KEMET T495X687M006ATE045 Equivalent & Substitute Parts

Part Overview

The KEMET T495X687M006ATE045 is a 680 µF molded tantalum capacitor rated at 6.3 V with ±20% tolerance, housed in a 2917 (7343 Metric) surface mount package. This component operates across the temperature range of -55°C to 125°C with a lifetime specification of 2000 hours at 125°C. The part is currently in active production status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, ESR (Equivalent Series Resistance) variation, or packaging format changes while maintaining the core electrical specifications of 680 µF capacitance at 6.3 V rated voltage.

Substiute Parts

T495X687M006ATE045

KEMETIn Stock: 852T495X687M006ATE045 Datasheet

Current PartRFQ

T491X687K006AH

KEMETIn Stock: 1393T491X687K006AH Datasheet

Parametric EquivalentRFQ

T491X687K006AT

KEMETIn Stock: 1755T491X687K006AT Datasheet

Parametric EquivalentRFQ

T494X687K006AT

KEMETIn Stock: 2277T494X687K006AT Datasheet

Parametric EquivalentRFQ

T510X687K006ATE023

KEMETIn Stock: 2879T510X687K006ATE023 Datasheet

Parametric EquivalentRFQ

T510X687M006ATE023

KEMETIn Stock: 3888T510X687M006ATE023 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T495X687M006ATE045 are qualified based on the following criteria:

Primary Matching Parameters (Non-Negotiable):

• Capacitance: 680 µF (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 to 125°C (exact match required)

Secondary Matching Parameters (Allowable Variation):

• Tolerance: ±20% or ±10% (tighter tolerance acceptable)
• ESR @ 100kHz: 23 mOhm to 600 mOhm (variation permitted based on circuit requirements)
• Packaging Format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® (format variation acceptable)
• RoHS Status: RoHS3 Compliant or RoHS non-compliant (compliance level may vary)

All substitute parts maintain identical capacitance, voltage rating, package dimensions, and thermal specifications. Variations in tolerance and ESR reflect different series within the KEMET tantalum capacitor portfolio, each suitable for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Identical Tolerance & Compliance):

T510X687M006ATE023 is the direct equivalent to T495X687M006ATE045. Both parts share ±20% tolerance and RoHS3 compliance. The primary difference is ESR: T510X687M006ATE023 provides 23 mOhm @ 100kHz compared to 45 mOhm @ 100kHz in the original part. Lower ESR reduces ripple current heating and improves transient response characteristics. This part is suitable for applications where improved ESR performance is beneficial without design modification.

RoHS3 Compliant Alternatives with Tighter Tolerance:

T491X687K006AT and T494X687K006AT both offer ±10% tolerance with RoHS3 compliance. T491X687K006AT is available in Cut Tape (CT) & Digi-Reel® packaging, providing flexibility for automated assembly processes. T494X687K006AT provides 100 mOhm ESR, positioning it between the original part and lower-ESR alternatives. Both are suitable when tighter capacitance tolerance is required.

Low-ESR Option (RoHS3 Compliant):

T510X687K006ATE023 combines ±10% tolerance with 23 mOhm ESR and RoHS3 compliance. This part is specified for applications requiring superior high-frequency performance and minimal thermal dissipation.

Legacy or Non-Compliant Applications:

T491X687K006AH is RoHS non-compliant and available only in Tape & Reel format. This part is suitable only for applications where RoHS compliance is not a requirement.

All substitute parts maintain identical operating temperature range (-55°C to 125°C), lifetime specification (2000 Hrs @ 125°C), and physical dimensions (2917 package, 7.30mm × 4.30mm).

Frequently Asked Questions (FAQ)

Q: Can T510X687M006ATE023 be used as a direct replacement for T495X687M006ATE045?

A: Yes. Both parts have identical capacitance (680 µF), voltage rating (6.3 V), tolerance (±20%), package (2917), and RoHS3 compliance. T510X687M006ATE023 has lower ESR (23 mOhm vs. 45 mOhm), which improves performance in high-frequency applications without introducing compatibility issues.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) is continuous reel packaging for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® provides smaller quantities on cut tape with optional Digi-Reel® format for medium-volume production. Both formats contain identical components; packaging format selection depends on assembly volume and equipment compatibility.

Q: Why do some substitute parts have ±10% tolerance instead of ±20%?

A: Tighter tolerance (±10%) indicates higher manufacturing precision and is suitable for applications requiring stricter capacitance accuracy. ±20% tolerance parts are acceptable for general-purpose applications where wider capacitance variation is tolerated. Tighter tolerance parts are backward-compatible with ±20% specifications.

Q: What does ESR variation mean for circuit performance?

A: ESR (Equivalent Series Resistance) affects ripple current handling and transient response. Lower ESR (23 mOhm) reduces heat generation and improves high-frequency filtering. Higher ESR (600 mOhm) is acceptable in low-frequency or low-current applications. ESR selection depends on circuit current and frequency requirements.

Q: Is RoHS3 compliance mandatory for all applications?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other regulated markets. For applications outside regulated regions or legacy systems, RoHS non-compliant parts (such as T491X687K006AH) may be acceptable. Verify regulatory requirements for your specific application.

Q: Are all substitute parts available in the same inventory quantities?

A: No. Inventory levels vary by part number and packaging format. T510X687M006ATE023 has the highest inventory (3863 Pcs), while the original T495X687M006ATE045 has 777 Pcs. Verify current inventory availability for production planning.

Q: Can I mix different substitute parts in the same assembly?

A: Yes, provided all parts meet the circuit's electrical requirements. However, for consistency and traceability, it is recommended to use a single part number per design revision. If substitution is necessary, document the change in design records.