Rubycon 25ST225MB23225 Film Capacitor Equivalent & Substitute Parts

Part Overview

The Rubycon 25ST225MB23225 is a 2.2 µF film capacitor rated for 25V DC applications with acrylic metallized dielectric construction in 1210 (3225 metric) surface mount package. This component is designed for DC link and DC filtering applications in electronic circuits requiring stable capacitance and low ESR characteristics.

The 25ST225MB23225 carries an obsolete product status. Identifying qualified substitute parts ensures design continuity and maintains supply chain reliability for production and repair applications.

Substiute Parts

25ST225MB23225

RubyconIn Stock: 88725ST225MB23225 Datasheet

Current PartRFQ

25MU225MB23225

RubyconIn Stock: 600925MU225MB23225 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 25ST225MB23225 is determined by strict equivalence across the following critical parameters:

• Capacitance value: 2.2 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 25V DC minimum (exact match required)
• Dielectric material: Acrylic, Metallized (exact match required)
• Package: 1210 (3225 Metric) surface mount (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• Termination: Solder pads (exact match required)
• Compliance: ROHS3 and REACH requirements (exact match required)

The Rubycon 25MU225MB23225 meets all substitution criteria as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

The Rubycon 25MU225MB23225 is the qualified substitute for the obsolete 25ST225MB23225. Both parts are manufactured by Rubycon and share identical electrical specifications, package dimensions, and compliance certifications.

The 25MU225MB23225 carries active product status, ensuring ongoing availability and supply chain support. The maximum seated height difference of 0.008" (0.20mm) between the two parts is within typical PCB design tolerances for surface mount applications and does not impact circuit performance or board layout compatibility.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the 25MU225MB23225 be used as a direct replacement for the 25ST225MB23225?

A: Yes. The 25MU225MB23225 meets all electrical and mechanical specifications of the 25ST225MB23225. Both parts have identical capacitance, voltage rating, tolerance, dielectric material, package size, and operating temperature range.

Q: What is the difference between the ST and MU series designations?

A: The ST and MU designations indicate different product series within Rubycon's PMLCAP® film capacitor line. The 25MU225MB23225 represents the active production series, while the 25ST225MB23225 is obsolete. Electrical performance and mechanical compatibility remain equivalent.

Q: Does the height difference between these parts affect PCB assembly?

A: The seated height difference of 0.008" (0.20mm) is negligible for standard surface mount assembly processes. PCB designs accommodating the original 0.071" height will accept the substitute part without modification.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the 25ST225MB23225 and 25MU225MB23225 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What packaging options are available for the substitute part?

A: The 25MU225MB23225 is supplied in Tape & Reel (TR) packaging, standard for high-volume surface mount production. The original 25ST225MB23225 packaging format is not specified in available documentation.