Datasheet

2© 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
2
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO
2
K-SIM
Foradetailedanalysisofspecicpartnumbers,pleasevisitksim.kemet.comtoaccessKEMET’sK-SIMsoftware.KEMET
K-SIM is designed to simulate behavior of components with respect to frequency, ambient temperature, and DC bias levels.
Ordering Information
T 491 X 157 K 020 A T
Capacitor
Class
Series
Case
Size
Capacitance
Code (pF)
Capacitance
Tolerance
Rated
Voltage
(VDC)
Failure Rate/
Design
Termination Finish
Packaging
(C-Spec)
T =
Tantalum
Industrial A, B,
C, D,
E, M,
S, T,
U, V,
W, X
First two digits
represent
signicant
gures.Third
digitspecies
number of
zeros.
K = ±10%
M = ±20%
2R5 = 2.5
003 = 3
004 = 4
006 = 6.3
010 = 10
016 = 16
020 = 20
025 = 25
035 = 35
050 = 50
A =
N/A
T = 100% Matte tin (Sn)-plated
H = Standard solder coated
(SnPb 5% Pb minimum)
G = Gold-plated
(A, B, C, D, X only)
N = Non-magnetic 100% tin (Sn)
M = Non-magnetic (SnPb)
Blank = 7" reel
7280 = 13" reel
Performance Characteristics
Item Performance Characteristics
Operating Temperature −55°Cto125°C
Rated Capacitance Range 0.1–1,000µFat120Hz/25°C
Capacitance Tolerance K tolerance (10%), M tolerance (20%)
Rated Voltage Range 2.5 – 50 V
DF (120 Hz) RefertoPartNumberElectricalSpecicationTable
ESR (100 kHz) RefertoPartNumberElectricalSpecicationTable
Leakage Current ≤0.01CV(µA)atratedvoltageafter5minutes