RC0603F6491CS Equivalent & Substitute Parts Reference

Part Overview

The RC0603F6491CS is a 6.49 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and regulatory compliance can be maintained across alternative manufacturers while preserving circuit performance and reliability requirements.

Substiute Parts

RC0603F6491CS

Samsung Electro-MechanicsIn Stock: 1104RC0603F6491CS Datasheet

Current PartRFQ

CRCW02016K49FKED

Vishay DaleIn Stock: 44516CRCW02016K49FKED Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC0603F6491CS is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Resistance value (6.49 kOhms), tolerance (±1%), and power rating (0.05W) must be identical. These parameters directly affect circuit function and signal integrity.

Mechanical Compatibility: Package designation (0201 / 0603 Metric) and physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) must match precisely to ensure PCB footprint compatibility and assembly process alignment.

Material Composition: Thick film construction is required to maintain electrical performance characteristics and thermal stability.

Regulatory Compliance: RoHS3 compliance and MSL 1 rating are mandatory for supply chain and manufacturing process compatibility.

Temperature Performance: Operating temperature range may extend beyond the main part specification without compromising substitution validity, provided the minimum range (-55°C to 125°C) is met or exceeded.

The identified substitute CRCW02016K49FKED from Vishay Dale meets all mandatory criteria for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RC0603F6491CS): Samsung Electro-Mechanics RC series component with Active product status. Suitable for applications requiring standard performance specifications within the -55°C to 125°C operating window. Moisture resistant thick film construction with MSL 1 rating supports standard manufacturing and storage conditions.

Substitute Selection (CRCW02016K49FKED): Vishay Dale CRCW series component with Active product status. Provides identical electrical and mechanical compatibility with enhanced temperature coefficient performance (±100ppm/°C versus ±250ppm/°C) and extended operating temperature range (-55°C to 155°C). Both components maintain full RoHS3 compliance and REACH unaffected status, ensuring regulatory alignment across supply chain alternatives.

Selection between these components is determined by application-specific requirements for temperature stability and operating environment. Both components are suitable for direct substitution in standard PCB assembly processes with identical tape & reel or cut tape packaging options.

Frequently Asked Questions (FAQ)

Q: Can CRCW02016K49FKED replace RC0603F6491CS in existing designs without PCB modification?

A: Yes. Both components share identical package designation (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W), and electrical specifications (6.49 kOhms ±1%, 0.05W). PCB footprints and assembly processes require no modification.

Q: What is the difference in temperature coefficient between these parts?

A: RC0603F6491CS has a temperature coefficient of ±250ppm/°C, while CRCW02016K49FKED has ±100ppm/°C. The Vishay component exhibits superior temperature stability. For applications with tight tolerance requirements across temperature ranges, the lower coefficient may provide performance advantages.

Q: Are both components suitable for high-temperature applications?

A: RC0603F6491CS operates to 125°C maximum. CRCW02016K49FKED extends to 155°C. For applications requiring sustained operation above 125°C, the Vishay component is the appropriate selection.

Q: Do packaging format differences affect substitution?

A: RC0603F6491CS is supplied in Cut Tape (CT) format; CRCW02016K49FKED is supplied in Tape & Reel (TR) format. Both formats are compatible with standard SMD assembly equipment. Format selection depends on production volume and handling requirements, not component compatibility.

Q: Are both components RoHS3 compliant?

A: Yes. Both RC0603F6491CS and CRCW02016K49FKED carry full RoHS3 compliance certification and REACH unaffected status, meeting current regulatory requirements for electronics manufacturing and distribution.

Q: What is the moisture sensitivity rating for both components?

A: Both components have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply without special desiccant or controlled environment requirements.