RC3225F1582CS Equivalent & Substitute Parts

Part Overview

The RC3225F1582CS is a 15.8 kOhms ±1% 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 is designed for moisture-resistant applications across industrial and commercial temperature ranges. The part maintains Active product status with 893 units currently in stock.

Substitute parts become necessary when primary inventory is depleted, when design requirements shift toward higher power ratings, or when supply chain constraints require alternative sourcing from qualified manufacturers. The RC3225F1582CS can be substituted with equivalent resistors that maintain identical electrical specifications while potentially offering different power ratings, packaging formats, or automotive-grade certifications.

Substiute Parts

RC3225F1582CS

Samsung Electro-MechanicsIn Stock: 972RC3225F1582CS Datasheet

Current PartRFQ

ERJ-14NF1582U

Panasonic Electronic ComponentsIn Stock: 5331ERJ-14NF1582U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1582CS is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

• Resistance Value: 15.8 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package / Case: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)

Flexible Parameters (Substitution Allowed):

• Power Rating: May be equal to or greater than 0.333W
• Packaging Format: May differ (Tape & Reel vs. bulk)
• Product Status: May differ (Active vs. Not For New Designs)
• Certifications: May include additional qualifications (e.g., AEC-Q200)

The ERJ-14NF1582U from Panasonic Electronic Components qualifies as a direct substitute because it maintains all mandatory electrical and mechanical parameters while offering an increased power rating of 0.5W (1/2W) and automotive-grade AEC-Q200 certification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (RC3225F1582CS): The Samsung Electro-Mechanics RC3225F1582CS maintains Active product status and is the preferred selection for new designs and ongoing production. With 893 units in current inventory, this part provides immediate availability and long-term supply continuity. The standard moisture-resistant thick film construction meets general industrial requirements across the full -55°C to 155°C operating range.

Substitute Part (ERJ-14NF1582U): The Panasonic ERJ-14NF1582U qualifies as a direct electrical and mechanical substitute with the following considerations:

• Power Rating Advantage: The 0.5W rating provides 50% additional thermal headroom compared to the 0.333W primary part, allowing operation in higher-dissipation applications without derating.
• Automotive Certification: AEC-Q200 qualification indicates enhanced reliability testing and is required for automotive and mission-critical applications.
• Product Status Limitation: The "Not For New Designs" status indicates Panasonic is transitioning this part toward obsolescence. Use only when primary part inventory is unavailable or when automotive certification is mandatory.
• Packaging Consideration: Tape & Reel format is standard for high-volume production; bulk packaging may require special order.

Both parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings, ensuring compatibility with modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q1: Can the ERJ-14NF1582U replace the RC3225F1582CS in existing designs?

A: Yes. The ERJ-14NF1582U maintains identical resistance value (15.8 kOhms), tolerance (±1%), package format (1210), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C). The higher power rating (0.5W vs. 0.333W) is a non-limiting advantage. Direct substitution is electrically and mechanically valid.

Q2: What is the significance of the "Not For New Designs" status on the ERJ-14NF1582U?

A: This status indicates that Panasonic is discontinuing this part number for new product development. While the part remains available in current inventory (5308 units), it should be used only for replacement, repair, or when the RC3225F1582CS is unavailable. For new designs, the RC3225F1582CS is the recommended choice.

Q3: Does the increased power rating of the ERJ-14NF1582U affect circuit performance?

A: No. Power rating defines the maximum power the resistor can safely dissipate without exceeding temperature limits. A higher power rating does not change the resistor's electrical behavior in the circuit. If the circuit dissipates 0.2W through the resistor, both the 0.333W and 0.5W parts operate identically.

Q4: Are there packaging differences between these parts?

A: Yes. The RC3225F1582CS is supplied in bulk packaging, while the ERJ-14NF1582U is supplied in Tape & Reel (TR) format. Tape & Reel is standard for automated assembly lines. If bulk packaging is required, special orders may apply to the Panasonic part.

Q5: Do both parts meet the same compliance standards?

A: Yes. Both the RC3225F1582CS and ERJ-14NF1582U are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) ratings. The ERJ-14NF1582U includes additional AEC-Q200 automotive certification, which is a superset of standard industrial requirements.

Q6: What is the temperature coefficient, and why does it matter?

A: The temperature coefficient (±100ppm/°C) specifies how much the resistance value changes per degree Celsius. Both parts have identical coefficients, ensuring predictable performance across the -55°C to 155°C operating range. This parameter is critical for precision analog circuits and temperature-sensitive applications.

Q7: Can these parts be used interchangeably in high-reliability applications?

A: The RC3225F1582CS is suitable for standard industrial applications. The ERJ-14NF1582U, with AEC-Q200 certification, is qualified for automotive and mission-critical applications requiring enhanced reliability testing. Selection depends on application requirements, not interchangeability.