RC1608F6811CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F6811CS is a 6.81 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design requirements necessitate alternative sourcing from qualified manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

RC1608F6811CS

Samsung Electro-MechanicsIn Stock: 966RC1608F6811CS Datasheet

Current PartRFQ

CR0603-FX-6811ELF

Bourns Inc.In Stock: 79877CR0603-FX-6811ELF Datasheet

DirectRFQ

RC0603FR-076K81L

YAGEOIn Stock: 1055927RC0603FR-076K81L Datasheet

DirectRFQ

AC0603FR-076K81L

YAGEOIn Stock: 19907AC0603FR-076K81L Datasheet

SimilarRFQ

CRCW06036K81FKEA

Vishay DaleIn Stock: 35224CRCW06036K81FKEA Datasheet

SimilarRFQ

ERJ-3EKF6811V

Panasonic Electronic ComponentsIn Stock: 7650ERJ-3EKF6811V Datasheet

SimilarRFQ

RMCF0603FT6K81

Stackpole Electronics IncIn Stock: 277217RMCF0603FT6K81 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F6811CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Resistance value: 6.81 kOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters (Must Match Exactly):

• Package type: 0603 (1608 Metric)
• Composition: Thick Film
• Number of terminations: 2
• Moisture sensitivity level: 1 (Unlimited)

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

All identified substitute parts meet these criteria. Packaging format (Cut Tape, Tape & Reel, Digi-Reel) does not affect electrical or mechanical compatibility and represents a logistical variable only. Automotive AEC-Q200 qualification, where present in substitute parts, represents an additional quality assurance level and does not preclude substitution in non-automotive applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (Preferred for Drop-In Replacement):

CR0603-FX-6811ELF (Bourns Inc.) and RC0603FR-076K81L (YAGEO) are direct electrical and mechanical equivalents to the RC1608F6811CS. Both maintain identical specifications across all critical parameters and carry Active product status with ROHS3 compliance. These parts are suitable for direct substitution without design modification.

Qualified Alternatives (Automotive-Grade):

AC0603FR-076K81L (YAGEO), CRCW06036K81FKEA (Vishay Dale), ERJ-3EKF6811V (Panasonic Electronic Components), and RMCF0603FT6K81 (Stackpole Electronics Inc) are functionally equivalent with the addition of AEC-Q200 automotive qualification. These parts meet all electrical and mechanical requirements of the RC1608F6811CS and carry enhanced quality assurance documentation. Selection of automotive-qualified alternatives is appropriate for applications requiring higher reliability standards or when sourcing from automotive-qualified supply chains.

Inventory Availability:

RC0603FR-076K81L (YAGEO) maintains the highest inventory level at 1,055,856 pieces, followed by RMCF0603FT6K81 (Stackpole Electronics Inc) at 277,137 pieces. CR0603-FX-6811ELF (Bourns Inc.) carries 79,773 pieces. These inventory levels support both immediate and sustained production requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC0603FR-076K81L for RC1608F6811CS in my design?

A: Yes. RC0603FR-076K81L is a direct equivalent. Both components share identical electrical specifications (6.81 kOhms ±1%, 0.1W), mechanical package (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and compliance status (ROHS3). No design modification is required.

Q: What is the difference between the standard RC1608F6811CS and the AEC-Q200 qualified alternatives?

A: The RC1608F6811CS does not carry AEC-Q200 automotive qualification. Substitute parts AC0603FR-076K81L, CRCW06036K81FKEA, ERJ-3EKF6811V, and RMCF0603FT6K81 include AEC-Q200 qualification, which documents compliance with automotive reliability and quality standards. Electrical and mechanical specifications remain identical. AEC-Q200 qualification does not restrict use in non-automotive applications.

Q: Are there packaging format differences between substitute parts?

A: Yes. The RC1608F6811CS is supplied in Cut Tape (CT) format. Substitute parts are available in Cut Tape (CT), Tape & Reel (TR), or Digi-Reel formats. Packaging format affects supply chain logistics and handling but does not alter electrical or mechanical compatibility. Component selection should be based on manufacturing process requirements (manual pick-and-place versus automated reel-fed assembly).

Q: Can I use CRCW06036K81FKEA if my design specifies RC1608F6811CS?

A: Yes. CRCW06036K81FKEA meets all electrical and mechanical requirements. Physical dimensions show minor variation (0.061" L x 0.033" W versus 0.063" L x 0.031" W, and 0.020" height versus 0.022" height), which remain within standard PCB footprint tolerances for 0603 packages. Verify PCB layout clearances if space constraints are critical.

Q: Which substitute part has the best availability?

A: RC0603FR-076K81L (YAGEO) offers the highest inventory at 1,055,856 pieces. RMCF0603FT6K81 (Stackpole Electronics Inc) provides the second-highest availability at 277,137 pieces. Both support high-volume production schedules.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance and REACH Unaffected status, matching the RC1608F6811CS compliance profile.