ERJ-S08F3403V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F3403V is a 340 kOhms ±1% 0.25W 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 applications requiring high reliability in automotive and industrial environments. The part is currently in active production status with 1012 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when design requirements shift to alternative suppliers, or when production volumes require sourcing from multiple qualified manufacturers while maintaining identical electrical and mechanical performance.

Key Parameters

Parameter	Value
Resistance	340 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-S08F3403V is determined by strict equivalence across the following parameters:

Resistance value: 340 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)
RoHS compliance: ROHS3 Compliant (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

All qualified substitutes listed below meet these criteria and are electrically and mechanically interchangeable with the primary part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff	Operating Temp	Product Status	Inventory (Pcs)
ERJ-S08F3403V	Panasonic Electronic Components	340 kOhms	±1%	0.25	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Active	1012
ERJ-8ENF3403V	Panasonic Electronic Components	340 kOhms	±1%	0.25	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	45491
CRCW1206340KFKEA	Vishay Dale	340 kOhms	±1%	0.25	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Active	24582
RC1206FR-07340KL	YAGEO	340 kOhms	±1%	0.25	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Active	56945
RMCF1206FT340K	Stackpole Electronics Inc	340 kOhms	±1%	0.25	1206	Thick Film	±100ppm/°C	-55°C ~ 155°C	Active	3704

Engineering Selection Recommendations

For new designs, select from parts with Active product status: CRCW1206340KFKEA (Vishay Dale), RC1206FR-07340KL (YAGEO), or RMCF1206FT340K (Stackpole Electronics Inc). These three alternatives offer the highest long-term availability and supplier support.

The ERJ-S08F3403V remains the primary choice for existing designs due to its anti-sulfur feature and active production status. The ERJ-8ENF3403V, while electrically equivalent, carries a "Not For New Designs" status and should be used only for legacy system maintenance or when existing inventory must be consumed.

All listed substitutes maintain ROHS3 compliance, MSL 1 rating, and automotive AEC-Q200 qualification (where applicable), ensuring compatibility with automotive and industrial applications requiring high reliability standards.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF3403V be used as a direct replacement for ERJ-S08F3403V?

A: Yes, ERJ-8ENF3403V is electrically and mechanically equivalent. However, it carries "Not For New Designs" status. Use only for legacy system maintenance or inventory consumption in existing production lines.

Q: What is the difference between CRCW1206340KFKEA and RC1206FR-07340KL?

A: Both are electrically identical 340 kOhms ±1% 1206 resistors with identical electrical specifications. The primary differences are manufacturer (Vishay Dale vs. YAGEO) and physical dimensions within tolerance (height-seated: 0.024" vs. 0.026"). Both are suitable for direct substitution.

Q: Are all substitute parts AEC-Q200 qualified?

A: CRCW1206340KFKEA and RMCF1206FT340K carry explicit AEC-Q200 qualification. RC1206FR-07340KL does not list AEC-Q200 in its specifications. For automotive applications requiring AEC-Q200 certification, use CRCW1206340KFKEA or RMCF1206FT340K.

Q: Can I mix different manufacturers in the same production batch?

A: Yes. All listed substitutes meet identical electrical and mechanical specifications. However, document the specific part numbers used in each batch for traceability and quality control purposes.

Q: What does "Not For New Designs" mean for ERJ-8ENF3403V?

A: This designation indicates the manufacturer is phasing out this part number. It remains available but is not recommended for new product development. Existing inventory can be used for legacy system support or ongoing production of established products.

Q: Are there any package or footprint differences between substitutes?

A: All parts use 1206 (3216 Metric) package with identical footprints. Physical dimensions vary slightly within tolerance (length: 0.122" to 0.126", height-seated: 0.024" to 0.028"), but these variations are within standard PCB design tolerances and do not affect assembly or performance.

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