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HER257 Plastic High-Efficiency Rectifiers Reverse Voltage 50 to 1000V Forward Current 2.5A
Prototype PCB
Part No.:   HER257
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Description:   Plastic High-Efficiency Rectifiers Reverse Voltage 50 to 1000V Forward Current 2.5A
File Size :   119 K    
Page : 2 Pages
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Maker   DACHANG [ RUGAO DACHANG ELECTRONICS CO., LTD ]http://www.dachang.com.cn
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  HER257 Datasheet PDF page 2  
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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
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