RC3225F7872CS Equivalent & Substitute Parts Reference

Part Overview

The RC3225F7872CS is a 78.7 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.333W (1/3W) power dissipation in a 1210 (3225 Metric) surface mount package. This component is classified as Active product status and is RoHS3 compliant with MSL 1 moisture sensitivity rating.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, package format, and operating temperature range. The primary substitute listed is the ERJ-14NF7872U from Panasonic Electronic Components, which shares identical resistance, tolerance, and package dimensions while offering higher power rating capability.

Substiute Parts

RC3225F7872CS

Samsung Electro-MechanicsIn Stock: 937RC3225F7872CS Datasheet

Current PartRFQ

ERJ-14NF7872U

Panasonic Electronic ComponentsIn Stock: 4455ERJ-14NF7872U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC3225F7872CS is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Resistance value: 78.7 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Package format: 1210 (3225 Metric) (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match or wider range acceptable)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Flexible Parameters (Higher Values Acceptable):

• Power rating: Substitute parts may have equal or higher power dissipation ratings without affecting circuit compatibility, provided all other parameters remain constant.

The ERJ-14NF7872U meets all critical matching parameters and provides a higher power rating (0.5W vs. 0.333W), making it a valid electrical and mechanical substitute.

Parameter Comparison

Engineering Selection Recommendations

RC3225F7872CS (Samsung Electro-Mechanics):

• Product Status: Active
• RoHS Compliance: RoHS3 Compliant
• Recommended for new designs requiring RoHS3 compliance and active product support
• 878 units in stock

ERJ-14NF7872U (Panasonic Electronic Components):

• Product Status: Not For New Designs
• RoHS Compliance: RoHS non-compliant
• Automotive AEC-Q200 rated for applications requiring automotive qualification
• Higher power rating (0.5W) provides thermal margin in power-constrained applications
• 4372 units in stock
• Suitable for legacy design maintenance or automotive applications where AEC-Q200 qualification is required

Selection between these parts should be based on compliance requirements (RoHS3 vs. non-compliant), product lifecycle status (Active vs. Not For New Designs), and application-specific certifications (automotive AEC-Q200 qualification).

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF7872U replace RC3225F7872CS in all applications?

A: Electrical and mechanical compatibility is confirmed. However, the ERJ-14NF7872U is marked "Not For New Designs" and is RoHS non-compliant, while the RC3225F7872CS is Active status and RoHS3 compliant. Substitution suitability depends on your design phase and regulatory requirements.

Q: What is the significance of the higher power rating on the ERJ-14NF7872U?

A: The ERJ-14NF7872U is rated at 0.5W compared to the RC3225F7872CS at 0.333W. Both parts will function identically in circuits designed for 0.333W dissipation. The higher rating on the substitute provides additional thermal margin and may extend component life in power-limited applications.

Q: Are the physical dimensions interchangeable?

A: Yes. Both parts use the 1210 (3225 Metric) package format. Dimensional variations (length 3.20mm, width 2.55mm vs. 2.50mm, height 0.66mm vs. 0.70mm) are within standard PCB footprint tolerances and are mechanically compatible.

Q: What does "Not For New Designs" mean for the ERJ-14NF7872U?

A: This designation indicates that Panasonic is not recommending this part for new product development. It may be retained for legacy system support or maintenance. For new designs, the RC3225F7872CS (Active status) is the appropriate choice.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The RC3225F7872CS is RoHS3 compliant, while the ERJ-14NF7872U is RoHS non-compliant. If your application or market requires RoHS3 certification, the RC3225F7872CS must be used.

Q: What does MSL 1 (Unlimited) moisture sensitivity mean?

A: Both parts have MSL 1 rating, indicating unlimited shelf life without moisture bake-out requirements. These components can be stored and handled under standard conditions without special moisture control procedures.