Datasheet > V251DB40

V251DB40

更新时间： 2024-10-05 12:20:23

品牌	Logo	应用领域
力特 - LITTELFUSE		压敏电阻
页数	文件大小	规格书
4页	119K
描述
Industrial High Energy Terminal Varistors

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V251DB40 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	RADIAL LEADED
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8533.40.40.00	风险等级：	1.83
电路直流最大电压：	330 V	电路RMS最大电压：	250 V
最大能量吸收容量：	370 J	JESD-609代码：	e3
安装特点：	CHASSIS MOUNT	端子数量：	2
最高工作温度：	85 °C	最低工作温度：	-55 °C
封装高度：	23 mm	封装长度：	60.3 mm
封装形式：	Module-q	封装宽度：	46.8 mm
额定温度：	85 °C	电阻器类型：	VARISTOR
表面贴装：	NO	技术：	METAL OXIDE FILM
端子面层：	Matte Tin (Sn)	端子形状：	LUG
Base Number Matches：	1

V251DB40 数据手册

Varistor Products

Industrial High Energy Terminal Varistors > DA/DB Series

RoHS

DA/DB Varistor Series

Description

DA SERIES

The DA and DB Series transient surge suppressors

are heavy-duty industrial Metal-Oxide Varistors

(MOVs) designed to provide surge protection for

motor controls and power supplies used in oil-

drilling, mining, and transportation equipment.

These UL recognized varistors have identical ratings

and speciﬁcations but differ in case construction

to provide ﬂexibility in equipment designs.

DB SERIES

DA Series devices feature rigid terminals to ensure

secure wire contacts. Both the DA and DB Series feature

improved creep and strike distance capability to minimize

breakdown along the package surface design that provides

complete electrical isolation of the disc subassembly.

Agency Approvals

Agency

Agency File Number

See DA/DB Series Device Ratings and Speciﬁcations

table for part number and brand information.

E320116

Features

•

RoHS compliant

and Lead–free

•

Screw terminals (DA

Series),quick connect

push-on connectors

(DB Series)

•

High energy

absorption capability

W_TMup to 1050J

Case design provides

complete electrical

isolation of disc

•

Wide operating

voltage range

V_M(AC)RMS130V to 750V

subassembly

•

40mm diameter disc

No derating up to

85ºC ambient

Absolute Maximum Ratings

• For ratings of individual members of a series, see Device Ratings and Speciﬁcations chart

Continuous

DA/DB Series

Units

Steady State Applied Voltage:

AC Voltage Range (V_M(AC)RMS

)

130 to 750

175 to 970

DC Voltage Range (V_M(DC)

)

Transients:

Peak Pulse Current (I_TM

)

For 8/20μs Current Wave (See Figure 2)

40,000

Single Pulse Energy Range

For 2ms Current Squarewave (W_TM

Operating AmbientTemperature Range (T_A)

StorageTemperature Range (T_STG

)

270 to 1050

-55 to +85

-55 to +125

<0.01

ºC

)

ºC

Temperature Coefﬁcient (a^V) of Clamping Voltage (V_C) at SpeciﬁedTest Current

%/ºC

Hi-Pot Encapsulation (COATING Isolation Voltage Capability)

5000

1000

(Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)

COATING Insulation Resistance

MΩ

CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This

is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational

sections of this speciﬁcation is not implied.

DA/DBVaristor Series

Speciﬁcations are subject to change without notice.

Please refer to www.littelfuse.com/series/da or /db.html for current information.

Revision: October 29, 2009

12 3 4

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V251DB40 替代型号

型号	品牌	替代类型	描述	数据表
90065-014	LITTELFUSE	功能相似	Varistor, 270J, Chassis Mount

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