RC1005F912CS Equivalent & Substitute Parts Reference

Part Overview

The RC1005F912CS is a 9.1 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 with moisture resistant characteristics and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary to address supply chain continuity, inventory optimization, and design flexibility across multiple manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

RC1005F912CS

Samsung Electro-MechanicsIn Stock: 969RC1005F912CS Datasheet

Current PartRFQ

CR0402-FX-9101GLF

Bourns Inc.In Stock: 8099CR0402-FX-9101GLF Datasheet

DirectRFQ

CRG0402F9K1

TE Connectivity Passive ProductIn Stock: 19897CRG0402F9K1 Datasheet

DirectRFQ

RC0402FR-079K1L

YAGEOIn Stock: 2162RC0402FR-079K1L Datasheet

DirectRFQ

ERJ-2RKF9101X

Panasonic Electronic ComponentsIn Stock: 134739ERJ-2RKF9101X Datasheet

UpgradeRFQ

AC0402FR-079K1L

YAGEOIn Stock: 76980AC0402FR-079K1L Datasheet

SimilarRFQ

CRCW04029K10FKED

Vishay DaleIn Stock: 20899CRCW04029K10FKED Datasheet

SimilarRFQ

RMCF0402FT9K10

Stackpole Electronics IncIn Stock: 156626RMCF0402FT9K10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1005F912CS are classified based on strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 9.1 kOhms
• Tolerance: ±1%
• Package / Case: 0402 (1005 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Number of Terminations: 2
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Substitution Categories:

Direct Substitutes maintain identical electrical specifications and power rating (0.063W / 1/16W):

• CR0402-FX-9101GLF (Bourns Inc.)
• CRG0402F9K1 (TE Connectivity Passive Product)
• RC0402FR-079K1L (YAGEO)

Upgrade Substitute provides enhanced power rating (0.1W / 1/10W) with automotive qualification:

• ERJ-2RKF9101X (Panasonic Electronic Components)

Similar Substitutes maintain identical electrical and power specifications with additional automotive qualification features:

• AC0402FR-079K1L (YAGEO)
• CRCW04029K10FKED (Vishay Dale)
• RMCF0402FT9K10 (Stackpole Electronics Inc)

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Identical Specifications):

CR0402-FX-9101GLF, CRG0402F9K1, and RC0402FR-079K1L are direct functional equivalents to RC1005F912CS. All maintain identical resistance, tolerance, power rating, package dimensions, and temperature characteristics. Selection among these direct substitutes is determined by packaging format availability (Tape & Reel versus Cut Tape & Digi-Reel) and inventory status. RC0402FR-079K1L from YAGEO includes moisture resistant features matching the original specification.

Upgrade Path (Enhanced Power Rating):

ERJ-2RKF9101X from Panasonic Electronic Components provides a higher power rating of 0.1W (1/10W) compared to the 0.063W specification of RC1005F912CS. This upgrade maintains all other electrical parameters and adds Automotive AEC-Q200 qualification. This part is suitable for applications requiring increased thermal margin or automotive-grade reliability.

Automotive-Qualified Alternatives (AEC-Q200):

AC0402FR-079K1L, CRCW04029K10FKED, and RMCF0402FT9K10 are suitable for designs requiring automotive-grade components. These parts maintain identical electrical specifications to the original RC1005F912CS while providing AEC-Q200 certification. AC0402FR-079K1L additionally includes moisture resistant features. Selection depends on supply chain preference and design requirements for automotive qualification.

Compliance Verification:

All substitute parts listed maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and identical operating temperature range (-55°C to 155°C). REACH status is either REACH Unaffected or Vendor Undefined across all options, presenting no regulatory barriers to substitution.

Frequently Asked Questions (FAQ)

Q: Can RC0402FR-079K1L be used as a direct replacement for RC1005F912CS?

A: Yes. RC0402FR-079K1L from YAGEO is a direct substitute. Both parts share identical resistance (9.1 kOhms), tolerance (±1%), power rating (0.063W), package (0402), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and moisture resistant characteristics. The primary difference is packaging format: RC1005F912CS is supplied in Tape & Reel, while RC0402FR-079K1L is available in Cut Tape & Digi-Reel format.

Q: What is the difference between the direct substitutes and the upgrade substitute ERJ-2RKF9101X?

A: Direct substitutes (CR0402-FX-9101GLF, CRG0402F9K1, RC0402FR-079K1L) maintain the 0.063W (1/16W) power rating of RC1005F912CS. ERJ-2RKF9101X provides an enhanced power rating of 0.1W (1/10W) while maintaining all other electrical specifications. The upgrade substitute also includes Automotive AEC-Q200 qualification. Use the upgrade when designs require higher power dissipation capability or automotive-grade reliability.

Q: Are the automotive-qualified parts (AC0402FR-079K1L, CRCW04029K10FKED, RMCF0402FT9K10) compatible with non-automotive applications?

A: Yes. Automotive-qualified parts meet or exceed the electrical and environmental specifications required for non-automotive applications. These parts maintain identical resistance, tolerance, power rating, and temperature characteristics as RC1005F912CS. Automotive qualification represents an additional quality and reliability standard, not a limitation for general-purpose use.

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

A: RC1005F912CS and most direct substitutes are supplied in Tape & Reel (TR) format. RC0402FR-079K1L and CRCW04029K10FKED are available in Cut Tape (CT) & Digi-Reel format. Packaging format selection depends on assembly equipment compatibility and procurement requirements. All parts maintain identical electrical and mechanical specifications regardless of packaging format.

Q: Do all substitute parts have the same physical dimensions?

A: Yes. All substitute parts are specified for 0402 (1005 Metric) package with dimensions of 0.039" L x 0.020" W (1.00mm x 0.50mm). Maximum seated height ranges from 0.015" to 0.016" (0.37mm to 0.40mm) across all parts, which is within standard PCB assembly tolerances and does not affect interchangeability.

Q: Which substitute part has the highest inventory availability?

A: ERJ-2RKF9101X from Panasonic Electronic Components has the highest inventory level at 134,688 pieces. RMCF0402FT9K10 from Stackpole Electronics Inc has 156,552 pieces available. For immediate availability of direct equivalents, CRG0402F9K1 from TE Connectivity has 19,815 pieces in stock.

Q: Are there any compliance or certification differences between the substitute parts?

A: All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). REACH status is either REACH Unaffected or Vendor Undefined across all options. Automotive-qualified parts (AC0402FR-079K1L, CRCW04029K10FKED, RMCF0402FT9K10, ERJ-2RKF9101X) include AEC-Q200 certification. No regulatory barriers exist for substitution in either automotive or non-automotive applications.