RCS3216F45R3CS Equivalent & Substitute Parts

Part Overview

The RCS3216F45R3CS is a 45.3 Ohm ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component is classified as Active and features anti-sulfur and moisture-resistant properties suitable for general industrial and consumer applications. Equivalent and substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when alternative sourcing strategies are required to optimize procurement and reduce component lead times.

Key Parameters

Parameter	Value
Resistance	45.3 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RCS3216F45R3CS is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 45.3 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package type: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Number of terminations: 2
RoHS compliance: ROHS3 Compliant
MSL rating: 1 (Unlimited)

All substitute parts listed meet these mandatory parameters. Variations in physical dimensions (length, width, height) and packaging format (Tape & Reel vs. Cut Tape) do not affect electrical equivalence and are acceptable for direct substitution in circuit applications.

Parameter Comparison

Parameter	RCS3216F45R3CS (Samsung)	CR1206-FX-45R3ELF (Bourns)	CRCW120645R3FKEA (Vishay Dale)	ERJ-8ENF45R3V (Panasonic)	RC1206FR-0745R3L (YAGEO)
Resistance	45.3 Ohms	45.3 Ohms	45.3 Ohms	45.3 Ohms	45.3 Ohms
Tolerance	±1%	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W	0.25W
Package / Case	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Number of Terminations	2	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Not For New Designs	Active

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The CR1206-FX-45R3ELF (Bourns Inc.), CRCW120645R3FKEA (Vishay Dale), and RC1206FR-0745R3L (YAGEO) are all classified as Active products and are suitable for new designs and ongoing production applications. These three parts provide equivalent electrical performance and full compliance with ROHS3 and REACH requirements.

Secondary Substitute (Not For New Designs):

The ERJ-8ENF45R3V (Panasonic Electronic Components) is classified as Not For New Designs. While this part meets all electrical and mechanical specifications, its product status restricts its use to legacy applications, maintenance, and repair of existing systems. This part should not be selected for new circuit designs or new production programs.

Compliance Considerations:

All substitute parts carry ROHS3 Compliant and REACH Unaffected designations, matching the compliance profile of the primary RCS3216F45R3CS. The CRCW120645R3FKEA and ERJ-8ENF45R3V include automotive AEC-Q200 qualification, providing additional reliability assurance for automotive and harsh-environment applications.

Frequently Asked Questions (FAQ)

Q: Can CR1206-FX-45R3ELF be used as a direct replacement for RCS3216F45R3CS?

A: Yes. Both parts share identical electrical specifications (45.3 Ohms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C operating range) and are packaged in the 1206 (3216 Metric) form factor. The CR1206-FX-45R3ELF is an Active product suitable for new designs.

Q: What is the difference between the CRCW120645R3FKEA and other substitutes?

A: The CRCW120645R3FKEA is qualified to automotive AEC-Q200 standards and has a slightly lower maximum seated height (0.024" vs. 0.026-0.030" for other options). This qualification makes it suitable for automotive and mission-critical applications requiring enhanced reliability documentation.

Q: Why is ERJ-8ENF45R3V marked as "Not For New Designs"?

A: The ERJ-8ENF45R3V carries a "Not For New Designs" product status, indicating that Panasonic has discontinued active development and promotion of this part. While it remains electrically equivalent and available in inventory, it should be reserved for legacy system support and repair applications only.

Q: Are there physical dimension differences between substitute parts?

A: Yes. Physical dimensions vary slightly across manufacturers: length ranges from 0.122" to 0.126", and maximum seated height ranges from 0.024" to 0.030". These variations do not affect electrical performance or circuit compatibility. Verify PCB footprint tolerances if space constraints are critical.

Q: Do all substitutes have the same packaging options?

A: No. The RCS3216F45R3CS is supplied in standard packaging format, while substitutes are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats. Packaging format does not affect component equivalence but may influence procurement and assembly processes.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant and REACH Unaffected, matching the compliance profile of the primary part.

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