8TPC22M Equivalent & Substitute Parts Reference

Part Overview

The 8TPC22M is a 22 µF molded tantalum polymer capacitor rated at 8 V, manufactured by Panasonic Electronic Components as part of the POSCAP™ TPC series. This component is designated as Last Time Buy, indicating discontinued production. The part is housed in a 1411 (3528 Metric) surface mount package with an ESR of 70 mOhm @ 100 kHz and operates across -55°C to 105°C. Equivalent and substitute parts are necessary due to the Last Time Buy status and to support design flexibility across voltage ratings and manufacturer options while maintaining functional compatibility.

Substiute Parts

8TPC22M

Panasonic Electronic ComponentsIn Stock: 20968TPC22M Datasheet

Current PartRFQ

20TQC22MYFB

Panasonic Electronic ComponentsIn Stock: 2449420TQC22MYFB Datasheet

MFR RecommendedRFQ

T520T226M008ATE070

KEMETIn Stock: 918T520T226M008ATE070 Datasheet

DirectRFQ

T55T226M010C0070

Vishay SpragueIn Stock: 5100T55T226M010C0070 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 8TPC22M are classified based on the following substitution criteria:

Primary Substitution Parameters:

• Capacitance: 22 µF (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C to 105°C (exact match required)
• Tolerance: ±20% (exact match required)
• Type: Molded Tantalum Polymer (exact match required)

Secondary Substitution Parameters (allowable variation):

• Voltage Rating: May be equal to or greater than 8 V
• ESR @ 100 kHz: May be equal to or less than 70 mOhm

Substitute parts are grouped as follows:

MFR Recommended: 20TQC22MYFB (Panasonic) — Higher voltage rating (20 V) with marginally higher ESR (80 mOhm), same package and capacitance.

Direct Manufacturer: T520T226M008ATE070 (KEMET) — Alternative manufacturer with equivalent electrical characteristics.

Similar: T55T226M010C0070 (Vishay Sprague) — Higher voltage rating (10 V) with matching ESR (70 mOhm), same package and capacitance.

Parameter Comparison

Engineering Selection Recommendations

20TQC22MYFB (Panasonic): This MFR recommended substitute is the preferred choice for new designs. It maintains the same manufacturer ecosystem, package footprint, and capacitance while offering higher voltage headroom (20 V vs. 8 V). The marginally increased ESR (80 mOhm vs. 70 mOhm) remains within acceptable performance parameters for general-purpose applications. Active product status ensures long-term availability and supply chain stability.

T55T226M010C0070 (Vishay Sprague): This substitute provides equivalent ESR performance (70 mOhm) with a moderate voltage increase (10 V vs. 8 V). It is suitable for designs requiring minimal electrical parameter deviation. Active product status and ROHS3 compliance support procurement reliability.

T520T226M008ATE070 (KEMET): This direct manufacturer alternative maintains the original 8 V voltage rating and is suitable for applications requiring exact electrical specifications. Active product status supports availability.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can 20TQC22MYFB replace 8TPC22M in my circuit? A: Yes. The 20TQC22MYFB is electrically compatible as a direct substitute. The higher voltage rating (20 V) provides additional safety margin in the 8 V application. The ESR increase from 70 mOhm to 80 mOhm is negligible for general-purpose capacitor applications and does not affect functional performance in standard filtering and decoupling circuits.

Q: What is the difference between the substitute parts? A: The three substitutes differ by manufacturer and voltage rating. 20TQC22MYFB offers the highest voltage (20 V) and is from the same manufacturer as the main part. T55T226M010C0070 provides a mid-range voltage option (10 V) with matching ESR. T520T226M008ATE070 maintains the original 8 V rating from an alternative manufacturer. All three maintain identical capacitance, package, and operating temperature range.

Q: Are the package dimensions identical across all substitutes? A: Yes. All parts use the 1411 (3528 Metric) surface mount package with identical footprints. The 8TPC22M and T55T226M010C0070 share the same seated height (0.047" / 1.20 mm). The 20TQC22MYFB has a slightly increased seated height (0.079" / 2.00 mm) due to internal construction differences, but this remains compatible with standard PCB assembly processes and does not affect electrical performance.

Q: Why is the 8TPC22M marked as Last Time Buy? A: Last Time Buy status indicates that Panasonic has discontinued production of this specific part number. Substitute parts with Active status ensure continued availability for new designs and ongoing production requirements.

Q: Are all substitutes RoHS3 compliant? A: Yes. The 8TPC22M, 20TQC22MYFB, and T55T226M010C0070 are all ROHS3 compliant. Compliance information for T520T226M008ATE070 was not provided in the specification data.