Is there a pin-compatible replacement for 6TPE680MI?

Yes, parts like Panasonic's 6TPB470M are pin-compatible in the same D4 package. However, they are not electrically identical, featuring different capacitance and ESR values that must be verified for your application.

What risks should I check before replacing 6TPE680MI?

Key risks include increased voltage ripple due to higher ESR, and reduced bulk capacitance affecting power delivery network (PDN) stability. Always verify performance in your specific circuit before production.

6TPE680MI Alternatives, Datasheet & Cross Reference | PANASONIC

6TPE680MI is a 680µF 6.3V low-ESR polymer tantalum capacitor from Panasonic in a D4 package, used in high-frequency decoupling. Finding a direct drop-in replacement requires matching capacitance, ESR, and package.

AI replacement insight

Electrical riskhigh

Lower capacitance and higher ESR can affect PDN stability and filtering performance.

Package risklow

Several alternatives exist in the same D4 package.

Can it be replaced directly?

No direct, 1-to-1 replacement was found. All viable candidates have different electrical parameters that require engineering review.

Best replacement path

Evaluate other Panasonic POSCAPs in the D4 package, like 6TPB470M, accepting a downgrade in capacitance and ESR after validation.

Main risk

The primary risk is circuit instability or failure due to using a capacitor with lower capacitance and higher ESR.

Recommended alternatives

A potential alternative in the same package, but with lower capacitance and higher ESR.

View details

Alternative comparison matrix

Feature / factor	6TPE680MI	6TPB470M	6TPB330M	Compatibility / risk
Package	D4	D4	D4	D4 — Same package and pinout.; 6TPB330M: Same package and pinout.
Voltage	6.3V	6.3V	6.3V	6.3V — Voltage rating is identical.; 6TPB330M: Voltage rating is identical.
Capacitance	680µF	470µF	330µF	470µF / 330µF — Lower capacitance, may affect bulk decoupling.; 6TPB330M: Significantly lower capacitance.
Esr	18mΩ	35mΩ	40mΩ	35mΩ / 40mΩ — Higher ESR, may increase voltage ripple.; 6TPB330M: Significantly higher ESR.
Series	TPE Series	TPB Series	-	TPB Series — Different series, check datasheet for subtle differences.

Application & sourcing insights

Questions & answers

The closest potential alternative is Panasonic's 6TPB470M, which shares the same package and voltage but has lower capacitance (470µF) and higher ESR. All alternatives require careful engineering review.