F970J686MNA Equivalent & Substitute Parts

Part Overview

The F970J686MNA is a 68 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 6.3 V operation in a 2917 (7343 Metric) surface mount package. This component is designed for applications requiring compact, high-reliability energy storage with automotive-grade performance. The part maintains active product status with full RoHS3 compliance and AEC-Q200 automotive qualification. Substitute parts are identified to provide design flexibility when the primary part is unavailable or when alternative electrical characteristics better suit specific application requirements.

Substiute Parts

F970J686MNA

KYOCERA AVXIn Stock: 928F970J686MNA Datasheet

Current PartRFQ

T491D686M006AT

KEMETIn Stock: 1631T491D686M006AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the F970J686MNA is determined by strict equivalence across the following parameters:

• Capacitance value: 68 µF (exact match required)
• Tolerance: ±20% (exact match required)
• Voltage rating: 6.3 V (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting type: Surface Mount (exact match required)
• Operating temperature range: -55°C ~ 125°C (exact match required)
• RoHS3 compliance (required for regulatory equivalence)

The identified substitute T491D686M006AT from KEMET meets all mandatory electrical and mechanical parameters. Variations in ESR (Equivalent Series Resistance), MSL (Moisture Sensitivity Level), and physical height remain within acceptable tolerances for direct substitution in equivalent circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both F970J686MNA and T491D686M006AT are active products with full RoHS3 compliance and equivalent electrical specifications. The F970J686MNA carries AEC-Q200 automotive qualification and is specified for high-reliability applications. The T491D686M006AT offers improved moisture sensitivity characteristics (MSL 1 versus MSL 3) and extended lifetime rating (2000 Hrs @ 125°C). Selection between these parts should be based on application-specific requirements for automotive qualification, moisture exposure conditions, and ESR tolerance. Both parts are suitable for direct substitution in equivalent circuit designs where the specified electrical parameters are met.

Frequently Asked Questions (FAQ)

Q: Can T491D686M006AT replace F970J686MNA in automotive applications? A: Both parts meet RoHS3 compliance. The F970J686MNA carries explicit AEC-Q200 automotive qualification. The T491D686M006AT is suitable for general-purpose applications. Automotive application requirements should be verified against design specifications and qualification standards.

Q: What is the significance of the ESR difference (600 mOhm vs. 800 mOhm)? A: ESR affects ripple current handling and thermal performance. The F970J686MNA has lower ESR at 600 mOhm, while the T491D686M006AT is specified at 800 mOhm. Both values are within acceptable ranges for 68 µF, 6.3 V tantalum capacitors. Application-specific ripple current requirements should be evaluated.

Q: Are the physical dimensions compatible for PCB layout? A: Both parts use the 2917 (7343 Metric) package with identical footprint dimensions (0.287" L x 0.169" W). Maximum seated height differs by 0.004" (0.10mm), which is negligible for standard PCB assembly. Both parts are compatible with equivalent PCB layouts.

Q: What does MSL 3 versus MSL 1 mean for handling and storage? A: MSL 3 requires reflow within 168 hours of moisture exposure. MSL 1 has unlimited shelf life without moisture bake requirements. The T491D686M006AT offers superior moisture tolerance for extended storage and supply chain flexibility.

Q: Are both parts available in the same packaging format? A: F970J686MNA is available in standard packaging. T491D686M006AT is specified as Tape & Reel (TR). Packaging format should be confirmed with supplier availability for production requirements.