RC1608F44R2CS Equivalent & Substitute Parts

Part Overview

The RC1608F44R2CS is a 44.2 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 with moisture-resistant construction and unlimited moisture sensitivity level (MSL 1). The part is RoHS3 compliant and REACH unaffected, suitable for general industrial and consumer applications requiring precision resistive elements in compact surface-mount form factors.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain optimization requires alternative sourcing, or when design specifications permit selection from qualified alternative manufacturers meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Value	Unit
Resistance	44.2	Ohms
Tolerance	±1%	-
Power Rating	0.1	W (1/10W)
Package / Case	0603 (1608 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Moisture Sensitivity Level	1 (Unlimited)	-
RoHS Status	ROHS3 Compliant	-
Number of Terminations	2	-

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F44R2CS is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Resistance value: 44.2 Ohms
Tolerance: ±1%
Power rating: 0.1W (1/10W)
Package: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Termination count: 2
RoHS3 compliance

All substitute parts listed meet these mandatory parameters without exception. Substitute parts are grouped into three categories based on product availability and feature set:

Direct Substitute: RC0603FR-0744R2L (YAGEO) - Identical electrical and mechanical specifications with active product status and high inventory availability.

Upgrade Substitute: MCR03ERTF44R2 (Rohm Semiconductor) - Meets all mandatory parameters but carries discontinued status at DiGi Electronics, indicating limited future availability.

Similar Substitutes: CRCW060344R2FKEA (Vishay Dale), ERJ-3EKF44R2V (Panasonic Electronic Components), and RMCF0603FT44R2 (Stackpole Electronics Inc) - All meet mandatory parameters with additional automotive AEC-Q200 qualification, providing enhanced reliability for automotive applications.

Parameter Comparison

Parameter	RC1608F44R2CS (Samsung)	RC0603FR-0744R2L (YAGEO)	MCR03ERTF44R2 (Rohm)	CRCW060344R2FKEA (Vishay)	ERJ-3EKF44R2V (Panasonic)	RMCF0603FT44R2 (Stackpole)
Resistance	44.2 Ω	44.2 Ω	44.2 Ω	44.2 Ω	44.2 Ω	44.2 Ω
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.1W	0.1W	0.1W	0.1W	0.1W	0.1W
Package	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)	0603 (1608 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C
Operating Temperature	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C
Moisture Sensitivity	MSL 1	MSL 1	MSL 1	MSL 1	MSL 1	MSL 1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Terminations	2	2	2	2	2	2
Product Status	Active	Active	Discontinued at DiGi Electronics	Active	Active	Active
Automotive Rating	-	-	-	AEC-Q200	AEC-Q200	AEC-Q200

Engineering Selection Recommendations

Primary Selection: RC0603FR-0744R2L (YAGEO) is the recommended direct substitute for RC1608F44R2CS. This part maintains identical electrical and mechanical specifications, carries active product status with high inventory availability (96,297 pieces), and provides equivalent moisture-resistant thick film construction. Selection of this part ensures continuity of supply and eliminates compatibility risk.

Alternative Selection for General Applications: MCR03ERTF44R2 (Rohm Semiconductor) meets all mandatory electrical and mechanical parameters. However, this part is discontinued at DiGi Electronics, indicating restricted future availability. Selection should be limited to applications where immediate supply is available and long-term procurement is not critical.

Selection for Automotive Applications: CRCW060344R2FKEA (Vishay Dale), ERJ-3EKF44R2V (Panasonic Electronic Components), and RMCF0603FT44R2 (Stackpole Electronics Inc) are suitable for designs requiring automotive-grade components. All three parts carry AEC-Q200 qualification in addition to meeting base electrical and mechanical specifications. These parts are active products with substantial inventory availability. Selection among these three is determined by preferred supplier relationships and procurement lead times.

Compliance Verification: All listed substitute parts maintain RoHS3 compliance and REACH unaffected status, matching the regulatory posture of the primary part. No additional compliance verification is required for substitution.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0744R2L be used as a direct replacement for RC1608F44R2CS without circuit modification?

A: Yes. RC0603FR-0744R2L is a direct substitute meeting all electrical parameters (44.2 Ohms ±1%, 0.1W, ±100ppm/°C, -55 to 155°C operating range) and mechanical specifications (0603 package, 2 terminations, identical dimensions). No circuit modification is required.

Q: What is the difference between the Samsung RC1608F44R2CS and the YAGEO RC0603FR-0744R2L?

A: Both parts are functionally equivalent. The primary differences are manufacturer identity and series designation (RC versus RC_L). Electrical performance, package format, and compliance certifications are identical. YAGEO offers higher inventory availability.

Q: Are the automotive-rated parts (Vishay, Panasonic, Stackpole) suitable for non-automotive applications?

A: Yes. Automotive-rated parts meeting AEC-Q200 qualification exceed the requirements of general industrial and consumer applications. These parts can be used in any application where the base electrical and mechanical specifications are met. AEC-Q200 qualification represents enhanced reliability and does not restrict use to automotive designs.

Q: What is the significance of the "Discontinued at DiGi Electronics" status for MCR03ERTF44R2?

A: Discontinued status indicates that Rohm Semiconductor has ceased active distribution through DiGi Electronics. While inventory may remain available through alternative channels, future procurement cannot be guaranteed. This part should be selected only when immediate supply is confirmed and long-term availability is not required.

Q: Are there dimensional differences between substitute parts that affect PCB layout?

A: Dimensional variations exist within tolerance. CRCW060344R2FKEA (Vishay) and RMCF0603FT44R2 (Stackpole) have length 0.061" (1.55mm) versus 0.063" (1.60mm) for Samsung and YAGEO. Height differences range from 0.020" to 0.022" maximum seated height. These variations fall within standard 0603 package tolerance and do not require PCB layout modification for standard footprints.

Q: Can these parts be mixed in the same production run?

A: Yes. All listed parts meet identical electrical specifications and package standards. Mixed sourcing is permissible from an engineering standpoint. However, manufacturing process control and traceability documentation should reflect the use of multiple part numbers.

Q: What packaging formats are available for these substitute parts?

A: RC1608F44R2CS and most substitutes are supplied in Tape & Reel (TR) format. MCR03ERTF44R2 (Rohm) is available in Cut Tape (CT) and Digi-Reel® format. Packaging format selection depends on assembly equipment compatibility and order quantity requirements.

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