R
SIYU
HER251G ...... HER258G
Plastic High-Efficiency Rectifiers
Reverse Voltage 50 to 1000V
Forward Current 2.5A
塑封高效率整流二极管
反向电压50 ---1000 V
正向电流2.5 A
特征 Features
·玻钝芯片 Glass passivated chip
DO-15L
·反向漏电流低 Low reverse leakage
·正向浪涌承受能力较强 High forward surge capability
·高温焊接保证 High temperature soldering guaranteed:
25.4
MIN
0.8±0.1
260
260
℃
℃
/10
/10 seconds, 0.375" (9.5mm) lead length,
(2.3kg) 拉力。5 lbs. (2.3kg) tension
秒, 0.375" (9.5mm)引线长度。
7.5±0.2
·引线可承受5 磅
4.0±0.2
·引线和管体皆符合RoHS标准 。
Lead and body according with RoHS standard
25.4
MIN
机械数据 Mechanical Data
·端子
·极性
:
:
镀锡轴向引线 Terminals: Plated axial leads
Unit
:mm
色环端为负极 Polarity: Color band denotes cathode end
·安装位置: 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 Ratings at 25
℃
ambient temperature unless otherwise specified.
HER
HER
HER
HER
HER
HER
HER
HER
符号
Symbols
单位
Unit
251G
252G 253G 254G 255G 256G 257G
258G
最大可重复峰值反向电压
Maximum repetitive peak reverse voltage
V
VRRM
VRMS
50
35
50
100
70
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
300
210
300
最大均方根电压
Maximum RMS voltage
V
V
最大直流阻断电压
Maximum DC blocking voltage
100
1000
VDC
IF(AV)
IFSM
最大正向平均整流电流
Maximum average forward rectified current
A
A
2.5
80
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
℃/W
典型热阻 Typical thermal resistance
RθJA
15
工作结温和存储温度
Tj, TSTG
-55 --- +150
℃
Operating junction and storage temperature range
电特性 TA = 25
℃除非另有规定。
Electrical Characteristics Ratings at 25℃ambient temperature unless otherwise specified.
HER
HER
HER
HER
HER
HER
HER
HER
符号
Symbols
单位
Unit
251G 252G 253G 254G 255G 256G 257G
258G
最大正向电压
Maximum forward voltage
IF = 2.5A
1.3
1.0
1.7
VF
IR
V
μA
nS
pF
最大反向电流
TA= 25℃
5.0
TA=125℃
Maximum reverse current
200
IF=0.5A IR=1.0A IRR=0.25A
VR = 4.0V, f = 1MHz
最大反向恢复时间
MAX. Reverse Recovery Time
trr
Cj
50
80
75
50
典型结电容
Type junction capacitance
大昌电子 DACHANG ELECTRONICS