Equivalent & Substitute Parts for 20TQC22MYFD

Part Overview

The 20TQC22MYFD is a 22 µF molded tantalum polymer capacitor rated at 20 V, manufactured by Panasonic Electronic Components as part of the POSCAP™ TQC series. This component is designed for general-purpose surface mount applications in the 2917 (7343 Metric) package format.

The 20TQC22MYFD has reached obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

20TQC22MYFD

Panasonic Electronic ComponentsIn Stock: 196620TQC22MYFD Datasheet

Current PartRFQ

25TQC22MYFD

Panasonic Electronic ComponentsIn Stock: 179525TQC22MYFD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 25TQC22MYFD qualifies as a direct substitute for the 20TQC22MYFD based on the following substitution criteria:

Matching Parameters:

• Capacitance: 22 µF (identical)
• Package / Case: 2917 (7343 Metric) (identical)
• Physical Dimensions: 0.287" L × 0.169" W (7.30 mm × 4.30 mm) (identical)
• Height - Seated (Max): 0.079" (2.00 mm) (identical)
• Mounting Type: Surface Mount (identical)
• Operating Temperature Range: -55°C to 105°C (identical)
• Lifetime @ 105°C: 2000 Hrs (identical)
• Series: POSCAP™ TQC (identical)
• Tolerance: ±20% (identical)
• Type: Molded Tantalum Polymer (identical)

Allowable Variation:

• Voltage Rating: 25 V (substitute) vs. 20 V (original) — The higher voltage rating of the substitute part is electrically compatible with circuits designed for 20 V operation, as the substitute can safely operate at lower voltage levels.
• ESR @ 100kHz: 60 mOhm (substitute) vs. 80 mOhm (original) — The lower ESR of the substitute part represents an improvement in electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The 25TQC22MYFD is the manufacturer-recommended substitute for the obsolete 20TQC22MYFD. Both parts maintain identical compliance certifications (ROHS3 Compliant, REACH Unaffected) and share the same ECCN and HTSUS classifications.

The substitute part is currently in active production status, ensuring long-term availability and supply chain stability. The 25 V voltage rating of the substitute part provides additional design margin for circuits originally specified at 20 V operation. The improved ESR characteristic (60 mOhm vs. 80 mOhm) offers enhanced electrical performance without requiring circuit redesign.

Physical and thermal characteristics remain unchanged, allowing direct board-level substitution without PCB layout modifications or thermal management adjustments.

Frequently Asked Questions (FAQ)

Q: Can the 25TQC22MYFD be used in place of the 20TQC22MYFD without circuit modifications?

A: Yes. The substitute part has identical capacitance, package dimensions, mounting type, and operating temperature range. The higher voltage rating (25 V vs. 20 V) is compatible with 20 V circuit designs, as the component operates safely at lower voltage levels.

Q: What is the significance of the lower ESR in the substitute part?

A: The 25TQC22MYFD has an ESR of 60 mOhm compared to 80 mOhm in the original part. Lower ESR reduces heat generation and improves transient response characteristics, representing an electrical improvement for the application.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both parts use the 2917 (7343 Metric) package with dimensions of 0.287" L × 0.169" W (7.30 mm × 4.30 mm) and a maximum seated height of 0.079" (2.00 mm). Direct PCB substitution is possible without layout changes.

Q: What is the product status difference, and why does it matter?

A: The 20TQC22MYFD is obsolete, while the 25TQC22MYFD is active production. Active status ensures continued component availability, consistent manufacturing processes, and reliable supply chain access for future production requirements.

Q: Are compliance certifications maintained with the substitute part?

A: Yes. Both parts are ROHS3 Compliant and REACH Unaffected, maintaining identical regulatory compliance for applications requiring these certifications.