RC1005F3012CS Equivalent & Substitute Parts

Part Overview

The RC1005F3012CS is a 30.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 0402 (1005 Metric) package format. This surface mount device is rated for 0.063W (1/16W) power dissipation and features moisture-resistant construction. The part is currently in active production status with 1,139 units in stock. Equivalent and substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and application-specific requirements such as automotive qualification or enhanced power ratings.

Substiute Parts

RC1005F3012CS

Samsung Electro-MechanicsIn Stock: 1242RC1005F3012CS Datasheet

Current PartRFQ

CR0402-FX-3012GLF

Bourns Inc.In Stock: 81505CR0402-FX-3012GLF Datasheet

DirectRFQ

RC0402FR-0730K1L

YAGEOIn Stock: 572952RC0402FR-0730K1L Datasheet

DirectRFQ

ERJ-2RKF3012X

Panasonic Electronic ComponentsIn Stock: 212646ERJ-2RKF3012X Datasheet

UpgradeRFQ

AC0402FR-0730K1L

YAGEOIn Stock: 15224AC0402FR-0730K1L Datasheet

SimilarRFQ

CRCW040230K1FKED

Vishay DaleIn Stock: 8818CRCW040230K1FKED Datasheet

SimilarRFQ

CRCW040230K1FKTD

Vishay DaleIn Stock: 39734CRCW040230K1FKTD Datasheet

SimilarRFQ

RMCF0402FT30K1

Stackpole Electronics IncIn Stock: 207017RMCF0402FT30K1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F3012CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 30.1 kOhms
• Tolerance: ±1%
• Package / Case: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Power rating: 0.063W (1/16W) or higher
• Manufacturer: Different manufacturers permitted
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel®
• Additional certifications: Automotive AEC-Q200 qualification is permissible as an upgrade feature

Substitute parts are classified into three categories: Direct equivalents (identical specifications), upgrades (enhanced power rating or certifications), and similar alternatives (additional automotive qualification).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications): CR0402-FX-3012GLF (Bourns Inc.) and RC0402FR-0730K1L (YAGEO) are direct functional equivalents to the RC1005F3012CS. Both maintain identical resistance, tolerance, power rating, package, and temperature characteristics. CR0402-FX-3012GLF offers the highest inventory availability at 81,447 units. RC0402FR-0730K1L includes moisture-resistant construction matching the original part and provides 572,851 units in stock.

Upgrade Option (Enhanced Power Rating): ERJ-2RKF3012X (Panasonic Electronic Components) provides a 0.1W (1/10W) power rating upgrade while maintaining all other electrical specifications. This part includes Automotive AEC-Q200 qualification and ROHS3 compliance, with 212,555 units available. Selection of this upgrade is appropriate for applications requiring higher thermal margin or automotive-grade reliability.

Automotive-Qualified Alternatives: AC0402FR-0730K1L (YAGEO), CRCW040230K1FKED (Vishay Dale), and RMCF0402FT30K1 (Stackpole Electronics Inc) all feature Automotive AEC-Q200 certification with ROHS3 compliance. These parts are suitable for automotive applications requiring qualification documentation. RMCF0402FT30K1 offers the highest inventory at 206,978 units among automotive-qualified options.

Non-Compliant Alternative: CRCW040230K1FKTD (Vishay Dale) is RoHS non-compliant and REACH-affected. This part is not suitable for applications requiring ROHS3 compliance and should be avoided unless legacy system compatibility is explicitly required.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC1005F3012CS with any of the listed alternatives without circuit redesign?

A: Yes, all ROHS3-compliant alternatives listed maintain identical electrical specifications (30.1 kOhms ±1%, ±100ppm/°C, -55°C ~ 155°C operating range) and the same 0402 package footprint. Direct substitution is electrically and mechanically compatible. CRCW040230K1FKTD is excluded due to RoHS non-compliance.

Q: What is the difference between the direct equivalents and the upgrade option?

A: Direct equivalents (CR0402-FX-3012GLF and RC0402FR-0730K1L) match the original 0.063W power rating. The upgrade option (ERJ-2RKF3012X) provides 0.1W power rating, allowing operation at higher power dissipation levels. The upgrade is backward-compatible for applications not requiring the higher power capability.

Q: Are automotive-qualified parts suitable for non-automotive applications?

A: Yes. Automotive AEC-Q200 qualified parts (AC0402FR-0730K1L, CRCW040230K1FKED, RMCF0402FT30K1) meet or exceed standard commercial specifications and are suitable for any application. Automotive qualification represents additional testing and reliability assurance.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Both packaging formats contain identical components. Tape & Reel (TR) is supplied on continuous tape for automated assembly equipment. Cut Tape (CT) & Digi-Reel® provides smaller quantities on cut tape segments. Selection depends on production volume and assembly equipment compatibility.

Q: Why is CRCW040230K1FKTD listed if it is not RoHS compliant?

A: CRCW040230K1FKTD is included for reference in legacy system applications where RoHS compliance is not required. For new designs and applications requiring regulatory compliance, ROHS3-compliant alternatives must be selected.

Q: Can I use a higher power-rated resistor in place of the original 0.063W part?

A: Yes. The ERJ-2RKF3012X (0.1W rating) is electrically and mechanically compatible. Higher power ratings provide additional thermal margin without affecting circuit performance. Physical dimensions remain identical within the 0402 package specification.

Q: What inventory levels should I consider for production planning?

A: RC0402FR-0730K1L (YAGEO) offers the highest availability at 572,851 units. CR0402-FX-3012GLF (Bourns) provides 81,447 units. For automotive-qualified options, RMCF0402FT30K1 (Stackpole) offers 206,978 units. Original part RC1005F3012CS has 1,139 units in stock.