RC3225F1740CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F1740CS is a 174 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics in the 1210 (3225 Metric) package format with 0.333W (1/3W) power rating. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). The part operates across the temperature range of -55°C to 155°C with a temperature coefficient of ±100ppm/°C.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, temperature coefficient, operating temperature range) and mechanical compatibility (package format, termination count, physical dimensions). Substitute parts in this reference maintain identical or superior power ratings while preserving the 1210 package footprint and core electrical characteristics.

Substiute Parts

RC3225F1740CS

Samsung Electro-MechanicsIn Stock: 1161RC3225F1740CS Datasheet

Current PartRFQ

ERJ-14NF1740U

Panasonic Electronic ComponentsIn Stock: 15662ERJ-14NF1740U Datasheet

SimilarRFQ

RMCF1210FT174R

Stackpole Electronics IncIn Stock: 8428RMCF1210FT174R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F1740CS is determined by the following mandatory parameters:

Electrical Compatibility Criteria:

• Resistance value: 174 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C minimum (equal or wider range acceptable)

Mechanical Compatibility Criteria:

• Package format: 1210 (3225 Metric) (exact match required)
• Number of terminations: 2 (exact match required)
• Composition: Thick Film (exact match required)

Regulatory & Environmental Criteria:

• RoHS3 compliance (required)
• MSL rating: 1 or better (equal or superior acceptable)

Power Rating Consideration: Substitute parts with equal or higher power ratings (0.333W or greater) are functionally compatible. The RC3225F1740CS specifies 0.333W (1/3W); substitute parts rated at 0.5W (1/2W) or higher provide equivalent or superior performance in the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (Active Status): The RC3225F1740CS remains the primary choice for new designs, maintaining Active product status with full manufacturer support and availability (1069 Pcs in stock). This part meets all electrical and mechanical requirements without compromise.

Secondary Selection (Active Status with Enhanced Rating): The RMCF1210FT174R from Stackpole Electronics Inc is an Active product with identical electrical specifications and superior power rating (0.5W vs. 0.333W). This part includes AEC-Q200 automotive qualification, providing enhanced reliability margin. Physical dimensions are within acceptable tolerance (height 0.028" vs. 0.026" for main part). Inventory availability is substantial (8367 Pcs in stock).

Tertiary Selection (Not For New Designs): The ERJ-14NF1740U from Panasonic Electronic Components is classified as "Not For New Designs" and should be used only for legacy system maintenance or repair applications. While electrically and mechanically compatible with identical specifications and AEC-Q200 rating, the discontinued design status limits its suitability for new product development. Inventory is available (15619 Pcs in stock).

Compliance Verification: All three parts maintain ROHS3 compliance, unlimited MSL rating (1), and identical operating temperature ranges (-55°C to 155°C). No regulatory or environmental barriers exist to substitution within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF1740U replace RC3225F1740CS in new designs?

A: ERJ-14NF1740U is electrically and mechanically compatible with RC3225F1740CS. However, ERJ-14NF1740U carries "Not For New Designs" status. For new product development, RMCF1210FT174R (Active status) or RC3225F1740CS (Active status) are preferred selections.

Q: What is the difference in power rating between the main part and substitutes?

A: RC3225F1740CS is rated at 0.333W (1/3W). Both ERJ-14NF1740U and RMCF1210FT174R are rated at 0.5W (1/2W). The higher power rating of substitute parts provides additional thermal margin in the same 1210 package footprint. This is a compatible upgrade with no negative impact on circuit performance.

Q: Are there physical dimension differences between these parts?

A: Minor dimensional variations exist. RC3225F1740CS measures 0.126" L x 0.100" W with 0.026" maximum seated height. ERJ-14NF1740U and RMCF1210FT174R measure 0.126" L x 0.098" W with 0.028" maximum seated height. These differences are within standard PCB layout tolerances for 1210 package components and do not affect footprint compatibility.

Q: Do all substitute parts have automotive qualification?

A: RC3225F1740CS does not specify automotive qualification. ERJ-14NF1740U and RMCF1210FT174R both carry AEC-Q200 automotive qualification. If automotive-grade components are required, RMCF1210FT174R (Active status) is the recommended selection.

Q: What is the MSL rating significance for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. These components can be stored indefinitely without desiccant packaging and do not require special handling or baking procedures prior to assembly.

Q: Are all parts RoHS3 compliant?

A: Yes. RC3225F1740CS, ERJ-14NF1740U, and RMCF1210FT174R all maintain ROHS3 compliance status, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.