Datasheet > 1N4742ARL

1N4742ARL

更新时间： 2023-05-15 00:00:00

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		测试二极管
页数	文件大小	规格书
9页	113K
描述
Zener Diode, 12V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, GLASS, CASE 59-03, 2 PIN

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

1N4742ARL 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	O-LALF-W2	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8541.10.00.50
风险等级：	4.1	其他特性：	METALLURGICALLY BONDED
外壳连接：	ISOLATED	配置：	SINGLE
二极管元件材料：	SILICON	二极管类型：	ZENER DIODE
JEDEC-95代码：	DO-41	JESD-30 代码：	O-LALF-W2
JESD-609代码：	e0	膝阻抗最大值：	700 Ω
元件数量：	1	端子数量：	2
最高工作温度：	200 °C	最低工作温度：	-65 °C
封装主体材料：	GLASS	封装形状：	ROUND
封装形式：	LONG FORM	极性：	UNIDIRECTIONAL
最大功率耗散：	1 W	认证状态：	Not Qualified
标称参考电压：	12 V	最大反向电流：	5 µA
表面贴装：	NO	技术：	ZENER
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	WIRE
端子位置：	AXIAL	最大电压容差：	5%
工作测试电流：	21 mA	Base Number Matches：	1

1N4742ARL 数据手册

GENERAL DATA — 1–1.3 WATT DO-41 GLASS

APPLICATION NOTE

Since the actual voltage available from a given zener diode

temperature and may be found as follows:

is temperature dependent, it is necessary to determine junc-

tiontemperatureunderanysetofoperatingconditionsinorder

to calculate its value. The following procedure is recom-

mended:

∆T = θ P .

JL JL D

may be determined from Figure 3 for dc power condi-

tions. For worst-case design, using expected limits of I , limits

ofP andtheextremesofT (∆T )maybeestimated.Changes

Lead Temperature, T , should be determined from:

in voltage, V , can then be found from:

T = θ

LA D

+ T .

∆V = θ

∆T .

, the zener voltage temperature coefficient, is found from

isthelead-to-ambientthermalresistance(°C/W)andP is

Figure 2.

Under high power-pulse operation, the zener voltage will

thepower dissipation. The value for θ willvaryanddepends

onthedevicemountingmethod.θ isgenerally30to40°C/W

for the various clips and tie points in common use and for

printed circuit board wiring.

vary with time and may also be affected significantly by the

zenerresistance. Forbestregulation, keepcurrentexcursions

as low as possible.

Surge limitations are given in Figure 5. They are lower than

would be expected by considering only junction temperature,

as current crowding effects cause temperatures to be ex-

tremely high in small spots, resulting in device degradation

should the limits of Figure 5 be exceeded.

The temperature of the lead can also be measured using a

thermocoupleplacedontheleadascloseaspossibletothetie

point. The thermal mass connected to the tie point is normally

large enough so that it will not significantly respond to heat

surges generated in the diode as a result of pulsed operation

once steady-state conditions are achieved. Using the mea-

sured value of T , the junction temperature may be deter-

mined by:

T = T + ∆T .

∆T is the increase in junction temperature above the lead

Motorola TVS/Zener Device Data

1–1.3 Watt DO-41 Glass Data Sheet

6-23

1 2 345 6 7...9

中文翻译

下载PDF

与1N4742ARL相关器件

型号	品牌	获取价格	描述	数据表
1N4742ARL2	TAK_CHEONG	获取价格	Zener Diode, 12V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, HERMETIC SEALED, GLASS, DO-
1N4742A-T	DIODES	获取价格	1.0W ZENER DIODE
1N4742A-T	RECTRON	获取价格	Zener Diode, 12V V(Z), 1W, Silicon, Unidirectional, DO-41, HALOGEN FREE AND ROHS COMPLIANT
1N4742AT/R	NXP	获取价格	DIODE 12 V, 1 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-41, HERMETIC SEALED,
1N4742A-T/R	FRONTIER	获取价格	Zener Diode, 12V V(Z), 5%, 1W, Silicon, Unidirectional,
1N4742AT26A	FAIRCHILD	获取价格	Zener Diode, 12V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41
1N4742A-T3	WTE	获取价格	Zener Diode, 12V V(Z), 5%, 1W, Silicon, Unidirectional, DO-41, PLASTIC PACKAGE-2
1N4742AT50A	ONSEMI	获取价格	DIODE 12 V, 1 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-41, Voltage Regulator
1N4742A-T50A	ONSEMI	获取价格	Zener 1W 5%
1N4742ATA	ONSEMI	获取价格	12V, 1W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-41, HERMETIC SEALED, GLASS, C

与1N4742ARL相关文章

NE5532P芯片资料：引脚说明、电气参数及替换型号推荐
2024-06-13

1
解读MMBT5401数据手册：电气参数及替换型号推荐
2024-06-13

2
深入解读BAV70数据手册：特性、电气参数及替换型号推荐
2024-06-13

4
74HC595D芯片引脚图及功能、参数介绍、替代型号推荐
2024-06-13

2

产品中心

服务支持

精选活动

关于我们

帮助中心

1N4742ARL

1N4742ARL 技术参数

1N4742ARL 数据手册

与1N4742ARL相关器件

与1N4742ARL相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

1N4742ARL

1N4742ARL 技术参数

1N4742ARL 数据手册

与1N4742ARL相关器件

与1N4742ARL相关文章

您还可以找

您在本页遇到什么问题？