Datasheet > 004.WR

004.WR

更新时间： 2024-01-15 23:09:48

品牌	Logo	应用领域
力特 - LITTELFUSE		/
页数	文件大小	规格书
4页	154K
描述
Electric Fuse, ELECTRIC FUSE, 4A, 32VAC, 32VDC, 50A (IR), SURFACE MOUNT, HALOGEN FREE AND ROHS COMPLIANT

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技术参数
数据手册

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004.WR 技术参数

生命周期：	Active	Reach Compliance Code：	unknown
风险等级：	5.73	Base Number Matches：	1

004.WR 数据手册

Surface Mount Fuses

Introduction to Circuit Protection

Transientology

Ceramic Fuse > 441 Series

Temperature Rerating Curve

AverageTime Current Curves

100

140

120

100

-65 -45

-25

-5

115 135 155

0.1

TEMPERATURE (°C)

Note:

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

continuous operation.

0.01

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

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

0.001

100

CURRENT IN AMPERES

Soldering Parameters

t_P

Reﬂow Condition

-Temperature Min (T_s(min)

1CꢀoꢀGSFFꢀBTTFNCMZ

T_P

Critical Zone

_Lto T_P

Ramp-up

)

150°C

T_L

T_S(max)

Pre Heat -Temperature Max (T_s(max)

-Time (Min to Max) (t_s)

)

200°C

t_L

ꢅꢂꢀoꢀꢁꢆꢂꢀTFDPOET

Ramp-down

Average Ramp-up Rate (LiquidusTemp

(T_L) to peak)

Preheat

3°C/second max.

T_S(min)

t_S

T_S(max)toT_L- Ramp-up Rate

5°C/second max.

217°C

-Temperature (T_L) (Liquidus)

Reﬂow

time to peak temperature

(t 25ºC to peak)

-Temperature (t_L)

ꢅꢂꢀoꢀꢁꢇꢂꢀTFDPOET

260^+0/-5°C

Time

PeakTemperature (T_P)

Time within 5°C of actual peak

Temperature (t_p)

ꢁꢂꢀoꢀꢈꢂꢀTFDPOET

Ramp-down Rate

6°C/second max.

8 minutes max.

260°C

Time 25°C to peakTemperature (T_P)

Do not exceed

Wave Soldering

260°C, 10 seconds max.

441 Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/441.html for current information.

123 4

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