RC1608F5491CS Equivalent & Substitute Parts

Part Overview

The RC1608F5491CS is a 5.49 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This surface mount device is rated for 0.1W (1/10W) power dissipation with moisture resistant construction and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are necessary to address supply chain continuity, inventory availability, and application-specific requirements such as automotive qualification or alternative packaging formats.

Substiute Parts

RC1608F5491CS

Samsung Electro-MechanicsIn Stock: 1158RC1608F5491CS Datasheet

Current PartRFQ

CR0603-FX-5491ELF

Bourns Inc.In Stock: 17270CR0603-FX-5491ELF Datasheet

DirectRFQ

CRG0603F5K49

TE Connectivity Passive ProductIn Stock: 33805CRG0603F5K49 Datasheet

DirectRFQ

RC0603FR-075K49L

YAGEOIn Stock: 700285RC0603FR-075K49L Datasheet

DirectRFQ

AC0603FR-075K49L

YAGEOIn Stock: 3393AC0603FR-075K49L Datasheet

SimilarRFQ

CRCW06035K49FKEA

Vishay DaleIn Stock: 24570CRCW06035K49FKEA Datasheet

SimilarRFQ

ERJ-3EKF5491V

Panasonic Electronic ComponentsIn Stock: 142586ERJ-3EKF5491V Datasheet

SimilarRFQ

RMCF0603FT5K49

Stackpole Electronics IncIn Stock: 1254481RMCF0603FT5K49 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC1608F5491CS is determined by strict equivalence across the following critical parameters: resistance value (5.49 kOhms), tolerance (±1%), power rating (0.1W), package format (0603 / 1608 Metric), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). All substitute parts listed maintain identical electrical specifications and mechanical dimensions within the 0603 package standard. Moisture sensitivity level (MSL 1) and RoHS3 compliance are consistent across all alternatives. Substitutes are grouped into two categories: direct equivalents with identical feature sets and similar parts with additional automotive AEC-Q200 qualification or alternative packaging configurations. Dimensional variations within the 0603 standard (length 0.061" to 0.063", width 0.031" to 0.033", height 0.020" to 0.022") do not preclude substitution for standard PCB assembly processes.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the RC1608F5491CS across standard PCB assembly processes. Selection between direct equivalents (CR0603-FX-5491ELF, CRG0603F5K49, RC0603FR-075K49L) and automotive-qualified alternatives (AC0603FR-075K49L, CRCW06035K49FKEA, ERJ-3EKF5491V, RMCF0603FT5K49) depends on application requirements and supply availability.

For non-automotive applications requiring standard industrial compliance, the direct equivalents from Bourns Inc., TE Connectivity, and YAGEO (RC0603FR-075K49L) provide full functional substitution with ROHS3 compliance and MSL 1 rating.

For automotive applications or designs requiring AEC-Q200 qualification, the YAGEO AC0603FR-075K49L, Vishay Dale CRCW06035K49FKEA, Panasonic ERJ-3EKF5491V, and Stackpole RMCF0603FT5K49 are qualified alternatives. The Stackpole RMCF0603FT5K49 offers the highest inventory availability (1,254,462 units) among automotive-qualified options.

Packaging format consideration: ERJ-3EKF5491V is supplied in Cut Tape and Digi-Reel format; all other substitutes are supplied in standard Tape & Reel format compatible with automated pick-and-place assembly.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC1608F5491CS with any of the listed parts without design changes?

A: Yes. All listed substitute parts maintain identical resistance (5.49 kOhms), tolerance (±1%), power rating (0.1W), package format (0603), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Direct PCB footprint compatibility is maintained across all alternatives.

Q: What is the difference between direct equivalents and automotive-qualified substitutes?

A: Direct equivalents (CR0603-FX-5491ELF, CRG0603F5K49, RC0603FR-075K49L) provide standard industrial-grade performance with ROHS3 compliance. Automotive-qualified substitutes (AC0603FR-075K49L, CRCW06035K49FKEA, ERJ-3EKF5491V, RMCF0603FT5K49) carry AEC-Q200 certification, indicating compliance with automotive reliability and qualification standards. Automotive-qualified parts are suitable for both automotive and industrial applications.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within the 0603 package standard. Length ranges from 0.061" to 0.063" (1.55mm to 1.60mm), width from 0.031" to 0.033" (0.80mm to 0.85mm), and height from 0.020" to 0.022" (0.50mm to 0.55mm). These variations are within standard PCB assembly tolerances and do not affect substitution compatibility.

Q: Which substitute offers the best supply availability?

A: The Stackpole Electronics RMCF0603FT5K49 provides the highest inventory availability at 1,254,462 units. The YAGEO RC0603FR-075K49L offers 700,192 units for non-automotive applications.

Q: Can I use ERJ-3EKF5491V if my assembly process requires Tape & Reel packaging?

A: The ERJ-3EKF5491V is supplied in Cut Tape and Digi-Reel format. If your automated assembly equipment requires standard Tape & Reel packaging, select from CR0603-FX-5491ELF, CRG0603F5K49, RC0603FR-075K49L, AC0603FR-075K49L, CRCW06035K49FKEA, or RMCF0603FT5K49.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the RC1608F5491CS compliance status.

Q: What is MSL 1 rating and does it affect substitution?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake requirements. All substitute parts maintain MSL 1 rating, ensuring identical moisture handling requirements and storage conditions.