ERJ-S08F5493V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F5493V is a 549 kOhms ±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 applications requiring high reliability in harsh environments. The product is currently active in production. Substitute parts may be required due to inventory constraints, regional availability, or design revision requirements while maintaining equivalent electrical and mechanical performance.

Key Parameters

Parameter	Value
Resistance	549 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
Ratings	AEC-Q200 (Automotive)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F5493V is determined by strict equivalence across the following critical parameters:

Resistance value: 549 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.25W / 1/4W (exact match required)
Package: 1206 (3216 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C ~ 155°C (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

All substitute parts listed below meet these criteria. Variations in product status, compliance certifications, and physical dimensions (height, length, width) within acceptable tolerances do not affect functional substitutability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Composition	Temp Coeff	Op. Temp Range	MSL	RoHS Status	Product Status
ERJ-S08F5493V	Panasonic	549 kΩ	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active
ERJ-8ENF5493V	Panasonic	549 kΩ	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Not For New Designs
CRCW1206549KFKEA	Vishay Dale	549 kΩ	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active
CRCW1206549KFKTA	Vishay Dale	549 kΩ	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	RoHS Non-compliant	Active
RC1206FR-07549KL	YAGEO	549 kΩ	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active
RMCF1206FT549K	Stackpole Electronics	549 kΩ	±1%	0.25W	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

CRCW1206549KFKEA (Vishay Dale), RC1206FR-07549KL (YAGEO), and RMCF1206FT549K (Stackpole Electronics) are all active products with ROHS3 compliance and full AEC-Q200 automotive qualification. These parts are suitable for new design implementations and provide equivalent performance to the ERJ-S08F5493V.

Secondary Substitute (Active but with Compliance Consideration):

CRCW1206549KFKTA (Vishay Dale) is functionally equivalent but carries RoHS non-compliance status and REACH affected designation. This part is suitable only for applications where RoHS compliance is not a requirement.

Legacy Substitute (Not Recommended for New Designs):

ERJ-8ENF5493V (Panasonic) is marked as "Not For New Designs" and should be used only for replacement or repair of existing assemblies where design continuity is necessary.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the ERJ-S08F5493V?

A: Yes, all listed substitute parts meet the critical electrical and mechanical parameters: 549 kOhms ±1%, 0.25W power rating, 1206 package, thick film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Physical dimension variations (height, length, width) are within acceptable tolerances for PCB assembly.

Q: What is the difference between the ERJ-S08F5493V and ERJ-8ENF5493V?

A: Both are Panasonic 549 kOhms ±1% 1206 resistors with identical electrical specifications. The ERJ-8ENF5493V is an older series marked "Not For New Designs." Use ERJ-8ENF5493V only for replacement in existing products.

Q: Are all substitute parts AEC-Q200 qualified?

A: The ERJ-S08F5493V, ERJ-8ENF5493V, CRCW1206549KFKEA, CRCW1206549KFKTA, and RMCF1206FT549K carry AEC-Q200 automotive qualification. RC1206FR-07549KL does not list AEC-Q200 rating but is qualified for moisture-resistant applications.

Q: Which substitute should I choose for automotive applications?

A: For automotive applications requiring AEC-Q200 qualification and ROHS3 compliance, select CRCW1206549KFKEA, RC1206FR-07549KL, or RMCF1206FT549K. Avoid CRCW1206549KFKTA due to RoHS non-compliance.

Q: What is the significance of the "Not For New Designs" status on ERJ-8ENF5493V?

A: This designation indicates the part is in mature/legacy phase. While functionally equivalent, it should not be selected for new product designs. Use it only for field replacements or repair of existing assemblies using this part number.

Q: Are there any physical dimension differences I should consider?

A: All parts use the 1206 (3216 Metric) package. Height variations range from 0.024" to 0.028" (0.60mm to 0.70mm), which are within standard PCB assembly tolerances and do not affect interchangeability.

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