RC1005F1911CS Equivalent & Substitute Parts

Part Overview

The RC1005F1911CS is a 1.91 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0402 (1005 Metric) package format. This surface mount device (SMD) is rated for 0.063W (1/16W) power dissipation and features moisture-resistant construction with unlimited moisture sensitivity level (MSL 1). The part is currently in active production status with 1034 units in stock. Equivalent and substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and specific application requirements such as automotive qualification or enhanced power ratings.

Substiute Parts

RC1005F1911CS

Samsung Electro-MechanicsIn Stock: 1046RC1005F1911CS Datasheet

Current PartRFQ

CR0402-FX-1911GLF

Bourns Inc.In Stock: 20859CR0402-FX-1911GLF Datasheet

DirectRFQ

RC0402FR-071K91L

YAGEOIn Stock: 848947RC0402FR-071K91L Datasheet

DirectRFQ

ERJ-2RKF1911X

Panasonic Electronic ComponentsIn Stock: 348529ERJ-2RKF1911X Datasheet

UpgradeRFQ

CRCW04021K91FKED

Vishay DaleIn Stock: 46336CRCW04021K91FKED Datasheet

SimilarRFQ

RMCF0402FT1K91

Stackpole Electronics IncIn Stock: 81147RMCF0402FT1K91 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1005F1911CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1.91 kOhms
• Tolerance: ±1%
• Package: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Terminations: 2
• RoHS3 Compliance

Allowable Variation:

• Power rating may be equal or higher (0.063W minimum)
• Additional features (automotive qualification, enhanced moisture resistance) do not disqualify substitution

The substitute parts are grouped into three categories based on their relationship to the main part:

Direct Equivalents maintain identical electrical and mechanical specifications with no enhancement or reduction in ratings.

Upgrade Options provide enhanced power ratings or automotive qualification while maintaining all other core parameters.

Similar Alternatives offer equivalent core specifications with additional certifications or features suitable for specific application contexts.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: CR0402-FX-1911GLF (Bourns Inc.) and RC0402FR-071K91L (YAGEO) are direct functional equivalents to the RC1005F1911CS. Both maintain identical electrical specifications, package format, and power rating. RC0402FR-071K91L offers significantly higher inventory availability (848,871 units) compared to the main part, making it suitable for high-volume production requirements. Both parts carry ROHS3 compliance and unlimited MSL rating.

Upgrade Option: ERJ-2RKF1911X (Panasonic Electronic Components) provides enhanced power rating of 0.1W (1/10W) versus the standard 0.063W, with automotive AEC-Q200 qualification. This part is suitable for applications requiring automotive-grade reliability or thermal margin enhancement while maintaining all other core specifications.

Automotive-Qualified Alternatives: CRCW04021K91FKED (Vishay Dale) and RMCF0402FT1K91 (Stackpole Electronics Inc) both carry AEC-Q200 automotive qualification at the standard 0.063W power rating. These parts are appropriate for automotive and industrial applications requiring formal qualification documentation.

All substitute parts are active production items with ROHS3 compliance and unlimited moisture sensitivity rating, ensuring compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can CR0402-FX-1911GLF be used as a direct replacement for RC1005F1911CS?

A: Yes. CR0402-FX-1911GLF is a direct equivalent with identical resistance (1.91 kΩ), tolerance (±1%), power rating (0.063W), package (0402), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). Both are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the main part and ERJ-2RKF1911X?

A: ERJ-2RKF1911X has a higher power rating (0.1W versus 0.063W) and includes automotive AEC-Q200 qualification. All other electrical and mechanical parameters are identical. The higher power rating provides additional thermal dissipation capacity.

Q: Are the automotive-qualified parts (CRCW04021K91FKED and RMCF0402FT1K91) suitable for non-automotive applications?

A: Yes. Automotive-qualified parts meet or exceed standard industrial specifications. AEC-Q200 qualification indicates enhanced reliability testing and quality assurance. These parts are fully compatible with non-automotive applications.

Q: Does moisture resistance affect substitution compatibility?

A: No. The RC1005F1911CS specifies moisture-resistant construction, while CR0402-FX-1911GLF does not list this feature. However, both carry MSL 1 (unlimited) rating, indicating equivalent moisture handling capability. Moisture resistance is a material property that does not affect electrical substitution.

Q: Which substitute part has the best inventory availability?

A: RC0402FR-071K91L (YAGEO) has the highest inventory with 848,871 units in stock, followed by ERJ-2RKF1911X (Panasonic) with 348,473 units. These options are recommended for high-volume production or long-term supply security.

Q: Can I use a higher power-rated resistor in place of the RC1005F1911CS?

A: Yes. ERJ-2RKF1911X (0.1W rating) is a valid substitute for applications using RC1005F1911CS (0.063W rating). Higher power rating provides thermal margin without affecting electrical performance. Physical dimensions remain identical (0402 package).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the main part.