RCS3216F1872CS Equivalent & Substitute Parts

Part Overview

The RCS3216F1872CS is an 18.7 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Samsung Electro-Mechanics. This component features anti-sulfur and moisture-resistant construction with a temperature coefficient of ±100ppm/°C and operating range of -55°C to 155°C. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to ensure direct interchangeability in circuit applications.

Key Parameters

Parameter	Specification
Resistance Value	18.7 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 to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS3216F1872CS are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

Electrical Parameters:

Resistance value: 18.7 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C

Mechanical Parameters:

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

Compliance Parameters:

RoHS3 compliance
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts match these core parameters, ensuring direct replacement capability in existing circuit designs without modification to PCB layouts or component footprints.

Parameter Comparison

Parameter	RCS3216F1872CS (Samsung)	CRCW120618K7FKEA (Vishay Dale)	ERJ-8ENF1872V (Panasonic)	RC1206FR-0718K7L (YAGEO)
Resistance	18.7 kOhms	18.7 kOhms	18.7 kOhms	18.7 kOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)
Composition	Thick Film	Thick Film	Thick Film	Thick Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Number of Terminations	2	2	2	2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	Not specified	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Not For New Designs	Active
Size / Dimension	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.126" L x 0.063" W (3.20mm x 1.60mm)	0.122" L x 0.063" W (3.10mm x 1.60mm)
Height - Seated (Max)	0.026" (0.66mm)	0.024" (0.60mm)	0.028" (0.70mm)	0.026" (0.65mm)

Engineering Selection Recommendations

Primary Recommendation: CRCW120618K7FKEA (Vishay Dale)

The CRCW120618K7FKEA is the preferred substitute for new designs and production applications. This part maintains active product status, carries AEC-Q200 automotive qualification, and provides the lowest seated height (0.024" / 0.60mm) among available substitutes. ROHS3 compliance and identical electrical specifications ensure seamless integration into existing circuits.

Secondary Recommendation: RC1206FR-0718K7L (YAGEO)

The RC1206FR-0718K7L offers an active product status with moisture-resistant thick film construction matching the original RCS3216F1872CS. This part is suitable for general industrial and commercial applications requiring equivalent performance characteristics.

Legacy Consideration: ERJ-8ENF1872V (Panasonic)

The ERJ-8ENF1872V carries AEC-Q200 automotive qualification and meets all electrical and mechanical specifications. However, this part is designated "Not For New Designs" and should be used only in legacy system maintenance or replacement scenarios where existing inventory constraints apply.

Frequently Asked Questions (FAQ)

Q: Can CRCW120618K7FKEA directly replace RCS3216F1872CS without PCB modification?

A: Yes. Both parts share identical 1206 (3216 Metric) package dimensions, 18.7 kOhms ±1% resistance, 0.25W power rating, and ±100ppm/°C temperature coefficient. The maximum seated height difference (0.024" vs 0.026") is within standard PCB assembly tolerances and does not require layout changes.

Q: What is the significance of AEC-Q200 qualification on substitute parts?

A: AEC-Q200 is an automotive industry standard qualification for passive components. CRCW120618K7FKEA and ERJ-8ENF1872V carry this certification, indicating enhanced reliability testing and suitability for automotive applications. The original RCS3216F1872CS does not specify AEC-Q200 but meets equivalent electrical performance.

Q: Why is ERJ-8ENF1872V marked "Not For New Designs"?

A: This designation indicates the part is in mature or declining production phase. While fully functional and electrically equivalent, Panasonic recommends using alternative sources for new product development. Existing inventory may be used for legacy system support.

Q: Are there dimensional compatibility concerns between substitute parts?

A: All substitute parts conform to 1206 (3216 Metric) package specifications. Minor variations in seated height (0.024" to 0.028") and length (0.122" to 0.126") fall within standard PCB footprint tolerances and do not affect assembly or performance.

Q: Do all substitute parts meet the same environmental compliance standards?

A: Yes. All identified substitutes are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original RCS3216F1872CS specifications. REACH and ECCN classifications are consistent across all parts.

Q: What packaging formats are available for substitute parts?

A: CRCW120618K7FKEA is supplied in Cut Tape (CT) and Digi-Reel® formats. ERJ-8ENF1872V and RC1206FR-0718K7L are supplied in Tape & Reel (TR) format. Selection depends on production volume and assembly equipment compatibility.

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