DS25003 Rev. 7 - 4 1 of 3 HER301-HER305
www.diodes.com ã Diodes Incorporated
Features
Mechanical Data
·Case: Molded Plastic
·Terminals: Plated Axial Leads, Solderable per
MIL-STD-202, Method 208
·Polarity: Color Band Denotes Cathode
·Approx. Weight: 1.2 grams
Ratings at 25° C ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
Maximum Ratings and Electrical Characteristics
Characteristic Symbol HER301 HER302 HER303 HER304 HER305 Unit
Maximum Recurrent Peak Reverse Voltage VRRM 50 100 200 300 400 V
Maximum RMS Voltage VRMS 35 70 140 210 280 V
Maximum DC Blocking voltage VDC 50 100 200 300 400 V
Maximum Average Forward Rectified Current 9.5mm Lead
Length @ TA=50°C I(AV) 3.0 A
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load
(JEDEC method)
IFM 125 A
Maximum Instantaneous Forward Voltage at 3.0 A DC VF1.1 V
Maximum DC Reverse Current at Rated DC Blocking
Voltage @ TA = 25°C IR10 µA
Maximum Full Load Reverse Current Full Cycle Average
9.5mm Lead Length @ TC = 55°C IR150 µA
Maximum Reverse Recovery Time (Note 1) TRR 50 nS
Typical Junction Capacitance (Note 2) CJ70 pF
Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C
Notes: 1. Reverse Recovery Test Conditions: IF =0.5 A, IR =1.0 A, IRR=0.25A
2. Measured at 1 MHz and applied reverse voltage of 4.0 volts.
·Low Power Loss, High Efficiency
·Low Leakage
·Low Forward Voltage Drop
·High Current Capability
·High Speed Switching
·High Surge Current Rating
·Plastic Material - UL Flammability
Classification 94V-0
AA
B
C
D
HER301 - HER305
3.0A HIGH EFFICIENCY RECTIFIER
DO-201AD
Dim Min Max
A25.4 —
B— 9.5
C1.2 1.3
D4.8 5.2
All Dimensions in mm
DISCONTINUED NOT RECOMMENDED
FOR NEW DESIGNS, USE UF3001 - UF3007
DS25003 Rev. 7 - 4 2 of 3 HER301-HER305
www.diodes.com
0
100
175
1 10 100 1000
I , PEAK FORWARD SURGE CURRENT (A)
FSM
NUMBER OF CYCLES AT 60 Hz
Fig. 4, Max. Non-Repetitive Peak Forward Surge Current
0
0 25 50 75 100 125 150 175
I , AVERAGE FORWARD CURRENT (A)
AV
T , AMBIENT TEMPERATURE (°C)
A
Fig. 1, Typical Forward Current Derating Curve
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.5
1.0
1.5
2.0
2.5
3.0
0
25
50
75
100
125
150
175
0.1 1.0 10 100 1000
C , JUNCTION CAPACITANCE (pF)
J
V , REVERSE VOLTAGE (V)
R
Fig. 5, Typical Junction Capacitance
0.01
0.1
1.0
10
100
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
I , INSTANTANEOUS FORWARD CURRENT (A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
Fig. 3, Typ. Instantaneous Forward Characteristics
T = 25°C
J
0.01
0.1
1.0
10
100
1000
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fig. 2, Typical Reverse Characteristics
T = 150°C
J
T = 100°C
J
T = 25°C
J
DISCONTINUED NOT RECOMMENDED
FOR NEW DESIGNS, USE UF3001 - UF3007
DS25003 Rev. 7 - 4 3 of 3 HER301-HER305
www.diodes.com
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
DISCONTINUED NOT RECOMMENDED
FOR NEW DESIGNS, USE UF3001 - UF3007
