RC3225F4993CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F4993CS is a 499 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with 0.333W power rating. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the 1210 package family, allowing for design flexibility, supply chain optimization, or performance enhancement through higher power ratings.

Substiute Parts

RC3225F4993CS

Samsung Electro-MechanicsIn Stock: 1014RC3225F4993CS Datasheet

Current PartRFQ

AC1210FR-07499KL

YAGEOIn Stock: 2614AC1210FR-07499KL Datasheet

UpgradeRFQ

RC1210FR-07499KL

YAGEOIn Stock: 6177RC1210FR-07499KL Datasheet

UpgradeRFQ

CRCW1210499KFKEA

Vishay DaleIn Stock: 8517CRCW1210499KFKEA Datasheet

SimilarRFQ

ERJ-14NF4993U

Panasonic Electronic ComponentsIn Stock: 21041ERJ-14NF4993U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F4993CS is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Resistance Value: 499 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)
• RoHS Status: ROHS3 Compliant (minimum requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (minimum requirement)

Allowable Variation Parameters:

• Power Rating: Substitutes with equal or higher power ratings (0.333W or greater) are acceptable
• Packaging Format: Tape & Reel (TR) is acceptable for the same 1210 package
• Manufacturer: Different manufacturers permitted if all electrical and mechanical parameters match
• Certifications: Additional certifications (such as AEC-Q200 automotive qualification) do not disqualify substitution

The four identified substitute parts meet all mandatory parameters while offering either equivalent or enhanced power ratings (0.5W / 1/2W), providing design margin and supply chain alternatives.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Product Status):

AC1210FR-07499KL and RC1210FR-07499KL are the preferred substitutes for new designs. Both parts maintain all mandatory electrical and mechanical parameters while offering 0.5W power rating (50% higher than the main part). AC1210FR-07499KL includes AEC-Q200 automotive qualification, suitable for applications requiring automotive-grade reliability. RC1210FR-07499KL provides equivalent performance without automotive certification. Both are manufactured by YAGEO with Active product status and high inventory availability.

Secondary Substitute (Active Product Status):

CRCW1210499KFKEA manufactured by Vishay Dale is an Active product with AEC-Q200 automotive qualification and 0.5W power rating. This part is suitable for designs requiring automotive-grade components with enhanced reliability margins.

Legacy Substitute (Not For New Designs):

ERJ-14NF4993U manufactured by Panasonic Electronic Components carries "Not For New Designs" product status. This part meets all electrical and mechanical specifications with AEC-Q200 qualification but should not be selected for new design implementations. Use only for legacy system maintenance or replacement applications where the original part number is specified.

Frequently Asked Questions (FAQ)

Q: Can I substitute RC3225F4993CS with a higher power-rated 1210 resistor?

A: Yes. Substitutes with equal or higher power ratings (0.5W or greater) are acceptable provided all other parameters remain identical: 499 kOhms resistance, ±1% tolerance, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and 1210 package format. Higher power ratings provide additional thermal margin without affecting electrical performance.

Q: What is the difference between AC1210FR-07499KL and RC1210FR-07499KL?

A: Both parts are manufactured by YAGEO with identical electrical specifications (499 kOhms, ±1%, 0.5W, 1210 package). The primary difference is that AC1210FR-07499KL includes AEC-Q200 automotive qualification and moisture-resistant features, while RC1210FR-07499KL provides standard thick film construction. Select AC1210FR-07499KL for automotive or high-reliability applications; select RC1210FR-07499KL for general industrial applications.

Q: Why is ERJ-14NF4993U marked "Not For New Designs"?

A: ERJ-14NF4993U carries "Not For New Designs" product status from Panasonic Electronic Components, indicating the manufacturer is transitioning this part to obsolescence. While the part meets all electrical and mechanical specifications, it should only be used for legacy system maintenance or replacement. For new designs, select AC1210FR-07499KL, RC1210FR-07499KL, or CRCW1210499KFKEA.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (AC1210FR-07499KL, RC1210FR-07499KL, CRCW1210499KFKEA, and ERJ-14NF4993U) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the main part RC3225F4993CS.

Q: Can I use CRCW1210499KFKEA as a direct replacement in existing assemblies?

A: Yes. CRCW1210499KFKEA is mechanically and electrically compatible with RC3225F4993CS. Both use the 1210 (3225 Metric) package with identical footprint requirements. The Vishay Dale part offers 0.5W power rating and AEC-Q200 automotive qualification, providing enhanced performance margins for existing designs.

Q: What is the inventory status of substitute parts?

A: AC1210FR-07499KL: 2,521 pcs in stock; RC1210FR-07499KL: 6,132 pcs in stock; CRCW1210499KFKEA: 8,441 pcs in stock; ERJ-14NF4993U: 21,012 pcs in stock. All parts are available as new original components in Tape & Reel packaging.