Equivalent & Substitute Parts for Rubycon 63ST684M4532

Part Overview

The Rubycon 63ST684M4532 is a 0.68 µF film capacitor rated for 63V DC, designed for surface mount applications in 1812 (4532 Metric) package format. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance requirements. The capacitor utilizes acrylic metallized dielectric technology and is specified for DC link and DC filtering applications.

Substiute Parts

63ST684M4532

RubyconIn Stock: 117663ST684M4532 Datasheet

Current PartRFQ

63MU684M4532

RubyconIn Stock: 108763MU684M4532 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 63ST684M4532 is determined by strict equivalence across the following parameters:

• Capacitance value: 0.68 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 63V DC (exact match required)
• Dielectric material: Acrylic, Metallized (exact match required)
• Package format: 1812 (4532 Metric) (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• Mounting type: Surface Mount (exact match required)

The identified substitute part 63MU684M4532 meets all electrical and mechanical parameters required for direct substitution. The primary distinction between the main part and substitute is the series designation (ST versus MU) and product status (Obsolete versus Active).

Parameter Comparison

Engineering Selection Recommendations

The 63MU684M4532 is the direct parametric equivalent for the obsolete 63ST684M4532. Both parts are manufactured by Rubycon and share identical electrical specifications, mechanical dimensions, and compliance certifications. The substitute part maintains ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.

Selection of the 63MU684M4532 is supported by its active product status, which ensures continued availability and supply chain reliability compared to the obsolete main part. The packaging difference (Tape & Reel for the substitute versus unspecified for the main part) does not affect electrical or mechanical compatibility in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 63MU684M4532 be used as a direct replacement for the 63ST684M4532?

A: Yes. Both parts are identical in capacitance (0.68 µF), tolerance (±20%), voltage rating (63V DC), dielectric material (Acrylic, Metallized), package format (1812/4532 Metric), and operating temperature range (-55°C to 125°C). The parts are electrically and mechanically interchangeable.

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. Both series meet identical electrical and mechanical specifications for this 0.68 µF 63V application. The MU series is currently active in production.

Q: Does the packaging format difference affect circuit compatibility?

A: No. The Tape & Reel (TR) packaging of the 63MU684M4532 is a supply format only and does not affect the component's electrical performance or physical dimensions when mounted on a PCB. Both parts use identical solder pad termination and 1812 (4532 Metric) package geometry.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the 63ST684M4532 and 63MU684M4532 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts are rated MSL 5 with a 48-hour floor life requirement. Standard moisture control procedures during storage and handling are necessary to maintain component reliability.