RC3225F2742CS Equivalent & Substitute Parts

Part Overview

The RC3225F2742CS is a 27.4 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and resistance value, allowing for direct board-level replacement in applications where the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

RC3225F2742CS

Samsung Electro-MechanicsIn Stock: 838RC3225F2742CS Datasheet

Current PartRFQ

CRCW121027K4FKEA

Vishay DaleIn Stock: 10635CRCW121027K4FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC3225F2742CS are identified based on strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Resistance Value: 27.4 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 1210 (3225 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 exceed the original 0.333W specification, provided the higher power rating does not introduce incompatibility with the application circuit design or thermal management requirements.
• Packaging Format: Original packaging format (bulk or tape & reel) may differ between main part and substitute without affecting electrical or mechanical compatibility.
• Manufacturer: Different manufacturers are acceptable provided all electrical and mechanical specifications align.

The CRCW121027K4FKEA from Vishay Dale meets all mandatory matching parameters and exceeds the power rating specification at 0.5W (1/2W), making it a valid substitute for the RC3225F2742CS.

Parameter Comparison

Engineering Selection Recommendations

The CRCW121027K4FKEA is a direct substitute for the RC3225F2742CS based on electrical and mechanical equivalence. Both components are Active product status with full RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current and future applications.

The Vishay Dale CRCW121027K4FKEA incorporates AEC-Q200 automotive qualification, which provides additional reliability assurance beyond the base specification. The higher power rating of 0.5W (1/2W) compared to the original 0.333W (1/3W) specification represents a design margin increase and does not introduce incompatibility when substituted in circuits designed for the original part.

Physical dimensions remain compatible within the 1210 package footprint, with maximum seated height of 0.024" (0.60mm) for the substitute compared to 0.026" (0.66mm) for the original, confirming PCB assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CRCW121027K4FKEA be used as a direct replacement for the RC3225F2742CS on existing PCBs?

A: Yes. Both components share identical resistance value (27.4 kOhms), tolerance (±1%), package footprint (1210 / 3225 Metric), and all critical electrical parameters. The substitute component fits within the same PCB pad layout and solder reflow profile requirements.

Q: What is the significance of the higher power rating on the substitute part?

A: The CRCW121027K4FKEA is rated at 0.5W (1/2W) compared to the original 0.333W (1/3W). This higher power rating provides additional thermal margin and does not create incompatibility. The substitute can safely operate in any application designed for the original part without derating considerations.

Q: Are there compliance or certification differences between these parts?

A: Both components are RoHS3 compliant and REACH unaffected. The CRCW121027K4FKEA carries additional AEC-Q200 automotive qualification, which is a superset qualification that does not restrict use in non-automotive applications.

Q: Do the physical dimensions differ between the main part and substitute?

A: Both components conform to the 1210 (3225 Metric) package standard. Maximum seated heights are 0.026" (0.66mm) for the RC3225F2742CS and 0.024" (0.60mm) for the CRCW121027K4FKEA. These minor variations remain within standard PCB assembly tolerances and do not affect placement or reflow compatibility.

Q: What packaging formats are available for each part?

A: The RC3225F2742CS is available in standard packaging format. The CRCW121027K4FKEA is supplied in Tape & Reel (TR) format. Both formats are compatible with automated assembly equipment and do not affect component electrical or mechanical performance.

Q: Are the temperature coefficients identical?

A: Yes. Both components specify ±100ppm/°C temperature coefficient and operate across the identical temperature range of -55°C to 155°C, ensuring equivalent performance stability across environmental conditions.

Q: Can these parts be intermixed in production?

A: Yes. The electrical and mechanical equivalence of these components allows for interchangeable use in production environments. Both parts meet identical functional requirements and compliance standards.