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1SS108  
Silicon Schottky Barrier Diode for Various Detector,  
High Speed Switching  
ADE-208-154A (Z)  
Rev. 1  
Features  
•
•
•
Detection efficiency is very good.  
Small temperature coefficient.  
High reliability with glass seal.  
Ordering Information  
Type No.  
Cathode  
2nd band  
Mark  
Package Code  
DO-35  
1SS108  
White  
Black  
H
Outline  
2
1
2nd band  
Cathode band  
1. Cathode  
2. Anode  
1SS108  
Absolute Maximum Ratings  
(Ta = 25°C)  
Item  
Symbol  
Value  
Unit  
V
Reverse voltage  
Average rectified current  
Junction temperature  
Storage temperature  
VR  
IO  
30  
15  
mA  
°C  
Tj  
125  
Tstg  
–55 to +125  
°C  
Electrical Characteristics  
(Ta = 25°C)  
Item  
Symbol Min  
Typ  
Max  
Unit  
mA  
µA  
Test Condition  
VF = 1V  
Forward current  
Reverse current  
Capacitance  
Rectifier efficiency  
IF  
IR  
C
η
3.0  
—
—
—
—
—
—
100  
3.0  
—
VR = 10V  
—
pF  
VR = 1V, f = 1MHz  
70  
%
Vin = 2Vrms, f = 40MHz, RL = 5kΩ,  
CL = 20pF  
ESD-Capability  
—
70  
—
—
V
*C = 200pF, Both forward and  
reverse direction 1 pulse.  
Note: Failure criterion; IR ≥ 200µA at VR = 10V  
10–1  
10–2  
10–3  
10–4  
10–5  
10–6  
1.2  
1.6  
0
0.4  
0.8  
2.0  
Forward voltage VF (V)  
Fig.1 Forward current Vs. Forward voltage  
2
1SS108  
10–2  
10–3  
10–4  
10–5  
10–6  
5
10  
15  
20  
25  
0
30  
Reverse voltage VR (V)  
Fig.2 Reverse current Vs. Reverse voltage  
f = 1MHz  
10  
1.0  
10–1  
10–1  
1.0  
Reverse voltage VR (V)  
10  
Fig.3 Capacitance Vs. Reverse voltage  
3
1SS108  
100  
80  
60  
40  
20  
0
0
0.5  
1.5  
2.5 3.0  
1.0  
2.0  
Input voltage Vin (Vrms)  
Fig.4 Rectifier efficiency Vs. Input voltage  
4
1SS108  
Package Dimensions  
Unit: mm  
26.0 Min  
26.0 Min  
4.2 Max  
1
2
1 Cathode  
2 Anode  
2nd band (Black)  
Cathode band (White)  
HITACHI Code  
JEDEC Code  
EIAJ Code  
DO-35  
DO-35  
SC-48  
0.13  
Weight (g)  
5