RC1608F7681CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F7681CS is a 7.68 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 designed for general-purpose SMD applications requiring moisture-resistant construction. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative qualified manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

RC1608F7681CS

Samsung Electro-MechanicsIn Stock: 905RC1608F7681CS Datasheet

Current PartRFQ

CR0603-FX-7681ELF

Bourns Inc.In Stock: 28103CR0603-FX-7681ELF Datasheet

DirectRFQ

RC0603FR-077K68L

YAGEOIn Stock: 41029RC0603FR-077K68L Datasheet

DirectRFQ

AC0603FR-077K68L

YAGEOIn Stock: 9248AC0603FR-077K68L Datasheet

SimilarRFQ

CRCW06037K68FKEA

Vishay DaleIn Stock: 29388CRCW06037K68FKEA Datasheet

SimilarRFQ

ERJ-3EKF7681V

Panasonic Electronic ComponentsIn Stock: 53555ERJ-3EKF7681V Datasheet

SimilarRFQ

RMCF0603FT7K68

Stackpole Electronics IncIn Stock: 22985RMCF0603FT7K68 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F7681CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 7.68 kOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance: ROHS3 Compliant

Substitution Categories:

Direct Equivalents maintain identical electrical specifications, physical dimensions, and standard industrial packaging. These parts are interchangeable without design modification.

Similar Parts meet all mandatory electrical and thermal specifications but include additional qualifications such as Automotive AEC-Q200 certification. These parts exceed base requirements and are suitable for applications requiring automotive-grade reliability.

All substitute parts listed maintain REACH Unaffected status and EAR99 ECCN classification consistent with the main part.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection:

CR0603-FX-7681ELF (Bourns Inc.) and RC0603FR-077K68L (YAGEO) are direct functional equivalents to RC1608F7681CS. Both parts maintain identical electrical specifications, thermal characteristics, and moisture resistance properties. Selection between these options is based on supply availability and procurement lead times.

Automotive-Grade Alternatives:

AC0603FR-077K68L (YAGEO), CRCW06037K68FKEA (Vishay Dale), ERJ-3EKF7681V (Panasonic Electronic Components), and RMCF0603FT7K68 (Stackpole Electronics Inc) are qualified to Automotive AEC-Q200 standard. These parts exceed the base specification of RC1608F7681CS and are suitable for applications requiring automotive-grade reliability and qualification documentation. All four parts maintain identical core electrical and thermal parameters.

Packaging Consideration:

CRCW06037K68FKEA is supplied in Cut Tape (CT) & Digi-Reel® format, differing from the standard Tape & Reel packaging of other alternatives. This packaging format may require process adjustment in automated assembly environments.

All substitute parts maintain Active product status, ROHS3 compliance, and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard storage and handling procedures.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-077K68L (YAGEO) be used as a direct replacement for RC1608F7681CS (Samsung)?

A: Yes. RC0603FR-077K68L meets all mandatory electrical specifications: 7.68 kOhms ±1%, 0.1W power rating, 0603 package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and ROHS3 compliance. Physical dimensions and thermal characteristics are equivalent.

Q: What is the difference between standard and automotive-grade versions?

A: Automotive-grade parts (AC0603FR-077K68L, CRCW06037K68FKEA, ERJ-3EKF7681V, RMCF0603FT7K68) carry AEC-Q200 qualification, indicating compliance with automotive industry reliability and qualification standards. Electrical and thermal specifications remain identical to standard versions. Automotive-grade parts are suitable for general-purpose applications and provide additional qualification documentation.

Q: Are all substitute parts compatible with existing PCB designs?

A: Yes, all substitute parts use identical 0603 (1608 Metric) package dimensions and footprints. PCB layout and assembly processes require no modification. CRCW06037K68FKEA uses alternative packaging format (Cut Tape & Digi-Reel) but maintains identical component footprint.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life under standard storage conditions without requiring dry-pack or baking procedures prior to assembly. All listed parts maintain this classification.

Q: Can I substitute a part with AEC-Q200 qualification into a non-automotive application?

A: Yes. AEC-Q200 qualified parts exceed base specifications and are fully compatible with general-purpose applications. No design or process changes are required.

Q: Are there dimensional differences between substitute parts?

A: All parts use 0603 package standard. Minor variations exist: RC1608F7681CS, CR0603-FX-7681ELF, RC0603FR-077K68L, AC0603FR-077K68L, and ERJ-3EKF7681V measure 0.063" L × 0.031" W (1.60mm × 0.80mm). RMCF0603FT7K68 measures 0.061" L × 0.031" W (1.55mm × 0.80mm). CRCW06037K68FKEA measures 0.061" L × 0.033" W (1.55mm × 0.85mm). These variations fall within standard 0603 package tolerance and do not affect PCB compatibility.

Q: What is the inventory status of substitute parts?

A: CR0603-FX-7681ELF: 28,093 pcs; RC0603FR-077K68L: 40,941 pcs; AC0603FR-077K68L: 9,144 pcs; CRCW06037K68FKEA: 29,333 pcs; ERJ-3EKF7681V: 53,466 pcs; RMCF0603FT7K68: 22,876 pcs. Inventory levels are current as of reference date.