RCS3216F5491CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F5491CS is a 5.49 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 ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is currently in active production status with 986 pieces available in stock. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and package compatibility to support component procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Specification
Resistance Value	5.49 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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RCS3216F5491CS are qualified based on the following criteria:

Electrical Parameters (Critical):

Resistance value: 5.49 kOhms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Critical):

Package type: 1206 (3216 Metric)
Number of terminations: 2
Physical dimensions compatible with 1206 footprint

Compliance Parameters:

RoHS3 compliance
MSL 1 rating
REACH unaffected status

All identified substitute parts meet these core parameters. Variations in height (seated maximum) and exact dimensional tolerances remain within acceptable limits for 1206 package specifications. Differences in features (automotive AEC-Q200 certification, anti-sulfur vs. moisture-resistant construction) represent functional enhancements or application-specific qualifications that do not prevent substitution in standard applications.

Parameter Comparison

Parameter	RCS3216F5491CS (Samsung)	CRCW12065K49FKEA (Vishay Dale)	ERJ-8ENF5491V (Panasonic)	RC1206FR-075K49L (YAGEO)
Resistance	5.49 kOhms	5.49 kOhms	5.49 kOhms	5.49 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 ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C	-55°C ~ 155°C
Height - Seated (Max)	0.026" (0.66mm)	0.024" (0.60mm)	0.028" (0.70mm)	0.026" (0.65mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	MSL 1	MSL 1	MSL 1	MSL 1
Product Status	Active	Active	Not For New Designs	Active

Engineering Selection Recommendations

Primary Selection (Active Status): The RCS3216F5491CS (Samsung Electro-Mechanics) remains the primary component choice. For new designs or long-term production, CRCW12065K49FKEA (Vishay Dale) and RC1206FR-075K49L (YAGEO) are recommended as equivalent alternatives, both maintaining active product status with full compliance certifications.

Secondary Selection (Legacy Applications): ERJ-8ENF5491V (Panasonic Electronic Components) is classified as "Not For New Designs" and should be used only for replacement or maintenance of existing assemblies where component continuity is required.

Compliance Considerations: All four parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status. The Vishay Dale CRCW12065K49FKEA includes automotive AEC-Q200 qualification, suitable for automotive and high-reliability applications. The Samsung RCS3216F5491CS and YAGEO RC1206FR-075K49L feature anti-sulfur or moisture-resistant construction for enhanced environmental protection in standard industrial applications.

Frequently Asked Questions (FAQ)

Q: Can CRCW12065K49FKEA replace RCS3216F5491CS in existing designs? A: Yes. Both parts share identical electrical specifications (5.49 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C) and 1206 package footprint. The CRCW12065K49FKEA includes automotive AEC-Q200 certification, which provides additional qualification but does not prevent use in standard applications. Height variation (0.024" vs. 0.026") remains within 1206 package tolerance.

Q: Why is ERJ-8ENF5491V marked "Not For New Designs"? A: This designation indicates the part is in mature/legacy status. While electrically and mechanically equivalent, Panasonic has discontinued active development. The part remains available for existing production and field replacement but should not be selected for new product development. Use CRCW12065K49FKEA or RC1206FR-075K49L for new designs.

Q: Are there dimensional differences that affect PCB layout? A: All parts conform to 1206 (3216 Metric) package specifications. Seated height varies slightly: RCS3216F5491CS (0.66mm), CRCW12065K49FKEA (0.60mm), ERJ-8ENF5491V (0.70mm), RC1206FR-075K49L (0.65mm). These variations fall within standard 1206 tolerance and do not require PCB layout modification.

Q: Do all substitute parts meet the same environmental compliance? A: Yes. All four parts are ROHS3 compliant, MSL 1 rated, and REACH unaffected. The Vishay Dale part adds automotive AEC-Q200 qualification, which exceeds standard requirements but maintains full backward compatibility.

Q: Which substitute offers the best long-term availability? A: CRCW12065K49FKEA (Vishay Dale) and RC1206FR-075K49L (YAGEO) both maintain active product status with substantial inventory levels (14,321 and 6,066 pieces respectively). These are recommended for applications requiring extended supply chain stability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message