RC1608F685CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F685CS is a 6.8 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 RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring high-value resistive elements with tight tolerance specifications. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and application-specific feature enhancements such as automotive qualification.

Substiute Parts

RC1608F685CS

Samsung Electro-MechanicsIn Stock: 1093RC1608F685CS Datasheet

Current PartRFQ

RC0603FR-076M8L

YAGEOIn Stock: 2882RC0603FR-076M8L Datasheet

DirectRFQ

KTR03EZPF6804

Rohm SemiconductorIn Stock: 1001KTR03EZPF6804 Datasheet

UpgradeRFQ

AC0603FR-076M8L

YAGEOIn Stock: 38337AC0603FR-076M8L Datasheet

SimilarRFQ

CRCW06036M80FKEA

Vishay DaleIn Stock: 13245CRCW06036M80FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F685CS is determined by strict equivalence across the following critical parameters: resistance value (6.8 MOhms), tolerance (±1%), power rating (0.1W), package format (0603/1608 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and regulatory compliance (RoHS3, REACH Unaffected, EAR99). All identified substitute parts meet these core electrical and mechanical specifications. Substitute parts are further categorized by feature enhancements: direct equivalents maintain base specifications, upgrade variants add automotive AEC-Q200 qualification, and similar variants combine automotive qualification with alternative moisture resistance or dimensional tolerances within acceptable ranges.

Parameter Comparison

Engineering Selection Recommendations

RC0603FR-076M8L (YAGEO Direct Equivalent): This part provides direct electrical and mechanical equivalence to the RC1608F685CS with identical specifications across all critical parameters. Selection is appropriate for applications where automotive qualification is not required and standard moisture resistance is sufficient. Current inventory of 2,776 pieces supports high-volume procurement.

KTR03EZPF6804 (Rohm Upgrade Variant): This part adds automotive AEC-Q200 qualification and high-voltage capability while maintaining all base electrical specifications. Selection is appropriate for automotive applications, industrial environments with elevated voltage stress, or designs requiring enhanced reliability certification. Current inventory of 952 pieces is available.

AC0603FR-076M8L (YAGEO Automotive Variant): This part combines automotive AEC-Q200 qualification with moisture-resistant thick film construction, matching the environmental protection features of the original part. Selection is appropriate for automotive and industrial applications requiring both qualification and environmental protection. Current inventory of 38,307 pieces provides maximum supply availability.

CRCW06036M80FKEA (Vishay Dale Automotive Variant): This part provides automotive AEC-Q200 qualification with dimensional tolerances within acceptable ranges (1.55mm x 0.85mm vs. 1.60mm x 0.80mm, height 0.50mm vs. 0.55mm). Selection is appropriate for automotive applications where Vishay Dale supply chain preference exists. Current inventory of 13,191 pieces is available.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-076M8L be used as a direct replacement for RC1608F685CS?

A: Yes. RC0603FR-076M8L meets all electrical and mechanical specifications of RC1608F685CS, including 6.8 MOhms resistance, ±1% tolerance, 0.1W power rating, 0603 package format, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, RoHS3 compliance, and MSL 1 rating. No design modifications are required.

Q: What is the difference between the standard RC1608F685CS and the automotive-qualified alternatives?

A: The RC1608F685CS is a general-purpose component with moisture-resistant thick film construction. Automotive-qualified alternatives (KTR03EZPF6804, AC0603FR-076M8L, CRCW06036M80FKEA) add AEC-Q200 certification, indicating compliance with automotive reliability and environmental stress testing standards. These variants are suitable for automotive and high-reliability applications.

Q: Are there dimensional differences between substitute parts?

A: All substitute parts use the 0603 (1608 Metric) package format. CRCW06036M80FKEA has minor dimensional variations: 1.55mm x 0.85mm (vs. 1.60mm x 0.80mm) and 0.50mm height (vs. 0.55mm). These variations remain within standard 0603 package tolerances and do not affect PCB layout or reflow soldering processes.

Q: Which substitute part has the highest current inventory?

A: AC0603FR-076M8L (YAGEO) has the highest inventory at 38,307 pieces, providing maximum supply security and shortest lead times for high-volume applications.

Q: Can KTR03EZPF6804 be used in non-automotive applications?

A: Yes. KTR03EZPF6804 exceeds the specifications of RC1608F685CS through automotive AEC-Q200 qualification and high-voltage capability. It is fully compatible with general-purpose applications and provides enhanced reliability margins.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (RC0603FR-076M8L, KTR03EZPF6804, AC0603FR-076M8L, CRCW06036M80FKEA) are RoHS3 compliant and REACH unaffected, matching the regulatory status of RC1608F685CS.