RCS2012F2552CS Equivalent & Substitute Parts Reference

Part Overview

The RCS2012F2552CS is a 25.5 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.125W (1/8W) in 0805 (2012 Metric) package format. This component features anti-sulfur and moisture-resistant construction with a temperature coefficient of ±100ppm/°C and operating range of -55°C to 155°C. The part maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct circuit board replacement capability.

Substiute Parts

RCS2012F2552CS

Samsung Electro-MechanicsIn Stock: 937RCS2012F2552CS Datasheet

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CRCW080525K5FKEA

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CRCW080525K5FKEAHP

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ERJ-6ENF2552V

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RC0805FR-0725K5L

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RMCF0805FT25K5

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RCS2012F2552CS are classified into two functional groups based on power rating compatibility:

Group 1: Direct Equivalents (0.125W / 1/8W Rating) Parts in this group maintain identical electrical and thermal specifications to the main part. Substitution within this group requires matching: resistance value (25.5 kOhms), tolerance (±1%), power rating (0.125W), package format (0805), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All Group 1 parts are ROHS3 compliant with MSL 1 rating.

Group 2: Higher Power Rating (0.5W / 1/2W Rating) Parts in this group provide increased power dissipation capability while maintaining all other electrical parameters. These parts are suitable for applications requiring higher thermal headroom but occupy the same physical footprint (0805). Substitution to Group 2 requires circuit design verification to confirm the higher power rating does not introduce thermal management changes.

The critical parameters determining substitution eligibility are: resistance value, tolerance, package dimensions, and operating temperature range. Packaging format (Tape & Reel vs. Cut Tape) does not affect electrical substitution but impacts procurement and assembly logistics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (0.125W Applications): RC0805FR-0725K5L, AC0805FR-0725K5L, RMCF0805FT25K5, ERJ-6ENF2552V, and CRCW080525K5FKEA are electrically and mechanically equivalent to RCS2012F2552CS. All maintain identical resistance, tolerance, power rating, package dimensions, and operating temperature specifications. Selection among these parts should be based on: (1) availability and lead time requirements, (2) automotive qualification status (AC0805FR-0725K5L, RMCF0805FT25K5, ERJ-6ENF2552V, and CRCW080525K5FKEA carry AEC-Q200 certification), and (3) packaging format preference (Tape & Reel or Cut Tape).

For Higher Power Dissipation (0.5W Applications): RCS080525K5FKEA and CRCW080525K5FKEAHP provide 0.5W power rating while maintaining all other electrical parameters. These parts are suitable only for applications where circuit design permits the higher power rating. Both parts carry Automotive AEC-Q200 certification and pulse withstanding capability. Selection between these two should be based on availability and supplier preference.

Compliance Considerations: All substitute parts maintain ROHS3 compliance, unlimited MSL rating, and -55°C to 155°C operating temperature range. Automotive applications should prioritize parts with AEC-Q200 certification: AC0805FR-0725K5L, RMCF0805FT25K5, ERJ-6ENF2552V, RCS080525K5FKEA, and CRCW080525K5FKEAHP.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-0725K5L be used as a direct replacement for RCS2012F2552CS? A: Yes. RC0805FR-0725K5L matches all critical electrical parameters: 25.5 kOhms resistance, ±1% tolerance, 0.125W power rating, 0805 package, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Both are ROHS3 compliant with MSL 1 rating. The primary difference is packaging format (Tape & Reel for both) and feature set (RC0805FR-0725K5L includes moisture resistance without anti-sulfur specification).

Q: What is the difference between 0.125W and 0.5W rated parts? A: Power rating indicates maximum continuous power dissipation capability. A 0.5W part (RCS080525K5FKEA, CRCW080525K5FKEAHP) can dissipate four times more power than a 0.125W part while maintaining the same physical dimensions. Selection depends on circuit current and voltage requirements. Substituting a 0.125W part with a 0.5W part is acceptable if circuit design permits; the reverse substitution is not acceptable.

Q: Are AEC-Q200 certified parts required for all applications? A: AEC-Q200 certification is required only for automotive applications. For industrial or consumer applications, non-certified equivalents (RC0805FR-0725K5L, RCS2012F2552CS) are acceptable. AEC-Q200 certified alternatives include AC0805FR-0725K5L, RMCF0805FT25K5, ERJ-6ENF2552V, CRCW080525K5FKEA, RCS080525K5FKEA, and CRCW080525K5FKEAHP.

Q: Does packaging format (Tape & Reel vs. Cut Tape) affect electrical performance? A: No. Packaging format affects only procurement, storage, and assembly logistics. Tape & Reel packaging is standard for high-volume automated assembly; Cut Tape & Digi-Reel is suitable for lower-volume or mixed-component orders. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: What is the significance of the 0805 (2012 Metric) package designation? A: The 0805 designation indicates physical dimensions of 0.079" length × 0.049" width (2.00mm × 1.25mm). All substitute parts listed maintain these identical dimensions, ensuring mechanical compatibility with existing PCB footprints and assembly equipment. Height variations (0.020" to 0.028" seated height) are within standard tolerance and do not affect substitution eligibility.

Q: Can parts with different temperature coefficients be substituted? A: All listed substitute parts maintain ±100ppm/°C temperature coefficient, matching the main part specification. Substitution with parts having different temperature coefficients is not permitted, as this would alter circuit performance across the operating temperature range.

Q: What does MSL 1 (Unlimited) rating mean? A: MSL 1 indicates unlimited shelf life and no moisture bake-out requirement before soldering. All listed parts carry MSL 1 rating, eliminating moisture sensitivity concerns during storage and assembly.