RCS3216F4022CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F4022CS is a 40.2 kOhms ±1% 0.25W (1/4W) thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with 1,141 pieces currently in stock. The RCS series features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C temperature range with ±100ppm/°C temperature coefficient.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, package size, and operating temperature range. Alternative sources ensure design flexibility, supply chain continuity, and application-specific feature requirements such as automotive qualification or enhanced pulse withstanding capability.

Key Parameters

Parameter	Specification
Resistance Value	40.2 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
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

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

Mandatory Matching Parameters:

Resistance Value: 40.2 kOhms
Tolerance: ±1%
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: 1 (Unlimited)

Power Rating Consideration: Substitute parts are grouped into two categories based on power rating:

Category A - Direct 0.25W (1/4W) Equivalents: Parts with identical 0.25W power rating maintain full electrical and thermal equivalence with the main part. These include CR1206-FX-4022ELF (Bourns), CRCW120640K2FKEA (Vishay Dale), ERJ-8ENF4022V (Panasonic), RC1206FR-0740K2L (YAGEO), and RMCF1206FT40K2 (Stackpole).

Category B - Enhanced 0.75W (3/4W) Variant: CRCW120640K2FKEAHP (Vishay Dale) provides increased power dissipation capability (0.75W) while maintaining all other electrical and mechanical specifications. This part is suitable for applications requiring higher thermal margin or pulse withstanding performance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Features	Product Status	Inventory (Pcs)
RCS3216F4022CS	Samsung Electro-Mechanics	40.2 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Anti-Sulfur, Moisture Resistant	Active	1,141
CR1206-FX-4022ELF	Bourns Inc.	40.2 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	40,122
CRCW120640K2FKEA	Vishay Dale	40.2 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	9,018
CRCW120640K2FKEAHP	Vishay Dale	40.2 kOhms	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Pulse Withstanding	Active	53,999
ERJ-8ENF4022V	Panasonic Electronic Components	40.2 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Not For New Designs	35,827
RC1206FR-0740K2L	YAGEO	40.2 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active	51,144
RMCF1206FT40K2	Stackpole Electronics Inc	40.2 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active	65,595

Engineering Selection Recommendations

For Standard Applications (0.25W Requirement):

CR1206-FX-4022ELF (Bourns) and RC1206FR-0740K2L (YAGEO) are recommended as primary substitutes. Both maintain Active product status with high inventory availability (40,122 and 51,144 pieces respectively) and provide moisture-resistant thick film construction equivalent to the main part.

For Automotive Applications (AEC-Q200 Requirement):

CRCW120640K2FKEA (Vishay Dale), RMCF1206FT40K2 (Stackpole), and ERJ-8ENF4022V (Panasonic) carry Automotive AEC-Q200 qualification. RMCF1206FT40K2 is preferred for new designs due to Active status and highest inventory (65,595 pieces). ERJ-8ENF4022V carries "Not For New Designs" status and should be avoided in new product development.

For Enhanced Thermal Performance (0.75W Requirement):

CRCW120640K2FKEAHP (Vishay Dale) provides increased power dissipation (0.75W) with Automotive AEC-Q200 qualification and pulse withstanding capability. This variant is suitable for applications requiring higher thermal margin while maintaining identical electrical specifications and 1206 package compatibility. Inventory availability is highest among all substitutes (53,999 pieces).

Compliance Verification:

All listed substitutes maintain ROHS3 compliance, MSL Level 1 (Unlimited), and REACH Unaffected status, ensuring regulatory equivalence with the main part.

Frequently Asked Questions (FAQ)

Q: Can CRCW120640K2FKEAHP (0.75W) be used as a direct replacement for RCS3216F4022CS (0.25W)?

A: Yes. The 0.75W part is electrically and mechanically compatible. The higher power rating provides additional thermal margin without affecting circuit performance. Physical dimensions remain within 1206 package specification, and all electrical parameters (resistance, tolerance, temperature coefficient, operating range) are identical.

Q: What is the difference between parts with and without AEC-Q200 qualification?

A: AEC-Q200 qualification indicates automotive-grade reliability testing and qualification. Parts with this rating (CRCW120640K2FKEA, RMCF1206FT40K2, ERJ-8ENF4022V, CRCW120640K2FKEAHP) are suitable for automotive applications. Parts without this rating (CR1206-FX-4022ELF, RC1206FR-0740K2L) are suitable for general industrial and consumer applications.

Q: Why is ERJ-8ENF4022V marked "Not For New Designs"?

A: This product status indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. While existing inventory is available (35,827 pieces), this part should not be selected for new applications. RMCF1206FT40K2 or CRCW120640K2FKEA are recommended alternatives with equivalent specifications and Active status.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Most substitutes are supplied in Tape & Reel packaging. CRCW120640K2FKEA is available in Cut Tape (CT) & Digi-Reel® packaging. Verify packaging format with supplier specifications for your procurement requirements.

Q: What is the significance of MSL Level 1 (Unlimited)?

A: MSL Level 1 indicates unlimited shelf life without moisture baking requirements. All listed parts, including the main part and substitutes, carry this rating, ensuring equivalent moisture sensitivity handling and storage conditions.

Q: Can I substitute based on physical dimensions alone?

A: No. While all parts share the 1206 (3216 Metric) package designation, physical dimensions vary slightly (height ranges from 0.024" to 0.030"). Substitution must be based on complete electrical specification equivalence: resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. Physical compatibility is verified through package designation matching.

Q: Which substitute offers the best inventory availability?

A: RMCF1206FT40K2 (Stackpole) provides the highest inventory at 65,595 pieces, followed by CRCW120640K2FKEAHP (Vishay Dale) at 53,999 pieces. Both are Active status parts suitable for immediate procurement.

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