RC5025F1151CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025F1151CS is a 1.15 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2010 (5025 Metric) package format. This component is rated for 0.667W (2/3W) power dissipation with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 729 units currently in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. Alternative sources become necessary for supply chain continuity, extended lead time mitigation, or design flexibility across manufacturing partners.

Substiute Parts

RC5025F1151CS

Samsung Electro-MechanicsIn Stock: 803RC5025F1151CS Datasheet

Current PartRFQ

CRCW20101K15FKEF

Vishay DaleIn Stock: 4826CRCW20101K15FKEF Datasheet

SimilarRFQ

ERJ-12SF1151U

Panasonic Electronic ComponentsIn Stock: 7614ERJ-12SF1151U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025F1151CS is determined by strict adherence to the following parameters:

Mandatory Matching Criteria:

• Resistance value: 1.15 kOhms (exact match required)
• Tolerance: ±1% (substitute tolerance must equal or exceed this specification)
• Package format: 2010 (5025 Metric) (physical and electrical footprint compatibility)
• Composition: Thick Film (material technology must remain consistent)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

Performance Parameters (Must Meet or Exceed):

• Power rating: Substitute must support minimum 0.667W dissipation
• Temperature coefficient: ±100ppm/°C or better
• Operating temperature range: -55°C to 155°C minimum
• Moisture sensitivity: MSL 1 or better

Identified Substitutes: Two parts meet all substitution criteria for the RC5025F1151CS:

1. CRCW20101K15FKEF (Vishay Dale) – Exceeds power rating at 0.75W; maintains all electrical and mechanical specifications
2. ERJ-12SF1151U (Panasonic Electronic Components) – Exceeds power rating at 0.75W; maintains all electrical and mechanical specifications

Both substitutes provide equivalent or superior electrical performance while maintaining identical package geometry and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CRCW20101K15FKEF (Vishay Dale)

This part is the preferred substitute for new designs and ongoing production. It maintains Active product status, ensuring long-term availability and manufacturer support. The CRCW20101K15FKEF exceeds the power rating specification at 0.75W, providing additional thermal margin over the original 0.667W requirement. Automotive AEC-Q200 qualification provides enhanced reliability documentation. All electrical parameters, package dimensions, and compliance certifications align with or exceed the RC5025F1151CS specification.

Secondary Substitute: ERJ-12SF1151U (Panasonic Electronic Components)

This part meets all electrical and mechanical substitution criteria with identical performance characteristics to the CRCW20101K15FKEF. However, the ERJ-12SF1151U carries a "Not For New Designs" product status designation. This classification indicates that Panasonic has discontinued active development and marketing of this component line. While existing inventory (7590 units) is available, this part should be reserved for legacy system maintenance, repair operations, or applications where design freeze requirements mandate component consistency with existing production runs.

Selection Logic:

• For new product designs: Select CRCW20101K15FKEF
• For legacy system support: ERJ-12SF1151U remains functionally equivalent
• For supply chain redundancy: Maintain qualified status for both parts

Frequently Asked Questions (FAQ)

Q: Can CRCW20101K15FKEF be used as a direct replacement for RC5025F1151CS in existing designs?

A: Yes. The CRCW20101K15FKEF is electrically and mechanically compatible. Both parts share identical resistance (1.15 kOhms), tolerance (±1%), package format (2010/5025 Metric), composition (thick film), and operating temperature range (-55°C to 155°C). The substitute's 0.75W power rating exceeds the original 0.667W specification, providing additional thermal headroom. Physical dimensions are equivalent within manufacturing tolerances (height difference: 0.028" vs 0.026" maximum seated height).

Q: What is the significance of the "Not For New Designs" status on ERJ-12SF1151U?

A: This designation indicates that Panasonic has transitioned this product line away from active development. While the part remains functionally equivalent and inventory is currently available (7590 units), the manufacturer does not recommend its use in new product development. This status typically precedes eventual discontinuation. The part remains suitable for repair, maintenance, and legacy system applications where design specifications require component consistency with existing production.

Q: Are there any height or footprint differences that would affect PCB layout?

A: The RC5025F1151CS has a maximum seated height of 0.026" (0.66mm), while both substitutes (CRCW20101K15FKEF and ERJ-12SF1151U) have a maximum seated height of 0.028" (0.70mm). This 0.002" (0.04mm) difference is within standard PCB assembly tolerances and does not require layout modification. All three parts maintain identical length (0.197" / 5.00mm) and width (0.098" / 2.50mm) dimensions, ensuring footprint compatibility.

Q: Do the substitute parts maintain the same moisture resistance characteristics?

A: Yes. All three parts carry Moisture Sensitivity Level (MSL) 1 classification, indicating unlimited shelf life without moisture control requirements. The RC5025F1151CS is specified as "Moisture Resistant" in composition. Both substitutes maintain equivalent moisture performance through identical MSL rating and thick film construction.

Q: What compliance certifications apply to each part?

A: All three parts are ROHS3 Compliant and REACH Unaffected. The CRCW20101K15FKEF carries additional Automotive AEC-Q200 qualification, indicating enhanced reliability testing and suitability for automotive applications. The ERJ-12SF1151U also carries AEC-Q200 qualification. The RC5025F1151CS does not list automotive qualification but meets all baseline compliance requirements.

Q: Can these parts be used interchangeably in the same circuit without performance degradation?

A: Yes, within the specified operating parameters. All three parts deliver identical electrical performance at the 1.15 kOhms ±1% specification with ±100ppm/°C temperature coefficient. The substitute parts' higher power ratings (0.75W vs 0.667W) do not introduce performance degradation; they provide additional thermal margin. Temperature coefficient and operating range are identical across all three parts.