0438.750WR原理图各脚功能电路原理芯片引脚定义引脚图及功能-中国IC网-芯三七

产品型号0438.750WR的概述

芯片0438.750WR概述 0438.750WR是一款广泛应用于数字和模拟信号处理的集成电路芯片。该芯片的设计主要针对工业自动化、消费电子、通信及其相关领域。由于其高度集成化和适应多种工作环境的能力，0438.750WR在市场上成为了广大电子工程师的选择。 0438.750WR采用了先进的制造工艺，确保了其稳定性和可靠性。该芯片的工作电压范围宽，通常在3V到15V之间，可以满足不同应用的需求。此外，0438.750WR支持多种通信协议，使其能够与其他设备进行高效的数据传输。详细参数 0438.750WR的主要技术参数如下： - 工作电压范围：3V-15V - 典型工作电流：20mA - 最大输入电压：20V - 频率范围：1MHz-100MHz - 信号增益：20dB-60dB可调 - 温度范围：-40℃至85℃ - 封装类型：TQFP-32、SOIC-16等多种封装可供选择 - ...

产品型号0438.750WR的Datasheet PDF文件预览

Surface Mount Fuses

Ceramic Fuse > 438 Series

438 Series – 0603 Fast-Acting Fuse

Description

The 438 Series is a 100% Lead-free, RoHS compliant and

Halogen-free fuse series designed speciﬁcally to provide

over-current protection to circuits that operate under high

working ambient temperature up to 150ºC.

The general design ensures excellent temperature stability

and performance reliability.

The high I²t values which is typical in the Littelfuse

Ceramic Fuse family ensure high inrush current withstand

capability.

Features

Agency Approvals

•ꢀ OperatingꢀTemperatureꢀ •ꢀ Suitableꢀforꢀbothꢀleadedꢀ

AGENCY

AGENCY FILE NUMBER

AMPERE RANGE

0.250A – 6A

from -55ºC to +150ºC

and lead-free reﬂow /

wave soldering

E10480

•ꢀ 100%ꢀLead-free,ꢀRoHSꢀ

compliant and Halogen-

free

LR29862

0.250A – 6A

Applications

•ꢀ HandheldꢀElectronics

•ꢀ LCDꢀDisplays

•ꢀ HardꢀDiskꢀDrives

Electrical Characteristics for Series

•ꢀ SDꢀMemoryꢀCards

•ꢀ AutomotiveꢀElectronics

% of Ampere

Ampere Rating

Opening Time at 25ºC

•ꢀ BatteryꢀPacks

Rating

100%

250%

0.250A – 6A

4 Hours, Minimum

5 Seconds, Maximum

Electrical Speciﬁcations by Item

Agency Approvals

Ampere

Rating

(A)

Max.

Nominal

Nominal Nominal Voltage Nominal Power

Amp

Code

Voltage

Interrupting Rating Resistance Melting I²t

Drop At Rated

Dissipation At

Rating (V)

(Ohms)²

(A²Sec.)³

Current (V)⁴

Rated Current (W)

0.25

0.375

0.5

0.75

1

1.25

1.5

1.75

2

2.5

3

3.5

4

.250

.375

.500

.750

001.

1.25

01.5

1.75

002.

02.5

003.

03.5

004.

005.

006.

63

32

24

2.024

1.247

0.829

0.466

0.310

0.200

0.174

0.125

0.051

0.0324

0.0252

0.0203

0.0169

0.0113

0.0087

0.0017

0.0041

0.0100

0.0281

0.0593

0.0510

0.0902

0.1440

0.1490

0.1977

0.2922

0.4752

0.6920

0.7398

1.3838

0.550

0.488

0.486

0.378

0.351

0.365

0.368

0.360

0.107

0.095

0.093

0.082

0.079

0.074

0.072

0.138

0.183

0.243

0.284

0.351

0.456

0.552

0.540

0.214

0.238

0.279

0.287

0.316

0.370

0.432

x

50A @ 63VDC

50A @ 32VAC

50A @ 32VDC/12VAC

50A @ 24VDC/12VAC

5

6

Notes:

Devices designed to carry rated current for 4 hours minimum. It is recommended that

devices be operated continuously at no more than 80% rated current. See “Temperature

Rerating Curve”for additional rerating information.

1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting

Rating tested at rated voltage with time constant < 0.8 msec.

2. Nominal Resistance measured with < 10% rated current.

Devices designed to be mounted with marking code facing up.

3. Nominal Melting I²t measured at 1 msec. opening time.

4. Nominal Voltage Drop measured at rated current after temperature has stabilized.

438 Series

1

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/438.html for current information.

Revised: February 15, 2012

Surface Mount Fuses

Introduction to Circuit Protection

Transientology

Ceramic Fuse > 438 Series

Temperature Rerating Curve

Average Time Current Curves

100

10

140

120

100

80

1

60

40

-65 -45

-25

-5

15

35

55

75

95

115 135 155

0.1

TEMPERATURE (°C)

Note:

0.01

1. Rerating depicted in this curve is in addition to the standard rerating of 20% for

continuous operation.

Example:ꢀ

For continuous operation at 75 degrees celsius, the fuse should be rerated as follows:

0.001

I = (0.80)(0.85)I_RAT= (0.68)I_RAT

0.1

1

10

100

CURRENT IN AMPERES

Soldering Parameters

t_P

Reﬂow Condition

- Temperature Min (T

Pbꢀ–ꢀfreeꢀassembly

T_P

Critical Zone

Ramp-up

T_Lto T_P

)

150°C

s(min)

T_L

T_S(max)

Pre Heat - Temperature Max (T

)

200°C

t_L

s(max)

- Time (Min to Max) (t_s)

60 – 180 seconds

Ramp-down

Average Ramp-up Rate (Liquidus Temp

(T_L) to peak)

Preheat

3°C/second max.

T_S(min)

t_S

T_S(max)to T_L- Ramp-up Rate

5°C/second max.

- Temperature (T_L) (Liquidus) 217°C

- Temperature (t_L) 60 – 150 seconds

25

Reﬂow

time to peak temperature

(t 25ºC to peak)

Time

Peak Temperature (T_P)

260^+0/-5°C

Time within 5°C of actual peak

Temperature (t_p)

10 – 30 seconds

Ramp-down Rate

6°C/second max.

8 minutes max.

260°C

Time 25°C to peak Temperature (T_P)

Do not exceed

Wave Soldering

260°C, 10 seconds max.

438 Series

2

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/438.html for current information.

Surface Mount Fuses

Ceramic Fuse > 438 Series

Product Characteristics

Moisture Resistance

MIL-STD-202, Method 106G

Body: Advanced Ceramic

Terminations: Ag / Ni / Sn (100% Lead-free)

Element Cover Coating: Lead-free Glass

Materials

MIL-STD-202, Method 107G,

ConditionꢀB-3

Thermal Shock

MIL-STD-202,ꢀMethodꢀ213B,ꢀ

Condition A

Mechanical Shock

Vibration

Moisture

Sensitivity Level

IPC/JEDECꢀJ-STD-020C,ꢀLevelꢀ1

MIL-STD-202, Method 201A

Solderability

Humidity

IPC/EIC/JEDECꢀJ-STD-002B,ꢀConditionꢀB

MIL-STD-202,ꢀMethodꢀ103B,ꢀConditionsꢀD

Vibration,

High Frequency

MIL-STD-202, Method 204D,

Condition D

Dissolution of

Metallization

IPC/EIC/JEDECꢀJ-STD-002B,ꢀ

Condition D

Resistance to

Solder Heat

MIL-STD-202,ꢀMethodꢀ210F,ꢀConditionꢀB

Terminal Strength

IECꢀ60127-4

Dimensions

Part Marking System

Amp Code Marking Code

ꢀ.53ꢀ +/- ꢀ.15ꢀ

[ꢀ.ꢀ21 +/- ꢀ.ꢀꢀ6ꢁ

1.54 ꢀ.15ꢀ

[ꢀ.ꢀ61 ꢀ.ꢀꢀ6ꢁ

.250

.375

.500

.750

001.

1.25

01.5

1.75

002.

02.5

003.

03.5

004.

005.

006.

D

E

F

ꢀ.05 ꢀ.15ꢀ

[ꢀ.ꢀ33 ꢀ.ꢀꢀ6ꢁ

G

H

J

K

L

ꢀ.5ꢀ2 ꢀ.ꢀ0ꢀ

[ꢀ.ꢀ2ꢀ ꢀ.ꢀꢀ3ꢁ

N

O

P

R

S

T

ꢀ.432 +/- ꢀ.15ꢀ

[ꢀ.ꢀ17 +/- ꢀ.ꢀꢀ6ꢁ

U

ꢀ.6ꢀ

[ꢀ.ꢀ24ꢁ

ꢀ.74

[ꢀ.ꢀ29ꢁ

Part Numbering System

0438 005. W R

1.ꢀꢀ

[ꢀ.ꢀ39ꢁ

SERIES

PACKING CODE

1.94

[ꢀ.ꢀ76ꢁ

Rꢀ=ꢀReelꢀPack

AMP CODE

QUANTITY CODE

W = 3000 pcs

Packaging

Quantity &

Packaging Code

Packaging Option

Packaging Speciﬁcation

Quantity

8mm Tape and Reel

EIA-481,ꢀIECꢀ60286,ꢀPartꢀ3ꢀ

3000

WR

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/438.html for current information.

438 Series

3

0438.750WR相关产品

0438001.WR 0438001.WRA 0438002.WR 0438002.WRA 0438002.WRGT 0438003.WR 0438003.WRGT 0438004.WR 0438004.WRA 0438004.WRGT 0438005.WR 0438005.WRGT 0438006.WR 0438006.WRGT 043801.5WR 043802.5WR 043802.5WRGT 043803.5WR 043803.5WRGT 04381.25WR 04381.75WR 04381.75WRA 043810-0092 0438146421 04382B8124 0438410004+0438600001 0438600013 0438601010 0438790027(43879-0027)0438790029 0438790065 0439-1684 0439151203 04394002.NR 04397BZ 0439SAI.17140-500 043A 043BZ001

型号:	0438.750WR
是否Rohs认证：	符合
生命周期：	Active
包装说明：	HALOGEN FREE AND ROHS COMPLIANT
Reach Compliance Code：	compliant
ECCN代码：	EAR99
HTS代码：	8536.10.00.40
风险等级：	1.61
熔断特性：	FAST
主体宽度：	0.85 mm
主体高度：	0.5 mm
主体长度或直径：	1.54 mm
电路保护类型：	ELECTRIC FUSE
保险丝尺寸：	0603
JESD-609代码：	e3
焦耳积分标称：
安装特点：	SURFACE MOUNT
最高工作温度：	150 °C
最低工作温度：	-55 °C
包装方法：	TAPE AND REEL
物理尺寸：	1.54mm x 0.85mm x 0.5mm
预放电的额定值：	0.028 A2/s
额定分断能力：	50 A
额定电流：	0.75 A
额定电压：	63 V
额定电压（直流）：	32 V
参考标准：	CSA; UL
电阻：	0.466 Ω
表面贴装：	YES
端子面层：	Tin (Sn) - with Nickel (Ni) barrier
端子形状：	WRAPAROUND
断开时间或延迟：	14400 s
Base Number Matches：	1

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