ERJ-S08F46R4V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F46R4V is a 46.4 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 high volume inventory (976 pcs).

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

Key Parameters

Parameter	Value
Resistance	46.4 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
Moisture Sensitivity Level	MSL 1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F46R4V is determined by strict equivalence across the following critical parameters:

Resistance value: 46.4 Ohms (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)
RoHS compliance: ROHS3 Compliant (exact match required)

All five substitute parts listed below meet these criteria. Variations in features (such as anti-sulfur coating or automotive qualification) and physical dimensions (height, length) do not disqualify substitution when the core electrical and thermal specifications are identical.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	MSL	RoHS	Product Status	Inventory (pcs)
ERJ-S08F46R4V	Panasonic Electronic Components	46.4 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	976
ERJ-8ENF46R4V	Panasonic Electronic Components	46.4 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Not For New Designs	45410
CR1206-FX-46R4ELF	Bourns Inc.	46.4 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	25800
CRCW120646R4FKEA	Vishay Dale	46.4 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	21961
RC1206FR-0746R4L	YAGEO	46.4 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	11634
RMCF1206FT46R4	Stackpole Electronics Inc	46.4 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	1	ROHS3	Active	5481

Engineering Selection Recommendations

Primary Selection (Active Status): CRCW120646R4FKEA (Vishay Dale), CR1206-FX-46R4ELF (Bourns Inc.), RC1206FR-0746R4L (YAGEO), and RMCF1206FT46R4 (Stackpole Electronics Inc.) are all active products with full production support and are suitable for new designs.

Secondary Selection (Legacy Status): ERJ-8ENF46R4V (Panasonic Electronic Components) carries a "Not For New Designs" status despite high inventory availability. This part is electrically and mechanically equivalent but should be reserved for legacy system maintenance or existing production lines only.

Automotive Applications: For designs requiring automotive AEC-Q200 qualification, select from: ERJ-S08F46R4V (primary), CRCW120646R4FKEA, RMCF1206FT46R4, or ERJ-8ENF46R4V. The CR1206-FX-46R4ELF and RC1206FR-0746R4L feature moisture resistance instead of automotive qualification and are suitable for non-automotive applications.

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF46R4V be used as a direct replacement for ERJ-S08F46R4V? A: Yes, electrically and mechanically. However, ERJ-8ENF46R4V is marked "Not For New Designs." Use this part only for legacy system support or existing production continuity.

Q: What is the difference between anti-sulfur and moisture-resistant features? A: Anti-sulfur coating (ERJ-S08F46R4V, RMCF1206FT46R4) protects against sulfur contamination in automotive environments. Moisture-resistant coating (CR1206-FX-46R4ELF, RC1206FR-0746R4L) protects against humidity. Both are thick film resistors with identical electrical specifications. Feature selection depends on application environment, not electrical performance.

Q: Are there dimensional differences between substitute parts? A: Minor variations exist in height and length within the 1206 package specification. ERJ-S08F46R4V and RMCF1206FT46R4 are 0.028" (0.70mm) height. CRCW120646R4FKEA is 0.024" (0.60mm). CR1206-FX-46R4ELF is 0.030" (0.75mm). RC1206FR-0746R4L is 0.026" (0.65mm). All dimensions fall within standard 1206 package tolerance and are suitable for standard PCB layouts.

Q: Which substitute offers the best inventory availability? A: ERJ-8ENF46R4V has the highest inventory at 45,410 pcs. Among active products, CR1206-FX-46R4ELF (25,800 pcs) and CRCW120646R4FKEA (21,961 pcs) offer the strongest supply positions.

Q: Can these parts be used interchangeably in automotive applications? A: Parts with AEC-Q200 rating (ERJ-S08F46R4V, CRCW120646R4FKEA, RMCF1206FT46R4, ERJ-8ENF46R4V) are qualified for automotive use. CR1206-FX-46R4ELF and RC1206FR-0746R4L lack automotive qualification and should not be substituted in automotive designs without design review and qualification.

Q: What does MSL 1 rating mean for component handling? A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life with no special moisture control requirements during storage or handling. All listed parts carry this rating.

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