RC1608F6814CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F6814CS is a 6.81 MOhms ±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 applications requiring high-value resistive elements with moisture resistance and tight tolerance specifications. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and compliance certifications align with the original specification, enabling component procurement flexibility and supply chain continuity.

Substiute Parts

RC1608F6814CS

Samsung Electro-MechanicsIn Stock: 980RC1608F6814CS Datasheet

Current PartRFQ

RMCF0603FT6M81

Stackpole Electronics IncIn Stock: 5041RMCF0603FT6M81 Datasheet

UpgradeRFQ

CRCW06036M81FKEA

Vishay DaleIn Stock: 24047CRCW06036M81FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1608F6814CS are classified based on strict alignment with the following critical parameters:

Electrical Parameters (Must Match):

• Resistance value: 6.81 MOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Composition: Thick Film

Mechanical Parameters (Must Match):

• Package / Case: 0603 (1608 Metric)
• Number of Terminations: 2
• Moisture Sensitivity Level: 1 (Unlimited)

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• Operating Temperature Range: -55°C to 155°C minimum

Variable Parameters (Allowed to Differ):

• Temperature Coefficient (within acceptable range for application)
• Physical dimensions (minor variations within 0603 specification tolerance)
• Manufacturer and series designation
• Specific feature set (e.g., Automotive AEC-Q200 certification)

The identified substitute parts RMCF0603FT6M81 (Stackpole Electronics Inc) and CRCW06036M81FKEA (Vishay Dale) meet all mandatory electrical and mechanical criteria while maintaining full compliance with environmental and regulatory standards.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RC1608F6814CS - Samsung Electro-Mechanics): Select this part when the original design specification explicitly requires Samsung Electro-Mechanics sourcing or when moisture-resistant thick film composition is the primary design criterion. Product status is Active with full ROHS3 compliance and unlimited moisture sensitivity rating.

Upgrade Selection (RMCF0603FT6M81 - Stackpole Electronics Inc): This substitute provides equivalent electrical performance with Automotive AEC-Q200 certification. The temperature coefficient specification is ±200ppm/°C compared to the original ±100ppm/°C. Select this part when automotive-grade reliability is required and temperature coefficient tolerance of ±200ppm/°C is acceptable for the application. Product status is Active with full ROHS3 compliance.

Alternative Selection (CRCW06036M81FKEA - Vishay Dale): This substitute matches the original temperature coefficient specification at ±100ppm/°C and includes Automotive AEC-Q200 certification. Physical dimensions show minor variation (0.061" L x 0.033" W versus 0.063" L x 0.031" W for the original), remaining within 0603 package tolerance. Select this part when automotive-grade reliability and matched temperature coefficient are required. Product status is Active with full ROHS3 compliance.

All three parts maintain identical electrical specifications (6.81 MOhms ±1%, 0.1W), identical package format (0603 / 1608 Metric), and identical operating temperature range (-55°C to 155°C). Selection between these parts is determined by manufacturer preference, supply availability, and automotive certification requirements.

Frequently Asked Questions (FAQ)

Q: Can RMCF0603FT6M81 be used as a direct replacement for RC1608F6814CS?

A: Yes. Both parts share identical resistance (6.81 MOhms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), and operating temperature range (-55°C to 155°C). The temperature coefficient differs (±200ppm/°C versus ±100ppm/°C); this substitution is valid when the application tolerates the higher temperature coefficient specification.

Q: Can CRCW06036M81FKEA be used as a direct replacement for RC1608F6814CS?

A: Yes. Both parts share identical resistance (6.81 MOhms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), operating temperature range (-55°C to 155°C), and temperature coefficient (±100ppm/°C). Minor physical dimension variations remain within 0603 package specification tolerance.

Q: What is the significance of the Automotive AEC-Q200 certification on the substitute parts?

A: Automotive AEC-Q200 certification indicates the part meets automotive industry reliability and quality standards. This certification is not present on the original RC1608F6814CS but is present on both substitute parts. This represents an enhancement in qualification level, not a limitation. Parts with AEC-Q200 certification are suitable for both general-purpose and automotive applications.

Q: Are all three parts RoHS3 compliant?

A: Yes. RC1608F6814CS, RMCF0603FT6M81, and CRCW06036M81FKEA are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

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

A: RC1608F6814CS and CRCW06036M81FKEA both specify ±100ppm/°C. RMCF0603FT6M81 specifies ±200ppm/°C. Temperature coefficient defines the rate of resistance change with temperature. The lower value (±100ppm/°C) indicates tighter temperature stability. Select RMCF0603FT6M81 only when the application can tolerate the higher temperature coefficient specification.

Q: Are the physical dimensions identical across all three parts?

A: Physical dimensions show minor variations within 0603 package tolerance. RC1608F6814CS: 0.063" L x 0.031" W (1.60mm x 0.80mm). RMCF0603FT6M81: 0.061" L x 0.031" W (1.55mm x 0.80mm). CRCW06036M81FKEA: 0.061" L x 0.033" W (1.55mm x 0.85mm). All variations remain within standard 0603 (1608 Metric) package specification tolerance and do not affect PCB layout compatibility.

Q: Can these parts be used interchangeably in production?

A: Yes, provided the application requirements are met. All three parts are Active product status with identical electrical specifications and package format. Interchangeability is determined by design tolerance for temperature coefficient variation and any specific manufacturer qualification requirements in the design specification.