ERJ-S14F4422U Equivalent & Substitute Parts

Part Overview

The ERJ-S14F4422U is a 44.2 kOhms ±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 features anti-sulfur coating with AEC-Q200 automotive qualification. The part is currently in active production status with 802 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design requirements mandate alternative compliance certifications such as RoHS3 compliance. The ERJ-S14F4422U is RoHS3 compliant, while some substitute options may have different compliance profiles that require engineering evaluation.

Substiute Parts

ERJ-S14F4422U

Panasonic Electronic ComponentsIn Stock: 870ERJ-S14F4422U Datasheet

Current PartRFQ

ERJ-14NF4422U

Panasonic Electronic ComponentsIn Stock: 7051ERJ-14NF4422U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S14F4422U is determined by the following mandatory parameters:

• Resistance value: 44.2 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W minimum
• Package: 1210 (3225 Metric) form factor
• Composition: Thick film construction
• Temperature coefficient: ±100ppm/°C or better
• Operating temperature range: -55°C to 155°C minimum
• Automotive qualification: AEC-Q200 required for automotive applications
• Termination count: 2 terminations

The ERJ-14NF4422U qualifies as a direct substitute based on these parameters. Both parts share identical electrical specifications, package dimensions, and automotive ratings. The primary distinction lies in product lifecycle status and RoHS compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The ERJ-S14F4422U is the preferred selection for new designs due to its active product status and RoHS3 compliance certification. This part meets current regulatory requirements and benefits from ongoing manufacturer support.

The ERJ-14NF4422U is classified as "Not For New Designs" and carries RoHS non-compliant status. This substitute is suitable only for legacy system maintenance, field replacements in existing installations, or applications where RoHS compliance is not mandated. Use of this part in new designs is not recommended.

For applications requiring RoHS3 compliance and automotive AEC-Q200 qualification, the ERJ-S14F4422U remains the specified component. Substitution to the ERJ-14NF4422U should occur only when the primary part is unavailable and regulatory constraints permit non-compliant components.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF4422U be used as a direct replacement for the ERJ-S14F4422U in new automotive designs?

A: No. The ERJ-14NF4422U is marked "Not For New Designs" and is RoHS non-compliant. New designs must use the ERJ-S14F4422U to maintain compliance and manufacturer support.

Q: Are the physical dimensions identical between these two parts?

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

Q: What is the key difference between ERJ-S14F4422U and ERJ-14NF4422U?

A: The primary differences are product lifecycle status and RoHS compliance. The ERJ-S14F4422U is active and RoHS3 compliant. The ERJ-14NF4422U is not recommended for new designs and is RoHS non-compliant. Electrical specifications and package format are identical.

Q: Do both parts meet AEC-Q200 automotive qualification?

A: Yes. Both the ERJ-S14F4422U and ERJ-14NF4422U carry AEC-Q200 automotive qualification and operate across the -55°C to 155°C temperature range.

Q: What is the moisture sensitivity level for these resistors?

A: Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.

Q: Can these parts be used interchangeably in existing field installations?

A: Yes, for field replacement purposes only. Both parts share identical electrical and mechanical specifications. However, new designs must specify the ERJ-S14F4422U.