Equivalent & Substitute Parts for 25ST335M4532

Part Overview

The 25ST335M4532 is a 3.3 µF film capacitor rated for 25V DC, manufactured by Rubycon in the PMLCAP® ST series. This component is designed for DC link and DC filtering applications in surface mount configurations using the 1812 (4532 metric) package. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing design support and procurement planning.

Substiute Parts

25ST335M4532

RubyconIn Stock: 118225ST335M4532 Datasheet

Current PartRFQ

25MU335MC14532

RubyconIn Stock: 74025MU335MC14532 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 25ST335M4532 is determined by strict equivalence across the following critical parameters:

• Capacitance value: 3.3 µF
• Tolerance: ±20%
• Voltage rating: 25V DC
• Dielectric material: Acrylic, Metallized
• Package / Case: 1812 (4532 Metric)
• Physical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm)
• Height - Seated (Max): 0.063" (1.60mm)
• Operating temperature range: -55°C ~ 125°C
• Mounting type: Surface Mount
• Termination: Solder Pads
• Compliance: ROHS3 Compliant, REACH Unaffected

The substitute part 25MU335MC14532 meets all these parameters and is manufactured by the same supplier (Rubycon), differing only in series designation (MU versus ST) and product status (Active versus Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The 25MU335MC14532 is a direct parametric equivalent to the 25ST335M4532. Both components share identical electrical specifications, physical dimensions, and compliance certifications. The primary distinction is product status: the 25ST335M4532 is obsolete while the 25MU335MC14532 is active and currently in production.

For new designs or ongoing procurement, the 25MU335MC14532 is the appropriate selection. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The packaging difference (bulk versus tape & reel) does not affect electrical or mechanical compatibility and should be selected based on assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can the 25MU335MC14532 be used as a direct replacement for the 25ST335M4532?

A: Yes. Both parts are electrically and mechanically identical across all critical parameters: capacitance, voltage rating, tolerance, dielectric material, package dimensions, and operating temperature range. The difference in series designation (ST versus MU) reflects manufacturing series variation within the same product family, not functional difference.

Q: What is the significance of the obsolete status of the 25ST335M4532?

A: Obsolete status indicates the part is no longer manufactured. The 25MU335MC14532 provides continuity for applications currently using the 25ST335M4532 and should be specified for new designs to ensure long-term supply availability.

Q: Are there packaging considerations when switching from 25ST335M4532 to 25MU335MC14532?

A: The main part is supplied in bulk packaging while the substitute is supplied in tape & reel format. This difference affects handling and assembly processes but does not impact electrical or mechanical performance. Select packaging based on your assembly line requirements.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 25ST335M4532 and 25MU335MC14532 are ROHS3 compliant, REACH unaffected, and carry the same ECCN (EAR99) and HTSUS (8532.24.0020) classifications.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1812 (4532 metric) package with identical dimensions: 0.177" L x 0.126" W (4.50mm x 3.20mm) and maximum seated height of 0.063" (1.60mm). They are footprint compatible on PCB layouts.