RC5025J112CS Equivalent & Substitute Parts Reference

Part Overview

The RC5025J112CS is a 1.1 kOhms ±5% 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 classified as Active product status and features moisture-resistant construction with ROHS3 compliance.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the same package footprint and operating specifications. Alternative sources become necessary due to inventory availability, lead time requirements, or application-specific certifications such as automotive qualification.

Substiute Parts

RC5025J112CS

Samsung Electro-MechanicsIn Stock: 825RC5025J112CS Datasheet

Current PartRFQ

CRCW20101K10FKEF

Vishay DaleIn Stock: 4767CRCW20101K10FKEF Datasheet

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ERJ-12SF1101U

Panasonic Electronic ComponentsIn Stock: 14881ERJ-12SF1101U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC5025J112CS is determined by the following mandatory criteria:

Electrical Compatibility Requirements:

• Resistance value: 1.1 kOhms (exact match required)
• Package / Case: 2010 (5025 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Operating temperature range: -55°C ~ 155°C minimum (equal or exceeding)
• Temperature coefficient: ±100ppm/°C (equal or better tolerance acceptable)

Mechanical Compatibility Requirements:

• Surface mount chip resistor format
• Two terminations
• Physical dimensions compatible with 2010 footprint

Compliance Requirements:

• ROHS3 Compliant status
• REACH Unaffected status

Tolerance and Power Rating Considerations: Substitute parts may feature improved tolerance (±1% versus ±5%) and higher power ratings (0.75W versus 0.667W). These represent performance enhancements and do not restrict substitution eligibility. Parts with lower tolerance specifications or reduced power ratings are not acceptable substitutes.

Parameter Comparison

Engineering Selection Recommendations

CRCW20101K10FKEF (Vishay Dale): This substitute part maintains full electrical and mechanical compatibility with the RC5025J112CS. The CRCW20101K10FKEF offers improved tolerance specification (±1% versus ±5%) and increased power rating (0.75W versus 0.667W), representing performance enhancement without functional compromise. The part carries Active product status and AEC-Q200 automotive qualification. This substitute is suitable for applications requiring enhanced precision or automotive-grade reliability.

ERJ-12SF1101U (Panasonic Electronic Components): This substitute part meets all electrical and mechanical compatibility requirements with the RC5025J112CS. The ERJ-12SF1101U provides ±1% tolerance and 0.75W power rating. However, this part is designated as Not For New Designs by the manufacturer. Selection of this substitute should be limited to legacy system maintenance, field replacement scenarios, or applications where existing design validation has been completed. For new product development, CRCW20101K10FKEF is the preferred alternative.

Frequently Asked Questions (FAQ)

Q: Can CRCW20101K10FKEF be used as a direct replacement for RC5025J112CS?

A: Yes. Both parts share identical resistance value (1.1 kOhms), package format (2010 / 5025 Metric), composition (thick film), and operating temperature range (-55°C ~ 155°C). The CRCW20101K10FKEF provides improved tolerance (±1%) and higher power rating (0.75W), which are compatible enhancements. Mechanical footprint and electrical performance are equivalent.

Q: What is the difference between ±5% and ±1% tolerance specifications?

A: Tolerance defines the maximum deviation of actual resistance value from the nominal specification. RC5025J112CS with ±5% tolerance allows actual values between 1.045 kOhms and 1.155 kOhms. CRCW20101K10FKEF with ±1% tolerance restricts actual values to 1.089 kOhms and 1.111 kOhms. Applications requiring tighter resistance accuracy should specify the ±1% substitute.

Q: Why is ERJ-12SF1101U marked as Not For New Designs?

A: Panasonic has discontinued active development and promotion of the ERJ-12SF1101U series. This designation indicates the manufacturer will not guarantee long-term availability or support for new product integrations. Existing inventory remains available for legacy applications and field service. New designs should utilize CRCW20101K10FKEF or equivalent active-status alternatives.

Q: Are there packaging differences between these substitute parts?

A: RC5025J112CS is supplied in standard packaging format. CRCW20101K10FKEF and ERJ-12SF1101U are supplied in Tape & Reel (TR) format. Both formats are compatible with automated assembly equipment. Tape & Reel packaging is standard for high-volume production environments and does not affect component functionality or performance.

Q: Can these parts be used interchangeably in automotive applications?

A: CRCW20101K10FKEF carries AEC-Q200 automotive qualification, meeting automotive industry reliability standards. RC5025J112CS and ERJ-12SF1101U do not specify automotive qualification. For automotive applications, CRCW20101K10FKEF is the qualified substitute. Non-automotive qualified parts may be used in non-automotive applications without restriction.

Q: What is the significance of Moisture Sensitivity Level 1?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. These parts can be stored indefinitely without desiccant packaging and do not require special handling or baking procedures prior to assembly. This classification applies to all three parts in this comparison.