RC1608F4422CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F4422CS is a 44.2 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 full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring precision resistive elements in compact surface-mount form factors. Equivalent and substitute parts are necessary to address supply chain continuity, inventory optimization, and design flexibility across multiple manufacturers while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	44.2 kOhms	Core electrical specification
Tolerance	±1%	Precision grade requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package / Case	0603 (1608 Metric)	Physical form factor
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Temperature stability
Operating Temperature Range	-55°C to 155°C	Environmental operating limits
Number of Terminations	2	Connection points
RoHS Status	ROHS3 Compliant	Environmental compliance
Moisture Sensitivity Level	1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608F4422CS 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: 44.2 kOhms
Tolerance: ±1%
Power rating: 0.1W
Package designation: 0603 (1608 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Number of terminations: 2
RoHS3 compliance status
MSL rating: 1 (Unlimited)

Substitute parts are categorized into three groups based on functional equivalence and product status:

Direct Equivalents maintain identical specifications and general-purpose application suitability. Upgrade Equivalents provide the same electrical performance but may have discontinued status at specific distributors. Similar Equivalents meet all core electrical and mechanical requirements but include additional certifications (AEC-Q200 automotive qualification) that do not prevent substitution in non-automotive applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp Range	Composition	RoHS3	MSL	Product Status	Features
RC1608F4422CS	Samsung Electro-Mechanics	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Moisture Resistant
CR0603-FX-4422ELF	Bourns Inc.	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Moisture Resistant
RC0603FR-0744K2L	YAGEO	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Moisture Resistant
MCR03ERTF4422	Rohm Semiconductor	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Discontinued at DiGi Electronics	Standard
AC0603FR-0744K2L	YAGEO	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Automotive AEC-Q200, Moisture Resistant
CRCW060344K2FKEA	Vishay Dale	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Automotive AEC-Q200
CRCW060344K2FKEB	Vishay Dale	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Discontinued at DiGi Electronics	Automotive AEC-Q200
ERJ-3EKF4422V	Panasonic Electronic Components	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Automotive AEC-Q200
RMCF0603FT44K2	Stackpole Electronics Inc	44.2 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Thick Film	Yes	1	Active	Automotive AEC-Q200

Engineering Selection Recommendations

For General-Purpose Applications (Non-Automotive):

The CR0603-FX-4422ELF (Bourns Inc.) and RC0603FR-0744K2L (YAGEO) are recommended as primary direct equivalents. Both parts maintain Active product status, identical electrical specifications, and moisture-resistant thick film construction. These selections ensure supply chain continuity without introducing additional automotive-grade certifications that are unnecessary for non-automotive circuit designs.

For Automotive Applications:

The ERJ-3EKF4422V (Panasonic Electronic Components), AC0603FR-0744K2L (YAGEO), CRCW060344K2FKEA (Vishay Dale), and RMCF0603FT44K2 (Stackpole Electronics Inc) are qualified substitutes. All four parts carry AEC-Q200 automotive qualification while maintaining identical core electrical parameters. These parts are suitable for automotive-grade circuit implementations where component qualification standards are mandatory.

Regarding Discontinued Parts:

MCR03ERTF4422 (Rohm Semiconductor) and CRCW060344K2FKEB (Vishay Dale) are listed as discontinued at DiGi Electronics. While these parts remain electrically equivalent, their discontinued status may limit future procurement availability. Selection of these parts should be evaluated against long-term supply chain requirements.

Packaging Considerations:

The RC1608F4422CS is supplied in Tape & Reel (TR) format. CR0603-FX-4422ELF is also supplied in TR format. RC0603FR-0744K2L is supplied in Cut Tape (CT) & Digi-Reel® format. All other substitute parts are supplied in TR format. Packaging format selection depends on assembly equipment compatibility and procurement volume requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC1608F4422CS with CR0603-FX-4422ELF in my circuit design?

A: Yes. CR0603-FX-4422ELF is a direct equivalent. Both parts share identical resistance value (44.2 kOhms), tolerance (±1%), power rating (0.1W), package designation (0603), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and RoHS3 compliance. No circuit redesign or re-qualification is required.

Q: What is the difference between the standard RC1608F4422CS and the AEC-Q200 qualified alternatives?

A: The RC1608F4422CS is a general-purpose thick film resistor without automotive qualification. Parts such as ERJ-3EKF4422V, AC0603FR-0744K2L, CRCW060344K2FKEA, and RMCF0603FT44K2 carry AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards. Electrically and mechanically, all parts are identical. AEC-Q200 qualification is required only for automotive applications; general-purpose applications do not require this certification.

Q: Are there any physical dimension differences between substitute parts?

A: Minor dimensional variations exist within the 0603 package specification. The RC1608F4422CS, CR0603-FX-4422ELF, and ERJ-3EKF4422V specify 0.063" L x 0.031" W (1.60mm x 0.80mm). CRCW060344K2FKEA specifies 0.061" L x 0.033" W (1.55mm x 0.85mm). CRCW060344K2FKEB specifies 0.063" L x 0.033" W (1.60mm x 0.85mm). RMCF0603FT44K2 specifies 0.061" L x 0.031" W (1.55mm x 0.80mm). These variations remain within 0603 package tolerance and do not affect PCB layout or assembly compatibility.

Q: What is MSL 1 (Unlimited) and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life and requires no special moisture-control handling during storage or assembly. All listed substitute parts carry MSL 1 rating, eliminating moisture-related procurement or assembly constraints.

Q: Can I use MCR03ERTF4422 if it is discontinued at DiGi Electronics?

A: MCR03ERTF4422 remains electrically and mechanically equivalent to RC1608F4422CS. However, discontinued status at DiGi Electronics indicates reduced distributor availability. Selection of this part should account for long-term supply chain risk. Alternative active-status parts such as CR0603-FX-4422ELF or RC0603FR-0744K2L are recommended for new designs requiring extended production support.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All listed substitute parts carry RoHS3 Compliant status, matching the RC1608F4422CS compliance level. No additional environmental qualification is required for any substitution.

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

A: RC1608F4422CS and most substitute parts are supplied in Tape & Reel (TR) format suitable for automated assembly. RC0603FR-0744K2L is supplied in Cut Tape (CT) & Digi-Reel® format. Packaging selection should align with assembly equipment specifications and procurement volume requirements.

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