RCS3216F334CS 330kΩ 1% 1/4W 1206 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RCS3216F334CS is a 330 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) surface mount package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with anti-sulfur and moisture resistant characteristics. The part is ROHS3 compliant and operates across the temperature range of -55°C to 155°C. Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements necessitate alternative certifications such as automotive AEC-Q200 qualification or enhanced power ratings.

Key Parameters

Parameter	Value
Resistance	330 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)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F334CS is determined by strict equivalence across the following critical parameters: resistance value (330 kOhms), tolerance (±1%), power rating (0.25W minimum), package type (1206 / 3216 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1). Parts are grouped into two categories:

Direct Equivalents (0.25W Rating): Parts meeting all electrical and mechanical specifications with identical 0.25W power rating and standard moisture resistance or automotive AEC-Q200 qualification.

Higher Power Rating Variants (0.75W Rating): Parts with enhanced power dissipation capability (0.75W) that maintain all other electrical parameters and package dimensions, suitable for applications requiring additional thermal margin.

Parts with "Not For New Designs" status are included for reference in legacy system support but are not recommended for new circuit implementations.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Features	Product Status	RoHS
RCS3216F334CS	Samsung Electro-Mechanics	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Anti-Sulfur, Moisture Resistant	Active	ROHS3
AC1206FR-07330KL	YAGEO	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
CR1206-FX-3303ELF	Bourns Inc.	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Moisture Resistant	Active	ROHS3
CRCW1206330KFKEA	Vishay Dale	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Active	ROHS3
CRCW1206330KFKEAHP	Vishay Dale	330 kΩ	±1%	0.75	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, Pulse Withstanding	Active	ROHS3
ERJ-8ENF3303V	Panasonic Electronic Components	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200	Not For New Designs	ROHS3
KTR18EZPF3303	Rohm Semiconductor	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Automotive AEC-Q200, High Voltage	Active	ROHS3
RC1206FR-07330KL	YAGEO	330 kΩ	±1%	0.25	1206	±100ppm/°C	-55~155°C	Moisture Resistant	Active	ROHS3

Engineering Selection Recommendations

For Direct Substitution (Equivalent Performance):

Parts AC1206FR-07330KL, CR1206-FX-3303ELF, CRCW1206330KFKEA, KTR18EZPF3303, and RC1206FR-07330KL are electrically and mechanically equivalent to RCS3216F334CS. All maintain 330 kΩ resistance, ±1% tolerance, 0.25W power rating, 1206 package, and -55°C to 155°C operating range. Selection among these parts depends on supply availability and application-specific certifications. AC1206FR-07330KL, CRCW1206330KFKEA, ERJ-8ENF3303V, and KTR18EZPF3303 carry automotive AEC-Q200 qualification, suitable for automotive and high-reliability applications. CR1206-FX-3303ELF and RC1206FR-07330KL are standard industrial-grade alternatives without automotive certification.

For Enhanced Power Dissipation:

CRCW1206330KFKEAHP provides 0.75W power rating while maintaining all other electrical parameters and 1206 package compatibility. This variant is appropriate for applications requiring additional thermal margin or pulse withstanding capability. The higher power rating does not affect circuit functionality in applications designed for 0.25W operation.

For Legacy System Support:

ERJ-8ENF3303V carries "Not For New Designs" status and should be used only for repair and maintenance of existing systems. This part remains electrically equivalent but is not recommended for new circuit development.

Frequently Asked Questions (FAQ)

Q: Can I substitute RCS3216F334CS with any of the listed parts without circuit modification?

A: Yes. All listed parts maintain identical resistance (330 kΩ), tolerance (±1%), power rating (0.25W minimum), package (1206), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). Direct substitution is electrically valid. CRCW1206330KFKEAHP with 0.75W rating is also compatible as it exceeds the power requirement of the original part.

Q: What is the difference between automotive AEC-Q200 qualified parts and standard industrial parts?

A: Automotive AEC-Q200 qualification (AC1206FR-07330KL, CRCW1206330KFKEA, ERJ-8ENF3303V, KTR18EZPF3303) indicates compliance with automotive reliability and quality standards. These parts are suitable for automotive, aerospace, and high-reliability applications. Standard industrial parts (CR1206-FX-3303ELF, RC1206FR-07330KL) meet general industrial requirements. Selection depends on application requirements, not electrical performance.

Q: Are there physical dimension differences between substitute parts?

A: Minor dimensional variations exist within tolerance. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), and height ranges from 0.024" to 0.030" (0.60mm to 0.75mm). These variations are within standard PCB design tolerances for 1206 package components and do not affect circuit board layout compatibility.

Q: What does "Not For New Designs" status mean for ERJ-8ENF3303V?

A: This designation indicates the part is electrically and mechanically equivalent but the manufacturer recommends against using it in new circuit designs. The part remains available for repair and maintenance of existing systems. For new designs, select from Active status alternatives.

Q: Can CRCW1206330KFKEAHP (0.75W) be used in place of the 0.25W rated RCS3216F334CS?

A: Yes. The 0.75W part exceeds the power dissipation requirement and is physically compatible with 1206 package footprints. This substitution is appropriate when additional thermal margin is beneficial or when component inventory consolidation is desired.

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

A: RCS3216F334CS is supplied in standard packaging. Substitute parts are available in Tape & Reel (TR) format for automated assembly or Cut Tape (CT) & Digi-Reel® format for manual assembly. Packaging format does not affect electrical or mechanical compatibility.

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