ERJ-S14F2490U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F2490U is a 249 Ohm ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by Panasonic Electronic Components. This component features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with 1120 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when design flexibility across multiple qualified suppliers is needed while maintaining identical electrical and mechanical performance.

Key Parameters

Parameter	Value
Resistance	249 Ohms
Tolerance	±1%
Power Rating	0.5W (1/2W)
Package / Case	1210 (3225 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F2490U is determined by strict equivalence across the following critical parameters:

Resistance value: 249 Ohms
Tolerance: ±1%
Power rating: 0.5W (1/2W)
Package: 1210 (3225 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Moisture sensitivity level: 1 (Unlimited)
RoHS compliance: ROHS3 Compliant

All substitute parts listed meet these electrical and mechanical requirements. Variations in physical dimensions (length, width, height) within the 1210 package specification, packaging format (Tape & Reel vs. Cut Tape), and specific feature sets (anti-sulfur vs. moisture resistant) do not affect functional substitutability. Automotive AEC-Q200 qualification is present on all listed substitutes, ensuring reliability in automotive applications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	RoHS3	MSL	Product Status	Inventory (Pcs)
ERJ-S14F2490U	Panasonic	249 Ω	±1%	0.5	1210	±100ppm/°C	-55~155°C	Yes	Yes	1	Active	1120
ERJ-14NF2490U	Panasonic	249 Ω	±1%	0.5	1210	±100ppm/°C	-55~155°C	Yes	Yes	1	Not For New Designs	64527
AC1210FR-07249RL	YAGEO	249 Ω	±1%	0.5	1210	±100ppm/°C	-55~155°C	Yes	Yes	1	Active	4686
CRCW1210249RFKEA	Vishay Dale	249 Ω	±1%	0.5	1210	±100ppm/°C	-55~155°C	Yes	Yes	1	Active	8964
RC1210FR-07249RL	YAGEO	249 Ω	±1%	0.5	1210	±100ppm/°C	-55~155°C	No	Yes	1	Active	15729
RMCF1210FT249R	Stackpole Electronics	249 Ω	±1%	0.5	1210	±100ppm/°C	-55~155°C	Yes	Yes	1	Active	24441

Engineering Selection Recommendations

For new designs and active production, select from parts with Active product status: AC1210FR-07249RL (YAGEO), CRCW1210249RFKEA (Vishay Dale), RC1210FR-07249RL (YAGEO), or RMCF1210FT249R (Stackpole Electronics). All four maintain full AEC-Q200 automotive qualification and ROHS3 compliance.

The ERJ-14NF2490U, while electrically and mechanically equivalent, carries a "Not For New Designs" status and should be used only for legacy system maintenance or existing production continuity where design changes are not feasible.

For automotive applications requiring AEC-Q200 certification, prioritize AC1210FR-07249RL, CRCW1210249RFKEA, or RMCF1210FT249R. The RC1210FR-07249RL lacks explicit AEC-Q200 designation and is suitable for non-automotive or general industrial applications.

Frequently Asked Questions (FAQ)

Q: Can ERJ-S14F2490U be directly replaced with ERJ-14NF2490U?

A: Yes, electrically and mechanically. However, ERJ-14NF2490U is marked "Not For New Designs." Use only for legacy system support or production continuity where design revision is not permitted.

Q: Are all substitute parts suitable for automotive applications?

A: AC1210FR-07249RL, CRCW1210249RFKEA, and RMCF1210FT249R carry AEC-Q200 qualification and are suitable for automotive use. RC1210FR-07249RL does not have explicit AEC-Q200 designation and should be evaluated for specific automotive requirements.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Both are equivalent for component functionality. Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® is used for lower-volume or mixed-component orders. CRCW1210249RFKEA uses Cut Tape & Digi-Reel® packaging; all others use Tape & Reel.

Q: Do physical dimension variations affect substitutability?

A: No. All parts conform to the 1210 (3225 Metric) package specification. Minor variations in length, width, and height remain within package tolerance and do not affect PCB layout or assembly compatibility.

Q: Which substitute offers the highest inventory availability?

A: RMCF1210FT249R (Stackpole Electronics) with 24,441 units in stock, followed by RC1210FR-07249RL (YAGEO) with 15,729 units.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting environmental and regulatory requirements.

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