RC3225F17R8CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F17R8CS is a 17.8 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 and features moisture-resistant construction suitable for general industrial and consumer applications. Substitute parts are necessary when Samsung Electro-Mechanics components are unavailable, when higher power ratings are required for thermal margin, or when automotive-grade certifications are mandated by application requirements.

Substiute Parts

RC3225F17R8CS

Samsung Electro-MechanicsIn Stock: 1108RC3225F17R8CS Datasheet

Current PartRFQ

CRCW121017R8FKEA

Vishay DaleIn Stock: 8930CRCW121017R8FKEA Datasheet

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ERJ-14NF17R8U

Panasonic Electronic ComponentsIn Stock: 7572ERJ-14NF17R8U Datasheet

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ERJ-P14F17R8U

Panasonic Electronic ComponentsIn Stock: 10375ERJ-P14F17R8U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC3225F17R8CS is determined by strict equivalence of the following parameters:

Critical Parameters (Must Match Exactly):

• Resistance value: 17.8 Ohms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Number of Terminations: 2

Allowable Variation:

• Power Rating: The RC3225F17R8CS is rated at 0.333W (1/3W). Substitute parts with equal or higher power ratings (0.5W / 1/2W) are electrically compatible and provide additional thermal margin. Lower power ratings are not acceptable.

Compliance Equivalence:

• RoHS3 Compliant status is maintained across all substitute parts
• MSL 1 (Unlimited) rating is consistent across all options
• REACH Unaffected status applies to all listed substitutes

The three substitute parts listed below meet all critical parameters and are grouped by their enhanced power rating and automotive certifications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Equivalent Functionality): All three substitute parts are electrically and mechanically compatible with the RC3225F17R8CS. The higher power rating (0.5W vs. 0.333W) in substitute parts provides additional thermal headroom without affecting circuit performance.

For Active Product Status: CRCW121017R8FKEA (Vishay Dale) and ERJ-P14F17R8U (Panasonic) maintain Active product status. ERJ-14NF17R8U is classified as Not For New Designs and should be avoided in new product development.

For Automotive Applications: All three substitute parts carry AEC-Q200 automotive qualification. ERJ-P14F17R8U additionally features pulse withstanding capability, providing enhanced robustness for automotive transient conditions.

For General Industrial Applications: CRCW121017R8FKEA offers the most straightforward substitution with Active status and standard automotive qualification.

For High-Reliability Applications: ERJ-P14F17R8U is recommended due to Active product status combined with pulse withstanding characteristics and AEC-Q200 certification.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RC3225F17R8CS with a part rated at 0.5W (1/2W) instead of 0.333W (1/3W)?

A: Yes. A higher power rating is an allowable substitution. The 0.5W rated parts (CRCW121017R8FKEA, ERJ-14NF17R8U, ERJ-P14F17R8U) will function identically in circuits designed for the 0.333W RC3225F17R8CS. The higher power rating provides additional thermal margin and does not affect electrical performance.

Q: Are all substitute parts in the same 1210 package?

A: Yes. All substitute parts use the 1210 (3225 Metric) package with identical footprints. Physical dimensions are equivalent within manufacturing tolerances, ensuring direct PCB compatibility.

Q: What is the difference between ERJ-14NF17R8U and ERJ-P14F17R8U?

A: Both are Panasonic 17.8 Ohm 1% 1210 resistors with AEC-Q200 certification. The primary difference is product status: ERJ-14NF17R8U is Not For New Designs, while ERJ-P14F17R8U is Active. Additionally, ERJ-P14F17R8U includes pulse withstanding capability. For new designs, ERJ-P14F17R8U is the preferred Panasonic option.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All listed substitute parts (CRCW121017R8FKEA, ERJ-14NF17R8U, ERJ-P14F17R8U) are ROHS3 Compliant with MSL 1 (Unlimited) rating and REACH Unaffected status, matching the RC3225F17R8CS compliance profile.

Q: Which substitute part should I choose for automotive applications?

A: All three substitute parts carry AEC-Q200 automotive qualification. For new automotive designs, ERJ-P14F17R8U is recommended due to Active product status and pulse withstanding features. CRCW121017R8FKEA is an alternative with Active status. Avoid ERJ-14NF17R8U in new designs.

Q: Is the temperature coefficient identical across all parts?

A: Yes. All parts, including the main part RC3225F17R8CS and all three substitutes, have a temperature coefficient of ±100ppm/°C and operate across the identical temperature range of -55°C ~ 155°C.