RC5025F1870CS Equivalent & Substitute Parts

Part Overview

The RC5025F1870CS is a 187 Ohm ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.667W (2/3W) in a 2010 (5025 Metric) package. This component is classified as Active product status with 989 pieces currently in stock. The part features moisture-resistant construction suitable for general industrial applications across an operating temperature range of -55°C to 155°C.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative manufacturers meeting equivalent electrical and mechanical specifications. The RC5025F1870CS can be substituted with components sharing identical resistance value, tolerance, package dimensions, and compatible power ratings within the specified operating parameters.

Substiute Parts

RC5025F1870CS

Samsung Electro-MechanicsIn Stock: 1050RC5025F1870CS Datasheet

Current PartRFQ

ERJ-12SF1870U

Panasonic Electronic ComponentsIn Stock: 11103ERJ-12SF1870U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC5025F1870CS is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Resistance value: 187 Ohms
• Tolerance: ±1%
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C minimum

Mechanical Parameters (Must Match):

• Package designation: 2010 (5025 Metric)
• Physical dimensions: 0.197" L x 0.098" W (5.00mm x 2.50mm)
• Composition: Thick Film

Power Rating Consideration: Substitute parts must have power ratings equal to or greater than 0.667W. Parts with higher power ratings (such as 0.75W) are acceptable as they provide equivalent or superior thermal performance within the same package footprint.

Compliance Parameters:

• RoHS3 compliance required
• Moisture Sensitivity Level 1 (Unlimited) acceptable
• REACH Unaffected status acceptable

The ERJ-12SF1870U from Panasonic Electronic Components meets all substitution criteria with identical electrical specifications and package dimensions, with a higher power rating of 0.75W.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (RC5025F1870CS): The RC5025F1870CS maintains Active product status and is recommended for new designs when supply availability permits. This component is suitable for applications requiring moisture-resistant thick film construction with standard industrial temperature range coverage.

Substitute Component (ERJ-12SF1870U): The ERJ-12SF1870U from Panasonic Electronic Components is a direct functional equivalent with the following considerations:

• Product Status: Classified as Not For New Designs. This designation indicates the part is available for existing design support and replacement applications but should not be selected for new product development.
• Compliance: Meets ROHS3 and REACH requirements equivalent to the primary part.
• Automotive Qualification: Features AEC-Q200 automotive qualification, providing additional reliability assurance beyond standard industrial specifications.
• Power Rating Advantage: The 0.75W rating provides 12.5% higher power dissipation capability within identical package dimensions, offering thermal margin improvement.
• Inventory Availability: 11,083 pieces in stock, providing substantial supply availability for replacement and retrofit applications.

Selection of the ERJ-12SF1870U is appropriate for applications where the primary part experiences supply discontinuation or extended lead times, provided the design does not require new product qualification.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-12SF1870U directly replace the RC5025F1870CS in existing designs?

A: Yes. Both components share identical electrical specifications (187 Ohms ±1%, ±100ppm/°C temperature coefficient), identical package dimensions (2010/5025 Metric), and compatible operating temperature ranges (-55°C ~ 155°C). The ERJ-12SF1870U's higher power rating (0.75W vs. 0.667W) is compatible with applications designed for the primary part.

Q: What is the significance of the "Not For New Designs" status on the ERJ-12SF1870U?

A: This designation indicates the part is in mature or declining production phase. Panasonic continues to supply the component for existing applications and replacements but does not recommend it for new product development. For new designs, the RC5025F1870CS or equivalent active-status alternatives should be prioritized.

Q: Are there dimensional compatibility concerns between these two parts?

A: Dimensional compatibility is confirmed. Both parts use the 2010 (5025 Metric) package with identical length and width (0.197" x 0.098" / 5.00mm x 2.50mm). Maximum seated height differs by 0.002" (0.04mm), which is negligible for standard PCB assembly and does not affect interchangeability.

Q: Does the higher power rating of the ERJ-12SF1870U affect circuit performance?

A: No. Power rating represents maximum dissipation capability. A component rated for higher power dissipation operates identically to a lower-rated component in the same circuit. The ERJ-12SF1870U provides additional thermal margin without altering electrical behavior.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and REACH Unaffected. The ERJ-12SF1870U additionally carries AEC-Q200 automotive qualification. All certifications are suitable for industrial and commercial applications.

Q: Can the ERJ-12SF1870U be used in automotive applications?

A: The ERJ-12SF1870U carries AEC-Q200 qualification, making it suitable for automotive applications. The RC5025F1870CS does not carry automotive qualification and should not be specified for automotive designs without additional qualification review.