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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 • 5/18/2011

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)

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 • 5/18/2011

Standard MnO

Tantalum Surface Mount Capacitors – T491 Industrial Grade MnO

Series

Qualification

Test

Endurance

Condition

ΔC/C

85°C @ Rated Voltage, 2000 Hours.

125°C @ 2/3 Rated Voltage, 2000 Hours.

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 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 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

KEMET’s Internal Qualification Plan for this Tantalum series of capacitors follows AEC-Q200 guidelines. Standard catalog part types

ordered without a specific automotive designator, i.e., suffix AUTO or four digit customer specific designator (C SPEC), are not

considered KEMET Automotive Grade Tantalum capacitors.

T2005-1 • 5/18/2011

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

(.110 ± .012)

4.0 ± 0.3

(.157 ± .012)

3.6 ± 0.2

(.142 ± .008)

1.2 (.047)

1.5 (.059)

2.0 (.079)

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 • 5/18/2011

Standard MnO

Tantalum Surface Mount Capacitors – T491 Industrial Grade MnO

Series

Table 1 – Ratings & Part Number Reference

Rated

Voltage

85ºC

VDC

2.5

VDC

85ºC

Rated

Cap

120Hz

µF

100

220

3.3

4.7

6.8

100

150

µF

120Hz

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

R/2012-12

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

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)

T491C157(1)004A(2)

T491B157(M)004A(2)

(See below for

part options)

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

max/5min

µAmps

+20ºC

% 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

12.0

% Max

ESR

Ohms

3.9

0.3

4.0

8.0

6.0

15.0

3.5

6.0

15.0

10.0

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

Ohms

Maximum Allowable

Ripple Current

+25ºC

100kHz

mAmps

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

mAmps

+25ºC

100kHz

+85ºC

100kHz

mAmps

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

mAmps

+85ºC

100kHz

+125ºC

100kHz

mAmps

283

173

105

173

121

123

173

105

169

121

mAmps

+125ºC

100kHz

Moisture

Sensitivity

Temp≤260ºC

J-STD-020D

Temp≤260ºC

+20ºC

120Hz

+20ºC

100kHz

+20ºC

120Hz

+20ºC

100kHz

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). 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.

T2005-1 • 5/18/2011

Roll Over for

Order Info.

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