Datasheet

3© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard T2005_T491 • 3/11/2019
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
3
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO
2
Qualication
Test Condition Characteristics
Endurance
85°Catratedvoltage,2,000hours
125°Cat2/3ratedvoltage,2,000hours
ΔC/C Within ±10% of initial value
DF Within initial limits
DCL Within 1.25 x initial limit
ESR Within initial limits
Storage Life 125°Cat0volts,2,000hours
ΔC/C Within ±10% of initial value
DF Within initial limits
DCL Within 1.25 x initial limit
ESR Within initial limits
Thermal Shock
MIL-STD-202,Method107,ConditionB,mounted,−55°C
to125°C,1,000cycles
ΔC/C Within ±5% of initial value
DF Within initial limits
DCL Within 1.25 x initial limit
ESR Within initial limits
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
ΔC/C IL* ±10% ±10% ±20%
DF IL IL 1.5 x IL 1.5 x IL
DCL IL N/A 10 x IL 12 x IL
Surge Voltage
85°C,1.32xratedvoltage1,000cycles
(125°C,1.2xratedvoltage).
ΔC/C Within ±5% of initial value
DF Within initial limits
DCL Within initial limits
ESR Within initial limits
Mechanical Shock/
Vibration
MIL-STD-202, Method 213, Condition I, 100 G peak
MIL-STD-202, Method 204, Condition D, 10 Hz to
2,000 Hz, 20 G peak
ΔC/C Within ±10% of initial value
DF Within initial limits
DCL Within initial limits
*IL = Initial limit