RC3216F2491CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F2491CS is a 2.49 kOhms ±1% 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 773 pieces currently in stock. The RC3216F2491CS features moisture-resistant construction, ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1), making it suitable for general industrial and consumer applications requiring stable resistive elements across the -55°C to 155°C operating temperature range.

Substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain optimization requires alternative sourcing, or when design specifications allow for functionally equivalent components from qualified manufacturers. All substitute parts listed maintain electrical and mechanical compatibility with the original RC3216F2491CS specification.

Key Parameters

Parameter	Value	Specification Tolerance
Resistance Value	2.49 kOhms	±1%
Power Rating	0.25W (1/4W)	Nominal
Package / Case	1206 (3216 Metric)	Mandatory
Composition	Thick Film	Mandatory
Tolerance	±1%	Mandatory
Temperature Coefficient	±100ppm/°C	Nominal
Operating Temperature Range	-55°C to 155°C	Mandatory
Moisture Resistance	Yes	Mandatory
RoHS Status	ROHS3 Compliant	Preferred
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Nominal
Number of Terminations	2	Mandatory

Substitute Part Grouping Explanation

Substitution logic for the RC3216F2491CS is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following mandatory criteria:

Mandatory Matching Parameters:

Resistance value: 2.49 kOhms
Tolerance: ±1%
Package format: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Number of terminations: 2
Moisture-resistant construction

Preferred Matching Parameters:

RoHS3 compliance
MSL 1 (Unlimited)
Power rating: 0.25W (1/4W)

Substitute parts are categorized as Direct Equivalents when all mandatory and preferred parameters match exactly. Parts are categorized as Similar when they maintain all mandatory parameters but differ in secondary characteristics such as automotive qualification (AEC-Q200), enhanced power rating, or compliance status.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Height Max (mm)	RoHS Status	Product Status	Inventory
RC3216F2491CS	Samsung Electro-Mechanics	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.66	ROHS3	Active	773
CR1206-FX-2491ELF	Bourns Inc.	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.75	ROHS3	Active	699858
RC1206FR-072K49L	YAGEO	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.65	ROHS3	Active	10200
CRCW12062K49FKEA	Vishay Dale	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.60	ROHS3	Active	34838
CRCW12062K49FKEAHP	Vishay Dale	2.49 kΩ	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	0.65	ROHS3	Active	43535
CRCW12062K49FKTA	Vishay Dale	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.60	RoHS Non-compliant	Active	13708
ERJ-8ENF2491V	Panasonic Electronic Components	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.70	ROHS3	Not For New Designs	149076
RMCF1206FT2K49	Stackpole Electronics Inc	2.49 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	0.70	ROHS3	Active	113629

Engineering Selection Recommendations

Direct Equivalent Substitutes (Preferred Selection):

The following parts maintain full electrical and mechanical compatibility with the RC3216F2491CS and are recommended as primary substitutes:

CR1206-FX-2491ELF (Bourns Inc.) – Active product status, ROHS3 compliant, 699,858 units in stock. Highest inventory availability. Suitable for direct replacement in all applications.
RC1206FR-072K49L (YAGEO) – Active product status, ROHS3 compliant, 10,200 units in stock. Minimal height variation (0.65mm vs. 0.66mm). Suitable for direct replacement.
RMCF1206FT2K49 (Stackpole Electronics Inc) – Active product status, ROHS3 compliant, 113,629 units in stock. Automotive AEC-Q200 qualified. Suitable for direct replacement with enhanced reliability qualification.

Similar Substitutes (Conditional Selection):

CRCW12062K49FKEA (Vishay Dale) – Active product status, ROHS3 compliant, 34,838 units in stock. Automotive AEC-Q200 qualified. Lowest seated height (0.60mm). Suitable for applications requiring automotive-grade components.
CRCW12062K49FKEAHP (Vishay Dale) – Active product status, ROHS3 compliant, 43,535 units in stock. Enhanced power rating (0.75W vs. 0.25W) with pulse withstanding capability and automotive AEC-Q200 qualification. Select only when higher power dissipation or pulse immunity is required.

Not Recommended for New Designs:

ERJ-8ENF2491V (Panasonic Electronic Components) – Product status is "Not For New Designs." Although ROHS3 compliant with 149,076 units in stock, this part should not be selected for new circuit designs. Acceptable only for legacy system maintenance or repair applications.

Not Recommended (Compliance Issues):

CRCW12062K49FKTA (Vishay Dale) – RoHS non-compliant status and REACH Affected designation. Do not select for applications requiring RoHS3 compliance or REACH compliance.

Frequently Asked Questions (FAQ)

Q1: Can I substitute RC3216F2491CS with CRCW12062K49FKEAHP if my circuit only requires 0.25W power dissipation?

A: Yes. CRCW12062K49FKEAHP is rated for 0.75W (3/4W) power dissipation, which exceeds the 0.25W requirement of the original RC3216F2491CS. A higher power rating component will operate safely at lower power levels. However, verify that the increased seated height (0.65mm vs. 0.66mm) does not create mechanical clearance issues in your PCB layout.

Q2: What is the difference between "Direct Equivalent" and "Similar" substitute classifications?

A: Direct Equivalent substitutes maintain identical electrical specifications and product status (Active). Similar substitutes maintain identical electrical specifications but differ in secondary characteristics such as automotive qualification (AEC-Q200), enhanced power rating, or compliance certifications. Both categories are electrically compatible; selection depends on application requirements and compliance mandates.

Q3: Why is ERJ-8ENF2491V marked "Not For New Designs" despite having high inventory?

A: Product status "Not For New Designs" indicates that the manufacturer has discontinued active development and recommends against using this part in new circuit designs. Although the part remains available and functional, it should be reserved for maintenance, repair, or legacy system support only. For new designs, select parts with Active product status.

Q4: Are all substitute parts compatible with the same PCB footprint as RC3216F2491CS?

A: All substitute parts use the 1206 (3216 Metric) package format with identical length (0.126" / 3.20mm) and width (0.063" / 1.60mm) dimensions. Seated height varies slightly between manufacturers (0.60mm to 0.75mm range). Verify that your PCB layout accommodates the maximum seated height of your selected substitute part to ensure proper component placement and solder joint formation.

Q5: Which substitute part offers the best supply chain stability?

A: CR1206-FX-2491ELF (Bourns Inc.) offers the highest inventory level at 699,858 units in stock, providing superior supply chain stability. RMCF1206FT2K49 (Stackpole Electronics Inc) with 113,629 units and CRCW12062K49FKEAHP (Vishay Dale) with 43,535 units also provide strong availability. Avoid ERJ-8ENF2491V despite its high inventory due to "Not For New Designs" status.

Q6: Do all substitute parts meet RoHS3 compliance requirements?

A: Six of the eight listed parts are ROHS3 compliant. CRCW12062K49FKTA is RoHS non-compliant and REACH Affected. If your application requires RoHS3 compliance, exclude CRCW12062K49FKTA from consideration. All other substitutes (CR1206-FX-2491ELF, RC1206FR-072K49L, CRCW12062K49FKEA, CRCW12062K49FKEAHP, ERJ-8ENF2491V, RMCF1206FT2K49) meet ROHS3 requirements.

Q7: What is the significance of the ±100ppm/°C temperature coefficient specification?

A: The ±100ppm/°C temperature coefficient indicates the maximum fractional change in resistance per degree Celsius across the -55°C to 155°C operating range. All listed substitute parts maintain this identical specification, ensuring equivalent thermal stability and predictable resistance variation across temperature extremes. This parameter is critical for precision analog circuits and temperature-sensitive applications.

Q8: Can I use CRCW12062K49FKTA as a substitute despite its RoHS non-compliance?

A: CRCW12062K49FKTA is electrically and mechanically compatible with RC3216F2491CS. However, its RoHS non-compliant status and REACH Affected designation make it unsuitable for applications subject to RoHS3 or REACH regulatory requirements. Select this part only if your application explicitly permits non-compliant components and regulatory exemptions are documented.

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