RC1005F393CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F393CS is a 39 kOhm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format with 1/16W power rating. This component is classified as Active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or application-specific performance needs while maintaining electrical and mechanical compatibility.

Substiute Parts

RC1005F393CS

Samsung Electro-MechanicsIn Stock: 722RC1005F393CS Datasheet

Current PartRFQ

CR0402-FX-3902GLF

Bourns Inc.In Stock: 23174CR0402-FX-3902GLF Datasheet

DirectRFQ

RC0402FR-0739KL

YAGEOIn Stock: 15711RC0402FR-0739KL Datasheet

DirectRFQ

ERJ-2RKF3902X

Panasonic Electronic ComponentsIn Stock: 275611ERJ-2RKF3902X Datasheet

UpgradeRFQ

AC0402FR-0739KL

YAGEOIn Stock: 76602AC0402FR-0739KL Datasheet

SimilarRFQ

AF0402FR-0739KL

YAGEOIn Stock: 41046AF0402FR-0739KL Datasheet

SimilarRFQ

RMCF0402FT39K0

Stackpole Electronics IncIn Stock: 122204RMCF0402FT39K0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for RC1005F393CS are classified into three categories based on electrical and mechanical parameter alignment:

Direct Equivalents maintain identical electrical specifications (39 kOhms, ±1% tolerance, 0.063W power rating, ±100ppm/°C temperature coefficient) and mechanical dimensions (0402 package, 1.00mm x 0.50mm, 0.40mm max height). These parts are interchangeable without circuit performance impact.

Upgrade Substitutes provide enhanced power rating (0.1W vs. 0.063W) while maintaining all other electrical parameters and package dimensions. These parts offer increased thermal headroom and are backward-compatible for applications requiring higher power dissipation margins.

Similar Substitutes include automotive-grade variants (AEC-Q200 rated) with identical or near-identical electrical and mechanical specifications. These parts introduce additional qualification standards and environmental performance features while preserving core electrical characteristics.

Substitution eligibility is determined by: (1) Resistance value match (39 kOhms), (2) Tolerance match (±1%), (3) Package compatibility (0402 form factor), (4) Temperature coefficient alignment (±100ppm/°C), (5) Operating temperature range coverage (-55°C to 155°C), and (6) RoHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: CR0402-FX-3902GLF (Bourns Inc.) and RC0402FR-0739KL (YAGEO) are direct electrical and mechanical equivalents to RC1005F393CS. Both maintain identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. Selection between these options is determined by packaging preference (Tape & Reel vs. Cut Tape & Digi-Reel) and inventory availability.

Upgrade Path: ERJ-2RKF3902X (Panasonic Electronic Components) provides enhanced power rating (0.1W vs. 0.063W) while preserving all other electrical parameters. This upgrade is applicable when circuit design margins require increased power dissipation capability or when thermal stress analysis indicates higher power headroom is beneficial. AEC-Q200 automotive qualification is included.

Automotive-Grade Alternatives: AC0402FR-0739KL, AF0402FR-0739KL, and RMCF0402FT39K0 are suitable for applications requiring AEC-Q200 automotive qualification. AC0402FR-0739KL combines automotive rating with moisture resistance. AF0402FR-0739KL adds anti-sulfur protection for corrosive environments. RMCF0402FT39K0 provides automotive-grade performance from Stackpole Electronics. All three maintain identical electrical specifications to the main part.

All substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-3902GLF replace RC1005F393CS in existing designs? A: Yes. CR0402-FX-3902GLF is a direct equivalent with identical resistance (39 kOhms), tolerance (±1%), power rating (0.063W), temperature coefficient (±100ppm/°C), and 0402 package dimensions. No circuit redesign is required.

Q: What is the difference between RC0402FR-0739KL and RC1005F393CS? A: Both parts are functionally equivalent with identical electrical specifications. RC0402FR-0739KL is manufactured by YAGEO and supplied in Cut Tape & Digi-Reel packaging, while RC1005F393CS is Samsung Electro-Mechanics supplied in Tape & Reel packaging. Both include moisture-resistant features.

Q: When should ERJ-2RKF3902X be selected instead of the main part? A: ERJ-2RKF3902X provides 0.1W power rating compared to 0.063W in RC1005F393CS. Select this upgrade when circuit analysis indicates higher power dissipation or when thermal margin requirements exceed the standard 1/16W rating. AEC-Q200 automotive qualification is an additional benefit.

Q: Are automotive-grade parts (AC0402FR-0739KL, AF0402FR-0739KL, RMCF0402FT39K0) suitable for non-automotive applications? A: Yes. Automotive-grade parts meet or exceed standard industrial specifications. These parts are fully compatible with non-automotive designs and provide additional qualification assurance. Selection is based on application requirements and supply chain availability.

Q: What is the significance of anti-sulfur protection in AF0402FR-0739KL? A: Anti-sulfur protection (AF series) is specified for environments with hydrogen sulfide exposure or high-sulfur atmospheric conditions. For standard industrial and consumer applications without sulfur contamination risk, this feature is not required.

Q: Do all substitute parts have identical physical dimensions? A: All parts use 0402 (1005 Metric) package format with 1.00mm x 0.50mm dimensions. Height specifications are 0.40mm (main part and RMCF0402FT39K0) or 0.37mm (AC0402FR-0739KL and AF0402FR-0739KL). These minor height variations are within standard PCB assembly tolerances and do not affect placement or soldering.

Q: What packaging options are available? A: RC1005F393CS and CR0402-FX-3902GLF are supplied in Tape & Reel (TR). RC0402FR-0739KL is supplied in Cut Tape (CT) & Digi-Reel. ERJ-2RKF3902X, AC0402FR-0739KL, AF0402FR-0739KL, and RMCF0402FT39K0 are supplied in Cut Tape (CT) & Digi-Reel or Tape & Reel. Packaging selection depends on assembly process requirements and volume specifications.

Q: Are all parts RoHS3 compliant? A: Yes. All listed parts including RC1005F393CS and all substitutes are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard lead-free PCB assembly processes.