RC3225F44R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F44R2CS is a 44.2 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) package. This component is classified as Active product status with moisture-resistant construction and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, supply chain alternatives, or specific application requirements such as automotive qualification or enhanced pulse withstanding capability.

Substiute Parts

RC3225F44R2CS

Samsung Electro-MechanicsIn Stock: 952RC3225F44R2CS Datasheet

Current PartRFQ

CRCW121044R2FKEA

Vishay DaleIn Stock: 13326CRCW121044R2FKEA Datasheet

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ERJ-14NF44R2U

Panasonic Electronic ComponentsIn Stock: 2063ERJ-14NF44R2U Datasheet

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ERJ-P14F44R2U

Panasonic Electronic ComponentsIn Stock: 1769ERJ-P14F44R2U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F44R2CS is determined by the following mandatory parameters:

Core Electrical Compatibility:

• Resistance value: 44.2 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)

Mechanical Compatibility:

• Package / Case: 1210 (3225 Metric) (exact match required)
• Number of Terminations: 2 (exact match required)
• Composition: Thick Film (exact match required)

Regulatory & Environmental:

• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Power Rating Consideration: Substitute parts may have equal or higher power ratings (0.5W or greater) while maintaining all other parameters. The RC3225F44R2CS operates at 0.333W; substitutes rated at 0.5W (1/2W) provide equivalent or superior performance within the same package footprint.

Three substitute parts meet these criteria with variations in manufacturer, product status, and optional automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CRCW121044R2FKEA (Vishay Dale)

The CRCW121044R2FKEA is the preferred substitute for the RC3225F44R2CS. Both components share identical electrical specifications (44.2 Ohms ±1%, ±100ppm/°C, -55°C ~ 155°C operating range) and mechanical compatibility (1210 package, 2 terminations, thick film composition). The CRCW121044R2FKEA carries Active product status with ROHS3 compliance and MSL 1 rating. The higher power rating (0.5W versus 0.333W) provides operational margin within the same package footprint. AEC-Q200 automotive qualification is available for applications requiring automotive-grade components. Tape & Reel packaging is standard.

Secondary Substitute: ERJ-P14F44R2U (Panasonic Electronic Components)

The ERJ-P14F44R2U is an alternative substitute with Active product status. Electrical and mechanical parameters are identical to the primary substitute. This component includes pulse withstanding capability in addition to AEC-Q200 automotive qualification, suitable for applications subject to transient voltage events. Height-seated dimension (0.028" / 0.70mm) is marginally higher than the main part but remains within typical PCB design tolerances for 1210 packages.

Tertiary Substitute: ERJ-14NF44R2U (Panasonic Electronic Components)

The ERJ-14NF44R2U meets all electrical and mechanical substitution criteria with identical specifications to ERJ-P14F44R2U. However, this component carries "Not For New Designs" product status. Selection is limited to legacy design support, design refresh scenarios, or supply continuity for existing production lines. AEC-Q200 qualification is available.

Frequently Asked Questions (FAQ)

Q: Can the CRCW121044R2FKEA directly replace the RC3225F44R2CS without PCB layout modification?

A: Yes. Both components use the 1210 (3225 Metric) package with identical footprint dimensions (0.126" L x 0.098-0.100" W). Dimensional variations in width (2.50mm versus 2.55mm) and height (0.024-0.028" versus 0.026") are within standard PCB design tolerances for this package class. No layout modification is required.

Q: What is the significance of the higher power rating (0.5W) in substitute parts compared to the original 0.333W rating?

A: The higher power rating indicates greater thermal dissipation capability within the same package size. For the RC3225F44R2CS application operating at 0.333W, a 0.5W-rated substitute provides operational margin and thermal headroom. This does not alter electrical performance at the specified operating point.

Q: Are the substitute parts suitable for automotive applications?

A: CRCW121044R2FKEA, ERJ-14NF44R2U, and ERJ-P14F44R2U all carry AEC-Q200 automotive qualification. The RC3225F44R2CS does not specify automotive qualification. Selection of AEC-Q200 qualified substitutes is appropriate for automotive applications; non-automotive applications may use any substitute meeting electrical and mechanical criteria.

Q: Why is ERJ-14NF44R2U marked "Not For New Designs"?

A: "Not For New Designs" indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. This part remains available for legacy support and existing production continuity. For new designs, CRCW121044R2FKEA or ERJ-P14F44R2U are preferred.

Q: What is the difference between ERJ-P14F44R2U and ERJ-14NF44R2U?

A: Both parts share identical electrical specifications and AEC-Q200 qualification. ERJ-P14F44R2U includes pulse withstanding capability and carries Active product status. ERJ-14NF44R2U does not specify pulse withstanding and carries "Not For New Designs" status. For new designs requiring pulse immunity, ERJ-P14F44R2U is the appropriate selection.

Q: Are all substitute parts ROHS3 compliant and MSL 1 rated?

A: Yes. All three substitute parts (CRCW121044R2FKEA, ERJ-14NF44R2U, ERJ-P14F44R2U) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the RC3225F44R2CS environmental and regulatory classification.

Q: Can these substitutes be used interchangeably in existing designs?

A: Yes, within the constraints of product status and application requirements. All substitutes meet the core electrical (44.2 Ohms ±1%, ±100ppm/°C, -55°C ~ 155°C) and mechanical (1210 package, 2 terminations, thick film) specifications. Product status and optional qualifications (automotive, pulse withstanding) should be evaluated against specific design requirements.