RC3225F4640CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4640CS is a 464 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 and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with 969 units available in inventory.

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 automotive qualification levels.

Substiute Parts

RC3225F4640CS

Samsung Electro-MechanicsIn Stock: 1025RC3225F4640CS Datasheet

Current PartRFQ

CRCW1210464RFKEA

Vishay DaleIn Stock: 888CRCW1210464RFKEA Datasheet

SimilarRFQ

ERJ-14NF4640U

Panasonic Electronic ComponentsIn Stock: 2340ERJ-14NF4640U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4640CS is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 464 Ohms
• Tolerance: ±1%
• Package format: 1210 (3225 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Number of terminations: 2
• RoHS3 compliance

Allowable Variation Parameters:

• Power rating: Substitute parts may have equal or higher power ratings (0.333W or greater)
• Physical dimensions: Minor variations within package specification tolerance
• Packaging format: Original tape & reel or alternative packaging acceptable
• Automotive qualification: AEC-Q200 certification is an enhancement, not a requirement

The two substitute parts identified (CRCW1210464RFKEA and ERJ-14NF4640U) meet all mandatory parameters while offering higher power ratings (0.5W / 1/2W) and automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CRCW1210464RFKEA (Vishay Dale)

The CRCW1210464RFKEA is the preferred substitute for new designs and ongoing production. This part maintains active product status, meets all mandatory electrical and mechanical parameters, and provides enhanced power rating capability (0.5W versus 0.333W). AEC-Q200 automotive qualification provides additional reliability assurance for applications requiring automotive-grade components. RoHS3 compliance and MSL 1 rating ensure compatibility with modern manufacturing processes.

Secondary Selection: ERJ-14NF4640U (Panasonic Electronic Components)

The ERJ-14NF4640U is available in high inventory quantity (2307 units) and meets all electrical specifications. However, this part carries a "Not For New Designs" product status designation. This part is suitable for legacy system maintenance, repair operations, or applications where existing design validation has already been completed. The higher inventory level may provide supply chain advantages for immediate fulfillment requirements.

Selection Criteria Summary:

• For new designs: CRCW1210464RFKEA
• For legacy or repair applications: ERJ-14NF4640U
• Both parts are electrically and mechanically interchangeable with RC3225F4640CS
• Power rating increase (0.333W to 0.5W) provides design margin without circuit modification

Frequently Asked Questions (FAQ)

Q: Can CRCW1210464RFKEA directly replace RC3225F4640CS in existing circuits?

A: Yes. Both parts share identical resistance value (464 Ohms), tolerance (±1%), package format (1210), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). The higher power rating of CRCW1210464RFKEA (0.5W versus 0.333W) is a non-limiting enhancement that does not require circuit redesign.

Q: What is the significance of the "Not For New Designs" status on ERJ-14NF4640U?

A: This designation indicates that Panasonic has discontinued active development and recommends against incorporating this part into new product designs. The part remains available for existing applications and repair operations. For new designs, CRCW1210464RFKEA is the recommended choice.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within package specification tolerance. RC3225F4640CS has a maximum seated height of 0.026" (0.66mm), while both substitute parts have maximum seated heights of 0.024" (0.60mm) and 0.028" (0.70mm) respectively. These variations remain within the 1210 package specification and do not affect PCB layout or assembly compatibility.

Q: Do all three parts require the same moisture handling procedures?

A: Yes. All three parts carry MSL (Moisture Sensitivity Level) rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard component storage and handling practices apply without special moisture control requirements.

Q: What is the difference between the packaging formats listed?

A: RC3225F4640CS is supplied in standard packaging format. CRCW1210464RFKEA and ERJ-14NF4640U are supplied in Tape & Reel (TR) format, which is standard for automated assembly operations. Both packaging formats contain identical components; the difference is in the delivery and handling method.

Q: Are all parts ROHS3 compliant?

A: Yes. RC3225F4640CS, CRCW1210464RFKEA, and ERJ-14NF4640U are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.