F970J226MBA Equivalent & Substitute Parts

Part Overview

The F970J226MBA is a 22 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 6.3 V operation in a 1411 (3528 Metric) surface mount package. This component is designed for applications requiring compact, high-reliability energy storage in automotive and industrial environments. The part is currently active in production with 2217 units available in stock.

Equivalent and substitute parts are identified to provide design flexibility, support supply chain continuity, and accommodate component availability variations across manufacturing regions and procurement channels.

Substiute Parts

F970J226MBA

KYOCERA AVXIn Stock: 2263F970J226MBA Datasheet

Current PartRFQ

T491B226M006AT

KEMETIn Stock: 2357T491B226M006AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the F970J226MBA is determined by strict equivalence across the following parameters:

• Capacitance value: 22 µF (exact match required)
• Rated voltage: 6.3 V (exact match required)
• Tolerance: ±20% (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Component type: Molded Tantalum (exact match required)
• Operating temperature range: -55°C to 125°C (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)

The substitute part T491B226M006AT meets all mandatory equivalence criteria. Variations in ESR (Equivalent Series Resistance), moisture sensitivity level, and physical height do not disqualify substitution when all primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both the F970J226MBA and T491B226M006AT are active production components with full ROHS3 compliance and REACH unaffected status, making either suitable for new designs and ongoing production applications.

The F970J226MBA features lower ESR at 1.9 Ohm compared to the T491B226M006AT at 2.5 Ohm. Applications with stringent ripple current or thermal dissipation requirements may benefit from the lower ESR characteristic of the KYOCERA AVX part.

The T491B226M006AT offers superior moisture handling with MSL 1 (Unlimited) versus MSL 3 (168 Hours) for the F970J226MBA. This advantage is relevant for applications involving extended storage, high-humidity environments, or extended lead times prior to assembly.

Both parts are mechanically compatible within the 1411 package footprint. The T491B226M006AT seated height of 0.083" (2.10mm) is 0.008" lower than the F970J226MBA at 0.091" (2.30mm), which may provide marginal benefits in space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can T491B226M006AT be used as a direct replacement for F970J226MBA in existing designs?

A: Yes. Both parts share identical capacitance (22 µF), voltage rating (6.3 V), tolerance (±20%), package (1411), and operating temperature range (-55°C to 125°C). Mechanical footprint compatibility is confirmed. The parts are electrically and mechanically interchangeable.

Q: What is the significance of the ESR difference between these parts?

A: The F970J226MBA has 1.9 Ohm ESR while the T491B226M006AT has 2.5 Ohm ESR. ESR affects ripple current handling and heat generation. Applications with high AC ripple current or thermal constraints may show measurable differences. For general-purpose DC filtering applications, this difference is typically not critical.

Q: Why does the T491B226M006AT have a lower moisture sensitivity level?

A: MSL 1 (Unlimited) for the KEMET part versus MSL 3 (168 Hours) for the KYOCERA AVX part indicates different moisture absorption characteristics. MSL 1 allows indefinite storage without baking, while MSL 3 requires baking if storage exceeds 168 hours in standard humidity conditions. This affects supply chain handling and assembly scheduling.

Q: Are there any height clearance concerns when substituting these parts?

A: The T491B226M006AT is 0.008" (0.20mm) shorter in seated height. This difference is negligible for most applications. Verify clearance only if the design has tight vertical constraints or proximity to other components.

Q: Do both parts meet automotive qualification requirements?

A: The F970J226MBA carries AEC-Q200 automotive qualification. The T491B226M006AT is listed as General Purpose. Automotive applications must verify that the KEMET part meets specific project qualification requirements before substitution.

Q: What is the packaging format for both parts?

A: Both parts are supplied in Tape & Reel (TR) format, standard for surface mount production assembly.