RC1608F5112CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F5112CS is a 51.1 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format. This component 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 and is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or specific application certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC1608F5112CS

Samsung Electro-MechanicsIn Stock: 795RC1608F5112CS Datasheet

Current PartRFQ

CR0603-FX-5112ELF

Bourns Inc.In Stock: 82790CR0603-FX-5112ELF Datasheet

DirectRFQ

RC0603FR-0751K1L

YAGEOIn Stock: 406112RC0603FR-0751K1L Datasheet

DirectRFQ

AC0603FR-0751K1L

YAGEOIn Stock: 10937AC0603FR-0751K1L Datasheet

SimilarRFQ

CRCW060351K1FKEA

Vishay DaleIn Stock: 5000346CRCW060351K1FKEA Datasheet

SimilarRFQ

CRCW060351K1FKTA

Vishay DaleIn Stock: 40291CRCW060351K1FKTA Datasheet

SimilarRFQ

ERJ-3EKF5112V

Panasonic Electronic ComponentsIn Stock: 132940ERJ-3EKF5112V Datasheet

SimilarRFQ

RMCF0603FT51K1

Stackpole Electronics IncIn Stock: 250114RMCF0603FT51K1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F5112CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 51.1 kOhms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Package: 0603 (1608 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Moisture sensitivity level: 1 (Unlimited)
• Number of terminations: 2

All identified substitute parts meet these mandatory parameters. Substitute parts are further categorized by additional certifications and compliance attributes:

Direct Substitutes (identical electrical and mechanical specifications, alternative packaging):

• CR0603-FX-5112ELF (Bourns Inc.)
• RC0603FR-0751K1L (YAGEO)

Similar Substitutes (identical core specifications with additional automotive certification):

• AC0603FR-0751K1L (YAGEO) – AEC-Q200 qualified
• CRCW060351K1FKEA (Vishay Dale) – AEC-Q200 qualified
• CRCW060351K1FKTA (Vishay Dale) – AEC-Q200 qualified
• ERJ-3EKF5112V (Panasonic Electronic Components) – AEC-Q200 qualified
• RMCF0603FT51K1 (Stackpole Electronics Inc) – AEC-Q200 qualified

Parameter Comparison

Engineering Selection Recommendations

For Standard Industrial Applications: Select CR0603-FX-5112ELF (Bourns Inc.) or RC0603FR-0751K1L (YAGEO) as direct equivalents. Both maintain ROHS3 compliance and identical electrical specifications. CR0603-FX-5112ELF offers higher inventory availability (82,769 pcs) compared to RC0603FR-0751K1L (406,071 pcs).

For Automotive Applications Requiring AEC-Q200 Certification: Select from AC0603FR-0751K1L (YAGEO), CRCW060351K1FKEA (Vishay Dale), ERJ-3EKF5112V (Panasonic Electronic Components), or RMCF0603FT51K1 (Stackpole Electronics Inc). All four parts carry AEC-Q200 automotive qualification and ROHS3 compliance.

Compliance Consideration: CRCW060351K1FKTA (Vishay Dale) is RoHS non-compliant and REACH Affected. This part is suitable only for applications where RoHS3 compliance is not required.

Packaging Consideration: The main part RC1608F5112CS is supplied in Tape & Reel format. Direct substitutes CR0603-FX-5112ELF and RC0603FR-0751K1L are available in Cut Tape & Digi-Reel format. Verify packaging compatibility with assembly equipment specifications before selection.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F5112CS with CR0603-FX-5112ELF in my design?

A: Yes. CR0603-FX-5112ELF is a direct electrical and mechanical equivalent. Both components share identical resistance (51.1 kΩ), tolerance (±1%), power rating (0.1W), package (0603), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and MSL rating (1). The primary difference is packaging format: CR0603-FX-5112ELF is supplied in Cut Tape & Digi-Reel format versus Tape & Reel for the original part.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes (CR0603-FX-5112ELF, RC0603FR-0751K1L) match all electrical and mechanical parameters without additional certifications. Similar substitutes carry AEC-Q200 automotive qualification in addition to matching core specifications. AEC-Q200 certification indicates qualification for automotive applications with enhanced reliability testing.

Q: Can I use an AEC-Q200 qualified part in a non-automotive application?

A: Yes. AEC-Q200 qualified parts meet or exceed standard industrial specifications. Parts such as ERJ-3EKF5112V, RMCF0603FT51K1, and the YAGEO AC0603FR-0751K1L are suitable for any application requiring the 51.1 kΩ ±1% 0.1W 0603 resistor specification.

Q: Is CRCW060351K1FKTA suitable for my application?

A: CRCW060351K1FKTA is electrically and mechanically equivalent but is RoHS non-compliant and REACH Affected. Use this part only if your application explicitly permits non-RoHS components. For RoHS3 compliant designs, select CRCW060351K1FKEA instead.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life without moisture bake-out requirements. All listed substitute parts carry MSL 1 rating, ensuring consistent moisture handling across all options.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within 0603 package tolerance. The main part and most substitutes specify 0.063" L × 0.031" W (1.60mm × 0.80mm). CRCW060351K1FKEA and CRCW060351K1FKTA specify 0.061" L × 0.033" W (1.55mm × 0.85mm), and RMCF0603FT51K1 specifies 0.061" L × 0.031" W (1.55mm × 0.80mm). These variations remain within standard 0603 package specifications and do not affect PCB footprint compatibility.

Q: Which substitute offers the best inventory availability?

A: CRCW060351K1FKEA (Vishay Dale) offers the highest inventory with 5,000,300 pcs in stock. RC0603FR-0751K1L (YAGEO) provides 406,071 pcs. For immediate availability with automotive qualification, ERJ-3EKF5112V (Panasonic) stocks 132,898 pcs.