RC3216F2493CS Equivalent & Substitute Parts Reference

Part Overview

The RC3216F2493CS is a 249 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 moisture-resistant construction and ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical dimensions (1206 package), composition (thick film), and environmental operating parameters. Substitution becomes necessary due to inventory availability, supply chain optimization, or design flexibility requirements while maintaining functional equivalence.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for RC3216F2493CS are classified into two categories based on substitution compatibility:

Direct Substitutes (Functionally Equivalent): Parts meeting all core electrical parameters (249 kOhms, ±1% tolerance, 0.25W power rating) in 1206 package with identical temperature coefficient (±100ppm/°C) and operating temperature range (-55°C ~ 155°C). These parts maintain moisture-resistant thick film composition and ROHS3 compliance. Direct substitutes include CR1206-FX-2493ELF (Bourns), RC1206FR-07249KL (YAGEO), RMCF1206FT249K (Stackpole), and CRCW1206249KFKEA (Vishay Dale).

Similar Substitutes (Enhanced or Specialized Features): Parts matching core electrical and mechanical specifications but incorporating additional certifications or enhanced capabilities. ERJ-8ENF2493V (Panasonic) includes Automotive AEC-Q200 qualification. RMCF1206FG249K (Stackpole) adds AEC-Q200 automotive rating. CRCW1206249KFKEAHP (Vishay Dale) provides increased power rating (0.75W) with pulse withstanding capability and AEC-Q200 certification. KTR18EZPF2493 (Rohm) includes high voltage and AEC-Q200 features.

Substitution logic is strictly based on: resistance value match (249 kOhms), tolerance equivalence (±1%), package compatibility (1206), composition consistency (thick film), temperature coefficient alignment (±100ppm/°C), and operating temperature range coverage (-55°C ~ 155°C).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Composition	RoHS Status	Product Status
RC3216F2493CS	Samsung Electro-Mechanics	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
CR1206-FX-2493ELF	Bourns Inc.	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
ERJ-8ENF2493V	Panasonic Electronic Components	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Not For New Designs
RC1206FR-07249KL	YAGEO	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
RMCF1206FG249K	Stackpole Electronics Inc	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
RMCF1206FT249K	Stackpole Electronics Inc	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
CRCW1206249KFKEA	Vishay Dale	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
CRCW1206249KFKEAHP	Vishay Dale	249 kOhms	±1%	0.75	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active
KTR18EZPF2493	Rohm Semiconductor	249 kOhms	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Thick Film	ROHS3	Active

Engineering Selection Recommendations

For Direct Replacement (Equivalent Functionality):

CR1206-FX-2493ELF (Bourns), RC1206FR-07249KL (YAGEO), RMCF1206FT249K (Stackpole), and CRCW1206249KFKEA (Vishay Dale) are suitable direct substitutes. All maintain Active product status, ROHS3 compliance, and identical electrical specifications. RC1206FR-07249KL offers highest inventory availability (575,472 pcs). RMCF1206FT249K provides automotive AEC-Q200 qualification with substantial stock (32,823 pcs).

For Automotive or Specialized Applications:

RMCF1206FG249K and RMCF1206FT249K (Stackpole) include AEC-Q200 automotive qualification. KTR18EZPF2493 (Rohm) combines AEC-Q200 with high voltage capability. CRCW1206249KFKEA (Vishay Dale) provides AEC-Q200 certification. These selections apply when automotive-grade reliability is required.

For Enhanced Power Handling:

CRCW1206249KFKEAHP (Vishay Dale) increases power rating to 0.75W with pulse withstanding capability while maintaining 1206 package dimensions. This selection applies when circuit design requires higher transient power dissipation tolerance.

Avoid for New Designs:

ERJ-8ENF2493V (Panasonic) carries "Not For New Designs" status despite AEC-Q200 qualification and adequate inventory. This designation indicates manufacturer discontinuation trajectory.

Frequently Asked Questions (FAQ)

Q: Can CRCW1206249KFKEAHP (0.75W) replace RC3216F2493CS (0.25W) in existing designs?

A: Yes. The 0.75W part is functionally compatible as a direct substitute. Higher power rating provides additional thermal margin without affecting electrical performance. Mechanical dimensions remain within 1206 package specification. Verify PCB thermal design accommodates the component if power dissipation approaches original 0.25W specification.

Q: What is the difference between RMCF1206FG249K and RMCF1206FT249K?

A: Both are Stackpole RMCF series 249 kOhms ±1% 0.25W 1206 resistors with AEC-Q200 qualification and identical electrical specifications. RMCF1206FG249K is supplied in Cut Tape (CT) packaging with 3,963 pcs inventory. RMCF1206FT249K is supplied in Tape & Reel (TR) packaging with 32,823 pcs inventory. Selection depends on assembly process requirements and supply availability.

Q: Is RC1206FR-07249KL suitable for automotive applications?

A: RC1206FR-07249KL (YAGEO) meets standard industrial specifications without automotive AEC-Q200 certification. For automotive applications requiring AEC-Q200 qualification, select RMCF1206FT249K, RMCF1206FG249K, CRCW1206249KFKEA, or KTR18EZPF2493 instead.

Q: Do all substitute parts maintain MSL 1 (Unlimited) moisture sensitivity?

A: Yes. All listed substitute parts maintain MSL 1 classification, matching RC3216F2493CS moisture sensitivity level. No special moisture control measures are required during storage or handling.

Q: What is the significance of ±100ppm/°C temperature coefficient across all parts?

A: Temperature coefficient of ±100ppm/°C defines resistance value drift over the operating temperature range (-55°C ~ 155°C). All substitute parts maintain this specification, ensuring equivalent circuit performance across temperature extremes. This parameter is critical for precision analog circuits and temperature-sensitive applications.

Q: Can parts with different physical dimensions (height variations) be used interchangeably?

A: Physical dimensions vary slightly between manufacturers (height range 0.024" to 0.030"). All parts conform to 1206 package standard and fit standard PCB footprints. Height variations do not affect electrical performance or mechanical compatibility. Verify clearance in designs with height-constrained layouts.

Q: Why is ERJ-8ENF2493V marked "Not For New Designs"?

A: "Not For New Designs" status indicates Panasonic's discontinuation trajectory for this part number. While currently in stock (71,019 pcs) and functionally equivalent, this designation signals reduced long-term availability. New designs should select from Active status alternatives: CR1206-FX-2493ELF, RC1206FR-07249KL, RMCF1206FT249K, CRCW1206249KFKEA, or KTR18EZPF2493.

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