Equivalent & Substitute Parts for 4TPU47MSK

Part Overview

The 4TPU47MSK is a 47 µF molded tantalum polymer capacitor rated at 4 V in 0805 (2012 Metric) surface mount package, manufactured by Panasonic Electronic Components under the POSCAP™ TPU series. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The part delivers 150 mOhm equivalent series resistance at 100 kHz with general-purpose functionality across industrial and consumer electronics applications.

Substiute Parts

4TPU47MSK

Panasonic Electronic ComponentsIn Stock: 11374TPU47MSK Datasheet

Current PartRFQ

F380J476MSAAH1

KYOCERA AVXIn Stock: 21456F380J476MSAAH1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 4TPU47MSK is determined by the following critical parameters:

• Capacitance Value: Must be 47 µF (±20% tolerance acceptable)
• Package / Case: Must be 0805 (2012 Metric) for PCB compatibility
• Mounting Type: Must be Surface Mount
• ESR Specification: Must match or be lower than 150 mOhm @ 100 kHz
• Voltage Rating: Must be equal to or greater than 4 V (higher ratings provide design margin)
• Type: Molded Tantalum Polymer construction
• Compliance: RoHS3 compliance required for regulatory alignment

The identified substitute F380J476MSAAH1 from KYOCERA AVX meets all critical substitution criteria. This part maintains identical capacitance, tolerance, package dimensions, and ESR characteristics while offering an elevated voltage rating of 6.3 V, which provides additional safety margin in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The F380J476MSAAH1 substitute part is electrically and mechanically compatible with the 4TPU47MSK for direct replacement in existing designs. Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The substitute offers design advantages through higher voltage rating (6.3 V versus 4 V) and extended operating temperature range (-55°C to 105°C versus -55°C to 85°C), providing increased operational margin. The lower seated height (0.90mm versus 1.00mm) presents no compatibility issues for standard PCB assembly processes.

Both parts carry legacy product status (Obsolete and Not For New Designs respectively), indicating limited long-term availability. For new design initiatives, evaluation of current-generation tantalum polymer capacitors with equivalent electrical specifications is recommended to ensure sustained supply chain access.

Frequently Asked Questions (FAQ)

Q: Can F380J476MSAAH1 be used as a direct drop-in replacement for 4TPU47MSK?

A: Yes. Both parts share identical capacitance (47 µF), tolerance (±20%), package (0805 / 2012 Metric), ESR (150 mOhm @ 100 kHz), and mounting type (Surface Mount). The substitute's higher voltage rating and extended temperature range present no compatibility issues for applications designed for the original part.

Q: What are the key differences between these parts?

A: The primary differences are voltage rating (4 V versus 6.3 V), operating temperature range (-55°C to 85°C versus -55°C to 105°C), and seated height (1.00mm versus 0.90mm). The substitute provides enhanced electrical margin and thermal performance without affecting PCB layout or assembly compatibility.

Q: Are both parts compliant with current regulatory standards?

A: Both parts are ROHS3 compliant. However, both carry legacy product status, indicating they are not recommended for new design implementations. Current-generation alternatives should be evaluated for new applications requiring sustained component availability.

Q: Does the lower seated height of F380J476MSAAH1 affect PCB assembly?

A: No. The 0.10mm height reduction (from 1.00mm to 0.90mm) is within standard PCB assembly tolerances and does not impact component placement, soldering, or clearance requirements for typical surface mount processes.

Q: What is the significance of the different product status designations?

A: 4TPU47MSK is classified as Obsolete, indicating production has ended. F380J476MSAAH1 is classified as Not For New Designs, indicating limited availability and no active development support. Both designations reflect legacy component status and suggest evaluation of current alternatives for sustained supply chain reliability.