V351DHB34

更新时间： 2024-01-21 01:27:59

品牌	Logo	应用领域
力特 - LITTELFUSE		压敏电阻
页数	文件大小	规格书
5页	98K
描述
Varistor Products - High Energy Industrial

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V351DHB34 数据手册

Varistor Products

High Energy Industrial

DHB34 Varistor Series

Power Dissipation Ratings

Should transients occur in rapid succession, the average power

dissipation result is simply the energy (watt-seconds) per pulse times the

number of pulses per second. The power so developed must be within

the specifications shown on the Device Ratings and Specifications table

for the specific device. The operating values must be derated as shown

in Figure 1.

100

TIME

= Virtual Origin of Wave

T = Time From 10% to 90% of Peak

= Virtual Front time = 1.25 • t

= Virtual Time to Half Value (Impulse Duration)

Example: For an 8/20µs Current Waveform:

8µs = T = Virtual Front Time

20µs = T = Virtual Time to Half Value

FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM

Transient V-I Characteristics Curves

10000

TA = -55 C to 85C

Maximum Clamping Voltage

DHB34 Series

110 to 750V AC Rating

V751

V661 V681

V571

Voltage

Volts

V551

V511

1000

V481

V111

V131

V141

V441

V151

Current - AMPS

100

0.001

0.01

0.1

100

1000

10000

100000

V421

V391 V351 V331 V321 V301V271

V251 V201 V181

FIGURE 3. CLAMPING VOLTAGE FOR DHB34 SERIES

www. lit t elf us e. c om

112

1 2 345

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