RC3216F2490CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F2490CS is a 249 Ohm ±1% 0.25W (1/4W) chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently in active production status with 904 pieces available in inventory. Equivalent and substitute parts are identified to support procurement flexibility, design alternatives, and supply chain continuity for applications requiring 249 Ohm ±1% 1/4W 1206 resistors.

Key Parameters

Parameter	Value
Resistance	249 Ohms
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
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Number of Terminations	2

Substitute Part Grouping Explanation

Substitute parts for the RC3216F2490CS are classified based on strict electrical and mechanical parameter alignment. All substitute candidates maintain identical resistance value (249 Ohms), tolerance (±1%), power rating (0.25W), package format (1206), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). These parameters are mandatory for direct substitution without circuit redesign.

Substitutes are further categorized by product status and compliance certifications:

Direct Substitutes maintain all core electrical specifications and standard industrial compliance (ROHS3, MSL 1, REACH Unaffected).

Upgrade Substitutes add automotive AEC-Q200 qualification while maintaining all core electrical parameters, suitable for applications requiring automotive-grade reliability.

Similar Substitutes include variants with enhanced features (automotive AEC-Q200 certification, pulse withstanding capability) or alternative product status conditions. One variant (CRCW1206249RFKEAHP) features increased power rating (0.75W) and is classified as similar rather than direct due to power specification difference.

Dimensional variations within 1206 package tolerance and height differences up to 0.030" (0.75mm) are acceptable within standard PCB assembly specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	MSL	RoHS Status	Product Status	Packaging
RC3216F2490CS	Samsung Electro-Mechanics	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Bulk
CR1206-FX-2490ELF	Bourns Inc.	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
RC1206FR-07249RL	YAGEO	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
AC1206FR-07249RL	YAGEO	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
CRCW1206249RFKEA	Vishay Dale	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
CRCW1206249RFKEAHP	Vishay Dale	249 Ω	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel
CRCW1206249RFKTA	Vishay Dale	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	RoHS non-compliant	Active	Tape & Reel
ERJ-8ENF2490V	Panasonic Electronic Components	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Not For New Designs	Tape & Reel
RMCF1206FT249R	Stackpole Electronics Inc	249 Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	1	ROHS3	Active	Tape & Reel

Engineering Selection Recommendations

For Standard Industrial Applications: Select CR1206-FX-2490ELF (Bourns), RC1206FR-07249RL (YAGEO), CRCW1206249RFKEA (Vishay Dale), or RMCF1206FT249R (Stackpole). All maintain active product status, ROHS3 compliance, and identical electrical specifications to the RC3216F2490CS. These parts are suitable for direct substitution in non-automotive applications.

For Automotive Applications: Select AC1206FR-07249RL (YAGEO) or CRCW1206249RFKEA (Vishay Dale). Both carry AEC-Q200 automotive qualification while maintaining all core electrical parameters and ROHS3 compliance. These parts meet automotive reliability and qualification standards.

For Enhanced Power Margin Applications: CRCW1206249RFKEAHP (Vishay Dale) provides 0.75W power rating in the same 1206 package, offering increased thermal margin. This part is suitable when circuit design permits higher power dissipation capability.

Not Recommended for New Designs: ERJ-8ENF2490V (Panasonic) carries "Not For New Designs" status. This part is available in inventory but should not be selected for new product development.

Compliance Consideration: CRCW1206249RFKTA (Vishay Dale) is RoHS non-compliant and REACH affected. This part is not suitable for applications requiring ROHS3 compliance or REACH compliance.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC3216F2490CS with any of the listed parts without circuit modification?

A: Direct substitution is possible with CR1206-FX-2490ELF, RC1206FR-07249RL, CRCW1206249RFKEA, CRCW1206249RFKTA, ERJ-8ENF2490V, and RMCF1206FT249R. All maintain identical resistance (249 Ohms), tolerance (±1%), power rating (0.25W), package (1206), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). AC1206FR-07249RL is also directly substitutable with the addition of AEC-Q200 automotive qualification. CRCW1206249RFKEAHP requires circuit evaluation due to increased power rating (0.75W).

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes (CR1206-FX-2490ELF, RC1206FR-07249RL, CRCW1206249RFKEA, RMCF1206FT249R) maintain all electrical and compliance specifications identical to the RC3216F2490CS. Upgrade substitutes (AC1206FR-07249RL, CRCW1206249RFKEA) add automotive AEC-Q200 qualification, making them suitable for automotive applications while maintaining all core electrical parameters.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within 1206 package tolerance. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), width is consistent at 0.063" (1.60mm), and maximum seated height ranges from 0.024" to 0.030" (0.60mm to 0.75mm). These variations are within standard PCB assembly specifications and do not affect electrical performance or mechanical fit.

Q: Which substitute part has the highest inventory availability?

A: CRCW1206249RFKEAHP (Vishay Dale) has the highest inventory with 135,912 pieces available. CR1206-FX-2490ELF (Bourns) has 66,724 pieces, and ERJ-8ENF2490V (Panasonic) has 74,566 pieces.

Q: Can I use CRCW1206249RFKEAHP as a direct replacement?

A: CRCW1206249RFKEAHP differs in power rating (0.75W versus 0.25W). While it maintains all other electrical specifications, circuit evaluation is required to confirm that the increased power rating does not introduce unintended thermal or electrical characteristics. It is classified as a similar substitute rather than a direct substitute.

Q: Why is ERJ-8ENF2490V marked "Not For New Designs"?

A: ERJ-8ENF2490V carries "Not For New Designs" product status from Panasonic Electronic Components. This designation indicates the manufacturer is not recommending this part for new product development. Existing designs using this part may continue, but new designs should select from active-status alternatives.

Q: Is CRCW1206249RFKTA suitable for my application?

A: CRCW1206249RFKTA is RoHS non-compliant and REACH affected. This part is not suitable for applications requiring ROHS3 compliance or REACH compliance. Select alternative parts with ROHS3 compliance status.

Q: What packaging formats are available?

A: The original RC3216F2490CS is supplied in bulk packaging. All substitute parts are available in Tape & Reel (TR) format, which is standard for automated assembly processes. Tape & Reel packaging is compatible with standard pick-and-place equipment.

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