RC1608F9091CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F9091CS is a 9.09 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 functional interchangeability in circuit designs.

Substiute Parts

RC1608F9091CS

Samsung Electro-MechanicsIn Stock: 1521RC1608F9091CS Datasheet

Current PartRFQ

CR0603-FX-9091ELF

Bourns Inc.In Stock: 44949CR0603-FX-9091ELF Datasheet

DirectRFQ

RC0603FR-079K09L

YAGEOIn Stock: 111894RC0603FR-079K09L Datasheet

DirectRFQ

AC0603FR-079K09L

YAGEOIn Stock: 81714AC0603FR-079K09L Datasheet

SimilarRFQ

AF0603FR-079K09L

YAGEOIn Stock: 11107AF0603FR-079K09L Datasheet

SimilarRFQ

CRCW06039K09FKEA

Vishay DaleIn Stock: 22924CRCW06039K09FKEA Datasheet

SimilarRFQ

CRCW06039K09FKTA

Vishay DaleIn Stock: 5581CRCW06039K09FKTA Datasheet

SimilarRFQ

ERJ-3EKF9091V

Panasonic Electronic ComponentsIn Stock: 146783ERJ-3EKF9091V Datasheet

SimilarRFQ

RMCF0603FT9K09

Stackpole Electronics IncIn Stock: 96167RMCF0603FT9K09 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F9091CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 9.09 kOhms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 0.1W / 1/10W (exact match)
• Temperature coefficient: ±100ppm/°C (exact match)
• Operating temperature range: -55°C to 155°C (exact match)

Mechanical Equivalence Requirements:

• Package / Case: 0603 (1608 Metric) (exact match)
• Composition: Thick Film (exact match)
• Number of terminations: 2 (exact match)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match)

Compliance Requirements:

• RoHS Status: ROHS3 Compliant (preferred for direct substitution)
• REACH Status: REACH Unaffected or REACH Affected (both acceptable based on application requirements)

All identified substitute parts meet these core criteria. Variations in physical dimensions (length, width, height) within the 0603 package specification and differences in automotive certifications (AEC-Q200) represent secondary differentiators that do not prevent functional substitution but may influence selection based on application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Preferred):

CR0603-FX-9091ELF (Bourns Inc.) and RC0603FR-079K09L (YAGEO) are direct functional equivalents to RC1608F9091CS. Both parts match all electrical and mechanical specifications with ROHS3 compliance and identical moisture sensitivity ratings. These parts are suitable for applications where general-purpose resistive elements are required without automotive qualification requirements.

Automotive-Qualified Substitutes:

AC0603FR-079K09L, AF0603FR-079K09L (YAGEO), CRCW06039K09FKEA (Vishay Dale), ERJ-3EKF9091V (Panasonic Electronic Components), and RMCF0603FT9K09 (Stackpole Electronics Inc) are functionally equivalent with additional AEC-Q200 automotive qualification. These parts maintain all core electrical and mechanical parameters while providing enhanced reliability certification for automotive and high-reliability applications. Selection among these automotive-qualified options depends on supply chain availability and specific application requirements.

Conditional Substitute:

CRCW06039K09FKTA (Vishay Dale) is electrically and mechanically equivalent but carries RoHS non-compliant status and REACH Affected designation. This part is suitable only for applications where RoHS3 compliance is not mandated or where legacy component specifications are explicitly required. Use of this part requires verification against applicable regulatory and procurement standards.

Selection Criteria:

• For new designs and RoHS-compliant applications: Select from CR0603-FX-9091ELF, RC0603FR-079K09L, AC0603FR-079K09L, AF0603FR-079K09L, CRCW06039K09FKEA, ERJ-3EKF9091V, or RMCF0603FT9K09
• For automotive applications: Select from AC0603FR-079K09L, AF0603FR-079K09L, CRCW06039K09FKEA, ERJ-3EKF9091V, or RMCF0603FT9K09
• For general-purpose applications without automotive requirements: CR0603-FX-9091ELF or RC0603FR-079K09L

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-079K09L replace RC1608F9091CS directly in production?

A: Yes. RC0603FR-079K09L (YAGEO) is a direct functional equivalent with matching resistance (9.09 kOhms), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and RoHS3 compliance. No circuit redesign or validation is required for direct substitution.

Q: What is the difference between automotive-qualified and non-automotive versions?

A: Automotive-qualified versions (AC0603FR-079K09L, AF0603FR-079K09L, CRCW06039K09FKEA, ERJ-3EKF9091V, RMCF0603FT9K09) carry AEC-Q200 certification, indicating compliance with automotive reliability and environmental stress testing standards. Non-automotive versions (CR0603-FX-9091ELF, RC0603FR-079K09L) do not carry this certification. Electrical and mechanical specifications remain identical. Selection depends on application requirements and industry standards compliance.

Q: Are there physical dimension differences between substitute parts?

A: Minor variations exist within the 0603 package specification. Most parts specify 0.063" L x 0.031" W (1.60mm x 0.80mm). CRCW06039K09FKEA specifies 0.061" L x 0.033" W (1.55mm x 0.85mm), and RMCF0603FT9K09 specifies 0.061" L x 0.031" W (1.55mm x 0.80mm). Height variations range from 0.020" to 0.022" (0.50mm to 0.55mm). These variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility or circuit performance.

Q: Why is CRCW06039K09FKTA listed as a conditional substitute?

A: CRCW06039K09FKTA carries RoHS non-compliant status and REACH Affected designation, unlike the primary RC1608F9091CS specification (ROHS3 Compliant, REACH Unaffected). This part is functionally equivalent but restricted to applications where RoHS3 compliance is not required or where legacy component specifications are explicitly mandated. Verification against applicable regulatory and procurement standards is required before use.

Q: Can I use ERJ-3EKF9091V in place of RC1608F9091CS in a consumer electronics application?

A: Yes. ERJ-3EKF9091V (Panasonic Electronic Components) is electrically and mechanically equivalent with ROHS3 compliance and unlimited moisture sensitivity level. The AEC-Q200 automotive qualification does not restrict use in consumer applications; it indicates additional reliability testing that exceeds consumer-grade requirements. Direct substitution is valid.

Q: What packaging formats are available for these substitute parts?

A: RC1608F9091CS is supplied in Cut Tape (CT) format. All identified substitute parts are supplied in Tape & Reel (TR) format. This difference affects procurement and handling but does not impact electrical or mechanical compatibility. Verify packaging requirements against assembly process specifications before procurement.

Q: Are all substitute parts currently in stock?

A: Inventory status varies by supplier and part number. CR0603-FX-9091ELF (Bourns) shows 44,929 pcs, RC0603FR-079K09L (YAGEO) shows 111,819 pcs, ERJ-3EKF9091V (Panasonic) shows 146,679 pcs, and RMCF0603FT9K09 (Stackpole) shows 96,084 pcs. Verify current inventory with component suppliers before finalizing procurement decisions.