ERJ-S08F5490V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F5490V is a 549 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The product is currently active and available in stock (1067 Pcs). Equivalent and substitute parts are necessary when the primary part is unavailable, when design flexibility across suppliers is required, or when specific manufacturing or compliance requirements necessitate alternative sources.

Key Parameters

Parameter	Value
Resistance	549 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 ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F5490V is determined by strict equivalence across the following parameters: resistance value (549 Ohms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3, MSL 1). All identified substitute parts meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) within the 1206 package specification, packaging format (Tape & Reel vs. Cut Tape), and product status do not affect functional substitutability. Automotive AEC-Q200 qualification is present in most substitutes but is not a mandatory substitution criterion; however, it is noted where applicable for applications requiring automotive-grade components.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory (Pcs)
ERJ-S08F5490V	Panasonic	549 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	1067
ERJ-8ENF5490V	Panasonic	549 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	61065
CRCW1206549RFKEA	Vishay Dale	549 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	15787
RC1206FR-07549RL	YAGEO	549 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	12800
RMCF1206FT549R	Stackpole Electronics Inc	549 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	1538

Engineering Selection Recommendations

For new designs, CRCW1206549RFKEA (Vishay Dale) and RMCF1206FT549R (Stackpole Electronics Inc) are preferred substitutes, as both are active products with AEC-Q200 automotive qualification and ROHS3 compliance. CRCW1206549RFKEA offers the highest inventory availability (15787 Pcs) among active substitutes. RC1206FR-07549RL (YAGEO) is functionally equivalent and active but lacks AEC-Q200 qualification; this part is suitable for non-automotive applications or where automotive qualification is not required. ERJ-8ENF5490V (Panasonic) is marked "Not For New Designs" and should be avoided in new product development despite high inventory levels; this part may be used only for legacy system maintenance or repair where the original part specification is mandatory.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF5490V be used as a direct replacement for ERJ-S08F5490V? A: Electrically and mechanically, yes. Both parts are 549 Ohm ±1% 0.25W 1206 thick film resistors with identical electrical specifications. However, ERJ-8ENF5490V is marked "Not For New Designs" by Panasonic and should not be used in new product development. Use only for legacy system support.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel (TR) packaging is supplied on continuous tape for automated pick-and-place assembly. Cut Tape (CT) is supplied in shorter tape segments. Both formats contain identical components; packaging choice depends on assembly equipment and volume requirements. RC1206FR-07549RL uses Cut Tape & Digi-Reel format, while other substitutes use Tape & Reel.

Q: Is AEC-Q200 qualification required for all applications? A: AEC-Q200 qualification is mandatory for automotive applications and recommended for high-reliability industrial environments. For general-purpose applications, non-AEC-Q200 parts such as RC1206FR-07549RL are acceptable. Verify application requirements before selecting a substitute.

Q: Are there physical dimension differences between substitutes? A: Minor variations exist within the 1206 package specification. Length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), and height ranges from 0.024" to 0.028" (0.60mm to 0.70mm). These variations are within standard 1206 tolerances and do not affect PCB layout or assembly compatibility.

Q: What does ROHS3 Compliant mean? A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the part meets EU environmental regulations restricting lead, cadmium, mercury, and other hazardous substances. All listed substitutes are ROHS3 compliant.

Q: Can I mix different manufacturers' parts in the same assembly? A: Yes. All listed substitutes meet identical electrical and mechanical specifications. Mixing manufacturers in the same assembly is acceptable from a functional standpoint. However, verify procurement, traceability, and quality documentation requirements for your specific application or industry standard.

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