RC3225F4751CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4751CS is a 4.75 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 with moisture-resistant construction and operates across the temperature range of -55°C to 155°C. The part maintains Active product status with 850 units currently in stock.

Equivalent and substitute parts are necessary when the original manufacturer part becomes unavailable, when supply chain constraints require alternative sourcing, or when design requirements permit higher power ratings or enhanced certifications such as automotive AEC-Q200 qualification.

Substiute Parts

RC3225F4751CS

Samsung Electro-MechanicsIn Stock: 915RC3225F4751CS Datasheet

Current PartRFQ

RC1210FR-074K75L

YAGEOIn Stock: 11081RC1210FR-074K75L Datasheet

UpgradeRFQ

CRCW12104K75FKEA

Vishay DaleIn Stock: 25241CRCW12104K75FKEA Datasheet

SimilarRFQ

ERJ-14NF4751U

Panasonic Electronic ComponentsIn Stock: 16788ERJ-14NF4751U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4751CS is determined by strict adherence to the following parameters:

Critical Parameters (Must Match Exactly):

• Resistance Value: 4.75 kOhms
• Tolerance: ±1%
• Package / Case: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Number of Terminations: 2
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameter:

• Power Rating: Substitutes may have equal or higher power ratings (0.333W or greater). Higher power ratings provide design margin and do not compromise circuit functionality when the original specification is met or exceeded.

All substitute parts listed below satisfy these criteria and maintain compatibility with applications designed for the RC3225F4751CS.

Parameter Comparison

Engineering Selection Recommendations

RC1210FR-074K75L (YAGEO): This substitute maintains Active product status and provides a 0.5W power rating upgrade over the original 0.333W specification. The part is suitable for new designs and offers increased design margin. YAGEO RC series components are widely available with 11,054 units in current inventory.

CRCW12104K75FKEA (Vishay Dale): This substitute combines Active product status with AEC-Q200 automotive qualification. The 0.5W power rating and automotive certification make this part suitable for applications requiring enhanced reliability standards. Inventory availability is high at 25,200 units.

ERJ-14NF4751U (Panasonic): This substitute carries AEC-Q200 automotive certification and a 0.5W power rating. However, the product status is listed as "Not For New Designs," indicating this part is in mature or end-of-life phase. This substitute is suitable only for replacement or maintenance of existing designs and is not recommended for new product development. Current inventory is 16,736 units.

For new designs, RC1210FR-074K75L or CRCW12104K75FKEA are preferred. For existing designs or maintenance applications, ERJ-14NF4751U remains functionally compatible.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher power rating than the original RC3225F4751CS?

A: Yes. The RC3225F4751CS is rated for 0.333W (1/3W). All listed substitutes are rated for 0.5W (1/2W), which exceeds the original specification. A higher power rating does not compromise circuit function and provides additional thermal margin. The component will operate safely within the original design parameters.

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

A: Yes. All substitute parts use the 1210 (3225 Metric) package format with identical footprints and land patterns. Physical dimensions vary slightly between manufacturers but remain within the 1210 package specification, ensuring PCB compatibility.

Q: What is the difference between the YAGEO and Vishay Dale substitutes?

A: RC1210FR-074K75L (YAGEO) is a standard industrial-grade thick film resistor. CRCW12104K75FKEA (Vishay Dale) carries AEC-Q200 automotive qualification, indicating enhanced reliability testing and suitability for automotive applications. Both have identical electrical specifications and 0.5W power ratings.

Q: Why is the Panasonic ERJ-14NF4751U marked "Not For New Designs"?

A: This designation indicates the part is in mature or end-of-life phase. Panasonic continues to supply existing inventory but does not recommend this part for new product development. Use this part only for replacement or maintenance of existing designs where the part number is already established.

Q: Do all substitutes maintain the same temperature coefficient and operating range?

A: Yes. All substitute parts maintain ±100ppm/°C temperature coefficient and -55°C to 155°C operating temperature range, identical to the original RC3225F4751CS.

Q: Are all parts RoHS3 compliant?

A: Yes. The RC3225F4751CS and all listed substitutes are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.