RC1005F3093CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F3093CS is a 309 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device is rated at 0.063W (1/16W) power dissipation with moisture resistant construction and operates across the temperature 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 support component procurement flexibility and supply chain continuity.

Substiute Parts

RC1005F3093CS

Samsung Electro-MechanicsIn Stock: 903RC1005F3093CS Datasheet

Current PartRFQ

CR0402-FX-3093GLF

Bourns Inc.In Stock: 20335CR0402-FX-3093GLF Datasheet

DirectRFQ

RC0402FR-07309KL

YAGEOIn Stock: 195178RC0402FR-07309KL Datasheet

DirectRFQ

ERJ-2RKF3093X

Panasonic Electronic ComponentsIn Stock: 144502ERJ-2RKF3093X Datasheet

UpgradeRFQ

AC0402FR-07309KL

YAGEOIn Stock: 38464AC0402FR-07309KL Datasheet

SimilarRFQ

CRCW0402309KFKED

Vishay DaleIn Stock: 955017CRCW0402309KFKED Datasheet

SimilarRFQ

RMCF0402FT309K

Stackpole Electronics IncIn Stock: 65112RMCF0402FT309K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005F3093CS are classified based on electrical and mechanical parameter alignment. All substitute candidates maintain identical resistance value (309 kOhms), tolerance (±1%), package format (0402 / 1005 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The primary substitution criteria are:

Direct Equivalents: Parts matching all electrical specifications and power rating (0.063W / 1/16W) with identical mechanical dimensions and MSL rating.

Upgrade Substitutes: Parts with higher power rating (0.1W / 1/10W) that provide enhanced thermal performance while maintaining all other electrical and mechanical parameters.

Automotive-Qualified Substitutes: Parts with AEC-Q200 automotive qualification and identical or superior electrical specifications, suitable for applications requiring automotive-grade reliability.

All substitute parts maintain ROHS3 compliance, 2 terminations, and MSL 1 rating. Dimensional compatibility is confirmed across all candidates with maximum seated height of 0.016" (0.40mm) or less.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Equivalent Performance): CR0402-FX-3093GLF (Bourns Inc.), RC0402FR-07309KL (YAGEO), and the original RC1005F3093CS (Samsung Electro-Mechanics) are electrically and mechanically equivalent. All three maintain identical resistance, tolerance, power rating, package dimensions, and temperature characteristics. Selection among these three is based on inventory availability and supply chain requirements. RC0402FR-07309KL offers the highest inventory level (195,074 pcs) among direct equivalents.

Upgrade Substitution (Enhanced Thermal Performance): ERJ-2RKF3093X (Panasonic Electronic Components) provides a higher power rating of 0.1W (1/10W) compared to the 0.063W specification of the original part, while maintaining all other electrical parameters. This upgrade is suitable for applications requiring additional thermal margin or where component stress reduction is beneficial. AEC-Q200 automotive qualification is included.

Automotive-Grade Substitution (Enhanced Reliability): AC0402FR-07309KL (YAGEO), CRCW0402309KFKED (Vishay Dale), and RMCF0402FT309K (Stackpole Electronics Inc) incorporate AEC-Q200 automotive qualification while maintaining the original 0.063W power rating and all electrical specifications. These parts are suitable for applications requiring automotive-grade component reliability and traceability. AC0402FR-07309KL additionally includes moisture resistant construction matching the original part's feature set.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, confirming compatibility with standard PCB assembly processes and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-3093GLF be used as a direct replacement for RC1005F3093CS? A: Yes. Both parts share identical electrical specifications (309 kOhms ±1%), power rating (0.063W), package format (0402), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Mechanical dimensions and termination count are identical. The parts are directly interchangeable.

Q: What is the difference between RC0402FR-07309KL and RC1005F3093CS? A: Both parts are manufactured by YAGEO and share identical electrical and mechanical specifications. RC0402FR-07309KL is designated as part of the RC_L series and includes moisture resistant construction. The parts are functionally equivalent with no performance difference.

Q: Why would ERJ-2RKF3093X be selected over the original RC1005F3093CS? A: ERJ-2RKF3093X provides a higher power rating (0.1W versus 0.063W) while maintaining all other electrical parameters. This upgrade is selected when applications require additional thermal headroom or when component stress reduction is a design objective. The part also includes AEC-Q200 automotive qualification.

Q: Are automotive-qualified parts (AEC-Q200) compatible with non-automotive applications? A: Yes. Automotive-qualified parts meet or exceed the electrical and reliability requirements of standard industrial-grade components. AC0402FR-07309KL, CRCW0402309KFKED, and RMCF0402FT309K can be used in any application where the original RC1005F3093CS is specified. Automotive qualification represents enhanced quality assurance and traceability.

Q: Does the absence of "Moisture Resistant" designation in CR0402-FX-3093GLF affect compatibility? A: CR0402-FX-3093GLF maintains MSL 1 (Unlimited) rating identical to RC1005F3093CS, indicating equivalent moisture sensitivity performance. The absence of explicit "Moisture Resistant" feature designation does not indicate reduced moisture performance. Both parts are suitable for standard PCB assembly and storage environments.

Q: Can multiple substitute parts be mixed within a single assembly? A: Yes. All substitute parts maintain identical electrical specifications, package format, and mechanical dimensions. Mixing substitute parts within a single PCB assembly does not create compatibility or performance issues. However, design documentation should reflect the actual part numbers used.

Q: What inventory considerations apply when selecting substitute parts? A: CRCW0402309KFKED (Vishay Dale) offers the highest inventory level at 954,954 pcs. RC0402FR-07309KL (YAGEO) provides 195,074 pcs. For applications with extended lead time requirements or high-volume procurement, these parts offer superior supply chain availability compared to the original RC1005F3093CS (848 pcs).