SIYU

R

HER251 ...... HER258

Plastic High-Efficiency Rectifiers

Reverse Voltage 50 to 1000V

Forward Current 2.5A

特征

Features

·反向漏电流½

25.4

0.8±0.1

塑封高效率整流二极管

反向电压

50 ---1000 V

正向电流

2.5 A

DO-15L

Low reverse leakage

High forward surge capability

·正向浪涌承受½力较强

MIN

7.5±0.2

4.0±0.2

25.4

MIN

·高温焊接保证

High temperature soldering guaranteed:

260℃/10

秒,

0.375" (9.5mm)引线长度。

260℃/10 seconds, 0.375" (9.5mm) lead length,

·引线可承受5 磅

(2.3kg)

拉力。

5 lbs. (2.3kg) tension

·引线和管½皆符合RoHS标准 。

Lead and body according with RoHS standard

机械数据

Mechanical Data

Unit：mm

·端子: 镀锡½向引线

Terminals: Plated axial leads

·极性: 色环端为负极

Polarity: Color band denotes cathode end

·安装½½: 任意

Mounting Position: Any

极限值和温度特性

TA = 25℃

除非另有规定。

Maximum Ratings & Thermal Characteristics

符号

Symbols

最大可重复峰值反向电压

Maximum repetitive peak reverse voltage

Ratings at 25℃ ambient temperature unless otherwise specified.

HER

252

HER

253

HER

254

HER

255

HER

256

HER

257

HER

258

HER

251

单½

Unit

V

V

V

A

A

℃/W

V

RRM

50

35

50

100

70

100

200

140

200

300

210

300

2.5

400

280

400

600

420

600

800

560

800

1000

700

1000

最大均方根电压

Maximum RMS voltage

V

RMS

V

DC

I

F(AV)

I

FSM

R

θJA

Tj, TSTG

最大直流阻断电压

Maximum DC blocking voltage

最大正向平均整流电流

Maximum average forward rectified current

峰值正向浪涌电流 8.3ms单一正弦半波

Peak forward surge current 8.3 ms single half sine-wave

100

20

典型热阻

Typical thermal resistance

工½结温和存储温度

Operating junction and storage temperature range

-55--- +150

℃

电特性

TA = 25℃

除非另有规定。

Electrical Characteristics

Ratings at 25℃ ambient temperature unless otherwise specified.

符号

Symbols

最大正向电压

Maximum forward voltage

HER

251

HER

252

HER

253

HER

254

HER

255

HER

256

HER

257

HER

258

单½

Unit

V

μA

I

F

= 2.5A

TA= 25℃

TA=100℃

I

F

=0.5A I

R

=1.0A I

RR

=0.25A

V

F

I

R

trr

C

j

1.0

1.3

5.0

200

1.7

最大反向电流

Maximum reverse current

最大反向恢复时间

MAX. Reverse Recovery Time

50

50

75

30

nS

pF

典型结电容

Type junction capacitance

V

R

= 4.0V, f = 1MHz

大昌电子

DACHANG ELECTRONICS