RC1608F124CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F124CS is a 120 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status and is RoHS3 compliant with REACH Unaffected designation. The part features moisture-resistant construction with ±100ppm/°C temperature coefficient and operates across -55°C to 155°C temperature range. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, package format, and compliance certifications to ensure direct functional interchangeability in circuit applications.

Substiute Parts

RC1608F124CS

Samsung Electro-MechanicsIn Stock: 1192RC1608F124CS Datasheet

Current PartRFQ

CR0603-FX-1203ELF

Bourns Inc.In Stock: 214823CR0603-FX-1203ELF Datasheet

DirectRFQ

CRG0603F120K

TE Connectivity Passive ProductIn Stock: 8290CRG0603F120K Datasheet

DirectRFQ

RC0603FR-07120KL

YAGEOIn Stock: 12303RC0603FR-07120KL Datasheet

DirectRFQ

KTR03EZPF1203

Rohm SemiconductorIn Stock: 6106KTR03EZPF1203 Datasheet

UpgradeRFQ

AC0603FR-07120KL

YAGEOIn Stock: 6839AC0603FR-07120KL Datasheet

SimilarRFQ

CRCW0603120KFKEA

Vishay DaleIn Stock: 68435CRCW0603120KFKEA Datasheet

SimilarRFQ

ERJ-3EKF1203V

Panasonic Electronic ComponentsIn Stock: 141321ERJ-3EKF1203V Datasheet

SimilarRFQ

ERJ-S03F1203V

Panasonic Electronic ComponentsIn Stock: 10524ERJ-S03F1203V Datasheet

SimilarRFQ

RMCF0603FG120K

Stackpole Electronics IncIn Stock: 10593RMCF0603FG120K Datasheet

SimilarRFQ

RMCF0603FT120K

Stackpole Electronics IncIn Stock: 261374RMCF0603FT120K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for RC1608F124CS are classified into three categories based on functional equivalence and application suitability:

Direct Equivalents maintain identical electrical and mechanical specifications with standard industrial-grade construction. These parts share the same resistance value (120 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (RoHS3, REACH Unaffected). Direct equivalents include CR0603-FX-1203ELF (Bourns Inc.), CRG0603F120K (TE Connectivity), and RC0603FR-07120KL (YAGEO).

Upgrade Parts provide enhanced specifications suitable for demanding applications. KTR03EZPF1203 (Rohm Semiconductor) adds Automotive AEC-Q200 qualification and high-voltage capability while maintaining all core electrical parameters and package compatibility.

Application-Specific Alternatives include automotive-grade components with AEC-Q200 certification: AC0603FR-07120KL (YAGEO), CRCW0603120KFKEA (Vishay Dale), ERJ-3EKF1203V (Panasonic), ERJ-S03F1203V (Panasonic with anti-sulfur feature), RMCF0603FG120K (Stackpole), and RMCF0603FT120K (Stackpole). These parts maintain core electrical specifications and package format while adding automotive qualification for applications requiring AEC-Q200 compliance.

Substitution eligibility is determined by: matching resistance value, tolerance, power rating, package/case format, temperature coefficient, operating temperature range, and compliance status (RoHS3, REACH).

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: CR0603-FX-1203ELF (Bourns Inc.), CRG0603F120K (TE Connectivity), and RC0603FR-07120KL (YAGEO) provide direct functional equivalence to RC1608F124CS. All three maintain identical electrical specifications, package format, and RoHS3 compliance. Selection among these direct equivalents may be based on packaging preference (Tape & Reel versus Cut Tape & Digi-Reel) and supplier availability.

For Automotive Applications: KTR03EZPF1203 (Rohm Semiconductor), AC0603FR-07120KL (YAGEO), CRCW0603120KFKEA (Vishay Dale), ERJ-3EKF1203V (Panasonic), ERJ-S03F1203V (Panasonic), RMCF0603FG120K (Stackpole), and RMCF0603FT120K (Stackpole) all carry AEC-Q200 automotive qualification. These parts are suitable for automotive-grade circuit designs requiring enhanced reliability and qualification documentation. ERJ-S03F1203V additionally includes anti-sulfur feature for corrosive environments.

Packaging Considerations: Tape & Reel packaging (RC1608F124CS, CR0603-FX-1203ELF, CRG0603F120K, KTR03EZPF1203, ERJ-S03F1203V, RMCF0603FG120K) is standard for high-volume automated assembly. Cut Tape & Digi-Reel packaging (RC0603FR-07120KL, AC0603FR-07120KL, CRCW0603120KFKEA, ERJ-3EKF1203V, RMCF0603FT120K) accommodates lower-volume or mixed-component requirements.

All substitute parts maintain RoHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility with RC1608F124CS in end-use applications.

Frequently Asked Questions (FAQ)

Q: Can CR0603-FX-1203ELF replace RC1608F124CS in any circuit application?

A: CR0603-FX-1203ELF is a direct equivalent with identical resistance (120 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Both parts are RoHS3 compliant and moisture resistant. Direct substitution is functionally valid.

Q: What is the difference between standard and automotive-grade 120 kOhm 0603 resistors?

A: Automotive-grade parts (KTR03EZPF1203, AC0603FR-07120KL, CRCW0603120KFKEA, ERJ-3EKF1203V, ERJ-S03F1203V, RMCF0603FG120K, RMCF0603FT120K) carry AEC-Q200 certification, indicating qualification for automotive reliability and environmental stress testing. Standard industrial parts (RC1608F124CS, CR0603-FX-1203ELF, CRG0603F120K, RC0603FR-07120KL) do not carry this certification. Automotive-grade parts are required for automotive applications; standard parts are suitable for general industrial use.

Q: Does packaging type (Tape & Reel versus Cut Tape & Digi-Reel) affect electrical performance?

A: Packaging type does not affect electrical performance or specifications. Tape & Reel packaging is optimized for high-volume automated assembly lines. Cut Tape & Digi-Reel packaging accommodates lower-volume production or mixed-component kitting. Selection is based on manufacturing process requirements, not circuit functionality.

Q: Are all listed substitute parts RoHS3 compliant?

A: All substitute parts listed are RoHS3 compliant. RC1608F124CS and all equivalent/substitute parts meet RoHS3 requirements for hazardous substance restrictions.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity limitations. These parts do not require special moisture-control handling during storage, transport, or assembly. Standard warehouse conditions are acceptable.

Q: Can ERJ-S03F1203V be used in place of RC1608F124CS?

A: ERJ-S03F1203V is functionally equivalent with matching electrical specifications and package format. The additional anti-sulfur feature provides enhanced corrosion resistance in sulfur-containing environments. Substitution is valid for standard applications; the anti-sulfur feature provides added protection in corrosive conditions but is not required for general use.

Q: What is the significance of ±100ppm/°C temperature coefficient?

A: Temperature coefficient of ±100ppm/°C indicates the resistor's resistance value changes by up to 100 parts per million for each degree Celsius change in operating temperature. All listed parts share this specification, ensuring consistent thermal performance across the -55°C to 155°C operating range.

Q: Are there dimensional differences between substitute parts?

A: Most substitute parts maintain standard 0603 (1608 Metric) dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) with maximum seated height of 0.022" (0.55mm). CRCW0603120KFKEA and RMCF0603FG120K have slightly different dimensions (0.061" L x 0.033" W and 0.061" L x 0.031" W respectively) but remain within 0603 package classification and are mechanically compatible with standard 0603 footprints.