RC1608F3922CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F3922CS is a 39.2 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 847 pieces currently in stock. The RC1608F3922CS serves as a standard general-purpose resistor for industrial and consumer electronics applications requiring moisture-resistant thick film construction.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when alternative suppliers offer improved lead times, or when design requirements specify additional certifications such as automotive AEC-Q200 qualification. This reference provides direct equivalents and qualified substitutes that maintain electrical and mechanical compatibility.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for direct substitution:

Mandatory Matching Parameters:

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

Substitute Categories:

Direct Equivalents maintain all electrical and mechanical specifications with identical performance characteristics. These parts are interchangeable without design modification.

Upgrade Substitutes are parts that have been discontinued at the distributor level but remain functionally equivalent. These are suitable for applications where supply chain continuity is not critical.

Similar Substitutes include automotive-qualified variants (AEC-Q200 certified) that exceed the base specification. These parts are compatible but include additional certifications and may have minor dimensional variations within tolerance. AEC-Q200 qualification indicates suitability for automotive applications with enhanced reliability requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	MSL	RoHS	Product Status	Packaging Type
RC1608F3922CS	Samsung Electro-Mechanics	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
CR0603-FX-3922ELF	Bourns Inc.	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
RC0603FR-0739K2L	YAGEO	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
MCR03ERTF3922	Rohm Semiconductor	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Discontinued at DiGi Electronics	Cut Tape & Digi-Reel
AC0603FR-0739K2L	YAGEO	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
CRCW060339K2FKEA	Vishay Dale	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
CRCW060339K2FKEB	Vishay Dale	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Discontinued at DiGi Electronics	Tape & Reel
ERJ-3EKF3922V	Panasonic Electronic Components	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
RMCF0603FT39K2	Stackpole Electronics Inc	39.2 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel

Engineering Selection Recommendations

Direct Equivalent Selection (Preferred for Standard Applications):

CR0603-FX-3922ELF (Bourns Inc.) and RC0603FR-0739K2L (YAGEO) are direct equivalents with Active product status and full availability. Both maintain identical electrical specifications and RoHS3 compliance. Selection between these options is based on supplier availability and procurement lead times.

Automotive-Qualified Alternatives (For AEC-Q200 Applications):

AC0603FR-0739K2L, CRCW060339K2FKEA, ERJ-3EKF3922V, and RMCF0603FT39K2 are automotive-grade substitutes with AEC-Q200 certification. These parts exceed the base specification and are suitable for automotive and high-reliability applications. All maintain Active product status except CRCW060339K2FKEB, which is discontinued at the distributor level.

Discontinued Parts (Limited Availability):

MCR03ERTF3922 (Rohm Semiconductor) and CRCW060339K2FKEB (Vishay Dale) are discontinued at DiGi Electronics but remain functionally equivalent. These parts should be selected only when existing inventory is available and future replenishment is not required.

Compliance Verification:

All listed substitutes maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard handling and storage procedures. No additional environmental certifications beyond RoHS3 are specified for the base RC1608F3922CS, making all listed substitutes compliant for general industrial applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute CR0603-FX-3922ELF for RC1608F3922CS without design changes?

A: Yes. CR0603-FX-3922ELF is a direct equivalent with identical electrical specifications (39.2 kΩ ±1%, 0.1W), package format (0603), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). No design modification is required.

Q: What is the difference between the standard RC1608F3922CS and the automotive-qualified variants?

A: The automotive-qualified variants (AC0603FR-0739K2L, CRCW060339K2FKEA, ERJ-3EKF3922V, RMCF0603FT39K2) carry AEC-Q200 certification, indicating compliance with automotive reliability standards. Electrically and mechanically, they are equivalent to the base part. Selection of automotive-qualified parts is necessary only when the application requires AEC-Q200 compliance.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within tolerance specifications. CRCW060339K2FKEA and CRCW060339K2FKEB have slightly different length and height specifications compared to the base part, but these variations remain within standard 0603 package tolerances and do not affect PCB footprint compatibility. RMCF0603FT39K2 has a slightly reduced length (1.55mm vs 1.60mm) but maintains standard 0603 mounting compatibility.

Q: Can I use MCR03ERTF3922 if it is discontinued?

A: MCR03ERTF3922 is functionally equivalent but discontinued at DiGi Electronics. It should be selected only if existing inventory is available and future replenishment is not required. For new designs or ongoing production, select from Active status parts: CR0603-FX-3922ELF, RC0603FR-0739K2L, or automotive-qualified alternatives.

Q: What packaging formats are available for these substitutes?

A: Most substitutes are supplied in Tape & Reel (TR) format for automated assembly. MCR03ERTF3922 is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with your assembly process before selection.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance, matching the base RC1608F3922CS specification. No additional environmental certifications are required for standard industrial applications.

Q: Which substitute offers the highest inventory availability?

A: RMCF0603FT39K2 (Stackpole Electronics Inc) offers the highest inventory with 213,585 pieces in stock, followed by RC0603FR-0739K2L (YAGEO) with 398,331 pieces. Both are Active status parts suitable for immediate procurement.

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