ERJ-S03F4990V Equivalent & Substitute Parts

Part Overview

The ERJ-S03F4990V is a 499 Ohm ±1% 0.1W thick film chip resistor in 0603 (1608 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 active and widely available. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and compliance certifications to ensure direct functional equivalence in circuit applications.

Substiute Parts

ERJ-S03F4990V

Panasonic Electronic ComponentsIn Stock: 956ERJ-S03F4990V Datasheet

Current PartRFQ

ERJ-3EKF4990V

Panasonic Electronic ComponentsIn Stock: 166942ERJ-3EKF4990V Datasheet

SimilarRFQ

RCA0603499RFKEA

Vishay DaleIn Stock: 63709RCA0603499RFKEA Datasheet

DirectRFQ

AC0603FR-07499RL

YAGEOIn Stock: 38594AC0603FR-07499RL Datasheet

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CR0603-FX-4990ELF

Bourns Inc.In Stock: 471001CR0603-FX-4990ELF Datasheet

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RC0603FR-07499RL

YAGEOIn Stock: 5143RC0603FR-07499RL Datasheet

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RMCF0603FT499R

Stackpole Electronics IncIn Stock: 57420RMCF0603FT499R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERJ-S03F4990V are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Resistance value: 499 Ohms
• Tolerance: ±1%
• Power rating: 0.1W (1/10W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package / Case: 0603 (1608 Metric)
• Number of terminations: 2
• Composition: Thick Film

Compliance & Environmental (Must Match or Exceed):

• RoHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• REACH Unaffected status

All identified substitute parts meet these criteria. Variations in packaging format (Tape & Reel vs. Cut Tape) and minor dimensional tolerances do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

ERJ-3EKF4990V (Panasonic) and RCA0603499RFKEA (Vishay Dale) are direct functional equivalents. Both maintain AEC-Q200 automotive qualification and identical electrical specifications. ERJ-3EKF4990V offers significantly higher inventory availability. RCA0603499RFKEA retains anti-sulfur coating matching the original part.

Secondary Substitutes (Full Electrical Equivalence):

AC0603FR-07499RL (YAGEO) and RMCF0603FT499R (Stackpole Electronics Inc) provide complete electrical and mechanical compatibility with AEC-Q200 certification. Both are actively produced and widely stocked.

Tertiary Substitutes (Standard Compliance):

RC0603FR-07499RL (YAGEO) and CR0603-FX-4990ELF (Bourns Inc.) meet all core electrical and mechanical requirements with RoHS3 compliance. CR0603-FX-4990ELF offers the highest inventory level. These parts lack AEC-Q200 certification and are suitable for non-automotive applications or where automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3EKF4990V replace ERJ-S03F4990V directly?

A: Yes. Both parts are manufactured by Panasonic, share identical electrical specifications (499 Ω ±1%, 0.1W, ±100ppm/°C), operate across -55°C to 155°C, and hold AEC-Q200 certification. The primary difference is packaging format (Cut Tape & Digi-Reel vs. Tape & Reel) and the absence of anti-sulfur coating in the ERJ-3EKF variant. Electrical and mechanical performance are equivalent.

Q: What is the significance of AEC-Q200 certification?

A: AEC-Q200 certification indicates the part meets automotive-grade reliability standards established by the Automotive Electronics Council. Parts with this certification are qualified for automotive applications. Substitutes without AEC-Q200 (RC0603FR-07499RL, CR0603-FX-4990ELF) are suitable for general industrial and consumer applications but should not be used in automotive circuits requiring this qualification.

Q: Does anti-sulfur coating affect substitution?

A: Anti-sulfur coating provides enhanced protection in corrosive environments. ERJ-S03F4990V and RCA0603499RFKEA include this feature. Substitutes without anti-sulfur coating (ERJ-3EKF4990V, AC0603FR-07499RL, RMCF0603FT499R, RC0603FR-07499RL, CR0603-FX-4990ELF) are functionally equivalent for standard applications. Selection depends on environmental exposure requirements.

Q: Are there dimensional differences between substitute parts?

A: Minor dimensional variations exist within specification tolerances. ERJ-S03F4990V, AC0603FR-07499RL, and RC0603FR-07499RL measure 0.063" L × 0.031" W (1.60mm × 0.80mm). RCA0603499RFKEA and RMCF0603FT499R measure 0.061" L × 0.031" W (1.55mm × 0.80mm) and 0.061" L × 0.031" W (1.55mm × 0.80mm) respectively. All fit the 0603 (1608 Metric) footprint and are mechanically compatible with standard PCB layouts.

Q: What packaging formats are available?

A: Tape & Reel (TR) format is standard for high-volume production and automated assembly. Cut Tape (CT) & Digi-Reel format is available for lower-volume requirements. Both formats contain identical components; packaging selection depends on assembly process and order quantity.

Q: Which substitute offers the best inventory availability?

A: CR0603-FX-4990ELF (Bourns Inc.) has the highest inventory at 470,898 pieces. ERJ-3EKF4990V (Panasonic) follows with 166,876 pieces. For applications not requiring AEC-Q200 certification, CR0603-FX-4990ELF provides immediate availability. For automotive applications, ERJ-3EKF4990V is the preferred high-availability option.