RCS3216F183CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F183CS is an 18 kOhm ±1% 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 properties. The part operates across -55°C to 155°C temperature range and complies with ROHS3 standards.

Substitute parts are identified based on matching electrical specifications (18 kOhm resistance, ±1% tolerance, 0.25W power rating) and mechanical compatibility (1206 package format, identical termination count, compatible dimensions). Alternative sources become necessary for supply chain continuity, inventory availability, or specific application requirements such as automotive qualification.

Key Parameters

Parameter	Value
Resistance	18 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	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the RCS3216F183CS is determined by strict adherence to the following parameters:

Primary Electrical Criteria:

Resistance value: 18 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C ~ 155°C (minimum requirement)

Primary Mechanical Criteria:

Package format: 1206 (3216 Metric) (exact match required)
Number of terminations: 2 (exact match required)
Composition: Thick Film (exact match required)

Compliance Criteria:

RoHS3 compliance (required)
Moisture Sensitivity Level 1 (required)

Power Rating Consideration: Parts with 0.25W (1/4W) power rating are direct substitutes. Parts with higher power ratings (0.75W) are listed but represent design upgrades rather than direct equivalents and require circuit validation.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Package	Temp Coeff	Operating Temp	Product Status	RoHS3	MSL
RCS3216F183CS	Samsung Electro-Mechanics	18 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
AC1206FR-0718KL	YAGEO	18 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CR1206-FX-1802ELF	Bourns Inc.	18 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CRCW120618K0FKEA	Vishay Dale	18 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
CRCW120618K0FKEAHP	Vishay Dale	18 kOhms	±1%	0.75W	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1
ERJ-8ENF1802V	Panasonic Electronic Components	18 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	Yes	1
RC1206FR-0718KL	YAGEO	18 kOhms	±1%	0.25W	1206	±100ppm/°C	-55°C ~ 155°C	Active	Yes	1

Engineering Selection Recommendations

Direct Substitutes (Active Product Status, 0.25W Rating):

AC1206FR-0718KL (YAGEO), CR1206-FX-1802ELF (Bourns Inc.), CRCW120618K0FKEA (Vishay Dale), and RC1206FR-0718KL (YAGEO) are functionally equivalent to the RCS3216F183CS. All maintain Active product status, identical electrical specifications, and ROHS3 compliance. These parts are suitable for direct replacement in new designs and existing applications.

Automotive-Qualified Alternatives:

AC1206FR-0718KL, CRCW120618K0FKEA, and ERJ-8ENF1802V carry AEC-Q200 automotive qualification. These parts are appropriate for automotive and high-reliability applications where automotive-grade components are specified.

Higher Power Rating Option:

CRCW120618K0FKEAHP provides 0.75W power rating in the same 1206 package. This part is suitable only when circuit design requires increased power dissipation capability. Use of this part in applications designed for 0.25W components does not provide functional benefit and may introduce unnecessary cost.

Obsolescence Consideration:

ERJ-8ENF1802V carries "Not For New Designs" product status. While electrically and mechanically compatible, this part should be avoided in new product development. Existing designs using this part number should transition to Active-status alternatives.

Frequently Asked Questions (FAQ)

Q: Can CRCW120618K0FKEAHP (0.75W) be used as a direct replacement for RCS3216F183CS (0.25W)?

A: CRCW120618K0FKEAHP is mechanically and electrically compatible with RCS3216F183CS. The higher power rating does not create incompatibility. However, substitution should be based on circuit requirements rather than part availability. If the original design specifies 0.25W, the higher rating provides no functional advantage.

Q: What is the difference between AC1206FR-0718KL and RC1206FR-0718KL, both from YAGEO?

A: Both parts are electrically identical 18 kOhm ±1% 0.25W 1206 resistors. AC1206FR-0718KL includes automotive AEC-Q200 qualification; RC1206FR-0718KL does not. Selection depends on application requirements. AC1206FR-0718KL is packaged in Tape & Reel; RC1206FR-0718KL is packaged in Cut Tape & Digi-Reel.

Q: Why is ERJ-8ENF1802V marked "Not For New Designs"?

A: ERJ-8ENF1802V carries obsolescence status indicating the manufacturer has discontinued active development. While current inventory exists and the part remains functionally compatible, new product designs should select from Active-status alternatives to ensure long-term supply availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the RCS3216F183CS environmental and regulatory requirements.

Q: What packaging options are available among substitute parts?

A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel packaging formats. Selection should align with manufacturing process requirements and procurement specifications.

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