RC3225F1871CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F1871CS is a 1.87 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 and carries ROHS3 compliance with MSL Level 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, temperature coefficient) and mechanical compatibility (package format, termination count, physical dimensions). Substitute parts in this reference maintain the same 1.87 kOhms resistance and ±1% tolerance while offering alternative power ratings, manufacturers, and enhanced certifications such as AEC-Q200 automotive qualification.

Substiute Parts

RC3225F1871CS

Samsung Electro-MechanicsIn Stock: 1061RC3225F1871CS Datasheet

Current PartRFQ

AC1210FR-071K87L

YAGEOIn Stock: 3249AC1210FR-071K87L Datasheet

UpgradeRFQ

CRCW12101K87FKEA

Vishay DaleIn Stock: 15203CRCW12101K87FKEA Datasheet

SimilarRFQ

ERJ-14NF1871U

Panasonic Electronic ComponentsIn Stock: 13945ERJ-14NF1871U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1871CS is determined by strict adherence to the following criteria:

Mandatory Matching Parameters:

• Resistance Value: 1.87 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package Format: 1210 (3225 Metric) (exact match required)
• Number of Terminations: 2 (exact match required)
• Temperature Coefficient: ±100ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (exact match required)
• Composition: Thick Film (exact match required)

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power ratings (0.5W/1/2W acceptable as upgrade)
• Manufacturer: Different manufacturers permitted
• Packaging Format: Tape & Reel (TR) acceptable for substitute parts
• Additional Certifications: AEC-Q200 automotive qualification permitted as enhancement
• Physical Dimensions: Minor variations within supplier device package specifications permitted

All identified substitute parts maintain identical electrical performance characteristics while offering enhanced power dissipation capability or automotive-grade certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Upgrade Path): AC1210FR-071K87L (YAGEO) is the recommended upgrade substitute. This part maintains all mandatory electrical parameters while providing increased power rating (0.5W vs. 0.333W), AEC-Q200 automotive qualification, and moisture-resistant construction. Product status is Active, ensuring continued availability and support for new designs.

Secondary Substitute (High Inventory): CRCW12101K87FKEA (Vishay Dale) offers equivalent electrical specifications with 0.5W power rating and AEC-Q200 certification. This part maintains Active product status with the highest inventory availability (15,124 pieces). Selection is appropriate for applications requiring automotive-grade reliability.

Legacy Substitute (Obsolescence Consideration): ERJ-14NF1871U (Panasonic Electronic Components) carries "Not For New Designs" product status. While electrically compatible with matching resistance, tolerance, and temperature characteristics, this part is not recommended for new circuit designs due to discontinued development status. Existing inventory of 13,899 pieces remains available for legacy system support only.

All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and identical operating temperature range (-55°C to 155°C), ensuring direct functional compatibility within specified environmental conditions.

Frequently Asked Questions (FAQ)

Q: Can AC1210FR-071K87L replace RC3225F1871CS in existing designs? A: Yes. AC1210FR-071K87L maintains identical resistance (1.87 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), and operating range (-55°C to 155°C). The increased power rating (0.5W vs. 0.333W) provides enhanced thermal margin. Physical dimensions are compatible within 1210 package specifications.

Q: What is the difference between the 0.333W and 0.5W power ratings? A: Power rating indicates maximum continuous power dissipation capability. The 0.5W substitute parts can safely dissipate higher power levels without exceeding temperature limits. In applications where the original 0.333W rating is sufficient, the 0.5W substitute provides additional thermal headroom and reliability margin.

Q: Are all substitute parts suitable for automotive applications? A: AC1210FR-071K87L and CRCW12101K87FKEA carry AEC-Q200 automotive qualification. RC3225F1871CS and ERJ-14NF1871U do not have this certification. For automotive applications, AC1210FR-071K87L or CRCW12101K87FKEA are required.

Q: Why is ERJ-14NF1871U marked "Not For New Designs"? A: This designation indicates the part is in end-of-life status with no new development support. Existing inventory remains available for legacy system maintenance and repair. New circuit designs should specify AC1210FR-071K87L or CRCW12101K87FKEA instead.

Q: Are the physical dimensions identical across all parts? A: Physical dimensions vary slightly within the 1210 package specification. RC3225F1871CS measures 3.20mm × 2.55mm with 0.66mm height. AC1210FR-071K87L measures 3.10mm × 2.60mm with 0.60mm height. CRCW12101K87FKEA measures 3.20mm × 2.50mm with 0.60mm height. ERJ-14NF1871U measures 3.20mm × 2.50mm with 0.70mm height. All dimensions remain within 1210 package tolerance and are mechanically compatible with standard PCB layouts.

Q: Do all parts have the same moisture sensitivity rating? A: Yes. All parts carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processing.

Q: What is the inventory status for each part? A: RC3225F1871CS: 980 pieces. AC1210FR-071K87L: 3,149 pieces. CRCW12101K87FKEA: 15,124 pieces. ERJ-14NF1871U: 13,899 pieces. CRCW12101K87FKEA offers the highest availability for immediate procurement.