ERJ-S14F3481U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F3481U is a 3.48 kOhms ±1% thick film chip resistor manufactured by Panasonic Electronic Components. This 1210 (3225 Metric) package resistor is rated for 0.5W power dissipation and is designed for automotive applications with AEC-Q200 qualification and anti-sulfur protection. The part is currently in active production status with 927 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are maintained across alternative manufacturers.

Substiute Parts

ERJ-S14F3481U

Panasonic Electronic ComponentsIn Stock: 1023ERJ-S14F3481U Datasheet

Current PartRFQ

CRCW12103K48FKEA

Vishay DaleIn Stock: 6145CRCW12103K48FKEA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F3481U is determined by strict equivalence across the following parameters: resistance value (3.48 kOhms), tolerance (±1%), power rating (0.5W), package type (1210 / 3225 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive qualification (AEC-Q200). The CRCW12103K48FKEA from Vishay Dale meets all these criteria and qualifies as a direct substitute. Both parts maintain identical electrical performance specifications and are suitable for equivalent circuit applications in automotive environments.

Parameter Comparison

Engineering Selection Recommendations

Both the ERJ-S14F3481U and CRCW12103K48FKEA are active production parts with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts is based on availability and supply chain requirements. The CRCW12103K48FKEA offers higher inventory availability (6108 units in stock versus 927 units). The seated height difference of 0.004" (0.10mm) is within typical PCB design tolerances for 1210 package resistors and does not affect functional compatibility in standard automotive circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CRCW12103K48FKEA replace ERJ-S14F3481U in automotive applications? A: Yes. Both parts share identical electrical specifications (3.48 kOhms ±1%, 0.5W), package dimensions (1210 / 3225 Metric), and AEC-Q200 automotive qualification. They are functionally equivalent for circuit design purposes.

Q: What is the significance of the height difference between these parts? A: The ERJ-S14F3481U has a maximum seated height of 0.028" (0.70mm) while the CRCW12103K48FKEA measures 0.024" (0.60mm). This 0.004" (0.10mm) difference is within standard PCB design clearance margins for 1210 package components and does not impact mechanical or electrical compatibility.

Q: Are both parts suitable for the full automotive temperature range? A: Yes. Both parts operate across -55°C to 155°C with a temperature coefficient of ±100ppm/°C, meeting automotive environmental requirements.

Q: Do both parts have the same moisture sensitivity rating? A: Yes. Both parts carry MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture protection requirements during storage or handling.

Q: What is the difference in anti-sulfur protection between these parts? A: The ERJ-S14F3481U is explicitly specified with anti-sulfur protection. The CRCW12103K48FKEA specification does not include this feature designation. For applications requiring anti-sulfur protection, the ERJ-S14F3481U is the specified choice.