Datasheet

5© 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
5
Tantalum Surface Mount Capacitors – Standard Tantalum
T491 Industrial Grade MnO
2
Rated
Voltage
Rated
Cap
Case
Code/
Case Size
KEMET Part
Number
DC
Leakage
DF ESR
Maximum Allowable
Ripple Current
Maximum
Operating
Temp
MSL
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA at +20°C
Maximum/
5 Minutes
% at +20°C
120 Hz
Maximum
Ω at +20°C
100 kHz
Maximum
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
°C
Reow Temp
≤ 260 °C
2.5 100 T/3528-12 T491T107(1)2R5A(2) 2.5 24.0 3.9 134 121 54 125 1
2.5 220 D/7343-31 T491D227(1)2R5A(2) 5.5 8.0 0.3 707 636 283 125 1
3 33 A/3216-18 T491A336(1)003A(2) 1.0 6.0 4.0 137 123 55 125 1
4 3.3 A/3216-18 T491A335(1)004A(2) 0.5 6.0 8.0 97 87 39 125 1
4 4.7 A/3216-18 T491A475(1)004A(2) 0.5 6.0 8.0 97 87 39 125 1
4 6.8 A/3216-18 T491A685(1)004A(2) 0.5 6.0 6.0 112 101 45 125 1
4 6.8 S/3216-12 T491S685(1)004A(2) 0.5 6.0 15.0 63 57 25 125 1
4 10 B/3528-21 T491B106(1)004A(2) 0.5 6.0 3.5 156 140 62 125 1
4 10 A/3216-18 T491A106(1)004A(2) 0.5 6.0 4.5 129 116 52 125 1
4 10 S/3216-12 T491S106(1)004A(2) 0.5 6.0 15.0 63 57 25 125 1
4 15 B/3528-21 T491B156(1)004A(2) 0.6 6.0 3.5 156 140 62 125 1
4 15 A/3216-18 T491A156(1)004A(2) 0.6 6.0 4.0 137 123 55 125 1
4 15 T/3528-12 T491T156(1)004A(2) 0.6 6.0 5.0 118 106 47 125 1
4 15 S/3216-12 T491S156(1)004A(2) 0.6 10.0 15.0 63 57 25 125 1
4 22 C/6032-28 T491C226(1)004A(2) 0.9 6.0 1.8 247 222 99 125 1
4 22 B/3528-21 T491B226(1)004A(2) 0.9 6.0 3.0 168 151 67 125 1
4 22 A/3216-18 T491A226(1)004A(2) 0.9 6.0 3.5 137 123 55 125 1
4 22 T/3528-12 T491T226(1)004A(2) 0.9 6.0 5.0 118 106 47 125 1
4 22 S/3216-12 T491S226(1)004A(2) 0.9 10.0 10.0 77 69 31 125 1
4 33 C/6032-28 T491C336(1)004A(2) 1.3 6.0 1.8 247 222 99 125 1
4 33 U/6032-15 T491U336(1)004A(2) 1.3 6.0 1.8 224 202 90 125 1
4 33 B/3528-21 T491B336(1)004A(2) 1.3 6.0 2.5 184 166 74 125 1
4 33 A/3216-18 T491A336(1)004A(2) 1.3 6.0 3.0 137 123 55 125 1
4 33 T/3528-12 T491T336(1)004A(2) 1.3 8.0 5.0 118 106 47 125 1
4 47 C/6032-28 T491C476(1)004A(2) 1.9 6.0 1.6 262 236 105 125 1
4 47 U/6032-15 T491U476(1)004A(2) 1.9 6.0 1.8 224 202 90 125 1
4 47 B/3528-21 T491B476(1)004A(2) 1.9 6.0 2.0 206 185 82 125 1
4 47 A/3216-18 T491A476(1)004A(2) 1.9 10.0 2.5 173 156 69 125 1
4 47 T/3528-12 T491T476(M)004A(2) 1.9 12.0 6.0 108 97 43 125 1
4 68 D/7343-31 T491D686(1)004A(2) 2.7 6.0 0.8 433 390 173 125 1
4 68 C/6032-28 T491C686(1)004A(2) 2.7 6.0 1.5 271 244 108 125 1
4 68 U/6032-15 T491U686(1)004A(2) 2.7 6.0 1.8 224 202 90 125 1
4 68 B/3528-21 T491B686(1)004A(2) 2.7 6.0 1.8 217 195 87 125 1
4
68 A
/3216-18 T491A686(1)004A(2) 2.7 30.0 4.0 137 123 55 125 1
4 100 D/7343-31 T491D107(1)004A(2) 4.0 8.0 0.8 433 390 173 125 1
4 100 C/6032-28 T491C107(1)004A(2) 4.0 8.0 1.2 303 273 121 125 1
4 100 U/6032-15 T491U107(1)004A(2) 4.0 10.0 1.8 224 202 90 125 1
4 100 B/3528-21 T491B107(1)004A(2) 4.0 8.0 0.9 307 276 123 125 1
4 100 A/3216-18 T491A107(M)004A(2) 4.0 30.0 4.0 137 123 55 125 1
4 100 T/3528-12 T491T107(M)004A(2) 4.0 30.0 5.0 118 106 47 125 1
4 150 D/7343-31 T491D157(1)004A(2) 6.0 8.0 0.8 433 390 173 125 1
4 150 U/6032-15 T491U157(1)004AT 6.0 8.0 1.3 263 237 105 125 1
4 150 V/7343-20 T491V157(1)004A(2) 6.0 8.0 0.7 423 381 169 125 1
4 150 C/6032-28 T491C157(1)004A(2) 6.0 8.0 1.2 303 273 121 125 1
4 150 B/3528-21 T491B157(1)004A(2) 6.0 12.0 2.0 206 185 82 125 1
4 220 V/7343-20 T491V227(1)004A(2) 8.8 8.0 0.7 423 381 169 125 1
VDC at 85°C µF KEMET/EIA
(See below for
part options)
µA at +20°C
Maximum/
5 Minutes
% at +20°C
120 Hz
Maximum
Ω at +20°C
100 kHz
Maximum
mA at
+25°C
100 kHz
mA at
+85°C
100 kHz
mA at
+125°C
100 kHz
°C
Reow Temp
≤ 260 °C
Rated
Voltage
Rated
Cap
Case Code/
Case Size
KEMET Part
Number
DC
Leakage
DF ESR
Maximum Allowable
Ripple Current
Maximum
Operating
Temp
MSL
Table 1 – Ratings & Part Number Reference
(1) To complete KEMET part number, insert M for ±20% or K for ±10%. Designates Capacitance Tolerance.
(2) To complete KEMET part number, insert T = 100% Matte Tin (Sn)-plated, G = Gold-plated, H = Standard solder coated (SnPb 5% Pb minimum), N =
Non-magnetic 100% Tin (Sn), M = Non-magnetic (SnPb). Designates Termination Finish.
Refer to Ordering Information for additional details.
Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitution will
be marked with the higher voltage rating. Substitutions can include better than series.