RC1005F3403CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F3403CS is a 340 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This component 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 and is ROHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity rating).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative certifications such as automotive AEC-Q200 qualification or upgraded power ratings.

Substiute Parts

RC1005F3403CS

Samsung Electro-MechanicsIn Stock: 1207RC1005F3403CS Datasheet

Current PartRFQ

CR0402-FX-3403GLF

Bourns Inc.In Stock: 37828CR0402-FX-3403GLF Datasheet

DirectRFQ

RC0402FR-07340KL

YAGEOIn Stock: 10138RC0402FR-07340KL Datasheet

DirectRFQ

ERJ-2RKF3403X

Panasonic Electronic ComponentsIn Stock: 201657ERJ-2RKF3403X Datasheet

UpgradeRFQ

AC0402FR-07340KL

YAGEOIn Stock: 15243AC0402FR-07340KL Datasheet

SimilarRFQ

CRCW0402340KFKED

Vishay DaleIn Stock: 144356CRCW0402340KFKED Datasheet

SimilarRFQ

RMCF0402FT340K

Stackpole Electronics IncIn Stock: 310143RMCF0402FT340K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F3403CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 340 kOhms
• Tolerance: ±1%
• Package / Case: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

• Power Rating: Substitute parts may equal or exceed the 0.063W (1/16W) specification
• Features: Substitute parts may include additional certifications (AEC-Q200) or enhanced moisture resistance without affecting base functionality
• Packaging Format: Cut Tape (CT) and Tape & Reel (TR) formats are mechanically and electrically interchangeable

Substitute parts are grouped into three categories based on their relationship to the main part specification:

Direct Equivalents maintain identical electrical and mechanical specifications with alternative packaging formats.

Upgrade Substitutes provide enhanced power ratings (0.1W / 1/10W) while maintaining all other critical parameters, suitable for applications requiring additional thermal margin.

Similar Substitutes include automotive AEC-Q200 certification or enhanced moisture resistance features while maintaining base electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: CR0402-FX-3403GLF (Bourns Inc.) and RC0402FR-07340KL (YAGEO) provide direct electrical and mechanical equivalence to the RC1005F3403CS. Both parts maintain identical resistance, tolerance, power rating, and temperature specifications. Selection between these options is based on packaging availability (Tape & Reel format) and inventory status.

Upgrade Selection for Enhanced Thermal Performance: ERJ-2RKF3403X (Panasonic Electronic Components) provides a 0.1W (1/10W) power rating upgrade while maintaining all other critical parameters. This part is suitable for applications requiring additional thermal margin or operating in elevated ambient conditions. The automotive AEC-Q200 certification qualifies this part for automotive applications.

Automotive-Qualified Selection: AC0402FR-07340KL (YAGEO), CRCW0402340KFKED (Vishay Dale), and RMCF0402FT340K (Stackpole Electronics Inc) incorporate automotive AEC-Q200 certification. These parts are suitable for automotive and industrial applications requiring enhanced reliability qualification. AC0402FR-07340KL additionally includes moisture-resistant construction matching the original part specification.

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

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-3403GLF replace RC1005F3403CS in all applications?

A: Yes. CR0402-FX-3403GLF provides direct electrical and mechanical equivalence. Both parts share identical resistance (340 kOhms), tolerance (±1%), power rating (0.063W), package format (0402), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The primary difference is manufacturer and packaging format (Tape & Reel vs. Cut Tape), which does not affect circuit performance.

Q: What is the difference between the main part and ERJ-2RKF3403X?

A: ERJ-2RKF3403X provides an upgraded power rating of 0.1W (1/10W) compared to the 0.063W (1/16W) specification of RC1005F3403CS. All other electrical parameters remain identical. The upgrade is suitable for applications requiring additional thermal headroom. ERJ-2RKF3403X includes automotive AEC-Q200 certification, qualifying it for automotive applications.

Q: Are automotive AEC-Q200 certified parts compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 certification represents an enhanced reliability qualification standard. Parts meeting this standard are fully compatible with non-automotive applications and provide equivalent or superior performance characteristics. Selection of AEC-Q200 certified parts is optional unless the application specifically requires automotive qualification.

Q: What is the significance of moisture-resistant construction?

A: Moisture-resistant thick film construction provides enhanced protection against moisture ingress during PCB assembly and operation in humid environments. RC1005F3403CS and RC0402FR-07340KL include this feature. Parts without explicit moisture-resistant designation (CR0402-FX-3403GLF, CRCW0402340KFKED, RMCF0402FT340K) maintain MSL Level 1 rating, indicating unlimited moisture sensitivity tolerance and compatibility with standard assembly processes.

Q: Can Cut Tape (CT) and Tape & Reel (TR) packaging formats be used interchangeably?

A: Cut Tape and Tape & Reel formats are mechanically and electrically interchangeable. The packaging format affects handling and automated assembly processes but does not impact circuit performance. Selection depends on assembly equipment compatibility and inventory management requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with current PCB assembly standards and storage requirements.