RC5025F1542CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F1542CS is a 15.4 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated for 0.667W (2/3W) power dissipation in a 2010 (5025 Metric) surface mount package. This component is currently in active production status with 772 pieces available in inventory.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design requirements permit the use of functionally equivalent components with compatible electrical and mechanical specifications. The RC5025F1542CS has been identified with one primary substitute: the ERJ-12SF1542U from Panasonic Electronic Components.

Substiute Parts

RC5025F1542CS

Samsung Electro-MechanicsIn Stock: 825RC5025F1542CS Datasheet

Current PartRFQ

ERJ-12SF1542U

Panasonic Electronic ComponentsIn Stock: 21247ERJ-12SF1542U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F1542CS is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 15.4 kOhms (exact match required)
• Tolerance: ±1% (equivalent or tighter tolerance acceptable)
• Package / Case: 2010 (5025 Metric) (identical footprint required)
• Composition: Thick Film (same technology type)
• Temperature Coefficient: ±100ppm/°C (equivalent performance)
• Operating Temperature Range: -55°C ~ 155°C (minimum coverage required)
• Moisture Sensitivity Level: 1 (Unlimited) (equivalent or better)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Acceptable Variation:

• Power Rating: Substitute parts may have equal or higher power rating than 0.667W (2/3W). The ERJ-12SF1542U is rated at 0.75W (3/4W), which exceeds the minimum requirement and is therefore acceptable.

The ERJ-12SF1542U meets all mandatory matching criteria and exceeds the power rating requirement, making it a valid electrical and mechanical substitute for the RC5025F1542CS.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs: The RC5025F1542CS is the preferred choice as it maintains active production status. This part is suitable for new circuit designs and ongoing production runs where long-term availability and consistent supply are required.

For Substitute Applications: The ERJ-12SF1542U from Panasonic Electronic Components is electrically and mechanically compatible with the RC5025F1542CS. This substitute is qualified for use in existing designs where the RC5025F1542CS becomes unavailable. The ERJ-12SF1542U provides equivalent electrical performance with a higher power rating (0.75W versus 0.667W), ensuring adequate thermal margin in the application.

Product Status Consideration: The ERJ-12SF1542U carries a "Not For New Designs" status, indicating that Panasonic has designated this part for legacy or replacement applications only. New circuit designs should prioritize the RC5025F1542CS or other actively produced alternatives to ensure long-term supply continuity.

Compliance and Certifications: Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting standard regulatory and handling requirements for commercial and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-12SF1542U be used as a direct replacement for the RC5025F1542CS in existing PCB assemblies?

A: Yes. The ERJ-12SF1542U is mechanically and electrically compatible with the RC5025F1542CS. Both components share identical resistance value (15.4 kOhms), tolerance (±1%), package footprint (2010/5025 Metric), and operating temperature range (-55°C ~ 155°C). The substitute part's higher power rating (0.75W versus 0.667W) provides additional thermal capability without affecting circuit function.

Q: What is the significance of the "Not For New Designs" status on the ERJ-12SF1542U?

A: This designation indicates that Panasonic has discontinued active development and long-term production commitment for this part. While the ERJ-12SF1542U remains functionally suitable for replacement applications, it should not be selected for new circuit designs where long-term supply availability is critical. The RC5025F1542CS, with its "Active" status, is the appropriate choice for new designs.

Q: Are there dimensional differences between these two parts that could affect PCB layout?

A: The parts are dimensionally compatible for standard PCB applications. Both measure 0.197" L x 0.098" W (5.00mm x 2.50mm). The seated height differs slightly: RC5025F1542CS at 0.026" (0.66mm) maximum and ERJ-12SF1542U at 0.028" (0.70mm) maximum. This 0.002" (0.04mm) difference is negligible for typical PCB design clearances and does not require layout modification.

Q: Do both parts require identical handling and storage procedures?

A: Yes. Both the RC5025F1542CS and ERJ-12SF1542U carry MSL 1 (Unlimited) moisture sensitivity ratings, meaning they do not require special moisture-controlled storage or baking procedures prior to assembly. Standard commercial storage conditions are appropriate for both parts.

Q: What is the temperature coefficient specification and why does it matter?

A: Both parts specify ±100ppm/°C temperature coefficient, indicating that resistance value changes by approximately 100 parts per million for each degree Celsius change in operating temperature. This specification ensures predictable resistance stability across the -55°C ~ 155°C operating range and is critical for precision analog circuits where temperature-induced resistance drift must be controlled.

Q: Are there any regulatory or compliance differences between the RC5025F1542CS and ERJ-12SF1542U?

A: No. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for commercial and industrial electronics. Both carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications for export and tariff purposes.