ERJ-S08F40R2V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F40R2V is a 40.2 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 applications requiring reliability in harsh environments. The product is currently active and available in high volume (680 pcs in stock). Substitute parts are necessary when the primary part is unavailable, when design requirements shift toward alternative manufacturers, or when specific feature sets (such as moisture resistance variants) better suit application needs.

Substiute Parts

ERJ-S08F40R2V

Panasonic Electronic ComponentsIn Stock: 770ERJ-S08F40R2V Datasheet

Current PartRFQ

ERJ-8ENF40R2V

Panasonic Electronic ComponentsIn Stock: 18681ERJ-8ENF40R2V Datasheet

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CR1206-FX-40R2ELF

Bourns Inc.In Stock: 55803CR1206-FX-40R2ELF Datasheet

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CRCW120640R2FKEA

Vishay DaleIn Stock: 10970CRCW120640R2FKEA Datasheet

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RC1206FR-0740R2L

YAGEOIn Stock: 97249RC1206FR-0740R2L Datasheet

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RMCF1206FT40R2

Stackpole Electronics IncIn Stock: 13505RMCF1206FT40R2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F40R2V is determined by strict equivalence across the following parameters: resistance value (40.2 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, REACH Unaffected, EAR99). All identified substitute parts meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) and feature sets (anti-sulfur vs. moisture resistant coatings) do not disqualify substitution but may influence selection based on application-specific constraints. Product status (Active vs. Not For New Designs) is noted for design planning purposes but does not affect electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are electrically and mechanically equivalent to the ERJ-S08F40R2V and meet the same compliance requirements (ROHS3, REACH Unaffected, EAR99). Selection among substitutes should be based on the following criteria:

For automotive and high-reliability applications requiring AEC-Q200 qualification, the CRCW120640R2FKEA (Vishay Dale) and RMCF1206FT40R2 (Stackpole Electronics Inc) are active products with full automotive certification. The ERJ-8ENF40R2V (Panasonic) carries the "Not For New Designs" status and should be avoided in new development unless legacy compatibility is required.

For applications where moisture resistance is a primary design consideration, the CR1206-FX-40R2ELF (Bourns Inc.) and RC1206FR-0740R2L (YAGEO) offer moisture-resistant thick film construction. The CR1206-FX-40R2ELF is available in higher volume (55,740 pcs) compared to other substitutes.

For anti-sulfur applications matching the original ERJ-S08F40R2V specification, no direct substitute with identical anti-sulfur coating is listed; the original part should be prioritized if sulfur resistance is a critical requirement.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts interchangeably with the ERJ-S08F40R2V?

A: Yes, all listed parts are electrically and mechanically equivalent. They share identical resistance (40.2 Ω), tolerance (±1%), power rating (0.25W), package (1206), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). Physical dimensions vary slightly (length 0.122" to 0.126", height 0.024" to 0.030"), but these variations remain within standard PCB layout tolerances for 1206 packages.

Q: What is the difference between anti-sulfur and moisture-resistant coatings?

A: Anti-sulfur coating (ERJ-S08F40R2V) protects against sulfur-containing atmospheric contaminants and is specified for harsh industrial environments. Moisture-resistant coating (CR1206-FX-40R2ELF, RC1206FR-0740R2L) provides protection against humidity and condensation. These are distinct protective mechanisms; selection depends on the specific environmental exposure of the application.

Q: Why is the ERJ-8ENF40R2V marked "Not For New Designs"?

A: This designation indicates that Panasonic has transitioned this part to legacy status. While electrically equivalent and fully functional, it is no longer recommended for new product development. Use active alternatives such as CRCW120640R2FKEA, CR1206-FX-40R2ELF, RC1206FR-0740R2L, or RMCF1206FT40R2 for new designs.

Q: Are all substitute parts AEC-Q200 qualified?

A: No. The ERJ-S08F40R2V, ERJ-8ENF40R2V, CRCW120640R2FKEA, and RMCF1206FT40R2 carry AEC-Q200 automotive qualification. The CR1206-FX-40R2ELF (Bourns) and RC1206FR-0740R2L (YAGEO) do not list AEC-Q200 certification. For automotive applications, select only AEC-Q200 qualified parts.

Q: What is the inventory status of these parts?

A: The ERJ-S08F40R2V has 680 pcs in stock. Among substitutes, RC1206FR-0740R2L (YAGEO) offers the highest availability at 97,157 pcs, followed by CR1206-FX-40R2ELF (Bourns) at 55,740 pcs. Availability should be verified with your supplier for current stock levels.

Q: Do all parts comply with RoHS and REACH regulations?

A: Yes. All listed parts are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.