Description
Features
Mechanical Dimensions
Electrical Characteristics @ 25
o
C.
Maximum Ratings
Peak Repetitive Reverse Voltage...V
RRM
RMS Reverse Voltage...V
R(rms)
DC Blocking Voltage...V
DC
HER301 . . . 305 Series
Average Forward Rectified Current...I
F(av)
T
A
= 55
C
Non-Repetitive Peak Forward Surge Current...I
FSM
@ Rated Current & Temp
Forward Voltage @ 3.0A...V
F
DC Reverse Current...I
R
T
A
= 25
C
@ Rated DC Blocking Voltage
T
A
= 100
C
Typical Junction Capacitance...C
J
Typical Thermal Resistance...R
JC
(Note 1)
Typical Reverse Recovery Time...t
RR
(Note 2)
Operating & Storage Temperature Range...T
J
, T
STRG
Page 4-26
HER301 . . . 305 Series
HER301
HER302
HER303
HER304
HER305
50
100
200
300
400
35
70
140
210
280
50
100
200
300
400
Data Sheet
3.0 Amp SUPER FAST
PLASTIC RECTIFIERS
Units
............................................. 3.0 ...............................................
............................................. 150 ...............................................
............................................. 1.0 ...............................................
............................................. 10 ...............................................
............................................. 200 ...............................................
............................................. 80 ...............................................
............................................. 1.0 ...............................................
............................................. 50 ...............................................
......................................... -65 to 150 ..........................................
Volts
Volts
Volts
Amps
Amps
Volts
Amps
Amps
pF
C / W
nS
C
n LOW COST
n LOW LEAKAGE
n HIGH SURGE CAPABILITY
n MEETS UL SPECIFICATION 94V-0
D027A
.374
.197
.050
1.00 Typ.
Data Sheet
3.0 Amp SUPER FAST
PLASTIC RECTIFIERS
HER301 . . . 305 Series
Page 4-27
NOTES: 1. Measured @ 1 MHZ and applied reverse voltage of 4.0V.
2. Conditions: I
F
= 0.5A, I
R
= 1.0A, I
RR
= 0.25A.
Ratings at
25 Deg. C ambient
temperature
unless otherwise
specified.
Single Phase Half
Wave, 60 HZ
Resistive or
Inductive Load.
For Capacitive
Load, Derate
Current by 20%.
Forward Current Derating Curve
6
4
2
0
25
50
75 100
150
125
175
T
A
= Ambient Temperature (
C)
Amps
pF
Reverse Voltage (Volts)
Typical Junction Capacitance
Amps
Non-Repetitive
Peak Forward Surge Current
Number of Cycles @ 60 HZ
Reverse Recovery
Characteristics
Typical Instantaneous
Forward Characteristics
Oscilliscope
Note 1
Pulse
Generator
Note 2
(-)
(+)
Notes:
1. Rise Time = 7 nS Max.
Impedance = 1 megohm, 22 pF
2. Rise Time = 10 nS Max.
Source Impedance = 50 Ohms
Time Base Set @ 50/100nS/cm
+.5A
0A
-.25A
-1.0A
1 cm
Typical Reverse Characteristics
mAmps
t
RR
Amps
Volts
50
(-)
(+)
25 VDC
Non-Inductive
1
Non-
Inductive
D.U.T 10
Percent of Rated Peak Voltage
T
J
= 150
C
T
J
= 100
C
T
J
= 25
C
T
J
= 25
C
T
J
= 25
C
Pulse Width = 300
s
% Duty Cycle
PDF 
ZIP