RC3225F1621CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F1621CS is a 1.62 kOhms ±1% 0.333W (1/3W) chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 963 pieces in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across alternative manufacturers while accommodating packaging and power rating variations.

Substiute Parts

RC3225F1621CS

Samsung Electro-MechanicsIn Stock: 996RC3225F1621CS Datasheet

Current PartRFQ

CRCW12101K62FKEA

Vishay DaleIn Stock: 5331CRCW12101K62FKEA Datasheet

SimilarRFQ

ERJ-14NF1621U

Panasonic Electronic ComponentsIn Stock: 5378ERJ-14NF1621U Datasheet

SimilarRFQ

RMCF1210FT1K62

Stackpole Electronics IncIn Stock: 1074RMCF1210FT1K62 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory criteria:

Core Electrical Parameters (Must Match):

• Resistance value: 1.62 kOhms
• Tolerance: ±1%
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package / Case: 1210 (3225 Metric)
• Number of terminations: 2
• Composition: Thick Film

Allowable Variations:

• Power rating: Substitute parts may have equal or higher power ratings (0.5W/1/2W acceptable for 0.333W/1/3W applications)
• Physical dimensions: Minor variations within supplier device package specifications are acceptable
• Packaging format: Tape & Reel (TR) acceptable for original bulk packaging
• Features: Additional certifications (AEC-Q200) do not disqualify substitution

Non-Substitutable Criteria:

• Resistance value deviation
• Tolerance deviation
• Package size deviation
• Operating temperature range reduction
• Composition type change

Three substitute parts meet these criteria across manufacturers Vishay Dale, Panasonic Electronic Components, and Stackpole Electronics Inc.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status, Standard Application): CRCW12101K62FKEA (Vishay Dale) and RMCF1210FT1K62 (Stackpole Electronics Inc) are both active production parts with AEC-Q200 automotive qualification. Both provide 0.5W power rating, exceeding the original 0.333W specification, and maintain all core electrical and mechanical parameters. Selection between these two depends on supplier availability and procurement lead times.

Secondary Selection (Legacy Applications): ERJ-14NF1621U (Panasonic Electronic Components) carries "Not For New Designs" status. This part is electrically and mechanically equivalent but should be reserved for legacy system maintenance or replacement scenarios where design continuity is required. New designs should not incorporate this part number.

Compliance Considerations: All four parts maintain ROHS3 compliance, MSL 1 rating, and identical operating temperature ranges. The substitute parts' higher power ratings (0.5W vs. 0.333W) provide thermal margin without affecting circuit performance in applications designed for the original 0.333W component.

Frequently Asked Questions (FAQ)

Q: Can CRCW12101K62FKEA replace RC3225F1621CS in existing designs? A: Yes. Both parts share identical resistance (1.62 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating range (-55°C ~ 155°C), and 1210 package. The CRCW12101K62FKEA provides higher power rating (0.5W vs. 0.333W), which is acceptable for direct substitution.

Q: What is the difference between the 0.333W and 0.5W power ratings? A: The substitute parts have higher power dissipation capability. In applications where the original 0.333W rating was adequate, the 0.5W rating provides additional thermal margin without changing electrical behavior. No circuit redesign is required.

Q: Why is ERJ-14NF1621U marked "Not For New Designs"? A: This designation indicates Panasonic has transitioned this part to legacy status. While electrically and mechanically equivalent, it should not be selected for new product development. Use CRCW12101K62FKEA or RMCF1210FT1K62 for new designs.

Q: Are all substitute parts AEC-Q200 qualified? A: Yes. CRCW12101K62FKEA, ERJ-14NF1621U, and RMCF1210FT1K62 all carry AEC-Q200 automotive qualification. The original RC3225F1621CS does not specify this rating. AEC-Q200 qualification is an additional feature that does not prevent substitution.

Q: Can physical dimensions vary between these parts? A: Minor variations exist within the 1210 package specification. Length and width are standardized at 3.20mm x 2.50-2.55mm. Height varies slightly (0.60mm to 0.70mm maximum seated height). These variations are within normal PCB assembly tolerances and do not affect substitutability.

Q: What packaging formats are available? A: The original RC3225F1621CS is specified with bulk packaging. Substitute parts CRCW12101K62FKEA, ERJ-14NF1621U, and RMCF1210FT1K62 are supplied in Tape & Reel (TR) format. TR packaging is standard for automated assembly and is compatible with standard pick-and-place equipment.

Q: Are all parts ROHS3 compliant? A: Yes. RC3225F1621CS, CRCW12101K62FKEA, ERJ-14NF1621U, and RMCF1210FT1K62 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.