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Standard MnO

Tantalum Surface Mount Capacitors

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

Optical Gold-Plated Terminations

Laser-marked Case

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

Halogen Free Epoxy

Capacitance: 0:1µF to 1000µF

Tolerance: ±10%, ±20%

Voltage: 2.5-50 VDC

Extended Range Values

Low Profile Case Sizes

RoHS Compliance & 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

*When ordered with 100% Sn Solder

RoHS Compliant (6/6)* according to Directive 2002/95/EC

SPICE

For a detailed analysis of specific part numbers, please visit 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.

One WORLD

One Brand

One Strategy

One Focus

One Team

One KEMET

T2005-1 • 12/27/2010

Standard MnO

Tantalum Surface Mount Capacitors – T491 Industrial Grade MnO

Series

Ordering Information

Capacitor

Class

Tantalum

491

Series

Industrial

Case Size

A = 3216-18

B = 3528-21

C = 6032-28

D = 7343-31

E = 7260-38

R = 2012-12

S = 3216-12

T = 3528-12

U = 6032-15

V = 7343-20

X = 7343-43

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 = 2.5V

003 = 3V

004 = 4V

006 = 6.3V

010 = 10V

016 = 16V

020 = 20V

025 = 25V

035 = 35V

050 = 50V

Failure Rate/

Design

A = N/A

Z = N/A

Lead Material

T = 100% Matte Tin

(Sn) Plated

H = Standard Solder

Coated (SnPb 5%

Pb minimum)

G = Gold Plated (A, B,

C, D, X only)

XXXX

Packaging (C-Spec)

Blank = 7" Reel

7280 = 13" Reel

Performance Characteristics

Item

Operating Temperature

Rated Capacitance Range

Capacitance Tolerance

Rated Voltage Range

DF(120Hz)

ESR (100kHz)

Leakage Current

-55°C to 125°C

0.1µF - 1000µF @ 120 Hz/25°C

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

2.5V - 50V

Refer to Part Number Electrical Specification Table

≤ 0.01CV (µA) at Rated Voltage after 5 minutes

Performance Characteristics

T2005-1 • 12/27/2010

Standard MnO

Tantalum Surface Mount Capacitors – T491 Industrial Grade MnO

Series

Qualification

Test

Endurance

Condition

ΔC/C

85°C @ Rated Voltage, 2000 Hrs.

125°C @ 2/3 Rated Voltage, 2000 Hrs.

DCL

ESR

ΔC/C

DCL

ESR

ΔC/C

Mil-Std-202, Method 107, Condition B, mounted, -55C° to

125° C, 1000 cycles

DCL

ESR

Extreme temperature exposure at a

succession of continuous steps at +25ºC,

-55ºC, +25ºC, +85ºC, +125ºC, +25ºC.

+25°C

ΔC/C

DCL

IL*

ΔC/C

DCL

ESR

ΔC/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, 2000 Hrs.

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 1000 cycles (125°C,

1.2 x Rated Voltage)

Mechanical Shock/Vibration

*IL = Initial Limit

Mil-Std-202, Meth. 213, Cond. I, 100G Peak

Mil-Std-202, Meth. 204, Cond. D, 10Hz to 2000Hz, 20G

Peak

Certification

AEC-Q200

T2005-1 • 12/27/2010

Standard MnO

Tantalum Surface Mount Capacitors – 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

T491D476M025AT_ESR

T491X107M025AT_ESR

Capacitance (µF)

T491C336M025AT_ESR

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

3216-18

Component

1.6 ± 0.2

(.063 ± .008)

2.8 ± 0.2

(.110 ± .008)

3.2 ± 0.3

(.126 ± .012)

4.3 ± 0.3

(.169 ± .012)

4.3 ± 0.3

(.169 ± .012)

6.0± 0.3

(.236 ± .012)

1.3 ± 0.2

(.051 ± .008)

1.6 ± 0.2

(.063 ± .008)

2.8 ± 0.2

(.110 ± .008)

3.2 ± 0.2

(.110 ± .008)

4.3 ± 0.3

(.169 ± .012)

1.6 ± 0.2

(.063 ± .008)

1.9 ± 0.2

(.075 ± .008)

2.5 ± 0.3

(.098 ± .012)

2.8 ± 0.3

(098 ± .012)

4.0 ± 0.3

(.157 ± .012)

3.6 ± 0.2

(.142 ± .008)

1.2 (.047) max

1.5 (.059) max

1.9 (.075) max

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)

0.9 (.035)

1.2 (.047)

2.2 (.087)

2.4 (.094)

0.8 (.031)

1.3 (.051)

0.5 (.020)

0.8 (.031)

1.3 (.051)

0.4 (.016)

0.5 (.020)

n/a

X (Ref)

0.10 ± 0.10

(.004 ± .004)

0.10 ± 0.10

(.004 ± .004)

0.10 ± 0.10

(.004 ± .004)

0.10 ± 0.10

(.004 ± .004)

0.10 ± 0.10

(.004 ± .004)

0.10 ± 0.10

(.004 ± .004)

0.05 (.002)

P (Ref)

0.4 (.016)

0.5 (.020)

0.9 (.035)

1.7 (.067)

0.9 (.035)

n/a

R (Ref)

0.4 (.016)

1.0 (.039)

n/a

T (Ref)

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

1.1 (.043) 1.3 (.051)

1.8 (.071) 2.2 (.087)

3.2 ± 0.2

(.126 ± .008)

3.5 ± 02

3528-21

(138 ± .008)

6.0 ± 0.3

6032-28

(.236 ± .03)

7.3 ± 0.3

7343-31

(287 ± .012)

7.3 ± 0.3

7343-43

(.287 ± .012)

7.3 ± 0.3

7260-38

(.287 ± .012)

2.0 ± 0.2

2012-12

(.079 ± .008)

3.2 ± 0.2

3216-12

(.126 ± .008)

3.5 ± 0.2

3528-12

(.138 ± .008)

6.0 ± 0.3

6032-15

(236 ± .012)

7.3 ± 0.3

7343-20

(287 ± .012)

0.13 (.005) 1.4 (.055)

0.13 (.005) 2.1 (.083)

0.13 (.005) 3.1 ( (.122) 2.8 (.110) 2.4 (.094)

0.13 (.005)

3.8 (.150)

3.5 (.138) 3.5 (.138)

0.13 (.005) 0.13 (.005) 3.5 (.138) 3.5 (.138)

0.13 (.005) 0.8 (.031) 0.5 (.020) 0.8 (.031)

0.13 (.005) 1.4 (.055)

0.13 (.005) 2.1 (.083)

0.13 (.005)

3.1 (.122)

3.8 (.150)

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 provided for B, P or R because low profile cases do not have a bevel or a notch.

* MIL-C-55365/8 specified dimensions

T2005-1 • 12/27/2010

Standard MnO

Tantalum Surface Mount Capacitors – T491 Industrial Grade MnO

Series

Table 1 – Ratings & Part Number Reference

Rated

Voltage

85ºC

VDC

2.5

Capacitor

VDC

Class

85ºC

T =

Rated

Cap

120Hz

µF

100

220

3.3

4.7

6.8

100

150

491

150

Series

µF

Case Code/

Case Size

KEMET/EIA

T/3528-12

D/7343-31

A/3216-18

S/3216-12

B/3528-20

A/3216-18

S/3216-12

R/2012-12

B/3528-20

A/3216-18

T/3528-12

S/3216-12

C/6032-28

B/3528-20

A/3216-18

T/3528-12

S/3216-12

C/6032-28

U/6032-15

B/3528-20

A/3216-18

T/3528-12

C/6032-28

U/6032-15

B/3528-20

A/3216-18

T/3528-12

D/7343-31

C/6032-28

U/6032-15

B/3528-20

A/3216-18

D/7343-31

C/6032-28

U/6032-15

B/3528-20

A/3216-18

T/3528-12

D/7343-31

U/6032-15

V/7343-19

C/6032-28

B/3528-20

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)

T491R106(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)

157

T491C157(1)004A(2)

T491B157(M)004A(2)

Capacitance

(See below for

part options)

First two digits

Leakage

µAmps +20ºC

max/5min

2.5

5.5

1.0

0.1

0.2

0.3

0.4

0.6

0.9

1.3

1.9

2.7

4.0

6.0

Capacitance

max/5min

Tolerance

% Max

24.0

8.0

6.0

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

020

8.0

12.0

Voltage

% Max

ESR

Ohms

3.9

0.3

4.0

Maximum Allowable

Ripple Current

+25ºC

100kHz

mAmps

134

707

137

+85ºC

100kHz

mAmps

121

636

123

+125ºC

100kHz

mAmps

283

Moisture

Sensitivity

Temp≤260ºC

J-STD-020D

1.0

+20ºC 120Hz +20ºC 100kHz

Case Size

Code (pF)

µAmps

±10%

A = 3216-18

K =

+20ºC

B = 3528-21 represent significant M = ±20%

003 = 3V

Z = N/A

Tantalum

Rated

Case Code/

KEMET Part

= 4V

ESR

C = 6032-28

Number

digit

Leakage

gures. Third

004

Voltage

Cap

Case Size

D = 7343-31

specifies number of

006 = 6.3V

E = 7260-38

zeros.

010 = 10V

R = 2012-12

016 = 16V

Other part number options:

S = 3216-12

020 = 20V

Where the 10th character equal to K (10% tolerance) is also available in M (20% tolerance).

T = 3528-12

025 = 25V

Where the 10th character equal to M

6032-15

(20% tolerance) is only available in M (20% tolerance).

035 = 35V

V 7343-20

050 = 50V

Standard with tin terminations (14th

character = T). Tin/lead terminations is also available (14th character = H)

X = 7343-43

Also available on large (13 inch) reels. Add 7280 to the end of the part number.

120Hz

Industrial

8.0

6.0

112

101

15.0

3.5

156

140

6.0

112

101

15.0

10.0

3.5

156

140

4.0

137

123

5.0

118

106

15.0

1.8

247

222

3.5

156

140

4.0

137

123

5.0

118

106

10.0

1.8

247

222

1.8

224

202

3.5

156

140

4.0

137

123

5.0

118

106

1.8

247

222

1.8

224

202

3.0

168

151

2.5

173

156

6.0

108

0.8

433

390

1.6

262

236

1.8

224

202

3.5

156

140

4.0

137

123

0.8

433

390

1.2

303

273

1.8

224

202

0.9

307

276

4.0

137

123

5.0

118

106

0.8

433

390

1.3

263

237

0.7

423

381

1.2

303

273

2.0

Failure Rate/

206

185

Lead

mAmps

Material

Ohms

Design

mAmps

+20ºC 120Hz +20ºC 100kHz

= N/A

+25ºC

= 100%

+85ºC

Tin

2R5 = 2.5V

Matte

100kHz

(Sn) Plated

7280 = 13" Reel

Maximum allowable

Moisture

H =

ripple current

Standard Solder

Sensitivity

Coated (SnPb 5%

Pb minimum)

G = Gold Plated (A, B,

C, D, X only)

1.0

173

1.0

105

1.0

173

1.0

121

1.0

123

1.0

173

1.0

105

1.0

169

XXXX

1.0

121

1.0

Packaging (C-Spec)

mAmps

J-STD-020D

+125ºC

Temp≤260ºC

Blank

100kHz

= 7" Reel

Higher voltage ratings and tighter tolerance product including ESR may be substituted within the same size at KEMET's option. Voltage substitutions will be marked

with the higher voltage rating. Substitutions can include better than series.

T2005-1 • 12/27/2010

Roll Over for

Order Info.