RC3225F8251CS Equivalent & Substitute Parts

Part Overview

The RC3225F8251CS is an 8.25 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 is ROHS3 compliant with MSL 1 rating.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit higher power ratings or alternative certifications such as automotive qualification.

Substiute Parts

RC3225F8251CS

Samsung Electro-MechanicsIn Stock: 1009RC3225F8251CS Datasheet

Current PartRFQ

ERJ-14NF8251U

Panasonic Electronic ComponentsIn Stock: 10017ERJ-14NF8251U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC3225F8251CS is determined by the following mandatory parameters:

Electrical Parameters (Non-negotiable):

• Resistance value must equal 8.25 kOhms
• Tolerance must be ±1% or tighter
• Power rating must be equal to or greater than 0.333W
• Temperature coefficient must be ±100ppm/°C or better
• Operating temperature range must encompass -55°C to 155°C

Mechanical Parameters (Non-negotiable):

• Package format must be 1210 (3225 Metric)
• Number of terminations must be 2
• Physical dimensions must be compatible with 1210 footprint

Compliance Parameters (Required):

• RoHS3 compliance mandatory
• MSL rating must be 1 or equivalent
• REACH unaffected status required

The ERJ-14NF8251U from Panasonic Electronic Components qualifies as a substitute because it matches all critical electrical parameters, maintains the identical 1210 package format, and exceeds the power rating requirement at 0.5W (1/2W). Both components share identical resistance, tolerance, temperature coefficient, and operating temperature specifications. The substitute provides higher power dissipation capability, making it suitable for applications where the main part cannot be sourced.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC3225F8251CS): The Samsung Electro-Mechanics RC3225F8251CS maintains Active product status and represents the preferred selection when available. This component is optimized for general industrial and commercial applications with moisture-resistant thick film construction.

Substitute Component (ERJ-14NF8251U): The Panasonic ERJ-14NF8251U is qualified as a direct substitute based on electrical and mechanical parameter equivalence. This component carries AEC-Q200 automotive qualification and exceeds the power rating of the primary part at 0.5W versus 0.333W. The substitute is suitable for applications requiring automotive-grade reliability or where higher power dissipation margin is beneficial.

Product Status Consideration: The ERJ-14NF8251U carries "Not For New Designs" status, indicating Panasonic has transitioned this model. However, it remains functionally equivalent and available in inventory (9940 Pcs). Selection of this substitute should be evaluated against long-term supply availability and design lifecycle requirements.

Compliance Verification: Both components satisfy ROHS3 compliance, REACH unaffected status, and MSL 1 moisture sensitivity requirements. No additional compliance barriers exist for substitution.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-14NF8251U replace the RC3225F8251CS in existing designs?

A: Yes. The ERJ-14NF8251U is electrically and mechanically equivalent. Both components share identical resistance (8.25 kOhms), tolerance (±1%), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and 1210 package format. The substitute provides higher power rating (0.5W vs. 0.333W), which is compatible with applications designed for the primary part.

Q: What are the physical compatibility considerations?

A: Both components use the 1210 (3225 Metric) package with compatible footprints. The RC3225F8251CS measures 0.126" L x 0.100" W with 0.026" maximum seated height. The ERJ-14NF8251U measures 0.126" L x 0.098" W with 0.028" maximum seated height. These dimensional variations are within standard PCB design tolerances and do not affect interchangeability.

Q: Are there any compliance differences between the two parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. The ERJ-14NF8251U includes additional AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Q: What does "Not For New Designs" status mean for the ERJ-14NF8251U?

A: This status indicates Panasonic has discontinued active development and marketing of this model line. However, the component remains available in inventory and is functionally equivalent. New designs may use this substitute when supply of the primary part is constrained, with awareness that future availability may be limited.

Q: How do the power ratings affect substitution?

A: The ERJ-14NF8251U (0.5W) exceeds the RC3225F8251CS (0.333W) power rating. This means the substitute can safely handle equal or greater power dissipation without thermal stress. Applications designed for 0.333W operation will function correctly with the higher-rated substitute.

Q: Are packaging formats interchangeable?

A: Yes. Both components use identical 1210 (3225 Metric) package format with 2 terminations. Standard PCB footprints designed for the RC3225F8251CS will accommodate the ERJ-14NF8251U without modification.