Equivalent & Substitute Parts for 08055J390GAWTR

Part Overview

The 08055J390GAWTR is a 39 pF thin film capacitor rated at 50 V in 0805 (2012 Metric) surface mount package, manufactured by KYOCERA AVX under the Accu-F® series. This component is classified as obsolete, indicating discontinuation from active production. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

08055J390GAWTR

KYOCERA AVXIn Stock: 69908055J390GAWTR Datasheet

Current PartRFQ

08053K390FBTTR

KYOCERA AVXIn Stock: 88908053K390FBTTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 08055J390GAWTR is determined by the following critical parameters:

• Capacitance Value: Must be 39 pF (exact match required)
• Package / Case: Must be 0805 (2012 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• Features: Must maintain RF, High Q, Low Loss characteristics
• Voltage Rating: Substitute must meet or exceed the 50 V requirement for safe operation

The substitute part 08053K390FBTTR meets the capacitance, package, mounting type, temperature range, and feature requirements. However, it carries a lower voltage rating of 25 V, which represents a functional limitation in applications requiring the full 50 V rating.

Parameter Comparison

Engineering Selection Recommendations

The 08053K390FBTTR serves as an active substitute for the obsolete 08055J390GAWTR with the following considerations:

Advantages of substitution:

• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance meets current environmental and regulatory requirements
• Improved tolerance specification (±1% versus ±2%) provides tighter capacitance control
• Identical capacitance, package, and thermal operating range maintain mechanical and electrical compatibility

Limitations of substitution:

• Reduced voltage rating (25 V versus 50 V) restricts use to applications operating at or below 25 V
• Increased seated height (1.13mm versus 0.73mm) may affect PCB layout and clearance in space-constrained designs

Selection of the 08053K390FBTTR is appropriate for applications where the 25 V rating is sufficient and regulatory compliance with ROHS3 is required. Applications requiring the full 50 V rating require alternative sourcing strategies.

Frequently Asked Questions (FAQ)

Q: Can the 08053K390FBTTR be used in place of the 08055J390GAWTR in all applications?

A: No. The substitute part has a 25 V voltage rating compared to the original 50 V rating. It is suitable only for circuits operating at 25 V or below. Circuits designed for 50 V operation require a different substitute or the original part.

Q: What is the significance of the tolerance difference between ±2% and ±1%?

A: The ±1% tolerance of the substitute part provides tighter capacitance control, which may improve circuit performance in applications sensitive to capacitance variation. This is a functional improvement over the original part.

Q: Are there physical compatibility concerns with the increased height of the substitute part?

A: The substitute part has a maximum seated height of 1.13mm compared to 0.73mm for the original. PCB layouts with tight vertical clearance constraints may require design review to confirm adequate space.

Q: Does the ROHS3 compliance of the substitute part affect electrical performance?

A: ROHS3 compliance indicates adherence to environmental and material restrictions but does not alter the electrical performance characteristics of the capacitor. RF, High Q, and Low Loss features remain equivalent.

Q: Are both parts from the same manufacturer?

A: Yes. Both the 08055J390GAWTR and 08053K390FBTTR are manufactured by KYOCERA AVX, though they belong to different product series (Accu-F® and Accu-P® respectively).

Q: What should be done if a 50 V rated substitute is required?

A: The provided substitute list contains only the 08053K390FBTTR. Applications requiring 50 V operation require evaluation of alternative component sources or design modifications to accommodate lower voltage ratings.