RC5025F1213CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F1213CS is a 121 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format with a power rating of 0.667W (2/3W). This component is classified as Active product status and features moisture-resistant construction suitable for general industrial applications.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit higher power ratings or automotive-grade certifications. The parts listed below maintain electrical and mechanical compatibility within the defined parameter tolerances.

Substiute Parts

RC5025F1213CS

Samsung Electro-MechanicsIn Stock: 902RC5025F1213CS Datasheet

Current PartRFQ

CRCW2010121KFKEF

Vishay DaleIn Stock: 4910CRCW2010121KFKEF Datasheet

SimilarRFQ

ERJ-12SF1213U

Panasonic Electronic ComponentsIn Stock: 8745ERJ-12SF1213U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Mandatory Matching Parameters:

• Resistance Value: 121 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings (0.667W minimum)
• Features: Substitute parts may include additional certifications (e.g., Automotive AEC-Q200) without affecting base functionality
• Product Status: Active or Not For New Designs status does not disqualify substitution based on electrical compatibility

The two substitute parts listed below satisfy all mandatory matching parameters and are therefore electrically and mechanically interchangeable with the RC5025F1213CS.

Parameter Comparison

Engineering Selection Recommendations

CRCW2010121KFKEF (Vishay Dale) is the primary substitute option. This part maintains Active product status, ensuring continued availability and manufacturer support. The higher power rating of 0.75W provides additional thermal margin compared to the 0.667W specification of the RC5025F1213CS. Automotive AEC-Q200 certification indicates enhanced reliability testing and is compatible with general industrial applications. Packaging is Tape & Reel (TR) format with 4888 pieces in current inventory.

ERJ-12SF1213U (Panasonic Electronic Components) is a secondary substitute option. This part carries Not For New Designs status, indicating it is suitable for replacement and maintenance applications but not recommended for new product development. The electrical and mechanical parameters are identical to CRCW2010121KFKEF. Automotive AEC-Q200 certification is present. Packaging is Tape & Reel (TR) format with 8696 pieces in current inventory. Selection of this part should be limited to legacy system support or when supply of the primary substitute is constrained.

Both substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original RC5025F1213CS component.

Frequently Asked Questions (FAQ)

Q: Can CRCW2010121KFKEF or ERJ-12SF1213U be used as direct replacements for RC5025F1213CS in existing designs?

A: Yes. Both substitute parts match all mandatory electrical parameters (121 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C operating range) and physical package specifications (2010 / 5025 Metric). The higher power ratings (0.75W vs. 0.667W) do not create compatibility issues and provide additional thermal headroom.

Q: What is the significance of the height difference between RC5025F1213CS (0.66mm) and the substitute parts (0.70mm)?

A: The 0.04mm height difference is within typical manufacturing tolerances for thick film chip resistors in the 2010 package. This variation does not affect PCB assembly, solder reflow profiles, or electrical performance. Both dimensions are acceptable for standard surface-mount assembly processes.

Q: Why do the substitute parts carry Automotive AEC-Q200 certification while the original part lists only moisture resistance?

A: Automotive AEC-Q200 certification represents additional qualification testing beyond standard industrial specifications. This certification is compatible with general industrial applications and does not restrict use in non-automotive designs. The presence of AEC-Q200 indicates enhanced reliability and is not a limiting factor for substitution.

Q: Is ERJ-12SF1213U suitable for new product designs?

A: ERJ-12SF1213U carries Not For New Designs product status. This designation indicates the part is available for replacement and maintenance of existing systems but should not be selected for new product development. For new designs, CRCW2010121KFKEF is the recommended substitute, as it maintains Active product status.

Q: Are there any differences in packaging format between the main part and substitutes?

A: The RC5025F1213CS is supplied in standard packaging format (not specified in detail). Both CRCW2010121KFKEF and ERJ-12SF1213U are supplied in Tape & Reel (TR) format, which is standard for high-volume surface-mount assembly. This format difference does not affect component functionality or electrical performance.

Q: Do all three parts meet the same regulatory compliance standards?

A: Yes. RC5025F1213CS, CRCW2010121KFKEF, and ERJ-12SF1213U are all ROHS3 compliant and REACH unaffected. All three parts carry ECCN classification EAR99 and HTSUS code 8533.21.0030, indicating identical regulatory treatment for export and trade purposes.