RC1608F303CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F303CS is a 30 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 unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring precision resistive elements with moisture resistance and stable performance across the operating temperature range of -55°C to 155°C. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, packaging format, and compliance certifications to ensure direct functional interchangeability in circuit designs.

Substiute Parts

RC1608F303CS

Samsung Electro-MechanicsIn Stock: 1051RC1608F303CS Datasheet

Current PartRFQ

CR0603-FX-3002ELF

Bourns Inc.In Stock: 34927CR0603-FX-3002ELF Datasheet

DirectRFQ

RC0603FR-0730KL

YAGEOIn Stock: 85290RC0603FR-0730KL Datasheet

DirectRFQ

KTR03EZPF3002

Rohm SemiconductorIn Stock: 5490KTR03EZPF3002 Datasheet

UpgradeRFQ

AC0603FR-0730KL

YAGEOIn Stock: 30500AC0603FR-0730KL Datasheet

SimilarRFQ

CRCW060330K0FKEA

Vishay DaleIn Stock: 126897CRCW060330K0FKEA Datasheet

SimilarRFQ

ERJ-3EKF3002V

Panasonic Electronic ComponentsIn Stock: 247290ERJ-3EKF3002V Datasheet

SimilarRFQ

RMCF0603FG30K0

Stackpole Electronics IncIn Stock: 3150RMCF0603FG30K0 Datasheet

SimilarRFQ

RMCF0603FT30K0

Stackpole Electronics IncIn Stock: 146963RMCF0603FT30K0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F303CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (30 kOhms), tolerance (±1%), and power rating (0.1W) must be identical. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C to 155°C) establish thermal performance boundaries.

Mechanical Compatibility: Package format must be 0603 (1608 Metric). Physical dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm) and maximum seated height (0.022" / 0.55mm) define PCB footprint compatibility. Two terminations are required.

Material & Composition: Thick film construction is the specified composition type.

Compliance & Certifications: RoHS3 compliance and MSL 1 rating are mandatory. REACH unaffected status and EAR99 ECCN classification apply uniformly across all qualified substitutes.

Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® packaging formats are acceptable for substitution purposes.

Substitute parts are categorized as Direct, Upgrade, or Similar based on feature alignment with the main part specification.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Functionally Equivalent):

CR0603-FX-3002ELF (Bourns Inc.) and RC0603FR-0730KL (YAGEO) are direct functional equivalents to RC1608F303CS. Both maintain identical electrical specifications, package format, and moisture resistance features. CR0603-FX-3002ELF is available in Tape & Reel packaging with 34,867 units in stock. RC0603FR-0730KL is available in Cut Tape & Digi-Reel® format with 85,200 units in stock. Both are Active product status with ROHS3 compliance and MSL 1 rating.

Upgrade Substitutes (Enhanced Capability):

KTR03EZPF3002 (Rohm Semiconductor) qualifies as an upgrade substitute with identical core electrical and mechanical specifications. This part adds Automotive AEC-Q200 certification and high voltage capability, making it suitable for applications requiring automotive-grade reliability. Product status is Active with 5,394 units in stock.

Similar Substitutes (Automotive-Qualified Alternatives):

AC0603FR-0730KL (YAGEO), CRCW060330K0FKEA (Vishay Dale), ERJ-3EKF3002V (Panasonic Electronic Components), RMCF0603FG30K0 (Stackpole Electronics Inc), and RMCF0603FT30K0 (Stackpole Electronics Inc) are similar substitutes with Automotive AEC-Q200 certification. All maintain identical electrical specifications and 0603 package format. These parts are suitable for applications where automotive-grade qualification is required or preferred. Stock availability ranges from 3,090 to 247,186 units across these alternatives.

Selection should prioritize availability, packaging format requirements (Tape & Reel vs. Cut Tape), and whether automotive AEC-Q200 certification is necessary for the application.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0730KL replace RC1608F303CS directly on the PCB?

A: Yes. RC0603FR-0730KL is a direct substitute with identical resistance (30 kOhms), tolerance (±1%), power rating (0.1W), and 0603 package format. Physical dimensions and termination count match the original part. The only difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel), which does not affect PCB assembly compatibility.

Q: What is the difference between the main part and automotive-qualified substitutes?

A: The main part RC1608F303CS is a general-purpose resistor with moisture resistance. Automotive-qualified substitutes (AC0603FR-0730KL, CRCW060330K0FKEA, ERJ-3EKF3002V, RMCF0603FG30K0, RMCF0603FT30K0) carry Automotive AEC-Q200 certification, indicating compliance with automotive reliability and quality standards. All other electrical and mechanical parameters remain identical.

Q: Are there dimensional differences between substitute parts?

A: Most substitutes maintain the standard 0603 dimensions (0.063" L x 0.031" W / 1.60mm x 0.80mm). CRCW060330K0FKEA has slightly different dimensions (0.061" L x 0.033" W / 1.55mm x 0.85mm) and maximum seated height (0.020" / 0.50mm). These minor variations remain within 0603 package tolerance and do not affect PCB footprint compatibility.

Q: Which substitute has the highest inventory availability?

A: ERJ-3EKF3002V (Panasonic Electronic Components) has the highest inventory with 247,186 units in stock, followed by CRCW060330K0FKEA (Vishay Dale) with 126,829 units.

Q: Can KTR03EZPF3002 be used in non-automotive applications?

A: Yes. KTR03EZPF3002 meets all electrical and mechanical requirements of RC1608F303CS and exceeds them with automotive AEC-Q200 certification and high voltage capability. It is suitable for any application requiring a 30 kOhms ±1% 0.1W 0603 resistor.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level and REACH unaffected status, matching the compliance profile of RC1608F303CS.