Introducing the First 35 Volt Rated Polymer Tantalum Capacitor


  • Overview
  • Features
  • Dimensions
  • Specifications
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T521 Series CapacitorDesignated as the T521 Series, KEMET's initial offering of this new series includes the popular low profile V Case Size (7.3mm x 4.3mm x 1.9mm) with a capacitance rating of 15µF and maximum ESR ratings of 125 milliohms.

By overcoming voltage limitations through advances in materials and manufacturing processes, KEMET has successfully constructed and qualified the first polymer tantalum capacitors suitable for applications of up to 25V of continuous duty. Military, aerospace, power supplies and industrial applications will all benefit from this advancement.    Datasheet

In addition, these devices have demonstrated surge voltage handling capabilities in excess of 46V. This increase in voltage rating now provides designers working with higher voltage applications, such as 20V to 24V power input rails, with the option of incorporating polymer tantalum technology into new designs as opposed to settling for capacitance technologies that do not offer similar performance advantages.

Future releases will include higher case heights (7.3mm x 4.3mm x 3.0mm) with target capacitance values of 22µF and 33µF as well as smaller footprints (3.5mm x 2.8mm x 2.0mm) targeting capacitance values of 6.8µF and less.


Key Features
  • High Voltage (20V - 35V)
  • 15µF Capacitance Value
  • High Ripple Current Capability
  • Volumetrically Efficient
  • Stable Temperature Characteristics
  • Safe Failure Mode
  • Low ESR (125mOhm)

  Datasheet - 35V Polymer Tantalum Capacitor

RoHS Compliant


T521 Series Dimensions
T521 Series Dimensions


Item
Performance Characteristics
Operating Temperature
-55°C to 125°C
Rated Capacitance Range
15µF - 47µF @ 120 Hz/25°C
Capacitance Tolerance
M Tolerance (20%)
Rated Voltage Range
20V - 35V
Dissipation Factor (DF)
± 10%
Leakage Current
± 0.1CV (µA) at Rated Voltage after 5 minutes
Endurance
105°C @ Rated Voltage, 2000 Hrs.
125°C @ 2/3 Rated Voltage, 2000 Hrs.
ΔC/C
Within -20/+10 of initial value
DF
± Initial Limit
DCL
IL @ 105°C, 2x IL @ 125°C
ESR
2x Initial Limit
Humidity
60°C, 90% RH, 500Hr, No Load
ΔC/C
Within -5%/+35% of initial value
DF
± Initial Limit
DCL
Within 3.0 x initial limit
Temperature Stability
Extreme temperature exposure at a succession of continuous steps at +25 C, -55 C, +25 C, +85 C, +125 C, +25 C.
 
+25°C
-55°C
+85°C
+125°C
ΔC/C
IL*
+/-20%
+/-20%
+/-30%
DF
IL
IL
1.2 x IL
1.5 x IL
DCL
IL
n/a
10 x IL
10 x IL
Surge Voltage
105°C, 1.32 x Rated Voltage 1000 cycles
ΔC/C
Within -20/+10 of initial value
DF
Within initial limits
DCL
Within initial limits
ESR
Within initial limits
  * IL = Initial Limit


Digi-Key P/N
Packaging
Package
Capacitance
Voltage-
Rated
Tolerance
Lifetime @ Temp.
Tape/Reel
7343-20 (EIA)
15µF
35V
±20%
2000 Hrs @ 125°C
Cut Tape
Digi-Reel®