RC1608F39R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F39R2CS is a 39.2 Ohm ±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 currently in stock with 1167 pieces available. The part is designed for general-purpose SMD applications requiring moisture-resistant thick film construction with standard industrial temperature range operation.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for functionally identical components from different manufacturers that meet the same electrical and mechanical parameters.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	39.2 Ohms	Core electrical specification
Tolerance	±1%	Precision requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package / Case	0603 (1608 Metric)	Physical form factor
Composition	Thick Film	Construction technology
Temperature Coefficient	±100ppm/°C	Stability specification
Operating Temperature Range	-55°C ~ 155°C	Environmental limits
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Handling and storage requirement
RoHS Status	ROHS3 Compliant	Environmental compliance

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F39R2CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance Value: 39.2 Ohms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.1W / 1/10W (exact match required)
Package / Case: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature Coefficient: ±100ppm/°C (exact match required)
Operating Temperature Range: -55°C ~ 155°C (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Packaging Format Variations: Substitute parts are classified into two packaging categories: Cut Tape (CT) and Tape & Reel (TR). These represent different delivery and handling formats but do not affect electrical or mechanical compatibility.

Additional Qualifications: Some substitute parts include automotive-grade AEC-Q200 certification. This represents an enhanced qualification level and does not prevent substitution in non-automotive applications. Parts with AEC-Q200 certification are suitable for use in applications where the original part is specified.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Composition	Temp Coeff	Temp Range	MSL	RoHS	Packaging Format	Product Status	Inventory
RC1608F39R2CS	Samsung Electro-Mechanics	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Cut Tape (CT)	Active	1167 Pcs
CR0603-FX-39R2ELF	Bourns Inc.	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel (TR)	Active	50513 Pcs
RC0603FR-0739R2L	YAGEO	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel (TR)	Active	281032 Pcs
MCR03ERTF39R2	Rohm Semiconductor	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Cut Tape (CT) & Digi-Reel®	Discontinued at DiGi Electronics	1649 Pcs
AC0603FR-0739R2L	YAGEO	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel (TR)	Active	10100 Pcs
CRCW060339R2FKEA	Vishay Dale	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel (TR)	Active	26977 Pcs
ERJ-3EKF39R2V	Panasonic Electronic Components	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel (TR)	Active	121790 Pcs
RMCF0603FT39R2	Stackpole Electronics Inc	39.2 Ω	±1%	0.1W	0603	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Tape & Reel (TR)	Active	6985 Pcs

Engineering Selection Recommendations

Direct Substitutes (Functionally Equivalent):

All listed substitute parts meet the complete electrical and mechanical specification set of the RC1608F39R2CS. Selection among direct substitutes is based on:

Product Status: CR0603-FX-39R2ELF, RC0603FR-0739R2L, AC0603FR-0739R2L, CRCW060339R2FKEA, ERJ-3EKF39R2V, and RMCF0603FT39R2 are all Active status parts. MCR03ERTF39R2 is Discontinued at DiGi Electronics and should be avoided for new designs requiring long-term availability.
Compliance Certifications: All parts are ROHS3 Compliant and REACH Unaffected. Parts designated with AEC-Q200 qualification (AC0603FR-0739R2L, CRCW060339R2FKEA, ERJ-3EKF39R2V, RMCF0603FT39R2) meet automotive industry standards and are suitable for both automotive and general industrial applications.
Packaging Format: The original part RC1608F39R2CS is supplied in Cut Tape (CT) format. Substitute parts are available in Tape & Reel (TR) format, which is standard for high-volume manufacturing. CR0603-FX-39R2ELF and MCR03ERTF39R2 offer Cut Tape options for lower-volume requirements.
Inventory Availability: RC0603FR-0739R2L (YAGEO) offers the highest inventory level at 281032 pieces, followed by ERJ-3EKF39R2V (Panasonic) at 121790 pieces. These parts provide optimal supply chain security for production planning.

Recommended Primary Substitutes:

RC0603FR-0739R2L (YAGEO): Highest inventory availability, Active status, Tape & Reel packaging suitable for automated assembly
ERJ-3EKF39R2V (Panasonic): Highest inventory level, AEC-Q200 qualified, Active status
CRCW060339R2FKEA (Vishay Dale): AEC-Q200 qualified, Active status, established supply chain

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F39R2CS with any of the listed parts without circuit redesign?

A: Yes. All listed substitute parts are electrically and mechanically equivalent. They share identical resistance value (39.2 Ohms), tolerance (±1%), power rating (0.1W), package format (0603), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3). No circuit redesign is required.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape (CT) packaging supplies components in small quantities on individual tape segments, suitable for prototyping and low-volume assembly. Tape & Reel (TR) packaging supplies components on continuous reels, optimized for high-speed automated pick-and-place assembly equipment. Both formats contain identical components; the difference is in delivery and handling format only.

Q: Are AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification represents an enhanced reliability and testing standard established for automotive applications. Parts meeting this qualification are fully suitable for general industrial, consumer, and other non-automotive applications. Using AEC-Q200 qualified parts in non-automotive designs provides additional quality assurance without any disadvantage.

Q: Why is MCR03ERTF39R2 marked as "Discontinued at DiGi Electronics"?

A: MCR03ERTF39R2 is listed as Discontinued at DiGi Electronics, indicating that this specific distributor has ended active stocking of this part number. This does not necessarily mean the part is unavailable from all sources, but it indicates reduced long-term supply chain support. For new designs and production planning, selection of Active status parts is recommended.

Q: Can I mix different substitute parts in the same production batch?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. Mixing different manufacturer parts in the same batch does not affect circuit performance or reliability. However, for traceability and quality control documentation, it is standard practice to maintain consistent part sourcing within a single production lot when possible.

Q: What is Moisture Sensitivity Level (MSL) 1, and why does it matter?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and requires no special moisture control during storage or handling. This is the least restrictive moisture sensitivity classification. All listed parts share MSL 1 rating, meaning they can be stored and handled under standard industrial conditions without requiring desiccant packaging or baking procedures.

Q: Are there any dimensional differences between substitute parts?

A: All parts conform to 0603 (1608 Metric) package specification. Minor dimensional variations exist within tolerance: CRCW060339R2FKEA has dimensions of 0.061" L x 0.033" W (1.55mm x 0.85mm) with height 0.020" (0.50mm), while most other parts are 0.063" L x 0.031" W (1.60mm x 0.80mm) with height 0.022" (0.55mm). These variations remain within standard 0603 package tolerances and do not affect PCB layout or assembly compatibility.

Q: Which substitute part offers the best supply chain security?

A: RC0603FR-0739R2L (YAGEO) with 281032 pieces in inventory provides the highest availability. ERJ-3EKF39R2V (Panasonic) with 121790 pieces offers the second-highest inventory level. Both parts are Active status from established manufacturers with global distribution networks, providing optimal supply chain security for production planning.

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