RCS3216F391CS 390 Ohm 1/4W 1206 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RCS3216F391CS is a 390 Ohm ±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 construction. The part operates across -55°C to 155°C with a temperature coefficient of ±100ppm/°C and is ROHS3 compliant with MSL 1 rating.

Equivalent and substitute parts are identified based on matching electrical specifications (390 Ohms resistance, ±1% tolerance, 0.25W power rating) and mechanical compatibility (1206 package, 2 terminations). Substitutes may vary in manufacturer features, automotive certifications, and packaging formats while maintaining functional equivalence for standard applications.

Key Parameters

Parameter	Value	Unit
Resistance	390	Ohms
Tolerance	±1	%
Power Rating	0.25	W (1/4W)
Package / Case	1206 (3216 Metric)	-
Composition	Thick Film	-
Temperature Coefficient	±100	ppm/°C
Operating Temperature Range	-55 to 155	°C
Number of Terminations	2	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F391CS is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

Resistance value: 390 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Terminations: 2
RoHS compliance: ROHS3 Compliant
MSL rating: 1 (Unlimited)

Variable Parameters (Non-Disqualifying):

Manufacturer identity
Packaging format (Tape & Reel vs. Cut Tape)
Additional certifications (AEC-Q200 automotive qualification)
Specific feature enhancements (anti-sulfur, pulse withstanding)
Physical dimensions within tolerance (length/width/height variations within standard 1206 specifications)

All identified substitute parts maintain electrical and mechanical compatibility with the main part. Variations in manufacturer-specific features or certifications do not affect functional substitution in standard circuit applications.

Parameter Comparison

Parameter	RCS3216F391CS (Samsung)	AC1206FR-07390RL (YAGEO)	CR1206-FX-3900ELF (Bourns)	CRCW1206390RFKEA (Vishay Dale)	ERJ-8ENF3900V (Panasonic)	RC1206FR-07390RL (YAGEO)
Resistance	390 Ω	390 Ω	390 Ω	390 Ω	390 Ω	390 Ω
Tolerance	±1%	±1%	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W	0.25W	0.25W
Package	1206	1206	1206	1206	1206	1206
Composition	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C
Operating Temperature	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C	-55 to 155°C
Terminations	2	2	2	2	2	2
RoHS Status	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3
MSL Rating	1	1	1	1	1	1
Product Status	Active	Active	Active	Active	Not For New Designs	Active
AEC-Q200 Automotive	No	Yes	No	Yes	Yes	No

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

The following parts are recommended as direct substitutes for new designs and ongoing production:

RC1206FR-07390RL (YAGEO): Active status, highest inventory availability (145,023 pcs), standard moisture resistant construction, Cut Tape packaging option
CR1206-FX-3900ELF (Bourns Inc.): Active status, large inventory (53,952 pcs), Tape & Reel packaging, standard moisture resistant features
CRCW1206390RFKEA (Vishay Dale): Active status, automotive AEC-Q200 qualified, 21,945 pcs inventory, Tape & Reel packaging
AC1206FR-07390RL (YAGEO): Active status, automotive AEC-Q200 qualified, 20,726 pcs inventory, Cut Tape packaging option

Secondary Substitute (Legacy Status):

ERJ-8ENF3900V (Panasonic): Classified as "Not For New Designs" but maintains full electrical and mechanical compatibility. Highest inventory (90,944 pcs). Suitable for replacement in existing applications or legacy system maintenance only.

Higher Power Alternative:

CRCW1206390RFKEAHP (Vishay Dale): Functionally equivalent with elevated 0.75W power rating and pulse withstanding capability. Use only when circuit design requires higher power dissipation capacity. Active status, 16,065 pcs inventory.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical electrical performance within specified tolerance and temperature ranges.

Frequently Asked Questions (FAQ)

Q1: Can I substitute RCS3216F391CS with any of these parts in my circuit?

A: Yes, all listed substitute parts maintain identical electrical specifications (390 Ohms ±1%, 0.25W) and mechanical compatibility (1206 package, 2 terminations). Direct substitution is functionally valid for standard applications. Verify your circuit design does not require manufacturer-specific certifications (such as AEC-Q200 for automotive applications) before selection.

Q2: What is the difference between the main part and substitute parts?

A: The RCS3216F391CS features anti-sulfur construction. Substitute parts vary in additional certifications and features: some include automotive AEC-Q200 qualification (AC1206FR-07390RL, CRCW1206390RFKEA, ERJ-8ENF3900V), while others offer standard moisture resistant construction (CR1206-FX-3900ELF, RC1206FR-07390RL). All maintain identical core electrical and thermal performance.

Q3: Which substitute should I choose for automotive applications?

A: For automotive applications requiring AEC-Q200 qualification, select from: CRCW1206390RFKEA, AC1206FR-07390RL, or ERJ-8ENF3900V. All three are AEC-Q200 qualified with Active or equivalent product status. CRCW1206390RFKEA and AC1206FR-07390RL are recommended for new designs.

Q4: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both packaging formats contain identical components. Tape & Reel (TR) is supplied on continuous carrier tape suitable for automated assembly equipment. Cut Tape (CT) is supplied in smaller quantities on cut tape segments. Selection depends on your assembly process and volume requirements. Electrical and mechanical specifications remain unchanged.

Q5: Can I use CRCW1206390RFKEAHP as a substitute?

A: CRCW1206390RFKEAHP is functionally compatible but features a higher 0.75W power rating compared to the 0.25W specification of RCS3216F391CS. Use this part only if your circuit design requires the elevated power dissipation capacity. Standard 0.25W applications do not require this higher-rated component.

Q6: Is ERJ-8ENF3900V still available for new designs?

A: ERJ-8ENF3900V is classified as "Not For New Designs" by Panasonic. While it maintains full electrical and mechanical compatibility and has high inventory availability (90,944 pcs), it is intended for replacement and legacy system applications only. For new designs, select from Active status alternatives: RC1206FR-07390RL, CR1206-FX-3900ELF, CRCW1206390RFKEA, or AC1206FR-07390RL.

Q7: Do all substitute parts have the same temperature coefficient?

A: Yes, all substitute parts and the main part RCS3216F391CS maintain identical temperature coefficient of ±100ppm/°C and operating temperature range of -55°C to 155°C. Temperature stability performance is equivalent across all options.

Q8: Are all parts RoHS3 compliant?

A: Yes, all listed parts including RCS3216F391CS and all substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Environmental and regulatory compliance is maintained across all options.

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