RC3225F3481CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F3481CS is a 3.48 kOhms ±1% 1/3W chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 688 pieces in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

RC3225F3481CS

Samsung Electro-MechanicsIn Stock: 769RC3225F3481CS Datasheet

Current PartRFQ

CRCW12103K48FKEA

Vishay DaleIn Stock: 6145CRCW12103K48FKEA Datasheet

SimilarRFQ

RMCF1210FT3K48

Stackpole Electronics IncIn Stock: 1885RMCF1210FT3K48 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RC3225F3481CS is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

• Resistance value: 3.48 kOhms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Power Rating: The main part is rated 0.333W (1/3W). Substitute parts rated at 0.5W (1/2W) are acceptable as this represents a higher power capability within the same package footprint and does not reduce performance in applications requiring 0.333W or less.

Both identified substitute parts meet all critical parameters and maintain full compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

RC3225F3481CS (Samsung Electro-Mechanics) is the primary specification. This part is active in production with established supply (688 pieces in stock).

CRCW12103K48FKEA (Vishay Dale) is a direct substitute with higher power rating (0.5W vs 0.333W). This part carries AEC-Q200 automotive qualification and is supplied in Tape & Reel packaging. Inventory availability is 6108 pieces. The increased power rating provides design margin for applications operating at or below 0.333W.

RMCF1210FT3K48 (Stackpole Electronics Inc) is a direct substitute with higher power rating (0.5W vs 0.333W). This part carries AEC-Q200 automotive qualification and is supplied in Cut Tape packaging. Inventory availability is 1807 pieces. The increased power rating provides design margin for applications operating at or below 0.333W.

All three parts are ROHS3 compliant, MSL 1 rated, and maintain identical electrical performance within the specified tolerance and temperature range. Selection between parts depends on packaging format requirements (bulk, tape & reel, or cut tape) and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can CRCW12103K48FKEA or RMCF1210FT3K48 be used as direct replacements for RC3225F3481CS?

A: Yes. Both substitute parts maintain identical resistance (3.48 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), package (1210), and composition (thick film). The higher power rating (0.5W vs 0.333W) does not prevent substitution and provides additional thermal margin.

Q: What is the difference between the substitute parts?

A: CRCW12103K48FKEA and RMCF1210FT3K48 are electrically identical. The primary differences are manufacturer (Vishay Dale vs Stackpole Electronics), packaging format (Tape & Reel vs Cut Tape), and minor dimensional variations in height (0.024" vs 0.028" maximum seated height). Both carry AEC-Q200 automotive qualification.

Q: Are there packaging compatibility concerns?

A: The RC3225F3481CS is specified with packaging format "-" (not explicitly defined in source data). CRCW12103K48FKEA is supplied in Tape & Reel format; RMCF1210FT3K48 is supplied in Cut Tape format. Verify your assembly process requirements before selection.

Q: Do all three parts meet compliance requirements?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control. All carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the significance of AEC-Q200 qualification on the substitute parts?

A: AEC-Q200 is an automotive industry qualification standard. The substitute parts (CRCW12103K48FKEA and RMCF1210FT3K48) carry this qualification; the main part (RC3225F3481CS) does not list this certification. If AEC-Q200 qualification is required for your application, use one of the substitute parts.