identical between all three parts?

A: The package designation (1210 / 3225 Metric) is identical, and length and width dimensions match (0.126" L x 0.098" W / 3.20mm x 2.50mm). The seated height differs slightly: ESR25JZPJ124 is 0.026" (0.65mm) maximum, while both Panasonic parts are 0.028" (0.70mm) maximum. This minor height difference is typically acceptable in standard PCB assembly processes but should be confirmed for applications with tight vertical clearance constraints.

Q: Do all substitute parts maintain AEC-Q200 automotive qualification?

A: Yes. Both ERJ-P14J124U and ERJ-14YJ124U carry AEC-Q200 qualification, meeting automotive reliability and quality standards equivalent to the original ESR25JZPJ124.