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SOLID TANTALUM CHIP CAPACITORS

T492 SERIES – Style CWR11 Per Mil-PRF-55365/8

•

Established reliability military version of

Industrial Grade T491 series

Taped and reeled per EIA 481-1

Precision-molded, laser-marked case

Symmetrical, compliant terminations

100% Surge Current test available for all case sizes

Operating Temperature: -55˚C to + 125˚C

CATHODE (-) END

VIEW

SIDE VIEW

Qualified to MIL-PRF-55365/8, Style CWR11:

– Termination

Options B, C, H, K

– Weibull failure rate codes B, C and D

– Capacitance values and voltages as shown

in following part number table. (Contact

KEMET for latest qualification status)

T492 OUTLINE DRAWINGS

ANODE (+) END

VIEW

BOTTOM VIEW

Termination

cutout at

KEMETs

Option,

either end

DIMENSIONS –

Millimeters (Inches)

Case Size

KEMET

EIA

3216-18

3528-21

6032-28

7343-31

3.2 ± 0.2

(.126 ± .008)

3.5 ± 0.2

(.138 ± .008)

6.0 ± 0.3

.236 ± .012

7.3 ± 0.3

(.287 ± .012)

1.6 ± 0.2

(.063 ± .008)

2.8 ± 0.2

(.110 ± .008)

3.2 ± 0.3

(.126 ± .012)

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)

± 0.20

± 0.1

± (.008)

± (.004)

Component

± 0.3

± (.012)

± 0.15

(Ref) ± .006

0.4

(.016)

0.4

(.016)

0.5

(.020)

0.5

(.020)

(Ref)

0.13

(.005)

0.13

(.005)

0.13

(.005)

0.13

(.005)

(Min)

(Ref)

0.9

(.035)

1.1

(.043)

1.4

(.055)

1.5

(.059)

1.2

(.047)

2.2

(.087)

2.2

(.087)

2.4

(.094)

0.8

(.031)

0.8

(.031)

1.3

(.051)

1.3

(.051)

0.10 ± 0.10

0.4

(.004 ± .004) (.016) (.016)

0.10 ± 0.10

0.5

1.0

(.004 ± .004) (.020) (.039)

0.10 ± 0.10

0.9

1.0

(.004 ± .004) (.035) (.039)

0.10 ± 0.10

0.9

1.0

(.004 ± .004) (.035) (.039)

1.4

1.1

1.3

(.055) (.043) (.051)

1.1

1.8

2.2

(.043) (.071) (.087)

3.1

2.8

2.4

(.122) (.110) (.094)

3.8

3.5

(.150) (.138) (.138)

Notes: 1. Metric dimensions govern

2. (Ref) Dimensions provided for reference only

* Mil-PRF-55365/8 Specified Dimensions

ORDERING INFORMATION —

MIL-PRF-55365 Part Number

CWR11

Style

Capacitors, Chip, Fixed Tantalum

Established Reliability, (encapsulated)

105

Surge Current Option

A = +25°C after Weibull

B = -55°C +85°C after Weibull

C = -55°, & +85°C before Weibull

Z = None

Voltage

D = 6V J = 20V

F = 10V K = 25V

H = 15V M = 35V

Failure Rate Symbol

C = Hot Solder Dipped

K = Solder Fused

B (0.1%/1000 hrs.)

C (0.01%/1000 hrs.)

D (0.001%/1000 hrs.)

#Exponential: M (1.0%/1000 hrs.)

# Inactive for

P (0.1%/1000 hrs.)

New Design

R (0.01%/1000 hrs.)

S (0.001%/1000 hrs.)

Weibull:

Termination Finish Code

B = Gold Plated

H = Solder Plated

Capacitance Picofarad Code

First two digits represent significant figures.

Third digit specifies number of zeros to follow.

Capacitance Tolerances

M = ±20%; K = ±10%; J = ±5%

T492 SERIES ORDERING INFORMATION —

KEMET Part Number

Tantalum

Series

T492 - Precision Molded, Style CWR11

492

105

035

4250

Surge Current Option

4250 = +25°C after Weibull

4251 = -55° +85°C after Weibull

4252 = -55, & +85°C before Weibull

Case Size

A, B, C, D

Lead Material

B = Gold

C = Hot Solder Dip

H or S = Solder Plated

K = Solder Fused

Capacitance Picofarad Code

First two digits represent significant figures.

Third digit specifies number of zeros to follow.

Capacitance Tolerances

M = ±10%; K = ±10%; J = ±5%

Failure Rate Symbol

Weibull: B (0.1%/1000 hrs.); C (0.01%/1000 hrs.); D (0.001%/1000 hrs.)

# Exponential: M (1.0%/1000 hrs.); P (0.1%/1000 hrs.), R (0.01%/1000 hrs.);

S (0.001%/1000 hrs.)

# Exponential not recommended for new design

Voltage

As shown

* Part Number Example: T492B105K035BS (14 digits - no spaces)

* See www.kemet.com for Pb Free transition.

Note on Failure Rates: Exponential failure rate levels M, P, R and S are inactive for new design per Mil-C-55365.

Parts qualified to Weibull failure rate levels are substitutable for exponential failure rate levels.

©KEMET Electronics Corporation, P.O. Box 5928, Greenville, S.C. 29606, (864) 963-6300

SOLID TANTALUM CHIP CAPACITORS

T492 SERIES—Style CWR11 Per Mil-PRF-55365/8

T492 (CWR11) RATINGS AND PART NUMBER REFERENCE

Capaci-

Case

tance

Size

Case

μF

Size

ESR

DCL

DF %

ESR

Leakage

@ +25°C

@ +25

KEMET

Mil-C-55365/8

μA

% +25 C

+25°C

KEMET

Mil-C-55365/8

A @ +25 C 120

120 Hz

100kHz

Part Number

+25°C

100kHz

Part Number

Max

6 Volt Rating at +85°C (4 Volt Rating at +125°C)

T492A155(1)006(2)(3)(4)

CWR11D(6)155(1)(2)(5)

0.5

6.0

8.0

T492A225(1)006(2)(3)(4)

CWR11D(6)225(1)(2)(5)

0.5

6.0

8.0

T492A335(1)006(2)(3)(4)

CWR11D(6)335(1)(2)(5)

0.5

6.0

8.0

ESR

DCL

DF %

T492B475(1)006(2)(3)(4)

CWR11D(6)475(1)(2)(5)

0.5

6.0

5.5

KEMET

Mil-C-55365/8

μA @ @ +25°C

T492B685(1)006(2)(3)(4)

CWR11D(6)685(1)(2)(5)

0.5

6.0

4.5

Part Number

+25°C 120 Hz

T492B106(1)006(2)(3)(4)

CWR11D(6)106(1)(2)(5)

0.6

6.0

3.5

Max

T492C156(1)006(2)(3)(4)

CWR11D(6)156(1)(2)(5)

0.9

6.0

3.0

T492C226(1)006(2)(3)(4)

CWR11D(6)226(1)(2)(5)

1.4

6.0

2.2

T492D476(1)006(2)(3)(4)

CWR11D(6)476(1)(2)(5)

2.8

6.0

1.1

10 Volt Rating at +85°C (7 Volt Rating at 125°C)

T492A105(1)010(2)(3)(4)

CWR11F(6)105(1)(2)(5)

0.5

4.0

10.0

T492A155(1)010(2)(3)(4)

CWR11F(6)155(1)(2)(5)

0.5

6.0

8.0

T492A225(1)010(2)(3)(4)

CWR11F(6)225(1)(2)(5)

0.5

6.0

8.0

T492B335(1)010(2)(3)(4)

CWR11F(6)335(1)(2)(5)

0.5

6.0

5.5

T492B475(1)010(2)(3)(4)

CWR11F(6)475(1)(2)(5)

0.5

6.0

4.5

T492B685(1)010(2)(3)(4)

CWR11F(6)685(1)(2)(5)

0.7

6.0

3.5

T492C156(1)010(2)(3)(4)

CWR11F(6)156(1)(2)(5)

1.5

6.0

2.5

T492D336(1)010(2)(3)(4)

CWR11F(6)336(1)(2)(5)

3.3

6.0

1.1

15 Volt Rating at +85°C (10 Volt Rating at +125°C)

T492A684(1)015(2)(3)(4)

CWR11H(6)684(1)(2)(5)

0.5

4.0

12.0

T492A105(1)015(2)(3)(4)

CWR11H(6)105(1)(2)(5)

0.5

4.0

10.0

T492A155(1)015(2)(3)(4)

CWR11H(6)155(1)(2)(5)

0.5

6.0

8.0

T492B225(1)015(2)(3)(4)

CWR11H(6)225(1)(2)(5)

0.5

6.0

5.5

T492B335(1)015(2)(3)(4)

CWR11H(6)335(1)(2)(5)

0.5

6.0

5.0

T492B475(1)015(2)(3)(4)

CWR11H(6)475(1)(2)(5)

0.7

6.0

4.0

T492C106(1)015(2)(3)(4)

CWR11H(6)106(1)(2)(5)

1.6

6.0

2.5

T492D226(1)015(2)(3)(4)

CWR11H(6)226(1)(2)(5)

3.3

6.0

1.1

20 Volt Rating at +85°C (13 Volt Rating at +125°C)

T492A474(1)020(2)(3)(4)

CWR11J(6)474(1)(2)(5)

0.5

4.0

14.0

T492A684(1)020(2)(3)(4)

CWR11J(6)684(1)(2)(5)

0.5

4.0

12.0

T492A105(1)020(2)(3)(4)

CWR11J(6)105(1)(2)(5)

0.5

4.0

10.0

T492B155(1)020(2)(3)(4)

CWR11J(6)155(1)(2)(5)

0.5

6.0

T492B225(1)020(2)(3)(4)

CWR11J(6)225(1)(2)(5)

0.5

6.0

5.0

T492B335(1)020(2)(3)(4)

CWR11J(6)335(1)(2)(5)

0.7

6.0

4.0

T492C475(1)020(2)(3)(4)

CWR11J(6)475(1)(2)(5)

1.0

6.0

3.0

T492C685(1)020(2)(3)(4)

CWR11J(6)685(1)(2)(5)

1.4

6.0

2.4

T492D156(1)020(2)(3)(4)

CWR11J(6)156(1)(2)(5)

3.0

6.0

1.1

25 Volt Rating at +85°C (17 Volt Rating at +125°C)

T492A334(1)025(2)(3)(4)

CWR11K(6)334(1)(2)(5)

0.5

4.0

15.0

T492A474(1)025(2)(3)(4)

CWR11K(6)474(1)(2)(5)

0.5

4.0

14.0

T492B684(1)025(2)(3)(4)

CWR11K(6)684(1)(2)(5)

0.5

4.0

7.5

T492B105(1)025(2)(3)(4)

CWR11K(6)105(1)(2)(5)

0.5

4.0

6.5

T492B155(1)025(2)(3)(4)

CWR11K(6)155(1)(2)(5)

0.5

6.0

6.5

T492C225(1)025(2)(3)(4)

CWR11K(6)225(1)(2)(5)

0.6

6.0

3.5

T492C335(1)025(2)(3)(4)

CWR11K(6)335(1)(2)(5)

0.9

6.0

3.5

T492C475(1)025(2)(3)(4)

CWR11K(6)475(1)(2)(5)

1.2

6.0

2.5

T492D685(1)025(2)(3)(4)

CWR11K(6)685(1)(2)(5)

1.7

6.0

1.4

T492D106(1)025(2)(3)(4)

CWR11K(6)106(1)(2)(5)

2.5

6.0

1.2

35 Volt Rating at +85°C (23 Volt Rating at +125°C)

T492A104(1)035(2)(3)(4)

CWR11M(6)104(1)(2)(5)

0.5

4.0

24.0

T492A154(1)035(2)(3)(4)

CWR11M(6)154(1)(2)(5)

0.5

4.0

21.0

T492A224(1)035(2)(3)(4)

CWR11M(6)224(1)(2)(5)

0.5

4.0

18.0

T492A334(1)035(2)(3)(4)

CWR11M(6)334(1)(2)(5)

0.5

4.0

15.0

T492B474(1)035(2)(3)(4)

CWR11M(6)474(1)(2)(5)

0.5

4.0

10.0

T492B684(1)035(2)(3)(4)

CWR11M(6)684(1)(2)(5)

0.5

4.0

8.0

T492B105(1)035(2)(3)(4)

CWR11M(6)105(1)(2)(5)

0.5

4.0

6.5

T492C155(1)035(2)(3)(4)

CWR11M(6)155(1)(2)(5)

0.5

6.0

4.5

T492C225(1)035(2)(3)(4)

CWR11M(6)225(1)(2)(5)

0.8

6.0

3.5

T492C335(1)035(2)(3)(4)

CWR11M(6)335(1)(2)(5)

1.2

6.0

2.5

T492D475(1)035(2)(3)(4)

CWR11M(6)475(1)(2)(5)

1.7

6.0

1.5

2.2

3.3

4.7

Capaci-

Case

6.8

tance

Size

10.0

μF

15.0

22.0

47.0

1.0

1.5

2.2

3.3

4.7

6.8

15.0

33.0

0.7

1.0

1.5

2.2

3.3

4.7

10.0

22.0

0.5

0.7

1.0

1.5

2.2

3.3

4.7

6.8

15.0

0.3

0.5

0.7

1.0

1.5

2.2

3.3

4.7

6.8

10.0

0.1

0.2

0.3

0.5

0.7

1.0

1.5

2.2

3.3

4.7

PACKAGING

Note: T492 Packaging

• No c-spec required for 7” reel packaging

• C-7280 required for 13” reel packaging

• Standard reel packaging is not mandatory

• Bulk packaging also available using C-7610

See page 91 for tape and reel quantities.

CONSTRUCTION

Negative

Termination*

Molded

Case

Silver Adhesive

Washer

Polarity

Stripe (+)

Polarity

Bevel (+)

Tantalum

Wire

Tantalum

(Ta

)

Weld

Mn0

Coat

(First Layer)

(Second Layer)

Carbon

Silver Paint

(Third Layer)

Positive

Termination

CAPACITOR MARKINGS

T492 Series — All Case Sizes

Jan

Brand

Rated

Voltage

156

513

Print Week Code:

1st Digit = Year

2nd & 3rd Digits = Week

Sn/Pb (5% Pb

Polarity

minimum)

Indicator (+)

Picofarad

Code

KEMET

I. D. Symbol

"513" =

The 13th week of 2005

(1) To complete KEMET/CWR part number, insert M for ±20%, K for ±10% or J for ±5% tolerance.

(2) To complete KEMET/CWR part number, insert Failure Rate Symbol Weibull: B (0.1%/1000 Hrs.), C (0.01%/1000Hrs or D (0.001%/1000 Hrs.),

Exponential: M (1.0%/1000 hrs.), P (0.1%/1000 hrs.), R (0.01%/1000 hrs.) or S (0.001%/1000 hrs.)

(3) To complete KEMET part number, insert Termination Finish Designation B = Gold; C = Hot Solder Dipped; S = Solder Plated; K = Solder Fused.

(4) To complete KEMET part number, insert 4250 = +25°C after Weibull; 4251 = -55° + 85°C after Weibull; or 4252 = -55, & +85°C before Weibull Surge Current Option.

(5) To complete CWR part number, insert A = +25°C after Weibull; B = -55° + 85°C after Weibull; C = -55°, & + 85°C before Weibull or Z = None for Surge Current Option.

(6) To complete CWR part numbers, insert B = Gold; C = Hot Solder Dipped; H or S = Solder Plated; K = Solder Fused

Note on Failure Rates:

Exponential failure rate

levels M, P, R and S are

inactive for new design

per MIL-C-55365. Parts

qualified to Weibull failure

rate levels are substitutable

for exponential failure

rate levels.

Note: ESR limits are per

Mil-C-55365/8

Solid Tantalum Surface Mount

TANTALUM AND ALUMINUM CHIP CAPACITORS

Packaging Information

Tape & Reel Packaging

KEMET’s Molded Tantalum and Aluminum Chip

Capacitor families are packaged in 8 mm and 12 mm plastic

tape on 7" and 13" reels, in accordance with EIA Standard

481-1: Taping of Surface Mount Components for Automatic

Handling. This packaging system is compatible with all tape

fed automatic pick and place systems.

Right Hand

Orientation

Only

Embossed Carrier

(+)

(–)

Embossment

Top Tape Thickness

.10mm (.004") Max Thickness

8mm

±.30

8mm (0.315")

(.315

±.012")

12mm (0.472")

12mm

±.30

(.472

±.012")

178mm (7.00")

180mm (7.0")

330mm (13.00")

330mm (13.0")

Labeling:

Bar code labeling (standard or custom) shall be on the side of the reel opposite the sprocket holes.

Refer to EIA-556.

QUANTITIES PACKAGED PER REEL

Case Code

KEMET

EIA

2012-12

3216-12

3528-12

6032-15

7343-15

7343-20

3216-18

3528-21

6032-28

7343-31

7343-40

7343-43

7260-38

Tape

Width-mm

7" Reel*

2,500

1,000

2,000

500

13" Reel*

10,000

5,000

3,000

9,000

8,000

3,000

2,500

2,000

* No c-spec required for 7" reel packaging. C-7280 required for 13" reel packaging.

Standard reel packaging is not mandatory.

Bulk packaging also available using C-7610.

Packaging

TANTALUM, CERAMIC AND

ALUMINUM CHIP CAPACITORS

Packaging Information

Performance Notes

1. Cover Tape Break Force:

1.0 Kg Minimum.

2. Cover Tape Peel Strength:

The total peel strength of the cover tape from the carrier tape shall be:

Tape Width

Peel Strength

8 mm

0.1 Newton to 1.0 Newton (10g to 100g)

12 mm

0.1 Newton to 1.3 Newton (10g to 130g)

The direction of the pull shall be opposite the direction of the carrier tape travel. The pull angle of the carrier

tape shall be 165 to 180 from the plane of the carrier tape. During peeling, the carrier and/or cover tape

shall be pulled at a velocity of 300 ±10 mm/minute.

3. Reel Sizes:

Molded tantalum capacitors are available on either 180 mm (7") reels (standard) or 330 mm (13")

reels (with C-7280). Note that 13” reels are preferred.

4. Labeling:

Bar code labeling (standard or custom) shall be on the side of the reel opposite the sprocket holes.

Refer to EIA-556.

Embossed Carrier Tape Configuration:

Figure 1

Table 1 — EMBOSSED TAPE DIMENSIONS

(Metric will govern)

Constant Dimensions — Millimeters (Inches)

Tape Size

8 mm

and

12 mm

4.0 ±0.10

(0.157 ±0.004)

2.0 ±0.05

(0.079 ±0.002)

T Max

0.600

(0.024)

Max

0.100

(0.004)

1.5

1.75 ±0.10

+0.10 -0.0

(0.059

(0.069 ±0.004)

+0.004, -0.0)

Pitch

Single

(4 mm)

Max.

Note 1

4.4

(0.173)

12 mm

Double

(8 mm)

8.2

(0.323)

Min.

Note 2

1.0

Variable Dimensions — Millimeters (Inches)

Tape Size

8 mm

3.5 ±0.05

4.0 ±0.10

R Min.

Note 3

25.0

Max

2.5

(0.098)

8.0 ±0.30

(.315 ±0.012)

Note 4

(0.039) (0.138 ±0.002)

1.5

5.5 ±0.05

(0.059) (0.217 ±0.002)

(0.157 ±0.004) (0.984)

8.0 ±0.10

30.0

(0.315 ±0.004) (1.181)

4.6

12.0 ±0.30

(0.181) (0.472 ±0.012)

NOTES

1. B1 dimension is a reference dimension for tape feeder clearance only.

2. The embossment hole location shall be measured from the sprocket hole controlling the location of the embossment. Dimensions of

embossment location and hole location shall be applied independent of each other.

3. Tape with components shall pass around radius “R” without damage (see sketch A). The minimum trailer length (Fig. 2) may require

additional length to provide R min. for 12 mm embossed tape for reels with hub diameters approaching N min. (Table 2)

4. The cavity defined by A

and K

shall be configured to surround the part with sufficient clearance such that the chip does not pro-

trude beyond the sealing plane of the cover tape, the chip can be removed from the cavity in a vertical direction without mechanical

restriction, rotation of the chip is limited to 20 degrees maximum in all 3 planes, and lateral movement of the chip is restricted to 0.5 mm

maximum in the pocket (not applicable to vertical clearance.)

TANTALUM, CERAMIC AND

ALUMINUM CHIP CAPACITORS

Packaging Information

Embossed Carrier Tape Configuration (cont.)

20°

Sketch D:

Tape Camber (Top View)

1mm (0.039) Max.

250mm (9.843)

Allowable camber to be 1 mm/250 mm.

1mm (0.039) Max.

400mm (15.75) Min.

Figure 2:

Tape Leader

& Trailer

Dimensions

(Metric

Dimensions

Will Govern)

Figure 3:

Reel Dimensions (Metric Dimensions will govern)

Table 2 – REEL DIMENSIONS (Metric will govern)

Tape Size

8 mm

A Max

330.0

(12.992)

B* Min

1.5

(0.059)

13.0 ± 0.20

(0.512 ± 0.008)

D* Min

20.2

(0.795)

N Min

50.0

(1.969)

See

Note 3

Table 1

8.4

+1.5, -0.0

(0.331

+0.059, -0.0)

12.4

+2.0, -0.0

(0.488

+0.078, -0.0)

Max

14.4

(0.567)

7.9 Min

(0.311)

10.9 Max

(0.429)

11.9 Min

(0.469)

15.4 Max

(0.606)

12 mm

330.0

(12.992)

1.5

(0.059)

13.0 ± 0.20

(0.512 ± 0.008)

20.2

(0.795)

18.4

(0.724)

Packaging

嵌入式系统中U盘随时接入都可以实现自动挂载的功能: （1）之前看网上的解决方法是移植udev。但是在查找udev资料的时候，发现udev只在linu...; 全部都是泡馍 Linux与安卓

请问USIM卡中电话簿文件是怎样存储的?: ETSI 规范上说明USIM卡支持大容量的电话号码簿,它支持多个姓名字段还有多个电话号码,那么请...; daisyquan 嵌入式系统

差分对：你真正需要了解的内容: 转自：deyisupport 对于速度的渴求始终在增长，传输速率每隔几年就会加倍。这一趋势在诸如...; maylove 模拟与混合信号

基于NRF24LE1 的防碰撞算法怎么写: 如题，有人写过吗？讨论一下基于NRF24LE1 的防碰撞算法怎么写 LZ你好，请问这个算法你搞出...; yujun_2 RF/无线

高频变压器、低频变压器、脉冲变压器: 高频变压器、低频变压器、脉冲变压器 1.两个绕组的脉冲变压器和带反馈绕组、有三个绕组的高频变压...; QWE4562009 分立器件

关于电机控制器IGBT隔离电源电压问题: 咨询下，为什么在现在主流的电机控制器中IGBT的隔离电源原边都将12V（电瓶电）升压到15V，再将...; yz123yz 开关电源学习小组

7、PIC32系列定时器TMR-16位外部同步定时器的使用

1、PIC32参考资源 PIC32系列参考手册中文版链接地址：PIC32系列参考手册第14章定时器 2、16位同步外部定时器方案说明步骤1：TMR3产生固定频率的脉冲信号；步骤2：TMR2设置为外部时钟输入；步骤3：将TMR3产生的脉冲信号呈现到引脚电平变化上，并将引脚接入到TMR2的外部时钟输入引脚上；步骤4：TMR2中断中设置为固定时间设置LED电平翻转； ...[详细]
虚拟示波器是什么_虚拟示波器详解

　　虚拟示波器是什么　　虚拟示波器是利用高性能的模块化硬件，结合高效灵活的软件来完成各种测试、测量和自动化的应用。虚拟仪器技术（VI）就是利用高性能的模块化硬件，结合高效灵活的软件来完成各种测试、测量和自动化的应用。灵活高效的软件能帮助您创建完全自定义的用户界面，模块化的硬件能方便地提供全方位的系统集成，标准的软硬件平台能满足对同步和定时应用的需求。　　　　虚拟示波器的组成　　虚拟示...[详细]
苹果尝试自动化组装产品遇挑战：机器人拧螺丝还有点难

The Information今天发表了一份详细的报道，详细介绍了苹果公司试图用机器人而非人类来组装产品所面临的困难。报道称，从2012年开始，苹果公司在加州桑尼维尔市的一个秘密实验室里组建了一个机器人和自动化专家团队，寻找减少生产线上工人数量的方法。然而，据说这个团队在设计一些自动化系统时很快就遇到了挑战。　　建造一个可以固定螺丝的机器人是行业内最难的挑战之一。　　机器人必须以特定的...[详细]
如何改进8051微控制器创建可执行高达33MIP的高性能直接替代品

本文介绍了达拉斯半导体如何改进传统的8051微控制器，创建可执行高达33MIP的高性能直接替代品。多个数据指针、扩展内存寻址（高达 16MB）和闪存等附加功能提高了设备的速度和实用性。系统设计人员知道，微控制器是任何嵌入式系统的核心，而这正是行动发生的地方。ADI公司的全资子公司达拉斯半导体一直在重新定义无处不在的8051微控制器。也许过去10年中最大的改进是在指令执行速度方面。我们的 1...[详细]
穿在身上的Intel Inside

半导体老大英特尔在移动计算时代遇到了挑战，ARM架构几乎统治了手机终端市场。英特尔在个人电脑市场也曾遇到波折，奔4时代单纯追求频率导致功耗过高，X86向X64演进时又曾短暂落后AMD。但是领头羊就是领头羊，英特尔纠偏改错的能力极强，新酷睿架构一出，不再单纯强调频率而注重能耗比，并开启个人电脑多核时代，从此对手绝望，个人电脑市场目前英特尔的市占率在85%以上。移动计算时代踏...[详细]
苹果发布iOS 8.4 Beta 4 正式版月底到来

iOS 8.4 Beta 4 　　新浪手机讯 6月10日上午消息，苹果公司今天向开发者发布了iOS 8.4的第四个测试版，同时，也向参与公测计划的用户推送了iOS 8.4的第三个公测版。　　在4月初发布iOS 8.3正式版之后，iOS 8.4从4月中旬开始测试。此次iOS 8.4 Beta 4版本号为12H4125a，此前的测试版用户可以OTA升级，或者到iOS开发者中心下载。...[详细]
DRAM为元宇宙发展不可或缺存储业可望受益

近期，元宇宙概念大火。在此趋势下带动下，DRAM有望迎来新的发展机遇。外资认为DRAM 将是元宇宙发展不可或缺的一环，因此，包括南亚科、华邦电在内的中国台湾存储厂商明年在存储器市况好转下，获利动能蓄势向上，而元宇宙商机也将成为除 5G 应用发展外，另一项推动长线需求成长的动能。外资预期，超大规模云端厂商资本支出将在年底前回温，明年上半年存储器跌价情况可望趋缓，价格将触底，存储器市况正逐渐回...[详细]
德媒报道：全球机器人行业繁荣超预期

近日，据德国《商报》报道，新冠疫情期间的自动化繁荣甚至让机器人行业内部的人士都感到惊讶。国际机器人联合会秘书长苏珊·比勒表示：“我们曾预测新冠病毒大流行后机器人行业会出现增长，但实际情况再次明显超出我们的预期。” 该联合会本周宣布，2021年全球新安装工业机器人数量同比增长31%，达到创纪录的517385台。这样一来，增长再次明显强于最初的估计值。该联合会最初估计，全球机器人销量要到20...[详细]
中兴通讯田锋：车联网是未来汽车行业发展必然趋势

“智能汽车的第一步是要联网，这是发展的核心。之后，就是从联网基础上进行加强，让它在一些功能上能够做到对人的替代。”2017中国电动汽车百人会常州论坛期间，各方对于新能源车智能化发展十分关注，中兴通讯股份有限公司汽车电子副总裁田锋在接受《中国消费者报》记者专访时给出了如上表述。毫无疑问，网联构成了智能化的基础。上个月，高铁复兴号的开通吸引了人们的关注。在刚刚过去的十一假期，不少游客都迫...[详细]
是德科技推出新型大电流、超低噪声滤波器

新闻要点： 新型大电流、超低噪声滤波器现在将处理能力提高到 500 mA，同时让噪声性能保持在 10 Vrms 的水平上 全球独一无二的超低噪声电源售价不到一万美元是德科技公司（NYSE：KEYS）日前推出一款专为B2961A 和 B2962A 6.5 位低噪声电源设计的新型大电流、超低噪声滤波器。这两种电源能够在保持 10 Vrms 和 1nVrms/ Hz（10 kHz频率下）噪...[详细]
和特斯拉方向不同，新势力Canoo专攻电池布局

到目前为止，大多数电动车的电池布局都大同小异，这些电池组基本都以方方扁扁的整包形式挂在底盘下方。在坚固的外壳内部，是由不同数量的电池模块拼合而成。有些车企认为这种电池布局方式已经落后，如果能把电芯或电池模块“选择性填充”进车架的一些空心结构内部，不但能更充分利用车体空间，提升整车电池容量，还能极大增强电池组的抗冲击能力。来自加州的电动车初创公司Canoo就有这...[详细]
案例｜自动化机床加工车间解决方案

广告摘要声明广告目前人口老龄化趋势越来越明显，发展智能装备，打造自动化生产线显得尤为重要。自动化生产线采用机械手上下料，加工不需要人工，且控制精度高，能够准确把握各设备的加工节奏，保障产品品质，为企业降本增效。华成工控自动化机床加工车间解决方案，通过驱控一体电控箱控制机床上下料机械手及料盘，并与控制传输带的PLC结合，打造出了一个易部署、易维护、高可靠性，可24小时作业的自动化取放料产线。 ...[详细]
橙色云：国内首创室内外自主导航无轨重载AGV

国内市场上普通轻载型AGV小车的研发技术基本已经完善，但大物料（超重、超长）的自动化搬运，成为了AGV行业的技术难点。重载AGV的载重在10吨以上，设计结构与轻载型AGV有很大的不同，研发、生产门槛相对较高。同时，在大企业对大型设备和产品运输要求越来越严格的前提下，AGV的构造和承载也发生了变化，室外或半室外、重载AGV技术的市场需求和应用越来越广泛。橙色云自主导航无轨重载AGV 在无人驾...[详细]
示波器分段存储原理讲解及案例分析

如果你在使用示波器时，因采集到的无效波形过多，导致有效波形失真，又或者你在捕获异常时，想获得每次异常现象，那么这里提到的分段存储功能，可能就是你想要的答案。波形失真案例分析我们采集一段波形CAN总线信号，用ZDS5054 Pro示波器对该信号进行采集并显示。第一次实验我们将示波器存储深度设置为1.4Mpts，采样时间设置为280us，采集完成一帧波形并按下暂停后，将波形调整至合适位置，波...[详细]
STM32 DMA彻底研究

typedef struct { u32 DMA_PeripheralBaseAddr; u32 DMA_MemoryBaseAddr; u32 DMA_DIR; u32 DMA_BufferSize; u32 DMA_PeripheralInc; u32 DMA_MemoryInc; u32 DMA_PeripheralDataSize; u32 DMA_MemoryDataSize; u3...[详细]