ERJ-S14F27R4U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F27R4U is a 27.4 Ohm ±1% thick film chip resistor manufactured by Panasonic Electronic Components in the 1210 (3225 Metric) package format. This component is rated for 0.5W power dissipation and meets AEC-Q200 automotive qualification standards with anti-sulfur protection. The part is currently in active production status. Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design revisions require alternative sourcing, or when supply chain optimization requires qualified alternatives from different manufacturers.

Substiute Parts

ERJ-S14F27R4U

Panasonic Electronic ComponentsIn Stock: 1013ERJ-S14F27R4U Datasheet

Current PartRFQ

ERJ-14NF27R4U

Panasonic Electronic ComponentsIn Stock: 8897ERJ-14NF27R4U Datasheet

SimilarRFQ

CRCW121027R4FKEA

Vishay DaleIn Stock: 12608CRCW121027R4FKEA Datasheet

SimilarRFQ

RMCF1210FT27R4

Stackpole Electronics IncIn Stock: 5592RMCF1210FT27R4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F27R4U is determined by strict equivalence across the following parameters: resistance value (27.4 Ohms), tolerance (±1%), power rating (0.5W), package format (1210), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and automotive qualification (AEC-Q200). All identified substitute parts meet these criteria. Physical dimensions remain within acceptable tolerances across all candidates. RoHS3 compliance and MSL 1 rating are maintained across all substitutes. Substitution does not require design modification or re-qualification when these parameters are matched.

Parameter Comparison

Engineering Selection Recommendations

For new designs, select from parts with Active product status: CRCW121027R4FKEA (Vishay Dale) or RMCF1210FT27R4 (Stackpole Electronics). Both maintain full AEC-Q200 compliance and ROHS3 certification. The CRCW121027R4FKEA offers a reduced maximum seated height of 0.024" compared to 0.028" for other candidates, which may provide advantages in space-constrained applications. The ERJ-14NF27R4U carries a "Not For New Designs" status and should be used only for legacy system maintenance or existing design support. All four parts are electrically and mechanically interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can ERJ-S14F27R4U be directly replaced with ERJ-14NF27R4U? A: Yes, electrical and mechanical parameters are identical. However, ERJ-14NF27R4U is designated "Not For New Designs," so it should be reserved for legacy applications or existing production support only.

Q: What is the difference between CRCW121027R4FKEA and RMCF1210FT27R4? A: Both parts are electrically equivalent with identical resistance, tolerance, power rating, and temperature specifications. The primary difference is manufacturer (Vishay Dale vs. Stackpole Electronics) and maximum seated height (0.024" vs. 0.028"). Both are Active status parts suitable for new designs.

Q: Are all substitute parts AEC-Q200 qualified? A: Yes, all listed substitute parts carry AEC-Q200 automotive qualification, matching the primary part specification.

Q: Does the height difference between CRCW121027R4FKEA (0.024") and other parts (0.028") affect compatibility? A: The height difference is within acceptable PCB assembly tolerances and does not affect electrical performance. Selection should be based on specific board layout requirements and available clearance.

Q: Are all parts RoHS3 compliant? A: Yes, all parts listed maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards.

Q: Can these parts be used interchangeably in automotive applications? A: Yes, all substitute parts meet AEC-Q200 automotive qualification standards and operate across the identical temperature range (-55°C to 155°C), making them suitable for automotive circuit applications.