STTH208U STMicroelectronics, STTH208U Datasheet - Page 3

• Manufacturer Part Number: STTH208U
• Description: DIODE ULT FAST 2A 800V SMB
• Manufacturer: STMicroelectronics

Specifications of STTH208U

• Voltage - Forward (vf) (max) @ If: 1.65V @ 2A
• Voltage - Dc Reverse (vr) (max): 800V
• Current - Average Rectified (io): 2A
• Current - Reverse Leakage @ Vr: 5µA @ 800V
• Diode Type: Standard
• Speed: Fast Recovery =< 500ns, > 200mA (Io)
• Reverse Recovery Time (trr): 75ns
• Mounting Type: Surface Mount
• Package / Case: DO-214AA, SMB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Capacitance @ Vr, F: -

Fig. 1: Conduction losses versus average current.
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Fig. 3-1: Relative variation of thermal impedance
junction ambient versus pulse duration (epoxy
FR4, L
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Fig. 4: Thermal resistance junction to ambient
versus copper surface under each lead (epoxy
printed circuit board FR4, copper thickness:
35µm).
110
100
90
80
70
60
50
40
30
20
10
1.E-01
0
0.0
0.0
P(W)
Z
R
th(j-c)
th(j-a)
= 0.5
= 0.2
= 0.1
0.2
leads
0.5
Single pulse
/R
(°C/W)
0.4
th(j-c)
= 10mm) (DO-15).
1.0
1.E+00
0.6
= 0.05
1.5
0.8
L
2.0
leads
1.0
DO-15
I
=10mm
F(AV)
= 0.1
1.E+01
S(cm²)
t (s)
p
1.2
2.5
(A)
SMB
1.4
= 0.2
3.0
1.6
3.5
1.E+02
= 0.5
1.8
=tp/T
4.0
=tp/T
2.0
T
T
4.5
2.2
= 1
tp
1.E+03
tp
2.4
5.0
Fig. 2: Forward voltage drop versus forward
current
100.0
Fig. 3-2: Relative variation of thermal impedance
junction ambient versus pulse duration (epoxy
FR4, S=1cm
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
10.0
1.E-01
1.0
0.1
0.00
Z
th(j-c)
I
FM
= 0.5
= 0.2
= 0.1
Single pulse
0.25
(A)
/R
th(j-c)
0.50
(typical values)
T =150°C
1.E+00
j
2
) (SMB).
0.75
1.00
(maximum values)
T =150°C
j
1.25
1.E+01
t (s)
p
1.50 1.75
V
FM
(V)
(maximum values)
2.00
T =25°C
j
1.E+02
2.25
STTH208/U
=tp/T
2.50
T
2.75
tp
1.E+03
3/5
3.00