RC3225F4750CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4750CS is a 475 Ohm ±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 676 pieces currently in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the same package class. Alternative sources become necessary for supply chain continuity, extended lead time mitigation, or when specific certifications such as AEC-Q200 automotive qualification are required for application requirements.

Substiute Parts

RC3225F4750CS

Samsung Electro-MechanicsIn Stock: 697RC3225F4750CS Datasheet

Current PartRFQ

CRCW1210475RFKEA

Vishay DaleIn Stock: 5330CRCW1210475RFKEA Datasheet

SimilarRFQ

ERJ-14NF4750U

Panasonic Electronic ComponentsIn Stock: 8173ERJ-14NF4750U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4750CS is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 475 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Secondary Consideration:

• Power Rating: The main part is rated at 0.333W (1/3W). Substitute parts with equal or higher power ratings (0.5W or greater) are electrically compatible and mechanically interchangeable within the same 1210 package footprint.

The identified substitute parts meet all primary criteria. Differences in power rating represent a design margin increase rather than a compatibility limitation, as higher-rated components function identically in circuits designed for lower power dissipation.

Parameter Comparison

Engineering Selection Recommendations

CRCW1210475RFKEA (Vishay Dale) is the primary recommended substitute for the RC3225F4750CS. This part maintains Active product status, carries AEC-Q200 automotive qualification, and is available in higher volume (5271 pieces in stock). The increased power rating of 0.5W provides additional design margin without affecting electrical performance or mechanical compatibility. Tape & Reel packaging is suitable for automated assembly processes.

ERJ-14NF4750U (Panasonic Electronic Components) is an alternative substitute with equivalent electrical specifications and AEC-Q200 automotive qualification. However, this part carries a "Not For New Designs" product status designation. Selection of this part is appropriate only for legacy system maintenance, repair operations, or when existing design documentation explicitly specifies this manufacturer part number. New design implementations should prioritize the CRCW1210475RFKEA option.

Both substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8533.21.0030) to the main part, ensuring regulatory and trade compliance equivalence.

Frequently Asked Questions (FAQ)

Q: Can CRCW1210475RFKEA replace RC3225F4750CS in existing designs?

A: Yes. Both parts share identical resistance (475 Ohms), tolerance (±1%), package format (1210), composition (thick film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The CRCW1210475RFKEA has a higher power rating (0.5W versus 0.333W), which provides additional thermal margin and is fully compatible with circuits designed for the lower-rated component.

Q: What is the difference between the main part and substitute parts in terms of power rating?

A: The RC3225F4750CS is rated for 0.333W (1/3W) power dissipation. Both substitute parts (CRCW1210475RFKEA and ERJ-14NF4750U) are rated for 0.5W (1/2W). A higher power rating indicates greater thermal capacity and does not create incompatibility. The component will function identically in applications where power dissipation remains below the original 0.333W specification.

Q: Why is ERJ-14NF4750U marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that Panasonic has designated this part for legacy support only. While the part remains electrically and mechanically equivalent, new product development should utilize CRCW1210475RFKEA or the original RC3225F4750CS to ensure long-term supply chain stability and manufacturer support.

Q: Are the packaging formats interchangeable?

A: The RC3225F4750CS is supplied in bulk packaging, while CRCW1210475RFKEA and ERJ-14NF4750U are supplied in Tape & Reel (TR) format. Both formats contain identical components; the difference is in presentation for assembly processes. Tape & Reel format is optimized for automated pick-and-place equipment, while bulk packaging is suitable for manual assembly or alternative handling methods.

Q: Do all three parts meet automotive qualification standards?

A: The RC3225F4750CS does not specify automotive qualification. Both CRCW1210475RFKEA and ERJ-14NF4750U carry AEC-Q200 automotive qualification, which indicates compliance with automotive industry reliability and quality standards. If automotive qualification is a design requirement, either substitute part is appropriate; if not required, all three parts are functionally equivalent.

Q: What is the significance of Moisture Sensitivity Level 1?

A: Moisture Sensitivity Level (MSL) 1 indicates unlimited shelf life without moisture-related degradation concerns. All three parts share this classification, meaning they do not require special dry-pack storage or baking procedures prior to assembly, and they maintain consistent performance characteristics across standard storage conditions.