RC3225J3R3CS Equivalent & Substitute Parts

Part Overview

The RC3225J3R3CS is a 3.3 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format. This component is rated for 0.333W (1/3W) power dissipation and operates across the temperature range of -55°C to 155°C. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating and is currently in active production status with 926 pieces available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while potentially offering improved specifications, enhanced certifications, or superior availability. The RC3225J3R3CS has one qualified substitute that meets or exceeds the core electrical and mechanical requirements.

Substiute Parts

RC3225J3R3CS

Samsung Electro-MechanicsIn Stock: 940RC3225J3R3CS Datasheet

Current PartRFQ

KTR25JZPF3R30

Rohm SemiconductorIn Stock: 5213KTR25JZPF3R30 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225J3R3CS is determined by the following core parameters:

Mandatory Matching Parameters:

• Resistance value: 3.3 Ohms
• Package format: 1210 (3225 Metric)
• Power rating: 0.333W minimum
• Operating temperature range: -55°C to 155°C minimum
• Number of terminations: 2
• Composition: Thick Film
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Tolerance may be equal or tighter (±5% or better)
• Temperature coefficient may be equal or lower
• Additional certifications (such as AEC-Q200) are permissible
• Moisture sensitivity level may be equal or superior
• Packaging format may differ (bulk to Tape & Reel acceptable)

The identified substitute KTR25JZPF3R30 meets all mandatory parameters while providing improved tolerance (±1% versus ±5%) and automotive-grade certification (AEC-Q200).

Parameter Comparison

Engineering Selection Recommendations

RC3225J3R3CS Selection Criteria: The RC3225J3R3CS is appropriate for applications requiring a standard tolerance (±5%) 3.3 Ohm thick film resistor in the 1210 package. This part maintains active production status and is ROHS3 compliant with unlimited moisture sensitivity rating. Selection of this part is suitable when tolerance specifications do not require tighter control and automotive-grade certification is not a requirement.

KTR25JZPF3R30 Selection Criteria: The KTR25JZPF3R30 is appropriate for applications requiring improved tolerance control (±1% versus ±5%) or automotive-grade reliability. This substitute provides AEC-Q200 certification, indicating qualification for automotive applications with enhanced quality and reliability standards. The KTR25JZPF3R30 maintains identical electrical performance across the full operating temperature range and is mechanically compatible with the RC3225J3R3CS footprint. Higher inventory availability (5118 pieces) supports extended production runs or supply chain continuity requirements.

Both parts are ROHS3 compliant, REACH unaffected, and classified under identical ECCN and HTSUS codes, ensuring regulatory equivalence for procurement and export purposes.

Frequently Asked Questions (FAQ)

Q: Can the KTR25JZPF3R30 be used as a direct replacement for the RC3225J3R3CS?

A: Yes. Both parts share identical resistance (3.3 Ohms), power rating (0.333W), package format (1210), operating temperature range (-55°C to 155°C), and termination count (2). The KTR25JZPF3R30 provides tighter tolerance (±1% versus ±5%) and automotive certification, making it functionally equivalent or superior for direct substitution.

Q: What are the physical compatibility considerations?

A: Both parts use the 1210 (3225 Metric) package with identical maximum seated height (0.026" / 0.65mm). Length dimensions are identical (0.126" / 3.20mm). Width dimensions differ slightly (0.100" / 2.55mm for RC3225J3R3CS versus 0.098" / 2.50mm for KTR25JZPF3R30), but this 0.002" (0.05mm) difference is within standard PCB pad tolerance and does not affect footprint compatibility.

Q: Does the improved tolerance of the KTR25JZPF3R30 affect circuit performance?

A: The KTR25JZPF3R30 tolerance of ±1% is tighter than the RC3225J3R3CS tolerance of ±5%. In applications where resistance value accuracy is critical, the KTR25JZPF3R30 provides superior performance. In applications where ±5% tolerance is acceptable, both parts perform identically.

Q: What is the significance of the AEC-Q200 certification on the KTR25JZPF3R30?

A: AEC-Q200 is an automotive industry standard qualification that certifies component reliability for automotive applications. This certification indicates the KTR25JZPF3R30 has undergone enhanced testing and quality verification. For non-automotive applications, this certification provides no functional difference but indicates higher manufacturing standards.

Q: Are there packaging format differences between these parts?

A: The RC3225J3R3CS is supplied in bulk packaging, while the KTR25JZPF3R30 is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and high-volume production. Both formats contain identical components; packaging format selection depends on assembly methodology and production volume requirements.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified under identical ECCN (EAR99) and HTSUS (8533.21.0030) codes. Regulatory compliance is equivalent for procurement, manufacturing, and export purposes.

Q: What is the temperature coefficient difference, and does it matter?

A: The RC3225J3R3CS has a temperature coefficient of ±300ppm/°C, while the KTR25JZPF3R30 has ±100ppm/°C. Lower temperature coefficient indicates better resistance stability across temperature variations. For applications operating across the full -55°C to 155°C range, the KTR25JZPF3R30 provides superior performance stability.