RCS3216J394CS 390kΩ 1206 Chip Resistor Equivalent & Substitute Parts

Part Overview

The RCS3216J394CS is a 390 kOhms ±5% 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. The part is ROHS3 compliant with MSL 1 rating, suitable for general-purpose applications requiring standard tolerance resistive elements. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, power rating, package) and mechanical compatibility within the 1206 form factor.

Key Parameters

Parameter	Specification
Resistance Value	390 kOhms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS3216J394CS are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Resistance value: 390 kOhms (exact match required)
Package / Case: 1206 (3216 Metric) (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Composition: Thick Film
Operating temperature range: -55°C to 155°C minimum
RoHS3 compliance and MSL 1 rating

Tolerance Consideration: The main part specifies ±5% tolerance. Substitute parts with ±1% tolerance provide improved accuracy and are electrically compatible, as tighter tolerance represents enhanced performance within the same resistance value and package constraints.

Product Status: Active status parts are preferred for new designs. Parts marked "Not For New Designs" remain functionally equivalent but may have limited availability or manufacturer support.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Operating Temp	Product Status	RoHS3	MSL
RCS3216J394CS	Samsung Electro-Mechanics	390 kΩ	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
AC1206FR-07390KL	YAGEO	390 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
CR1206-FX-3903ELF	Bourns Inc.	390 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
CRCW1206390KFKEA	Vishay Dale	390 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
CRCW1206390KFKEAHP	Vishay Dale	390 kΩ	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
ERJ-8ENF3903V	Panasonic Electronic Components	390 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Not For New Designs	Yes	1
KTR18EZPF3903	Rohm Semiconductor	390 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
RC1206FR-07390KL	YAGEO	390 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1
RC1206JR-07390KL	YAGEO	390 kΩ	±5%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	Yes	1

Engineering Selection Recommendations

Primary Substitutes (Active Status, Matching Tolerance ±1%):

AC1206FR-07390KL (YAGEO), CR1206-FX-3903ELF (Bourns Inc.), CRCW1206390KFKEA (Vishay Dale), KTR18EZPF3903 (Rohm Semiconductor), and RC1206FR-07390KL (YAGEO) are direct functional equivalents with improved ±1% tolerance specification. All maintain identical package, power rating, temperature coefficient, and operating temperature range. ROHS3 compliance and MSL 1 rating are preserved across all options. These parts are suitable for direct replacement in applications where the main part is currently specified.

Higher Power Alternative:

CRCW1206390KFKEAHP (Vishay Dale) provides 0.75W power rating in the same 1206 package with ±1% tolerance. This part is applicable in designs requiring increased power dissipation capability while maintaining all other electrical and mechanical parameters.

Tolerance-Matched Substitute (±5%):

RC1206JR-07390KL (YAGEO) matches the ±5% tolerance of the main part while offering Active product status and full ROHS3/MSL 1 compliance. This option is suitable for cost-sensitive applications where tolerance specification is not tightened.

Legacy Consideration:

ERJ-8ENF3903V (Panasonic Electronic Components) is electrically and mechanically equivalent but carries "Not For New Designs" status. This part remains available in inventory but should not be selected for new product development.

Frequently Asked Questions (FAQ)

Q: Can I substitute RCS3216J394CS with a ±1% tolerance part?

A: Yes. Parts with ±1% tolerance (AC1206FR-07390KL, CR1206-FX-3903ELF, CRCW1206390KFKEA, KTR18EZPF3903, RC1206FR-07390KL) are electrically compatible substitutes. The tighter tolerance represents improved accuracy within the same 390 kOhms resistance value and 1206 package. All parameters including power rating, temperature coefficient, and operating range remain identical.

Q: What is the difference between CRCW1206390KFKEA and CRCW1206390KFKEAHP?

A: Both parts are manufactured by Vishay Dale with identical 390 kOhms ±1% specification and 1206 package. The primary difference is power rating: CRCW1206390KFKEA is rated 0.25W, while CRCW1206390KFKEAHP is rated 0.75W. The higher power variant includes pulse withstanding capability. Select CRCW1206390KFKEAHP only if your application requires the increased power dissipation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance status identical to the main part RCS3216J394CS. Moisture Sensitivity Level (MSL) rating is 1 (Unlimited) across all options, indicating no special moisture handling requirements during storage or assembly.

Q: Can I use RC1206JR-07390KL as a direct replacement?

A: Yes. RC1206JR-07390KL (YAGEO) is a direct functional equivalent with matching ±5% tolerance, 0.25W power rating, and 1206 package. It maintains identical temperature coefficient (±100ppm/°C) and operating temperature range (-55°C to 155°C). This part is suitable for applications where tolerance specification is not modified.

Q: Why is ERJ-8ENF3903V marked "Not For New Designs"?

A: ERJ-8ENF3903V carries "Not For New Designs" status from the manufacturer, indicating the part is in mature or declining production phase. While electrically and mechanically equivalent to RCS3216J394CS, this designation reflects manufacturer lifecycle status. For new product development, select from Active status alternatives such as AC1206FR-07390KL, CR1206-FX-3903ELF, CRCW1206390KFKEA, KTR18EZPF3903, or RC1206FR-07390KL.

Q: Do all substitute parts fit the same PCB footprint?

A: All listed parts use the 1206 (3216 Metric) package with identical footprint dimensions. Physical dimensions vary slightly (length 3.10mm to 3.20mm, height 0.60mm to 0.75mm maximum seated height), but these variations remain within standard 1206 PCB pad tolerances. No footprint modification is required for substitution.

Q: Which substitute offers the best availability?

A: RC1206FR-07390KL (YAGEO) shows the highest inventory level at 817,251 pieces. CR1206-FX-3903ELF (Bourns Inc.) provides 69,084 pieces. Both parts are Active status with ±1% tolerance and full compliance ratings, making them suitable for high-volume applications requiring assured supply.

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