TAP685M050GSB Equivalent & Substitute Parts

Part Overview

The TAP685M050GSB is a 6.8 µF conformal coated tantalum capacitor rated for 50 V operation in a radial through-hole package. This component is designed for general-purpose applications requiring reliable energy storage with environmental protection. The part is currently active in production with full inventory availability. Substitute parts may be required due to design optimization, tolerance requirements, or supply chain considerations while maintaining electrical and mechanical compatibility.

Substiute Parts

TAP685M050GSB

KYOCERA AVXIn Stock: 805TAP685M050GSB Datasheet

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TAP685K050GSB

KYOCERA AVXIn Stock: 2150TAP685K050GSB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The TAP685K050GSB qualifies as a direct substitute for the TAP685M050GSB based on the following substitution criteria:

Matching Parameters (Electrical Compatibility):

• Capacitance: 6.8 µF (identical)
• Voltage Rating: 50 V (identical)
• ESR: 2 Ohm (identical)
• Operating Temperature Range: -55°C to 125°C (identical)
• Lifetime @ Temperature: 1000 Hrs @ 85°C (identical)

Matching Parameters (Mechanical Compatibility):

• Type: Conformal Coated Tantalum (identical)
• Mounting Type: Through Hole Radial (identical)
• Package / Case: Radial (identical)
• Size Code: H (identical)
• Physical Dimensions: 0.276" Dia (7.00mm), Height 0.472" (12.00mm), Lead Spacing 0.125" (3.18mm) (identical)

Tolerance Difference: The substitute part features ±10% tolerance compared to the main part's ±20% tolerance. This represents a tighter tolerance specification, making the TAP685K050GSB suitable for applications requiring improved capacitance accuracy while maintaining all other electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the TAP685M050GSB and TAP685K050GSB are active production components from KYOCERA AVX with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on tolerance requirements:

• TAP685M050GSB (±20% tolerance): Suitable for general-purpose applications where standard tolerance specifications are acceptable.
• TAP685K050GSB (±10% tolerance): Suitable for applications requiring tighter capacitance accuracy and improved performance consistency.

Both parts are mechanically and electrically interchangeable in through-hole radial configurations. The substitute part offers improved tolerance performance without any compromise to electrical characteristics, voltage rating, temperature range, or physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can TAP685K050GSB replace TAP685M050GSB in existing designs?

A: Yes. The TAP685K050GSB is a direct mechanical and electrical substitute. All physical dimensions, electrical ratings, and operating parameters are identical. The only difference is the tighter ±10% tolerance specification in the substitute part.

Q: What is the significance of the tolerance difference between ±20% and ±10%?

A: Tolerance specifies the allowable deviation from the nominal 6.8 µF capacitance value. The ±20% tolerance allows capacitance values between 5.44 µF and 8.16 µF. The ±10% tolerance restricts values to between 6.12 µF and 7.48 µF. Tighter tolerance provides more predictable circuit behavior in applications sensitive to capacitance variation.

Q: Are the physical packages identical?

A: Yes. Both parts use the same radial through-hole package with Size Code H, identical diameter (0.276" / 7.00mm), height (0.472" / 12.00mm), and lead spacing (0.125" / 3.18mm). They are pin-compatible and occupy the same PCB footprint.

Q: Do both parts meet the same compliance standards?

A: Yes. Both TAP685M050GSB and TAP685K050GSB are ROHS3 compliant and REACH unaffected, meeting the same environmental and regulatory requirements.

Q: What is the ESR specification and why is it important?

A: ESR (Equivalent Series Resistance) is 2 Ohm for both parts. This parameter affects the capacitor's ability to supply current and influences circuit performance in high-frequency applications. Identical ESR values ensure equivalent performance characteristics.

Q: Are there any temperature or lifetime differences?

A: No. Both parts operate across the identical temperature range (-55°C to 125°C) and share the same lifetime specification of 1000 Hrs @ 85°C.