SIYU
R
DO-34 Glass
DO-35 Glass
1N4148
开关二极管
Switching Diodes
特征 Features
·反向漏电流小。Low
reverse leakage
·开关速度快。Fast
switching speed
·最大功率耗散500mW。Maximum
power dissipation 500mW
·高稳定性和可靠性。High
stability and high reliability
·引线和管½皆符合RoHS标准 。
Lead and body according with RoHS standard
机械数据
Mechanical Data
封装: 玻璃封装
Unit：mm
Unit：mm
Case: Glass Case
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
Ratings at 25℃ ambient temperature unless otherwise specified.
1N4148
单½
Unit
不重复峰值反向电压
Non-repetitive Peak Reverse Voltage
V
RM
V
RRM
I
FM
I
O
I
FSM
Pd
R
θJA
Tj, T
STG
100
75
300
150
2.0
500
300
-55 --- +150
V
V
mA
mA
A
mW
℃/W
℃
反向峰值电压
peak repetitive Reverse Voltage
最大正向平均电流
Forward Continuous Current
平均整流输出电流
Average Rectified Output Current
正向（不重复）浪涌电流
Non-Repetitive Peak Forward Surge Current
功率消耗
Power Dissipation
典型热阻
Type Thermal Resistance
工½结温和存储温度
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.
符号
Symbols
最小值
MIN.
最大值
MAX.
单½
Unit
测试条件
Test Condition
正向电压
Forward voltage
V
FM
---
1.0
5.0
50
30
25
4.0
4.0
V
μA
μA
μA
nA
pF
nS
I
F
=10mA
V
R
= 75V
V
R
= 70V, Tj=150℃
V
R
= 20V, Tj=150℃
V
R
= 20V
V
R
= 0, f = 1.0MHz
I
F
= 10mA
—
I
R
= 1.0mA
V
R
= 6.0V, R
L
=100Ω
反向电流
Reverse current
I
RM
Cj
trr
---
---
---
结电容
Junction capacitance
Reverse Recovery Time
反向恢复时间
大昌电子
DACHANG ELECTRONICS
SIYU
R
特性曲线
Characteristic Curves
正向特性曲线（典型值）
TYPICAL FORWARD CHARACTERISTIC
1N4148
正向电流降额曲线
FORWARD CURRENT DERATING CURVE
1000
I
F
Instantaneous Forward Current (mA)
平均正向电流
I
F(AV)
(A)
Average Forward Rectified Current (A)
I
F(A)
0.36
0.30
0.24
0.18
0.12
0.06
0
0
25
50
75
100 125 150 175
环境温度 Ta(°C)
Tamb, ambient temperature (°C)
200
100
正向电流
I
F
(mA)
20
Tj = 25 °C
10
1
0.6
0.8
1
1.2
1.4
1.6
正向电压 V
F
(V)
V
F
Instantaneous Forward Voltage (V)
大昌电子
DACHANG ELECTRONICS
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