F970J226MBAHT3 Equivalent & Substitute Parts

Part Overview

The F970J226MBAHT3 is a 22 µF molded tantalum capacitor rated at 6.3 V in a 1411 (3528 Metric) surface mount package, manufactured by KYOCERA AVX. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part features automotive-grade reliability with AEC-Q200 certification and operates across a temperature range of -55°C to 135°C with a 2000-hour lifetime rating at 135°C.

Substiute Parts

F970J226MBAHT3

KYOCERA AVXIn Stock: 763F970J226MBAHT3 Datasheet

Current PartRFQ

T491B226M006AT

KEMETIn Stock: 2357T491B226M006AT Datasheet

UpgradeRFQ

T494B226M006AH

KEMETIn Stock: 1040T494B226M006AH Datasheet

UpgradeRFQ

T494B226M006AT

KEMETIn Stock: 10333T494B226M006AT Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the F970J226MBAHT3 is determined by strict equivalence across the following parameters:

• Capacitance: 22 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• Package / Case: 1411 (3528 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.138" L x 0.110" W, Height 0.083" max (exact match required)

The substitute parts listed below meet all these core electrical and mechanical parameters. Variations in ESR (Equivalent Series Resistance), operating temperature range, lifetime ratings, and compliance certifications are secondary considerations that may affect performance characteristics but do not prevent functional substitution within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—T491B226M006AT, T494B226M006AH, and T494B226M006AT—satisfy the core electrical and mechanical substitution criteria for the F970J226MBAHT3. Selection among these alternatives depends on specific application requirements and compliance mandates:

T491B226M006AT (KEMET) is an active product with ROHS3 compliance and improved moisture sensitivity (MSL 1). The ESR of 2.5 Ohm is closest to the original part's 1.9 Ohm specification, making it suitable for applications with moderate ESR sensitivity. Operating temperature is limited to 125°C.

T494B226M006AT (KEMET) is an active product with ROHS3 compliance, MSL 1 moisture sensitivity, and significantly lower ESR at 600 mOhm. This part is preferred for applications requiring minimal ESR or where thermal performance at elevated temperatures is critical within the 125°C operating limit. Highest inventory availability (10,322 pcs) supports production continuity.

T494B226M006AH (KEMET) is an active product with identical electrical specifications to T494B226M006AT but carries RoHS non-compliance status. This part is suitable only for applications where RoHS compliance is not mandated. MSL 1 and 600 mOhm ESR match the T494B226M006AT variant.

For new designs or applications requiring regulatory compliance, T491B226M006AT or T494B226M006AT are recommended. For cost-sensitive applications without compliance constraints, T494B226M006AH remains functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can T491B226M006AT, T494B226M006AH, and T494B226M006AT be used interchangeably with F970J226MBAHT3?

A: Yes, within the specified electrical and mechanical parameters. All three parts share identical capacitance (22 µF), tolerance (±20%), voltage rating (6.3 V), package type (1411/3528 Metric), and physical dimensions. Differences in ESR, operating temperature range, and compliance certifications may affect performance in specific applications but do not prevent functional substitution.

Q: What is the significance of ESR differences between the original part and substitutes?

A: ESR affects ripple current handling, thermal performance, and frequency response. The original F970J226MBAHT3 has 1.9 Ohm ESR. T491B226M006AT provides 2.5 Ohm ESR (slightly higher), while T494B226M006AT and T494B226M006AH provide 600 mOhm ESR (significantly lower). Lower ESR generally improves performance in high-frequency or high-ripple-current applications. Selection should align with circuit requirements.

Q: Why is the operating temperature range different between the original part and substitutes?

A: The F970J226MBAHT3 operates to 135°C, while all KEMET substitutes are rated to 125°C maximum. This 10°C difference may be significant in thermal-constrained applications. Verify that your application's maximum operating temperature does not exceed 125°C when using substitute parts.

Q: What does MSL (Moisture Sensitivity Level) mean, and why does it differ?

A: MSL indicates the maximum time a component can be exposed to moisture before soldering. The original part has MSL 3 (168 hours), while all substitutes have MSL 1 (unlimited). MSL 1 is superior and indicates better moisture resistance, reducing risk of damage during storage and handling.

Q: Are all substitute parts RoHS compliant?

A: T491B226M006AT and T494B226M006AT are ROHS3 compliant. T494B226M006AH is RoHS non-compliant. For applications subject to RoHS regulations, use only T491B226M006AT or T494B226M006AT.

Q: What is the difference between T494B226M006AT and T494B226M006AH?

A: Both parts are electrically and mechanically identical with 600 mOhm ESR and MSL 1 rating. The primary difference is RoHS compliance: T494B226M006AT is ROHS3 compliant, while T494B226M006AH is not. Choose based on regulatory requirements for your application.

Q: Can I use these substitutes in automotive applications?

A: The original F970J226MBAHT3 carries AEC-Q200 automotive certification. The KEMET substitutes do not list AEC-Q200 certification in the provided specifications. Verify automotive qualification requirements with your design authority before substitution in automotive applications.