RC1608F6813CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F6813CS is a 681 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 with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring precision resistive elements with moisture resistance in compact surface-mount form factors. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct circuit board compatibility.

Substiute Parts

RC1608F6813CS

Samsung Electro-MechanicsIn Stock: 1404RC1608F6813CS Datasheet

Current PartRFQ

CR0603-FX-6813ELF

Bourns Inc.In Stock: 20430CR0603-FX-6813ELF Datasheet

DirectRFQ

RC0603FR-07681KL

YAGEOIn Stock: 104753RC0603FR-07681KL Datasheet

DirectRFQ

CRCW0603681KFKEA

Vishay DaleIn Stock: 13944CRCW0603681KFKEA Datasheet

SimilarRFQ

ERJ-3EKF6813V

Panasonic Electronic ComponentsIn Stock: 93448ERJ-3EKF6813V Datasheet

SimilarRFQ

RMCF0603FT681K

Stackpole Electronics IncIn Stock: 244955RMCF0603FT681K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F6813CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (681 kOhms), tolerance (±1%), and power rating (0.1W) must be identical. Temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C) establish thermal performance boundaries.

Mechanical Parameters: Package designation (0603 / 1608 Metric) and number of terminations (2) ensure physical and electrical interface compatibility on printed circuit boards.

Environmental & Compliance Parameters: RoHS3 compliance, MSL 1 rating, and REACH unaffected status maintain regulatory and manufacturing process alignment.

Composition: Thick film construction is the specified technology for all qualified substitutes.

All substitute parts listed below satisfy these criteria without exception. Packaging format (Cut Tape vs. Tape & Reel) represents a logistics variable and does not affect electrical or mechanical substitutability.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are Active product status components with ROHS3 compliance and REACH unaffected designation, establishing regulatory equivalence with the primary RC1608F6813CS part.

Direct Substitutes (Moisture Resistant Feature): CR0603-FX-6813ELF (Bourns Inc.) and RC0603FR-07681KL (YAGEO) maintain the moisture resistant thick film specification identical to the main part. These components are suitable for direct replacement in applications where moisture resistance is a specified design requirement.

Automotive-Qualified Alternatives (AEC-Q200 Rated): CRCW0603681KFKEA (Vishay Dale), ERJ-3EKF6813V (Panasonic Electronic Components), and RMCF0603FT681K (Stackpole Electronics Inc) carry AEC-Q200 automotive qualification. These parts exceed the environmental and reliability requirements of the base specification and are suitable for applications requiring automotive-grade components or enhanced reliability margins.

All six parts share identical electrical parameters (681 kΩ, ±1%, 0.1W), thermal characteristics (±100ppm/°C, -55°C ~ 155°C), and mechanical form factor (0603 package, 2 terminations). Selection between direct moisture-resistant substitutes and automotive-qualified alternatives depends on application requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can CRCW0603681KFKEA, ERJ-3EKF6813V, or RMCF0603FT681K be used as direct replacements for RC1608F6813CS?

A: Yes. All three parts meet the electrical, mechanical, and environmental specifications of the RC1608F6813CS. The AEC-Q200 automotive qualification represents an enhanced reliability rating and does not create incompatibility. These parts are electrically and mechanically interchangeable.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape and Tape & Reel are packaging and delivery formats only. They do not affect the electrical performance or mechanical compatibility of the component. Cut Tape is typically used for smaller quantity orders, while Tape & Reel is standard for high-volume manufacturing. The actual resistor element is identical.

Q: Are the dimensional variations between parts significant?

A: Dimensional variations are within acceptable tolerances for 0603 package form factor. The RC1608F6813CS specifies 0.063" L x 0.031" W (1.60mm x 0.80mm) with 0.022" height maximum. Substitute parts show minor variations (e.g., CRCW0603681KFKEA at 0.061" L x 0.033" W with 0.020" height maximum). These differences remain within standard PCB design tolerances and do not require layout modifications.

Q: Why do some substitutes carry AEC-Q200 rating while the main part does not?

A: AEC-Q200 is an automotive industry qualification standard. Manufacturers producing automotive-grade components apply this certification to parts meeting enhanced reliability and testing requirements. The base electrical and mechanical specifications remain identical. AEC-Q200 rated parts are suitable for any application requiring the 681 kΩ ±1% 0.1W 0603 resistor, including non-automotive applications.

Q: Is moisture resistance a critical parameter for substitution?

A: Moisture resistance is specified for the RC1608F6813CS and CR0603-FX-6813ELF and RC0603FR-07681KL. The automotive-qualified alternatives (CRCW0603681KFKEA, ERJ-3EKF6813V, RMCF0603FT681K) do not explicitly list moisture resistance as a feature but carry MSL 1 rating, indicating unlimited moisture sensitivity level. If moisture resistance is a design requirement, CR0603-FX-6813ELF or RC0603FR-07681KL are preferred selections.

Q: Can these parts be used in high-temperature applications?

A: All listed parts operate across the -55°C ~ 155°C temperature range with ±100ppm/°C temperature coefficient. This specification applies uniformly to all substitutes. Selection based on temperature performance alone does not differentiate between parts.