ERJ-S08F2491V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F2491V is a 2.49 kOhm ±1% 0.25W (1/4W) chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for automotive and industrial applications requiring high reliability in harsh environments. The product is currently active and available in stock (712 pcs).

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements change, or when alternative manufacturers offer superior lead times or cost advantages while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	2.49 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
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F2491V is determined by strict equivalence across the following critical parameters:

Resistance Value: 2.49 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power Rating: 0.25W (1/4W) minimum
Package: 1206 (3216 Metric) form factor
Composition: Thick film construction
Temperature Coefficient: ±100ppm/°C
Operating Temperature Range: -55°C ~ 155°C minimum
Termination Count: 2 terminations
Environmental Compliance: ROHS3 Compliant, REACH Unaffected

All substitute parts listed below meet these core electrical and mechanical requirements. One substitute part (CRCW12062K49FKEAHP) features a higher power rating (0.75W) and is suitable for applications requiring additional thermal margin. One substitute part (CRCW12062K49FKTA) carries RoHS non-compliance and REACH-affected status and is restricted to legacy applications only.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp (°C)	AEC-Q200	RoHS Status	Product Status	Inventory (pcs)
ERJ-S08F2491V	Panasonic	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	ROHS3	Active	712
ERJ-8ENF2491V	Panasonic	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	ROHS3	Not For New Designs	149076
AC1206FR-072K49L	YAGEO	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	ROHS3	Active	890
CR1206-FX-2491ELF	Bourns Inc.	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	No	ROHS3	Active	699858
CRCW12062K49FKEA	Vishay Dale	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	ROHS3	Active	34838
CRCW12062K49FKEAHP	Vishay Dale	2.49k	±1%	0.75	1206	±100ppm/°C	-55~155	Yes	ROHS3	Active	43535
CRCW12062K49FKTA	Vishay Dale	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	Non-compliant	Active	13708
RC1206FR-072K49L	YAGEO	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	No	ROHS3	Active	10200
RMCF1206FG2K49	Stackpole Electronics	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	ROHS3	Active	9916
RMCF1206FT2K49	Stackpole Electronics	2.49k	±1%	0.25	1206	±100ppm/°C	-55~155	Yes	ROHS3	Active	113629

Engineering Selection Recommendations

Preferred Substitutes (Active Product Status + Full Compliance)

For new designs and production applications, select from parts with Active product status and ROHS3 compliance:

RMCF1206FT2K49 (Stackpole Electronics): Highest inventory availability (113,629 pcs), AEC-Q200 qualified, ROHS3 compliant, active product status. Recommended for high-volume applications.
CRCW12062K49FKEA (Vishay Dale): AEC-Q200 qualified, ROHS3 compliant, active product status. Suitable for automotive and industrial applications.
AC1206FR-072K49L (YAGEO): AEC-Q200 qualified, moisture-resistant feature, ROHS3 compliant, active product status.
RMCF1206FG2K49 (Stackpole Electronics): AEC-Q200 qualified, ROHS3 compliant, active product status.

Higher Power Rating Option

CRCW12062K49FKEAHP (Vishay Dale): 0.75W power rating with pulse withstanding capability. Use only when circuit design requires thermal margin beyond 0.25W specification. Maintains AEC-Q200 qualification and ROHS3 compliance.

Legacy Applications Only

CRCW12062K49FKTA (Vishay Dale): RoHS non-compliant and REACH-affected. Restricted to legacy systems and repair applications only. Not suitable for new designs.

Discontinued Product Status

ERJ-8ENF2491V (Panasonic): Marked "Not For New Designs." Use only for replacement in existing systems or when primary part is unavailable.

Non-Automotive Applications

CR1206-FX-2491ELF (Bourns Inc.): Lacks AEC-Q200 qualification. Suitable for industrial and consumer applications not requiring automotive certification.
RC1206FR-072K49L (YAGEO): Lacks AEC-Q200 qualification. Suitable for non-automotive applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute ERJ-S08F2491V with a part having different resistance value?

A: No. Substitution requires exact resistance match of 2.49 kOhms. Different resistance values will alter circuit performance and are not acceptable substitutes.

Q: What is the significance of AEC-Q200 qualification?

A: AEC-Q200 certification indicates the part meets automotive reliability standards for passive components. For automotive applications, AEC-Q200 qualified parts are required. Non-qualified parts may be used in industrial or consumer applications where automotive standards are not mandated.

Q: Can I use CRCW12062K49FKEAHP (0.75W) in place of ERJ-S08F2491V (0.25W)?

A: Yes, with design review. The 0.75W part is electrically and mechanically compatible and provides additional thermal margin. However, verify that circuit board layout and thermal management accommodate the higher power rating. This substitution is acceptable for applications where increased power dissipation capacity is beneficial or neutral.

Q: Why is CRCW12062K49FKTA listed as restricted?

A: CRCW12062K49FKTA carries RoHS non-compliance and REACH-affected status. It is restricted to legacy system repairs and cannot be used in new designs or products subject to environmental compliance regulations.

Q: Are all listed substitutes available in the same packaging format?

A: Yes. All substitute parts are supplied in Tape & Reel (TR) packaging in 1206 (3216 Metric) form factor, ensuring compatibility with standard SMD assembly processes.

Q: What is the difference between ERJ-S08F2491V and ERJ-8ENF2491V?

A: Both are Panasonic 2.49k ±1% 1206 resistors with identical electrical specifications. ERJ-8ENF2491V is marked "Not For New Designs," indicating it is a legacy product. ERJ-S08F2491V is the current active product. For new designs, use ERJ-S08F2491V; for existing system repairs, ERJ-8ENF2491V is acceptable.

Q: Do all substitutes meet the -55°C to 155°C operating temperature range?

A: Yes. All listed substitute parts operate across the full -55°C to 155°C temperature range, matching the primary part specification.

Q: Which substitute offers the best lead time and inventory availability?

A: RMCF1206FT2K49 (Stackpole Electronics) offers the highest inventory level at 113,629 pcs, providing optimal lead time and availability for high-volume production.

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