RC1608F2551CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F2551CS is a 2.55 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 maintains Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements necessitate alternative qualified sources.

Substiute Parts

RC1608F2551CS

Samsung Electro-MechanicsIn Stock: 966RC1608F2551CS Datasheet

Current PartRFQ

CR0603-FX-2551ELF

Bourns Inc.In Stock: 15441CR0603-FX-2551ELF Datasheet

DirectRFQ

RC0603FR-072K55L

YAGEOIn Stock: 963314RC0603FR-072K55L Datasheet

DirectRFQ

AC0603FR-072K55L

YAGEOIn Stock: 6771AC0603FR-072K55L Datasheet

SimilarRFQ

CRCW06032K55FKEA

Vishay DaleIn Stock: 31090CRCW06032K55FKEA Datasheet

SimilarRFQ

ERJ-3EKF2551V

Panasonic Electronic ComponentsIn Stock: 111410ERJ-3EKF2551V Datasheet

SimilarRFQ

RMCF0603FT2K55

Stackpole Electronics IncIn Stock: 182710RMCF0603FT2K55 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC1608F2551CS are qualified based on strict electrical and mechanical parameter matching. The substitution logic is organized into two categories:

Direct Substitutes maintain identical specifications across all critical parameters: 2.55 kOhms resistance value, ±1% tolerance, 0.1W power rating, 0603 package format, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, moisture resistant construction, and ROHS3 compliance. These parts are functionally interchangeable without design modification.

Similar Substitutes meet all electrical and mechanical requirements but include additional automotive qualification (AEC-Q200 rating). These parts exceed the base specification of the RC1608F2551CS through enhanced reliability screening and qualification protocols. AEC-Q200 certification indicates compliance with automotive industry standards for component reliability and performance in demanding environments.

The following parameters determine substitution eligibility:

• Resistance value: 2.55 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.1W / 1/10W (exact match required)
• Package: 0603 (1608 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature: -55°C to 155°C (exact match required)
• RoHS compliance: ROHS3 (minimum requirement)

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (CR0603-FX-2551ELF, RC0603FR-072K55L) provide equivalent functionality with identical electrical and mechanical specifications. These parts are suitable for applications where the base specification of the RC1608F2551CS is sufficient. All direct substitutes maintain Active product status and ROHS3 compliance.

Similar Substitutes with AEC-Q200 Qualification (AC0603FR-072K55L, CRCW06032K55FKEA, ERJ-3EKF2551V, RMCF0603FT2K55) exceed the base specification through automotive-grade qualification. These parts are appropriate for applications requiring enhanced reliability screening, extended qualification testing, or automotive industry compliance. AEC-Q200 certification indicates compliance with automotive standards for temperature cycling, moisture resistance, and long-term reliability. Selection of AEC-Q200 qualified parts does not introduce incompatibility with designs specified for standard industrial-grade components; rather, it provides additional assurance of component performance under demanding conditions.

All substitute parts listed maintain identical resistance value, tolerance, power rating, package format, composition, temperature coefficient, operating temperature range, and RoHS compliance status. Inventory availability varies by manufacturer and part number, with RC0603FR-072K55L (YAGEO) offering the highest stock level at 963,270 pieces.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC1608F2551CS with any of the listed parts without design modification?

A: Yes. All listed substitute parts meet the identical electrical and mechanical specifications of the RC1608F2551CS. Direct substitutes (CR0603-FX-2551ELF and RC0603FR-072K55L) are functionally equivalent. Similar substitutes with AEC-Q200 qualification provide enhanced reliability without introducing incompatibility.

Q: What is the difference between Direct and Similar substitutes?

A: Direct substitutes match all specifications of the RC1608F2551CS exactly. Similar substitutes include additional automotive AEC-Q200 qualification, which represents enhanced reliability screening and qualification protocols. Both categories are electrically and mechanically compatible.

Q: Does selecting an AEC-Q200 qualified part affect circuit performance?

A: No. AEC-Q200 qualification indicates enhanced reliability screening and testing protocols. The electrical and mechanical specifications remain identical to the base part. AEC-Q200 parts are suitable for any application accepting the RC1608F2551CS.

Q: Are there any dimensional differences between substitute parts?

A: Substitute parts conform to the 0603 (1608 Metric) package standard. Minor dimensional variations exist within standard tolerances (for example, CRCW06032K55FKEA dimensions are 0.061" L x 0.033" W versus 0.063" L x 0.031" W for the primary part). These variations remain within 0603 package specifications and do not affect PCB layout or assembly compatibility.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 rating, meaning they do not require special moisture control during storage or handling prior to assembly.

Q: Which substitute part offers the best inventory availability?

A: RC0603FR-072K55L (YAGEO) provides the highest stock level at 963,270 pieces. RMCF0603FT2K55 (Stackpole Electronics Inc) offers 182,638 pieces. ERJ-3EKF2551V (Panasonic) provides 111,313 pieces.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, meeting environmental and regulatory requirements equivalent to the RC1608F2551CS.