RCS3216F433CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F433CS is a 43 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture-resistant characteristics. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support design flexibility, inventory optimization, and supply chain continuity.

Key Parameters

Parameter	Value
Resistance	43 kOhms
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for RCS3216F433CS are qualified based on the following mandatory parameters:

Electrical Equivalence:

Resistance value: 43 kOhms
Tolerance: ±1%
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical & Package Compatibility:

Package type: 1206 (3216 Metric)
Number of terminations: 2
Composition: Thick Film

Compliance & Environmental:

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status

Substitutes are grouped into two categories based on power rating alignment:

Category A - Direct Equivalents (0.25W / 1/4W): Parts with identical power rating to the main component.

Category B - Higher Power Rating (0.75W / 3/4W): Parts with increased power dissipation capability, suitable for applications requiring thermal margin while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Product Status	RoHS	MSL
RCS3216F433CS	Samsung Electro-Mechanics	43 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	ROHS3	1
AC1206FR-0743KL	YAGEO	43 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	ROHS3	1
CR1206-FX-4302ELF	Bourns Inc.	43 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	ROHS3	1
CRCW120643K0FKEA	Vishay Dale	43 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	ROHS3	1
CRCW120643K0FKEAHP	Vishay Dale	43 kΩ	±1%	0.75	1206	±100ppm/°C	-55~155°C	Active	ROHS3	1
ERJ-8ENF4302V	Panasonic Electronic Components	43 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Not For New Designs	ROHS3	1
RC1206FR-0743KL	YAGEO	43 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Active	ROHS3	1

Engineering Selection Recommendations

Primary Substitutes (Active Status, Direct Power Rating Match):

AC1206FR-0743KL (YAGEO), CR1206-FX-4302ELF (Bourns Inc.), CRCW120643K0FKEA (Vishay Dale), and RC1206FR-0743KL (YAGEO) are qualified direct substitutes. All maintain Active product status, identical electrical specifications, and 1206 package compatibility. Selection among these options is based on packaging format availability (Tape & Reel or Cut Tape) and inventory requirements.

Higher Power Rating Alternative:

CRCW120643K0FKEAHP (Vishay Dale) provides 0.75W power rating while maintaining all other electrical and mechanical parameters. This option is suitable for applications requiring increased thermal margin or pulse withstanding capability.

Legacy Component:

ERJ-8ENF4302V (Panasonic Electronic Components) carries "Not For New Designs" status. This part meets all electrical and mechanical specifications but should not be selected for new product development.

Frequently Asked Questions (FAQ)

Q1: Can I substitute RCS3216F433CS with any of the listed parts in existing designs?

A: Yes. All listed parts with Active product status (AC1206FR-0743KL, CR1206-FX-4302ELF, CRCW120643K0FKEA, RC1206FR-0743KL) are electrically and mechanically equivalent. They share identical resistance, tolerance, temperature coefficient, operating temperature range, and 1206 package dimensions. Substitution is valid without circuit redesign.

Q2: What is the difference between 0.25W and 0.75W rated parts?

A: Power rating indicates maximum continuous power dissipation capability. The 0.25W rating (main part and most substitutes) is suitable for standard applications. The 0.75W variant (CRCW120643K0FKEAHP) provides three times greater power dissipation capacity, useful in high-current or high-temperature environments. Both maintain identical electrical characteristics and package size.

Q3: Are there packaging format differences among substitutes?

A: Yes. Substitutes are available in Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® formats. Packaging format does not affect electrical or mechanical performance; selection depends on assembly process requirements and inventory management preferences.

Q4: Why is ERJ-8ENF4302V marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development for this part. While it meets all technical specifications and remains electrically compatible, it should not be selected for new product designs to ensure long-term supply availability and manufacturer support.

Q5: Do all substitutes meet automotive qualification standards?

A: No. AC1206FR-0743KL, CRCW120643K0FKEA, CRCW120643K0FKEAHP, and ERJ-8ENF4302V carry AEC-Q200 automotive qualification. The main part (RCS3216F433CS) and RC1206FR-0743KL do not list this certification. AEC-Q200 qualification is required only for automotive applications.

Q6: Are all parts RoHS3 compliant?

A: Yes. All listed parts, including the main component and all substitutes, are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited). They are suitable for standard PCB assembly processes without special moisture handling requirements.

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