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Tantalum Surface Mount Capacitors – Standard Tantalum

T491 Industrial Grade MnO

Series

Overview

The KEMET T491 Series, designed specifically for today’s highly

automated surface mount processes and equipment, is the

leading choice for surface mount designs. The T491 combines

KEMET’s proven solid tantalum technology, acclaimed and

respected throughout the world, with the latest in materials,

processes and automation, resulting in unsurpassed total

performance and value.

This product meets or exceeds the requirements of EIA Standard

535BAAC. The physical outline and dimensions of this series

conform to this global standard. Five low profile case sizes are

available in the T491 Series. The R/2012–12, S/3216–12 and

T/3528–12 case sizes have a maximum height of 1.2 mm. The

U/6032–15 size has a maximum height of 1.5 mm, and the

V/7343–20 has a maximum height of 2.0 mm.

The T491 standard terminations are 100% matte tin and provide

excellent wetting characteristics and compatibility with today's

surface mount solder systems. Tin/lead (Sn/Pb) terminations

are available upon request for any part number. Gold-plated

terminations are also available for use with conductive epoxy

attachment processes. The symmetrical terminations offer total

compliancy to provide the thermal and mechanical stress relief

required with today's technology. Lead frame attachments to the

tantalum pellet are made via a microprocessor-controlled welding

operation, and a high temperature silver epoxy adhesive system.

Standard packaging of these devices is tape and reel in

accordance with EIA 481–1. This system provides perfect

compatibility with all tape-fed placement units.

Benefits

•

Meets or exceeds EIA Standard 535BAAC

Taped and reeled per EIA 481–1

Symmetrical, compliant terminations

Optional gold-plated terminations

Laser-marked case

100% surge current test on C, D, E, U, V, X sizes

Halogen free epoxy

Capacitance 0.1

µF

to 1,000

µF

Tolerance ±10%, ±20%

Voltage 2.5 – 50 VDC

Extended range values

Low profile case sizes

RoHS Compliant and lead-free terminations

(See www.kemet.com for transition information)

• Operating temperature: -55ºC to +125ºC

Applications

Typical applications include decoupling and filtering in industrial

and automotive end applications such as DC/DC converters,

portable electronics, telecommunications, and control units.

Environmental Compliance

RoHS Compliant (6/6) according to Directive 2002/95/EC when ordered with 100% Sn solder.

One world. One KEMET

T2005_T491 • 10/8/2013

Tantalum Surface Mount Capacitors – Standard Tantalum

T491 Industrial Grade MnO

Series

SPICE

For a detailed analysis of specific part numbers, please visit www.kemet.com for a free download of KEMET's SPICE software.

The KEMET SPICE program is freeware intended to aid design engineers in analyzing the performance of these capacitors over

frequency, temperature, ripple, and DC bias conditions.

Ordering Information

Capacitor

Class

Tantalum

491

Series

Industrial

Case Size

A, B, C, D,

E, S, T, U,

V, X

157

Capacitance

Code (pF)

First two digits

represent

significant

figures. Third digit

specifies number

of zeros.

Capacitance

Tolerance

K = ±10%

M = ±20%

020

Voltage

2R5 = 2.5 V

003 = 3 V

004 = 4 V

006 = 6.3 V

010 = 10 V

016 = 16 V

020 = 20 V

025 = 25 V

035 = 35 V

050 = 50 V

Failure Rate/

Design

A = N/A

Lead Material

Packaging (C-Spec)

T = 100% Matte Tin (Sn) Blank = 7" Reel

Plated*

7280 = 13" Reel

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)

Performance Characteristics

Item

Operating Temperature

Rated Capacitance Range

Capacitance Tolerance

Rated Voltage Range

DF (120 Hz)

ESR (100 kHz)

Leakage Current

-55°C to 125°C

0.1 – 1,000 µF @ 120 Hz/25°C

K Tolerance (10%), M Tolerance (20%)

2.5 – 50 V

Refer to Part Number Electrical Specification Table

≤ 0.01 CV (µA) at rated voltage after 5 minutes

Performance Characteristics

T2005_T491 • 10/8/2013

Tantalum Surface Mount Capacitors – Standard Tantalum

T491 Industrial Grade MnO

Series

Qualification

Test

Endurance

Condition

Δ C/C

85°C @ rated voltage, 2,000 hours

125°C @ 2/3 rated voltage, 2,000 hours

DCL

ESR

Δ C/C

DCL

ESR

Δ C/C

MIL–STD–202, Method 107, Condition B, mounted, -55C° to

125° C, 1,000 cycles

DCL

ESR

Extreme temperature exposure at a

succession of continuous steps at +25ºC,

-55ºC, +25ºC, +85ºC, +125ºC, +25ºC.

+25°C

Δ C/C

DCL

IL*

Δ C/C

DCL

ESR

Δ C/C

DCL

Characteristics

Within ±10% of initial value

Within initial limits

Within 1.25 x initial limit

Within initial limits

Within ±10% of initial value

Within initial limits

Within 1.25 x initial limit

Within initial limits

Within ±5% of initial value

Within initial limits

Within 1.25 x initial limit

Within initial limits

-55°C

±10%

n/a

+85°C

±10%

1.5 x IL

10 x IL

+125°C

±20%

1.5 x IL

12 x IL

Storage Life

125°C @ 0 volts, 2,000 hours

Thermal Shock

Temperature Stability

Within ±5% of initial value

Within initial limits

Within ±10% of initial value

Within initial limits

Surge Voltage

25°C and 85°C, 1.32 x rated voltage 1,000 cycles

(125°C, 1.2 x rated voltage).

Mechanical Shock/Vibration

*IL = Initial limit

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

T2005_T491 • 10/8/2013

Tantalum Surface Mount Capacitors – Standard Tantalum

T491 Industrial Grade MnO

Series

Electrical Characteristics

ESR vs. Frequency

100

T491C336M025AT_IMP

T491D476M025AT_IMP

Capacitance vs. Frequency

1,000

T491C336M025AT

T491D476M025AT

T491X107M025AT

Impedance, ESR (Ohms)

T491X107M025AT_IMP

T491C336M025AT_ESR

T491D476M025AT_ESR

T491X107M025AT_ESR

Capacitance (µF)

100

0.1

0.01

100

1,000

10,000

Frequency (Hz)

100,000

1,000,000

10,000,000

100

1,000

10,000

Frequency (Hz)

100,000

1,000,000

10,000,000

Dimensions – Millimeters (Inches)

Metric will govern

Termination

cutout at

KEMET’s

option,

either end

Case Size

KEMET

EIA

1.6 ±0.2

(0.063 ±0.008)

2.8 ±0.2

(0.110 ±0.008)

3.2 ±0.3

(0.126 ±0.012)

4.3 ±0.3

(0.169 ±0.012)

4.3 ±0.3

(0.169 ±0.012)

6.0± 0.3

(0.236 ±0.012)

1.6 ±0.2

(0.063 ±0.008)

2.8 ±0.2

(0.110 ±0.008)

3.2 ±0.2

(0.110 ±0.008)

4.3 ±0.3

(0.169 ±0.012)

Component

1.6 ±0.2

(0.063 ±0.008)

1.9 ±0.2

(0.075 ±0.008)

2.5 ±0.3

(0.098 ±0.012)

2.8 ±0.3

(0.110 ±0.012)

4.0 ±0.3

(0.157 ±0.012)

3.6 ± 0.2

(0.142 ±0.008)

1.2 (.047)

1.5 (.059)

2.0 (.079)

3.2 ±0.2

3216–18 (0.126 ±0.008)

3.5 ±0.2

3528–21 (0.138 ±0.008)

6.0

6032–28 (0.236±0.3

±0.03)

7.3 ±0.3

7343–31 (0.287 ±0.012)

7.3

7343–43 (0.287 ±0.3

±0.012)

7.3 ±0.3

7360-38 (0.287 ±0.012)

3.2 ±0.2

3216–12 (0.126 ±0.008)

3.5 ±0.2

3528–12

(0.138 ±0.008)

6.0 ±0.3

6032–15 (0.236 ±0.012)

7.3

7343–20 (0.287 ±0.3

±0.012)

F* ±0.1 S* ±0.3 B* ±0.15

±(.004) ±(.012) (Ref) ±.006

1.2 (.047)

2.2 (.087)

2.4 (.094)

4.1 (.161)

1.2 (.047)

2.2 (.087)

2.4 (.094)

0.8 (.031)

1.3 (.051)

0.8 (.031)

1.3 (.051)

0.4 (.016)

0.5 (.020)

n/a

X (Ref)

0.10 ±0.10

(0.004 ±0.004)

0.10 ±0.10

(0.004 ±0.004)

0.10 ±0.10

(0.004 ±0.004)

0.10 ±0.10

(0.004 ±0.004)

0.10 ±0.10

(0.004 ±0.004)

0.10 ± 0.10

(.004 ± .004)

0.05 (.002)

P (Ref)

0.4 (.016)

0.5 (.020)

0.9 (.035)

1.7 (.067)

n/a

R (Ref)

0.4 (.016)

1.0 (.039)

n/a

T (Ref)

0.13 (.005)

A (Min) G (Ref) E (Ref)

0.8 (.31)

1.1 (.043) 1.3 (.051)

0.13 (.005) 1.1 (0.043) 1.8 (.071) 2.2 (.087)

0.13 (.005)

2.5(.098)

3.8 (.150)

0.8 (.031)

1.1 (.043)

2.5(.098)

3.8 (.150)

2.8 (.110) 2.4 (.094)

3.5 (.138) 3.5 (.138)

1.1 (.043) 1.3 (.051)

1.8 (.071) 2.2 (.087)

2.8 (.110) 2.4 (.094)

3.5 (.138) 3.5 (.138)

Notes: (Ref) – Dimensions provided for reference only. No dimensions are provided for B, P or R because low profile cases do not have a bevel or a notch.

* MIL–PRF–55365/8 specified dimensions

T2005_T491 • 10/8/2013

Tantalum Surface Mount Capacitors – Standard Tantalum

T491 Industrial Grade MnO

Series

Table 1 – Ratings & Part Number Reference

Rated

Voltage

VDC

2.5

VDC

Rated

Cap

µF

100

220

3.3

4.7

6.8

100

150

220

µF

Case Code/

Case Size

KEMET/EIA

T/3528-12

D/7343-31

A/3216-18

S/3216-12

B/3528-21

A/3216-18

S/3216-12

B/3528-21

A/3216-18

T/3528-12

S/3216-12

C/6032-28

B/3528-21

A/3216-18

T/3528-12

S/3216-12

C/6032-28

U/6032-15

B/3528-21

A/3216-18

T/3528-12

C/6032-28

U/6032-15

B/3528-21

A/3216-18

T/3528-12

D/7343-31

C/6032-28

U/6032-15

B/3528-21

A/3216-18

D/7343-31

C/6032-28

U/6032-15

B/3528-21

A/3216-18

T/3528-12

D/7343-31

U/6032-15

V/7343-20

C/6032-28

B/3528-21

V/7343-20

B/3528-21

C/6032-28

D/7343-31

W/7343-15

KEMET/EIA

KEMET Part

Number

(See below for

part options)

T491T107(1)2R5A(2)

T491D227(1)2R5A(2)

T491A336(1)003A(2)

T491A335(1)004A(2)

T491A475(1)004A(2)

T491A685(1)004A(2)

T491S685(1)004A(2)

T491B106(1)004A(2)

T491A106(1)004A(2)

T491S106(1)004A(2)

T491B156(1)004A(2)

T491A156(1)004A(2)

T491T156(1)004A(2)

T491S156(1)004A(2)

T491C226(1)004A(2)

T491B226(1)004A(2)

T491A226(1)004A(2)

T491T226(1)004A(2)

T491S226(1)004A(2)

T491C336(1)004A(2)

T491U336(1)004A(2)

T491B336(1)004A(2)

T491A336(1)004A(2)

T491T336(1)004A(2)

T491C476(1)004A(2)

T491U476(1)004A(2)

T491B476(1)004A(2)

T491A476(M)004A(2)

T491T476(M)004A(2)

T491D686(1)004A(2)

T491C686(1)004A(2)

T491U686(1)004A(2)

T491B686(1)004A(2)

T491A686(1)004A(2)

T491D107(1)004A(2)

T491C107(1)004A(2)

T491U107(1)004A(2)

T491B107(M)004A(2)

T491A107(M)004A(2)

T491T107(M)004A(2)

T491D157(1)004A(2)

T491U157(1)004AT

T491V157(1)004A(2)

T491C157(1)004A(2)

T491B157(M)004A(2)

T491V227(1)004A(2)

T491B227(M)004A(2)

T491C227(1)004AT

T491D227(1)004AT

T491W227(1)004AT

(See below for

part options)

Leakage

µA @ +20ºC

Maximum/

5 Minutes

2.5

5.5

1.0

0.5

0.6

0.9

1.3

1.9

2.7

4.0

6.0

8.8

µA @ +20ºC

Maximum/

5 Minutes

% @ +20ºC

120 Hz

Maximum

24.0

8.0

6.0

10.0

6.0

10.0

6.0

8.0

6.0

12.0

6.0

30.0

8.0

10.0

8.0

30.0

8.0

12.0

8.0

18.0

15.0

8.0

% @ +20ºC

120 Hz

Maximum

ESR

Ω @ +20ºC

100 kHz

Maximum

3.9

0.3

4.0

8.0

6.0

15.0

3.5

6.0

15.0

3.5

4.0

5.0

15.0

1.8

3.5

4.0

5.0

10.0

1.8

3.5

4.0

5.0

1.8

3.0

2.5

6.0

0.8

1.6

1.8

3.5

4.0

0.8

1.2

1.8

0.9

4.0

5.0

0.8

1.3

0.7

1.2

2.0

0.7

0.5

1.2

0.8

Ω @ +20ºC

100 kHz

Maximum

Maximum Allowable

Ripple Current

(mA)

100 kHz

25ºC

134

707

137

112

156

112

156

137

118

247

156

137

118

247

224

156

137

118

247

224

168

173

108

433

262

224

156

137

433

303

224

307

137

118

433

263

423

303

206

423

412

303

433

474

(mA)

100 kHz

25ºC

(mA)

100 kHz

+85ºC

121

636

123

101

140

101

140

123

106

222

140

123

106

222

202

140

123

106

222

202

151

156

390

236

202

140

123

390

273

202

276

123

106

390

237

381

273

185

381

371

273

390

427

(mA)

100 kHz

+85ºC

(mA)

100 kHz

+125ºC

283

173

105

173

121

123

173

105

169

121

169

165

121

173

190

(mA)

100 kHz

+125ºC

Moisture

Sensitivity

Reflow Temperature

≤ 260 ºC

Reflow Temperature

≤ 260 ºC

Rated

Voltage

Rated

Cap

Case Code/

Case Size

KEMET Part

Number

Leakage

ESR

Maximum Allowable

Ripple Current

Moisture

Sensitivity

(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 detail.

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.

T2005_T491 • 10/8/2013

Roll Over for

Order Info.