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Dated : 03/07/2003
H
SEMTECH ELECTRONICS LTD.
(Subsidiary of Semtech International Holdings Limited, acompany
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
HER201 THRU HER208
Fig. 1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
RATINGS AND CHARACTERISTIC CURVES
NOTES:1. Rise Time=7ns max. Input Impedance=
1 megohm 22 pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
1
NON
INDUCTIVE
(+)
25Vdc
(appox)
(-)
50
NONINDUCTIVE
DUT
PULSE
GENERATOR
(NOTE 2)
OSCILLOSCOPE
(NOTE 1)
(+)
-1.0A
10
NONINDUCTIVE
-0.25A
(-)
0
+0.5A
AMBIENT TEMPERATURE, C
Fig.2 - TYPICAL FORWARD
CURRENT DERATING
SET TIME BASE FOR
10/20ns/cm
1cm
0
trr
50
25
75
o
125
100
150 175
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
2.0
4.0
Fig. 5-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
NUMBER OF CYCLES AT 60Hz
2
1
10
0
20
40
30
50
60
70
8.3ms Single Half Sine Wave
JEDEC Method
20
10
5
50
100
HER206
~HER20
8
HER20
1~HER
205
Fig. 6-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE. (V)
0.1
2
6
1
4
60
40
10
20
4
1
0.4
0.2
2
Tj =25 C
200
100
100
40
20
10
Tj=25 C
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
0.01
20
40
0.1
1
120
60
80
100
o
140
Fig. 3-TYPICAL REVERSE CHARACTERISTICS
Tj=150 C
10
100
o
Tj=100 C
o
PULSE WIDTH =300 s,
1% DUTY CIRCLE
Tj = 25 C
1.2
FORWARD VOLTAGE, (V)
0.2
0.001
0
0.01
0.1
0.4
0.6
0.8
1.0
1.6
1.4
1.8
Fig. 4-TYPICAL FORWARD CHARACTERISTICS
1.0
10
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