RC1005F304CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F304CS is a 300 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.063W (1/16W) in 0402 (1005 Metric) surface mount package. This component is classified as Active product status with moisture resistant characteristics and unlimited moisture sensitivity level (MSL 1). The RC1005F304CS is designed for general-purpose applications requiring precision resistive elements in compact form factors. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, termination count), and environmental ratings (operating temperature range, RoHS compliance, REACH status).

Substiute Parts

RC1005F304CS

Samsung Electro-MechanicsIn Stock: 1055RC1005F304CS Datasheet

Current PartRFQ

CR0402-FX-3003GLF

Bourns Inc.In Stock: 47478CR0402-FX-3003GLF Datasheet

DirectRFQ

CRG0402F300K

TE Connectivity Passive ProductIn Stock: 19802CRG0402F300K Datasheet

DirectRFQ

RC0402FR-07300KL

YAGEOIn Stock: 312470RC0402FR-07300KL Datasheet

DirectRFQ

ERJ-2RKF3003X

Panasonic Electronic ComponentsIn Stock: 49612ERJ-2RKF3003X Datasheet

UpgradeRFQ

AC0402FR-07300KL

YAGEOIn Stock: 40482AC0402FR-07300KL Datasheet

SimilarRFQ

CRCW0402300KFKED

Vishay DaleIn Stock: 32972CRCW0402300KFKED Datasheet

SimilarRFQ

RMCF0402FT300K

Stackpole Electronics IncIn Stock: 102223RMCF0402FT300K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005F304CS are classified into three categories based on electrical and mechanical compatibility:

Direct Equivalents share identical electrical specifications (300 kOhms, ±1%, 0.063W, 0402 package, ±100ppm/°C, -55°C ~ 155°C operating range) and regulatory compliance (ROHS3, MSL 1). These parts are functionally interchangeable without circuit redesign or thermal recalculation.

Upgrade Substitutes maintain core electrical parameters (resistance, tolerance, package, temperature coefficient, operating range) but feature enhanced power rating (0.1W vs. 0.063W) or additional certifications (AEC-Q200 automotive qualification). These parts provide superior performance margins and are suitable for applications requiring automotive-grade reliability.

Similar Substitutes match all critical electrical and mechanical parameters but include additional features such as automotive AEC-Q200 certification or enhanced moisture resistance. These parts are compatible with the original specification and offer expanded application scope.

The following parameters determine substitution eligibility:

• Resistance value: 300 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package: 0402 (1005 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature: -55°C ~ 155°C (exact match or extended range acceptable)
• Power Rating: 0.063W minimum (equal or higher acceptable)
• Terminations: 2 (exact match required)
• RoHS/REACH Compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (CR0402-FX-3003GLF, CRG0402F300K, RC0402FR-07300KL) are suitable for applications where the original RC1005F304CS specification is required without modification. These parts maintain identical electrical performance, thermal characteristics, and regulatory compliance. Selection among direct equivalents is based on supplier availability, lead time, and packaging format (Tape & Reel vs. Cut Tape).

Upgrade Substitute (ERJ-2RKF3003X) provides enhanced thermal performance with 0.1W power rating compared to the 0.063W reference specification. This part includes Panasonic's AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability and extended thermal margin. The upgrade is appropriate when circuit design permits higher power dissipation capacity or when automotive supply chain qualification is mandated.

Similar Substitutes (AC0402FR-07300KL, CRCW0402300KFKED, RMCF0402FT300K) maintain the original 0.063W power rating while adding AEC-Q200 automotive certification. These parts are compatible with the reference specification and provide additional qualification for automotive applications. AC0402FR-07300KL additionally includes moisture resistant features matching the original part. Selection is based on application requirements for automotive qualification and supplier inventory availability.

All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility with the original specification. Operating temperature range (-55°C ~ 155°C), temperature coefficient (±100ppm/°C), and MSL rating (1 - Unlimited) are identical across all listed parts, confirming environmental and reliability equivalence.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-3003GLF directly replace RC1005F304CS without circuit modification?

A: Yes. CR0402-FX-3003GLF is a direct equivalent with identical electrical specifications (300 kOhms ±1%, 0.063W), package (0402), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and regulatory compliance (ROHS3, MSL 1). No circuit redesign is required.

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

A: Direct equivalents match all electrical and mechanical parameters of the reference part. Upgrade substitutes (ERJ-2RKF3003X) provide enhanced power rating (0.1W vs. 0.063W) and automotive AEC-Q200 certification, offering superior thermal margin and automotive-grade reliability while maintaining core electrical specifications.

Q: Are similar substitutes with AEC-Q200 certification compatible with non-automotive applications?

A: Yes. Similar substitutes (AC0402FR-07300KL, CRCW0402300KFKED, RMCF0402FT300K) maintain all electrical and mechanical specifications of the reference part. AEC-Q200 certification indicates enhanced qualification testing and reliability; these parts are fully compatible with general-purpose applications and provide additional performance assurance.

Q: Does the moisture resistant feature of RC0402FR-07300KL provide functional advantage over CR0402-FX-3003GLF?

A: Both parts have identical MSL rating (1 - Unlimited), indicating unlimited moisture handling capability. The moisture resistant feature designation in RC0402FR-07300KL and RC1005F304CS indicates manufacturing process characteristics but does not alter functional compatibility. Selection between these direct equivalents is based on supplier availability and packaging preference.

Q: Can ERJ-2RKF3003X be used in applications designed for 0.063W power rating?

A: Yes. ERJ-2RKF3003X with 0.1W power rating is a thermal upgrade suitable for applications originally specified at 0.063W. The higher power rating provides additional thermal margin and does not create incompatibility. This substitution is appropriate when enhanced reliability or thermal performance is desired.

Q: What packaging formats are available for these substitute parts?

A: Direct equivalents and similar substitutes are available in Tape & Reel (TR) format, standard for automated assembly. RC0402FR-07300KL is available in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on assembly process requirements and supplier inventory.

Q: Are all listed substitute parts compliant with ROHS3 and REACH regulations?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the regulatory compliance of the reference part RC1005F304CS. No additional compliance verification is required for regulatory applications.

Q: What is the significance of ±100ppm/°C temperature coefficient across all parts?

A: Temperature coefficient ±100ppm/°C indicates resistance value stability over the operating temperature range (-55°C ~ 155°C). This specification is identical across all reference and substitute parts, confirming equivalent temperature performance and circuit stability characteristics.