F970J475MAAHT3 Equivalent & Substitute Parts

Part Overview

The F970J475MAAHT3 is a 4.7 µF molded tantalum capacitor rated at 6.3 V in a 1206 (3216 Metric) surface mount package, manufactured by KYOCERA AVX. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part is qualified to AEC-Q200 automotive standards and features high reliability ratings suitable for demanding applications.

Substiute Parts

F970J475MAAHT3

KYOCERA AVXIn Stock: 1251F970J475MAAHT3 Datasheet

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T491A475M006AT

KEMETIn Stock: 1997T491A475M006AT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the F970J475MAAHT3 is determined by strict equivalence across the following parameters:

• Capacitance Value: 4.7 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Molded Tantalum (exact match required)

The substitute part T491A475M006AT from KEMET meets all these core electrical and mechanical parameters, enabling direct functional replacement in circuit designs originally specified for the F970J475MAAHT3.

Parameter Comparison

Engineering Selection Recommendations

The T491A475M006AT is a direct functional substitute for the F970J475MAAHT3 based on matching electrical specifications (capacitance, tolerance, voltage rating) and identical mechanical package dimensions. The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

Both parts maintain ROHS3 compliance and are suitable for applications requiring tantalum capacitor technology in the 1206 package format. The substitute part offers improved moisture sensitivity characteristics (MSL 1 versus MSL 3), which provides additional reliability margin in storage and handling environments.

Frequently Asked Questions (FAQ)

Q: Can T491A475M006AT replace F970J475MAAHT3 in existing designs?

A: Yes. Both parts share identical capacitance (4.7 µF), tolerance (±20%), voltage rating (6.3 V), and package dimensions (1206 / 3216 Metric). Physical and electrical compatibility is confirmed for direct substitution.

Q: What are the differences between these parts?

A: The primary differences are ESR (4 Ohm versus 5.5 Ohm), maximum operating temperature (135°C versus 125°C), and moisture sensitivity level (MSL 3 versus MSL 1). The substitute part offers superior moisture handling characteristics.

Q: Is the higher ESR of the substitute part a concern?

A: ESR differences of this magnitude (1.5 Ohm) are within acceptable tolerances for general-purpose tantalum capacitor applications. Circuit-specific requirements should be evaluated if ESR is a critical design parameter.

Q: Are both parts RoHS compliant?

A: Yes. Both F970J475MAAHT3 and T491A475M006AT are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing.

Q: What is the significance of the MSL rating difference?

A: MSL 1 (unlimited shelf life) provides greater flexibility in storage and handling compared to MSL 3 (168-hour limit). The substitute part requires less stringent moisture control during inventory management.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. Both parts use the 1206 (3216 Metric) package with identical dimensions (0.126" L x 0.063" W, 3.20mm x 1.60mm) and maximum seated height (0.071" / 1.80mm), ensuring PCB layout compatibility.