RCS3216F2492CS Equivalent & Substitute Parts Reference

Part Overview

The RCS3216F2492CS is a 24.9 kOhms ±1% 0.25W (1/4W) thick film chip resistor manufactured by Samsung Electro-Mechanics in 1206 (3216 Metric) package format. This component features anti-sulfur and moisture-resistant construction, operating across -55°C to 155°C with a temperature coefficient of ±100ppm/°C. The part maintains active product status with 1119 units in current inventory stock.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, termination count), and environmental performance characteristics. Substitute components enable design flexibility, supply chain continuity, and application-specific feature selection while maintaining functional equivalence.

Key Parameters

Parameter	Specification
Resistance Value	24.9 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 (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RCS3216F2492CS are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical resistance value (24.9 kOhms), tolerance (±1%), power rating (0.25W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C).

Mechanical Compatibility: All substitutes use the 1206 (3216 Metric) package with 2 terminations, ensuring direct footprint compatibility on printed circuit boards.

Material & Construction: All parts utilize thick film composition with moisture-resistant properties, maintaining environmental performance equivalent to the primary part.

Compliance & Certification: Substitute parts are grouped by RoHS compliance status (ROHS3 Compliant or RoHS non-compliant) and automotive qualification (AEC-Q200 rated or standard industrial grade).

Key Differentiators: Substitutes vary by manufacturer, packaging format (Tape & Reel), specific feature sets (automotive qualification, pulse withstanding capability), and product lifecycle status (Active or Not For New Designs).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Temp Range	Features	RoHS Status	Product Status
RCS3216F2492CS	Samsung Electro-Mechanics	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Anti-Sulfur, Moisture Resistant	ROHS3 Compliant	Active
AC1206FR-0724K9L	YAGEO	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3 Compliant	Active
CR1206-FX-2492ELF	Bourns Inc.	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3 Compliant	Active
CRCW120624K9FKEA	Vishay Dale	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3 Compliant	Active
CRCW120624K9FKEAHP	Vishay Dale	24.9 kΩ	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Pulse Withstanding	ROHS3 Compliant	Active
CRCW120624K9FKTA	Vishay Dale	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	RoHS non-compliant	Active
ERJ-8ENF2492V	Panasonic Electronic Components	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3 Compliant	Not For New Designs
RC1206FR-0724K9L	YAGEO	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3 Compliant	Active
RMCF1206FT24K9	Stackpole Electronics Inc	24.9 kΩ	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3 Compliant	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, ROHS3 Compliant):

RMCF1206FT24K9 (Stackpole Electronics Inc) is recommended as the primary substitute. This part maintains full electrical and mechanical equivalence with ROHS3 compliance and active product status. Automotive AEC-Q200 qualification provides enhanced reliability for demanding applications. Inventory availability of 69,798 units ensures supply continuity.

RC1206FR-0724K9L (YAGEO) and CR1206-FX-2492ELF (Bourns Inc.) are suitable alternatives with active product status and ROHS3 compliance. Both provide moisture-resistant construction matching the primary part's environmental specifications. RC1206FR-0724K9L offers the highest inventory level (58,984 units).

Automotive-Qualified Alternatives:

AC1206FR-0724K9L (YAGEO), CRCW120624K9FKEA (Vishay Dale), and CRCW120624K9FKTA (Vishay Dale) include AEC-Q200 automotive qualification. These parts are suitable for applications requiring automotive-grade reliability. CRCW120624K9FKEA maintains ROHS3 compliance; CRCW120624K9FKTA is RoHS non-compliant and should be evaluated against regulatory requirements.

Enhanced Power Rating Option:

CRCW120624K9FKEAHP (Vishay Dale) provides 0.75W power rating with pulse withstanding capability in the same 1206 package. This part is suitable for applications requiring higher power dissipation or transient pulse tolerance while maintaining the same resistance and tolerance specifications.

Obsolescence Consideration:

ERJ-8ENF2492V (Panasonic Electronic Components) carries "Not For New Designs" status despite ROHS3 compliance and AEC-Q200 qualification. This part should be avoided in new product development to prevent future supply discontinuation.

Frequently Asked Questions (FAQ)

Q: Can CRCW120624K9FKEAHP (0.75W) be used as a direct replacement for RCS3216F2492CS (0.25W)?

A: CRCW120624K9FKEAHP is electrically and mechanically compatible with identical resistance, tolerance, temperature coefficient, and operating range. The higher power rating (0.75W vs. 0.25W) does not prevent substitution; the component will operate within specifications in applications designed for 0.25W. However, physical dimensions vary slightly (3.10mm L vs. 3.20mm L), requiring PCB layout verification.

Q: Are automotive AEC-Q200 qualified parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification indicates enhanced reliability testing and stricter manufacturing controls. These parts exceed standard industrial-grade specifications and are fully compatible with non-automotive applications. No performance degradation occurs when using automotive-qualified components in standard industrial circuits.

Q: What is the difference between ROHS3 Compliant and RoHS non-compliant parts?

A: ROHS3 Compliant parts meet Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. RoHS non-compliant parts (such as CRCW120624K9FKTA) may contain restricted substances and are subject to regulatory limitations in certain markets and applications. Selection depends on end-product regulatory requirements and geographic distribution.

Q: Do dimensional variations between substitute parts affect PCB compatibility?

A: All substitute parts use the 1206 (3216 Metric) package with identical footprint dimensions (0.126" L x 0.063" W nominal). Seated height variations (0.024" to 0.030" maximum) are within standard PCB assembly tolerances and do not affect component placement or soldering. Verify specific application requirements if height-constrained designs are present.

Q: Why is ERJ-8ENF2492V marked "Not For New Designs"?

A: "Not For New Designs" status indicates the manufacturer has discontinued active development and is transitioning the product to end-of-life. While currently available (51,768 units in stock), future supply cannot be guaranteed. New product designs should select from Active status alternatives to ensure long-term component availability.

Q: Can these 1206 resistors be used in high-frequency or RF applications?

A: The provided specifications do not include high-frequency performance data (impedance, Q-factor, or frequency response). Component selection for RF or high-frequency applications requires additional technical documentation beyond the parameters specified in this reference. Consult manufacturer datasheets for frequency-dependent performance characteristics.

Q: What is Moisture Sensitivity Level (MSL) 1, and why is it important?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. These parts can be stored indefinitely without desiccant packaging and do not require special handling or baking procedures before soldering. This classification simplifies supply chain logistics and manufacturing processes.

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