RCS3216F333CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F333CS is a 33 kOhms ±1% 0.25W (1/4W) thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1206 (3216 Metric) package. This component features anti-sulfur and moisture-resistant construction, operating across the temperature range of -55°C to 155°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit selection from multiple qualified manufacturers. Substitution must maintain electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package dimensions, termination count) while considering product status and applicable certifications.

Key Parameters

Parameter	Value	Substitution Criticality
Resistance	33 kOhms	Critical - Must Match Exactly
Tolerance	±1%	Critical - Must Match Exactly
Power Rating	0.25W (1/4W)	Critical - Must Match or Exceed
Package / Case	1206 (3216 Metric)	Critical - Must Match Exactly
Composition	Thick Film	Critical - Defines Performance Class
Temperature Coefficient	±100ppm/°C	Critical - Must Match Exactly
Operating Temperature Range	-55°C ~ 155°C	Critical - Must Match or Exceed
Number of Terminations	2	Critical - Must Match Exactly
RoHS Status	ROHS3 Compliant	Regulatory - Must Match
Moisture Sensitivity Level	MSL 1 (Unlimited)	Handling - Must Match or Better

Substitute Part Grouping Explanation

Substitution logic for the RCS3216F333CS is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Mandatory Matching Parameters:

Resistance value: 33 kOhms
Tolerance: ±1%
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C
Number of Terminations: 2
RoHS3 Compliance

Power Rating Consideration: Substitute parts rated at 0.25W (1/4W) are direct equivalents. Parts rated at 0.75W (3/4W) are acceptable substitutes as they exceed the power requirement while maintaining all other electrical specifications and the same package footprint.

Product Status Consideration: Parts with "Active" product status are preferred for new designs. Parts marked "Not For New Designs" are acceptable substitutes for existing production or maintenance applications only.

Certifications: Automotive AEC-Q200 certification is an additional qualification present in several substitutes but is not required for general industrial applications. Anti-sulfur features provide enhanced environmental protection in corrosive atmospheres.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	Features	Product Status	RoHS
RCS3216F333CS	Samsung Electro-Mechanics	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Anti-Sulfur, Moisture Resistant	Active	ROHS3
AC1206FR-0733KL	YAGEO	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
CR1206-FX-3302ELF	Bourns Inc.	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Moisture Resistant	Active	ROHS3
CRCW120633K0FKEA	Vishay Dale	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Active	ROHS3
CRCW120633K0FKEAHP	Vishay Dale	33 kΩ	±1%	0.75	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Pulse Withstanding	Active	ROHS3
ERJ-8ENF3302V	Panasonic Electronic Components	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Not For New Designs	ROHS3
ERJ-S08F3302V	Panasonic Electronic Components	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Anti-Sulfur, Automotive AEC-Q200	Active	ROHS3
RC1206FR-0733KL	YAGEO	33 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Moisture Resistant	Active	ROHS3

Engineering Selection Recommendations

Primary Substitutes (Direct Equivalents - Active Status):

CR1206-FX-3302ELF (Bourns Inc.) and RC1206FR-0733KL (YAGEO) are direct electrical and mechanical equivalents with identical 0.25W power ratings and active product status. These parts are suitable for new designs and existing production applications.

AC1206FR-0733KL (YAGEO) and CRCW120633K0FKEA (Vishay Dale) provide automotive-grade AEC-Q200 qualification in addition to base specifications. These are appropriate for applications requiring automotive-level reliability and traceability.

ERJ-S08F3302V (Panasonic Electronic Components) combines anti-sulfur protection with automotive AEC-Q200 certification and active product status, offering enhanced environmental performance matching the original part's anti-sulfur feature.

Higher Power Rating Substitute:

CRCW120633K0FKEAHP (Vishay Dale) provides 0.75W power rating with automotive AEC-Q200 certification and pulse withstanding capability. This part is suitable for applications where higher power dissipation margin or transient pulse tolerance is required, while maintaining identical package footprint and all other electrical specifications.

Legacy Substitute (Existing Production Only):

ERJ-8ENF3302V (Panasonic Electronic Components) is marked "Not For New Designs" and should be used only for maintenance, repair, or continuation of existing production runs where design freeze is required.

Regulatory Compliance:

All listed substitutes maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity level, ensuring compatibility with current environmental and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RCS3216F333CS with a part having different power rating?

A: Yes, substitute parts with equal or higher power ratings are acceptable. The CRCW120633K0FKEAHP (0.75W) exceeds the 0.25W requirement while maintaining identical package dimensions and all electrical specifications. Lower power ratings are not acceptable substitutes.

Q: What is the significance of the 1206 package designation?

A: The 1206 package (3216 Metric) specifies the physical dimensions: 0.126" length × 0.063" width (3.20mm × 1.60mm). All listed substitutes use this identical package, ensuring PCB footprint compatibility and automated assembly compatibility. Substitutes with different package designations are not interchangeable.

Q: Are automotive AEC-Q200 certified parts required for this application?

A: Automotive AEC-Q200 certification is not mandatory for general industrial applications. However, several substitutes (AC1206FR-0733KL, CRCW120633K0FKEA, ERJ-8ENF3302V, ERJ-S08F3302V) include this certification, which provides additional qualification for automotive and high-reliability environments. Selection depends on application requirements.

Q: What is the difference between anti-sulfur and standard moisture-resistant features?

A: Anti-sulfur protection provides enhanced resistance to corrosive sulfur compounds in industrial and marine environments. The original RCS3216F333CS and ERJ-S08F3302V both include anti-sulfur features. Standard moisture-resistant parts (CR1206-FX-3302ELF, AC1206FR-0733KL, RC1206FR-0733KL, CRCW120633K0FKEA) provide moisture protection without specific anti-sulfur treatment.

Q: Can I use ERJ-8ENF3302V marked "Not For New Designs"?

A: ERJ-8ENF3302V is acceptable for maintenance, repair, or continuation of existing production where design freeze is required. For new designs, select from parts with "Active" product status: CR1206-FX-3302ELF, AC1206FR-0733KL, CRCW120633K0FKEA, CRCW120633K0FKEAHP, ERJ-S08F3302V, or RC1206FR-0733KL.

Q: Are all substitutes available in the same packaging formats?

A: Packaging formats vary. Most substitutes are supplied in Tape & Reel (TR) format. CR1206-FX-3302ELF and CRCW120633K0FKEA are available in Cut Tape (CT) & Digi-Reel® format. RC1206FR-0733KL is available in Cut Tape (CT) & Digi-Reel® format. Verify packaging availability with your supplier for your specific procurement requirements.

Q: What tolerance does the ±1% specification guarantee?

A: The ±1% tolerance indicates that the actual resistance value will be within 1% of the nominal 33 kOhms value, resulting in a range of 32.67 kOhms to 33.33 kOhms. All listed substitutes maintain this identical ±1% tolerance specification.

Q: Is the ±100ppm/°C temperature coefficient critical for substitution?

A: Yes, the ±100ppm/°C temperature coefficient is a critical specification that determines resistance stability across the operating temperature range. All listed substitutes maintain this identical specification. Parts with different temperature coefficients are not acceptable substitutes.

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