Document
SMD Type
Rectifier Diodes US2A ~ US2M
Diodes
■ Features
● Super Fast Switching For High Efficiency ● Low Forward Voltage Drop And High Current Capability
● Low Reverse Leakage Current ● Glass Passivated Chip
DO-214AA(SMB)
2.108 1.905
2
4.699 4.064
3.937 2.30 1 3.302 2.10
Unit: mm 4.12 3.92
5.588 5.080
2.348 2.108
2.65 2.45 5.59 5.39
Recommended Land Pattern
1.270 0.762
0.203 0.051
0.305 0.152
■ Absolute Maximum Ratings Ta = 25℃
Parameter
Repetitive Peak Reverse Voltage RMS Voltage Maximum DC Blocking Voltage Forward Voltage@ TJ=25℃ IFM=2A Averaged Forward Current.@ TL=110℃ Peak Forward Surge Current @ 8.3ms Maximum DC Reverse Current TJ=25℃
TJ=125℃ Maximum Reverse Current (Note.1) Typical Junction Capacitance (Note.2) Thermal Resistance.Junction- to-Ambient Junction Temperature Storage Temperature
Note.1: IF=0.5A, IR=1.0A,Irr=0.25A Note.2: Measured at 1.0MHz, VR=4.0V
Symbol US2A US2B US2C US2D US2G US2J US2K US2M Unit
VRRM VRMS VDC
VF IFAV IFSM
IR
trr Cj RthJA Tj Tstg
50 100 150 200 400 600 800 1000
35 70 105 140 280 420 560 700 50 100 150 200 400 600 800 1000
V
1 1.4 1.7
2 A
50
5 μA
350
50 100 ns
28 pF
20 ℃/W
150 -55 to 150
℃
■ Marking
NO. Marking
US2A US2A
US2B US2B
US2C US2C
US2D US2D
US2G US2G
US2J US2J
US2K US2K
US2M US2M
www.kexin.com.cn 1
SMD Type
Diodes
Rectifier Diodes
US2A ~ US2M
■ Typical Characterisitics
Figure 1 Typical Forward Characteristics
20
10 6 4
2
Amps 1 .6 .4
US2A-2D
US2G
US2J
US2K US2M
.2 .1 T J=25 °C .06 .04
.02
.01 .6
.8 1.0 1.2 1.4 1.6 Volts
Instantaneous Forward Current - Amperesversus Instantaneous Forward Voltage - Volts
Figure 2 Forward Derating Curve
2.4
2.2 2.0
1.8 1.6 1.4
1.2 Amps 1.0
.8
.6
.4 Single Phase, Half Wave
.2 60Hz Resistive or Inductive Load
0 0
25 50 75 100 125
150 °C
Average Forward Rectified Current - Amperesversus Lead Temperature -°C
Figure 3 Junction Capacitance
100 60 40
20 pF 10
6 4
2 1
.1 .2 .4
12 Volts
4
10 20 40
Junction Capacitance - pFversus Reverse Voltage - Volts
T J=25 °C
100 200 400
1000
2 www.kexin.com.cn
SMD Type
Rectifier Diodes
■ Typical Characterisitics
US2A ~ US2M
Figure 4 Peak Forward Surge Current 50
40
30
20 Amps 10
5
0 12
4 6 8 10 20 40 60 80 100
Cycles
Peak Forward Surge Current - Amperesversus Number Of Cycles At 60Hz - Cycles
Diodes
Figure 5 Reverse Recovery Time Characteristic And Test Circuit Diagram
50Ω 10Ω
25Vdc
1Ω
Notes: 1. Rise Time = 7ns max. Input impedance = 1 megohm, 22pF 2. Rise Time = 10ns max. Source impedance = 50 ohms 3. Resistors are non-inductive
Pulse Generator
Note 2
Oscilloscope Note 1
+0.5A
0 -0.25
trr
-1.0
1cm Set Time Base for 20/100ns/cm
www.kexin.com.cn 3
.