T520X687M006ATE018 Equivalent & Substitute Parts

Part Overview

The T520X687M006ATE018 is a 680 µF molded tantalum polymer capacitor manufactured by KEMET in the KO-CAP® T520 series. This surface mount component operates at 6.3 V rated voltage with an equivalent series resistance of 18 mOhm at 100 kHz. The part is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical characteristics and mechanical compatibility are maintained across the specified parameter set, enabling design flexibility and supply chain continuity.

Substiute Parts

T520X687M006ATE018

KEMETIn Stock: 5416T520X687M006ATE018 Datasheet

Current PartRFQ

T520Y687M006ATE018

KEMETIn Stock: 3400T520Y687M006ATE018 Datasheet

DirectRFQ

6TPE680MI

Panasonic Electronic ComponentsIn Stock: 32176TPE680MI Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the T520X687M006ATE018 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Capacitance: 680 µF (exact match required)
• Voltage Rating: 6.3 V (exact match required)
• ESR: 18 mOhm @ 100 kHz (exact match required)
• Package / Case: 2917 (7343 Metric) (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Operating Temperature Range: -55°C ~ 105°C (exact match required)
• Lifetime @ Temp.: 2000 Hrs @ 105°C (exact match required)
• Type: Molded (exact match required)
• Tolerance: ±20% (exact match required)

Compliance Parameters:

• RoHS3 Compliant status
• ECCN: EAR99
• HTSUS: 8532.21.0050

Identified substitutes maintain all critical electrical and mechanical parameters. Variations in physical height dimensions and manufacturer size codes do not affect functional equivalence when all electrical specifications and package footprint requirements are preserved.

Parameter Comparison

Engineering Selection Recommendations

All three parts—T520X687M006ATE018, T520Y687M006ATE018, and 6TPE680MI—are Active status products with RoHS3 compliance and identical electrical specifications. Selection between these parts is based on availability, packaging format, and physical height constraints.

T520X687M006ATE018 (KEMET): Primary specification with maximum seated height of 0.169" (4.30mm). Use when height clearance permits and KEMET sourcing is preferred.

T520Y687M006ATE018 (KEMET): KEMET alternative with reduced seated height of 0.157" (4.00mm). Use when space-constrained PCB designs require lower profile components while maintaining KEMET supply chain.

6TPE680MI (Panasonic): Cross-manufacturer substitute with seated height of 0.157" (4.00mm) and Panasonic POSCAP™ TPE series designation. Use when Panasonic sourcing is required or when supply availability from KEMET is limited. Packaging format is Cut Tape (CT) & Digi-Reel® versus Tape & Reel (TR) for KEMET parts.

All parts maintain identical electrical performance and thermal characteristics. Selection does not impact circuit functionality when all specified parameters are matched.

Frequently Asked Questions (FAQ)

Q: Can T520Y687M006ATE018 replace T520X687M006ATE018 in existing designs?

A: Yes. Both parts share identical electrical specifications (680 µF, 6.3 V, 18 mOhm ESR, operating temperature -55°C to 105°C). The primary difference is seated height: T520X is 0.169" (4.30mm) while T520Y is 0.157" (4.00mm). Verify PCB height clearance before substitution.

Q: Is the Panasonic 6TPE680MI electrically equivalent to the KEMET T520X687M006ATE018?

A: Yes. The 6TPE680MI maintains all critical electrical parameters: 680 µF capacitance, 6.3 V rating, 18 mOhm ESR at 100 kHz, and identical operating temperature range (-55°C to 105°C). Both are RoHS3 compliant with 2000 hour lifetime at 105°C.

Q: What is the difference in packaging between these parts?

A: KEMET parts (T520X and T520Y) are supplied in Tape & Reel (TR) format. The Panasonic 6TPE680MI is supplied in Cut Tape (CT) & Digi-Reel® format. Packaging selection depends on assembly equipment compatibility and order quantity requirements.

Q: Are there height restrictions when using the lower-profile alternatives?

A: The T520Y687M006ATE018 and 6TPE680MI both have a maximum seated height of 0.157" (4.00mm), compared to 0.169" (4.30mm) for the T520X687M006ATE018. Verify PCB design clearance specifications before selecting the lower-profile option.

Q: Do all three parts meet the same compliance standards?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8532.21.0050. Moisture sensitivity level is 3 (168 Hours) for KEMET parts.

Q: What is the tolerance specification for these capacitors?

A: All three parts have a tolerance of ±20%, meaning the actual capacitance value will be within 680 µF ± 136 µF (544 µF to 816 µF).