ERJ-S14F4423U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F4423U is a 442 kOhms ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by Panasonic Electronic Components. This component features anti-sulfur coating and AEC-Q200 automotive qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary component experiences supply constraints, inventory depletion, or when design requirements permit selection from qualified alternatives meeting identical electrical and mechanical specifications.

Substiute Parts

ERJ-S14F4423U

Panasonic Electronic ComponentsIn Stock: 1083ERJ-S14F4423U Datasheet

Current PartRFQ

ERJ-14NF4423U

Panasonic Electronic ComponentsIn Stock: 8027ERJ-14NF4423U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F4423U is determined by strict equivalence across the following parameters:

• Resistance value: 442 kOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Package: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• AEC-Q200 automotive qualification
• Termination count: 2
• MSL rating: 1 (Unlimited)

The ERJ-14NF4423U from Panasonic Electronic Components meets all electrical and mechanical parameters required for direct substitution. This part maintains identical resistance, tolerance, power rating, package dimensions, and thermal characteristics. Both components are qualified to AEC-Q200 standards and feature the same MSL rating, ensuring compatibility in automotive and industrial applications.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S14F4423U is the preferred selection for new designs due to its active production status and ROHS3 compliance. This part ensures long-term availability and meets current environmental regulatory requirements.

The ERJ-14NF4423U is electrically and mechanically equivalent and maintains AEC-Q200 automotive qualification. However, this part carries a "Not For New Designs" status and does not meet ROHS3 compliance. Selection of ERJ-14NF4423U is appropriate only for legacy system maintenance, field replacements, or applications where RoHS compliance is not required.

Both parts are manufactured by Panasonic Electronic Components and share identical electrical performance characteristics, thermal behavior, and package footprint. The choice between these parts should be driven by compliance requirements and design phase considerations rather than functional performance.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF4423U be used as a direct replacement for ERJ-S14F4423U in new designs?

A: No. While ERJ-14NF4423U is electrically and mechanically equivalent, it carries a "Not For New Designs" status and lacks ROHS3 compliance. New designs must use ERJ-S14F4423U to ensure regulatory compliance and long-term supply availability.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts use the 1210 (3225 Metric) package with identical dimensions of 0.126" L x 0.098" W (3.20mm x 2.50mm) and maximum seated height of 0.028" (0.70mm). PCB footprints are interchangeable.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both ERJ-S14F4423U and ERJ-14NF4423U are qualified to AEC-Q200 standards, suitable for automotive applications requiring high reliability.

Q: What is the key difference between these substitute parts?

A: The primary differences are product status and environmental compliance. ERJ-S14F4423U is in active production with ROHS3 compliance, while ERJ-14NF4423U is marked "Not For New Designs" and is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Can these parts be used interchangeably in existing production?

A: Interchangeability depends on design documentation and compliance requirements. If the original design specifies ERJ-S14F4423U, substitution with ERJ-14NF4423U requires engineering review to confirm RoHS compliance is not mandated for the application.

Q: What does MSL 1 (Unlimited) mean for these components?

A: MSL 1 rating indicates unlimited shelf life without moisture baking requirements. These parts can be stored and handled under standard conditions without special moisture control procedures.