TACR685M006R Equivalent & Substitute Parts

Part Overview

The TACR685M006R is a 6.8 µF molded tantalum capacitor manufactured by KYOCERA AVX, rated for 6.3 V operation in a 0805 (2012 Metric) surface mount package. This component is classified as Active and is suitable for general-purpose applications requiring compact form factor and reliable performance across the -55°C to 125°C operating temperature range. Substitute parts are identified to address inventory availability, packaging preferences, or voltage rating upgrades while maintaining core electrical and mechanical compatibility.

Substiute Parts

TACR685M006R

KYOCERA AVXIn Stock: 782TACR685M006R Datasheet

Current PartRFQ

TAJR685K010RNJ

KYOCERA AVXIn Stock: 2151TAJR685K010RNJ Datasheet

UpgradeRFQ

TAJR685M010RNJ

KYOCERA AVXIn Stock: 1420TAJR685M010RNJ Datasheet

UpgradeRFQ

TCP0J685M8R

KYOCERA AVXIn Stock: 6413TCP0J685M8R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TACR685M006R is determined by the following criteria:

Primary Compatibility Requirements:

• Capacitance value: 6.8 µF (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Type: Molded Tantalum (exact match required)
• Operating Temperature: -55°C ~ 125°C (exact match required)

Allowable Variations:

• Voltage - Rated: Equal to or greater than 6.3 V
• Tolerance: ±10% or ±20%
• ESR: Variations within acceptable range for application
• Packaging format: Tape & Reel (TR), Cut Tape (CT), or Digi-Reel®
• Series designation: TAC, TAJ, or TC series

The identified substitute parts maintain all primary compatibility requirements while offering variations in voltage rating, tolerance, ESR characteristics, and packaging options.

Parameter Comparison

Engineering Selection Recommendations

TAJR685K010RNJ (Upgrade - Preferred for New Designs)

This substitute offers a higher voltage rating of 10 V with improved tolerance specification of ±10%, providing enhanced design margin and tighter capacitance control. The TAJ series designation indicates active product status suitable for new design implementations. ESR remains within acceptable range at 5.2 Ohm. Available in Cut Tape (CT) & Digi-Reel® packaging with 2100 units in stock.

TAJR685M010RNJ (Upgrade - Alternative)

This substitute provides the same 10 V voltage upgrade with ±20% tolerance matching the original specification. The TAJ series ensures active product status. ESR specification of 5.2 Ohm is comparable to the original. Available in Tape & Reel (TR) packaging with 1403 units in stock, suitable for high-volume production environments.

TCP0J685M8R (Equivalent - Legacy Option)

This substitute maintains the original 6.3 V rating and ±20% tolerance specification. However, the TC series designation indicates "Not For New Designs" product status. ESR is elevated at 9.3 Ohm compared to the original 5 Ohm specification. This part is available in Cut Tape (CT) & Digi-Reel® packaging with 6400 units in stock and should be considered only for legacy system maintenance or when voltage upgrade is not feasible.

Frequently Asked Questions (FAQ)

Q: Can TAJR685K010RNJ or TAJR685M010RNJ be used as direct replacements for TACR685M006R?

A: Yes. Both TAJ series parts maintain the required 6.8 µF capacitance, 0805 package, and surface mount configuration. The 10 V rating exceeds the original 6.3 V requirement, providing additional design margin. ESR values of 5.2 Ohm are comparable to the original 5 Ohm specification.

Q: What is the difference between TAJR685K010RNJ and TAJR685M010RNJ?

A: The primary difference is tolerance specification. TAJR685K010RNJ offers ±10% tolerance with tighter capacitance control, while TAJR685M010RNJ maintains ±20% tolerance. Both share identical voltage rating, ESR, and package specifications. Selection depends on application tolerance requirements.

Q: Why is TCP0J685M8R marked "Not For New Designs"?

A: The TC series has been superseded by the TAJ series. While TCP0J685M8R remains functionally compatible with the original TACR685M006R, KYOCERA AVX recommends TAJ series parts for new design implementations. The elevated ESR of 9.3 Ohm may also impact performance in noise-sensitive applications compared to the original 5 Ohm specification.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® packaging formats are handling and delivery options only. Electrical specifications, performance characteristics, and reliability remain identical across packaging formats for the same part number.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. TACR685M006R and all identified substitute parts (TAJR685K010RNJ, TAJR685M010RNJ, TCP0J685M8R) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with standard manufacturing processes and environmental regulations.