RCS3216J185CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216J185CS is a 1.8 MOhms ±5% 0.25W thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component is classified as Active product status with 941 pieces currently in stock. The RCS3216J185CS features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C temperature range with ±100ppm/°C temperature coefficient.

Equivalent and substitute parts are identified based on matching core electrical specifications: 1.8 MOhms resistance value, 0.25W power rating, 1206 package format, and compatible tolerance grades. Substitute components maintain identical mechanical dimensions, thermal characteristics, and environmental compliance ratings to ensure direct circuit board compatibility.

Key Parameters

Parameter	Value
Resistance	1.8 MOhms
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 ~ 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for RCS3216J185CS are classified into two functional groups based on tolerance specification:

Group 1: ±5% Tolerance (Direct Electrical Match) Parts maintaining ±5% tolerance specification identical to the main component. These substitutes provide equivalent electrical performance without tolerance degradation.

Group 2: ±1% Tolerance (Tighter Tolerance Substitutes) Parts with ±1% tolerance specification. These components exceed the original tolerance requirement and are suitable for applications requiring improved accuracy. All Group 2 substitutes maintain identical 1.8 MOhms resistance, 0.25W power rating, 1206 package format, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range.

Substitution Criteria (Mandatory Parameters):

Resistance value: 1.8 MOhms (exact match required)
Power rating: 0.25W minimum
Package format: 1206 (3216 Metric)
Composition: Thick film
Temperature coefficient: ±100ppm/°C
Operating temperature: -55°C to 155°C minimum
Termination count: 2
MSL rating: 1 (Unlimited)
RoHS3 compliance

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	Features	Product Status
RCS3216J185CS	Samsung Electro-Mechanics	1.8 MOhms	±5%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Anti-Sulfur, Moisture Resistant	Active
RC1206JR-071M8L	YAGEO	1.8 MOhms	±5%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active
AC1206FR-071M8L	YAGEO	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, Moisture Resistant	Active
CRCW12061M80FKEA	Vishay Dale	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Active
ERJ-8ENF1804V	Panasonic Electronic Components	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200	Not For New Designs
KTR18EZPF1804	Rohm Semiconductor	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Automotive AEC-Q200, High Voltage	Active
RC1206FR-071M8L	YAGEO	1.8 MOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Moisture Resistant	Active

Engineering Selection Recommendations

Primary Substitute (Equivalent Tolerance): RC1206JR-071M8L from YAGEO maintains ±5% tolerance specification matching RCS3216J185CS. Both components are Active product status with moisture-resistant thick film construction. This substitute provides direct electrical equivalence with identical tolerance performance.

Secondary Substitutes (Improved Tolerance): AC1206FR-071M8L, CRCW12061M80FKEA, KTR18EZPF1804, and RC1206FR-071M8L all feature ±1% tolerance specification, providing tighter accuracy than the original component. These parts are suitable for applications where improved tolerance performance is beneficial. AC1206FR-071M8L, CRCW12061M80FKEA, and KTR18EZPF1804 carry Automotive AEC-Q200 certification, indicating qualification for automotive applications.

Restricted Substitute: ERJ-8ENF1804V from Panasonic Electronic Components carries "Not For New Designs" product status. This component is suitable only for legacy system maintenance and repair applications. New circuit designs should not incorporate this part number.

Compliance Considerations: All listed substitutes maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity rating, and REACH Unaffected status, matching the environmental and regulatory compliance profile of RCS3216J185CS.

Frequently Asked Questions (FAQ)

Q: Can RC1206JR-071M8L directly replace RCS3216J185CS in existing designs? A: Yes. RC1206JR-071M8L maintains identical ±5% tolerance, 1.8 MOhms resistance, 0.25W power rating, 1206 package format, and operating temperature range. Both components are Active product status with moisture-resistant thick film construction.

Q: What is the difference between ±5% and ±1% tolerance substitutes? A: The main component RCS3216J185CS and RC1206JR-071M8L specify ±5% tolerance. Substitutes AC1206FR-071M8L, CRCW12061M80FKEA, KTR18EZPF1804, and RC1206FR-071M8L feature ±1% tolerance, providing tighter resistance accuracy. Both tolerance grades are compatible with the 1206 package and identical electrical parameters.

Q: Are automotive-rated substitutes compatible with non-automotive applications? A: Yes. AC1206FR-071M8L, CRCW12061M80FKEA, and KTR18EZPF1804 carry Automotive AEC-Q200 certification. Automotive-qualified components meet or exceed standard industrial specifications and are suitable for general industrial and consumer applications.

Q: Why is ERJ-8ENF1804V marked "Not For New Designs"? A: ERJ-8ENF1804V carries "Not For New Designs" product status from Panasonic Electronic Components. This designation indicates the manufacturer is phasing out this part number. Use this component only for maintenance and repair of existing systems. New circuit designs should select from Active status alternatives.

Q: Do all substitutes maintain the same physical dimensions? A: All substitutes use 1206 (3216 Metric) package format with compatible mechanical dimensions. Seated height varies slightly: RCS3216J185CS maximum 0.66mm, RC1206JR-071M8L maximum 0.65mm, AC1206FR-071M8L maximum 0.65mm, CRCW12061M80FKEA maximum 0.60mm, ERJ-8ENF1804V maximum 0.70mm, KTR18EZPF1804 maximum 0.65mm, RC1206FR-071M8L maximum 0.65mm. These variations remain within standard 1206 package tolerance and do not affect circuit board layout compatibility.

Q: What is MSL 1 (Unlimited) moisture sensitivity rating? A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. These parts do not require special moisture-controlled storage or handling procedures and can be stored under standard industrial conditions indefinitely.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the environmental compliance profile of RCS3216J185CS. All components are REACH Unaffected.

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