RCS3216F185CS Equivalent & Substitute Parts

Part Overview

The RCS3216F185CS is a 1.8 MOhms ±1% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part is currently in active production status with 908 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support component sourcing flexibility and supply chain continuity.

Key Parameters

Parameter	Specification
Resistance Value	1.8 MOhms
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)

Substitute Part Grouping Explanation

Substitute parts for the RCS3216F185CS are qualified based on the following criteria:

Electrical Parameters (Mandatory Match):

Resistance value: 1.8 MOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Mandatory Match):

Package type: 1206 (3216 Metric)
Number of terminations: 2
Composition: Thick Film

Compliance Parameters (Mandatory Match):

RoHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Unaffected status

All five substitute parts meet these core requirements. Variations in physical dimensions (length, width, height) and additional certifications (AEC-Q200 automotive rating, high voltage capability) do not disqualify substitution but represent design enhancements available in specific alternatives.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Product Status	RoHS	MSL
RCS3216F185CS	Samsung Electro-Mechanics	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
AC1206FR-071M8L	YAGEO	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
CRCW12061M80FKEA	Vishay Dale	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
ERJ-8ENF1804V	Panasonic Electronic Components	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	ROHS3	1
KTR18EZPF1804	Rohm Semiconductor	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
RC1206FR-071M8L	YAGEO	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1

Engineering Selection Recommendations

Primary Substitutes (Active Status):

AC1206FR-071M8L (YAGEO), CRCW12061M80FKEA (Vishay Dale), KTR18EZPF1804 (Rohm Semiconductor), and RC1206FR-071M8L (YAGEO) are all in active production status with full RoHS3 compliance and MSL 1 rating. These parts are suitable for new designs and ongoing production applications. AC1206FR-071M8L and CRCW12061M80FKEA include AEC-Q200 automotive qualification, appropriate for automotive and high-reliability applications. KTR18EZPF1804 includes high voltage capability in addition to AEC-Q200 rating.

Secondary Substitute (Legacy Status):

ERJ-8ENF1804V (Panasonic Electronic Components) meets all electrical and mechanical specifications with full compliance certifications. However, this part carries "Not For New Designs" status, indicating it is in mature/legacy phase. This part is suitable only for replacement or maintenance of existing assemblies where design continuity is required.

Inventory Availability:

CRCW12061M80FKEA offers the highest inventory level (15,087 units), followed by ERJ-8ENF1804V (39,714 units) and RC1206FR-071M8L (37,993 units). AC1206FR-071M8L and KTR18EZPF1804 provide 1,071 and 9,087 units respectively.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF1804V be used as a direct replacement for RCS3216F185CS?

A: Yes, ERJ-8ENF1804V meets all electrical and mechanical specifications. However, it carries "Not For New Designs" status. Use this part only for replacement applications in existing assemblies.

Q: What is the difference between AC1206FR-071M8L and RC1206FR-071M8L?

A: Both are YAGEO 1206 resistors with identical electrical specifications. AC1206FR-071M8L includes AEC-Q200 automotive qualification and is packaged in Tape & Reel format. RC1206FR-071M8L is the standard industrial version without automotive certification. Select AC1206FR-071M8L for automotive applications.

Q: Are all substitute parts physically interchangeable?

A: All substitute parts use the 1206 (3216 Metric) package with 2 terminations. Physical dimensions vary slightly: length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), and height ranges from 0.024" to 0.028" (0.60mm to 0.70mm). These variations are within standard PCB pad tolerances and do not affect interchangeability in standard applications.

Q: Which substitute part is recommended for automotive applications?

A: AC1206FR-071M8L, CRCW12061M80FKEA, and KTR18EZPF1804 all carry AEC-Q200 automotive qualification. CRCW12061M80FKEA offers the highest inventory availability. KTR18EZPF1804 adds high voltage capability if required by the application.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts share this specification.

Q: Can I use KTR18EZPF1804 in place of RCS3216F185CS if high voltage performance is needed?

A: KTR18EZPF1804 is specified with high voltage capability in addition to standard electrical parameters. It meets all RCS3216F185CS specifications and adds this enhanced feature. Verify that the high voltage rating aligns with your circuit requirements.

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