BT151
TYPICAL CHARACTERISTICS
(Cont.)
Fig 7. Normalised Gate Trigger Current I
GT
(T
J
)/
I
GT
(25
°
C), Versus Junction Temperature T
J
I
GT
(T
J
)
I (25
°
C)
3
GT
2.5
2
1.5
1
0.5
0
-50
0
50
T
J
/
°
C
100
150
Fig 8. Normalised Latching Current
I
L
(T
J
)/I
L
(25
°
C),
Versus Junction Temperature T
J
I
L
(T
J
)
I
L
(25
°
C)
3
2.5
2
1.5
1
0.5
0
-50
0
50
T
J
/
°
C
100
150
SCR
Fig 9. Normalised Holding Current I
H
(T
J
)/I
H
(25
Versus Junction Temperature T
J
3
I
H
(T
J
)
I
H
(25
°C
)
),
Fig 10. Typical and Maximum On-State
Characteristic
30 I
T
/A
T
J
=125
°C
25 T
J
=25
°C
20
15
10
5
typ
max
2.5
2
1.5
1
0.5
0
-50
0
50
T
J
/
°
C
100
150
0
0
0.5
1
VT/V
1.5
2
Fig 11.Transient Thermal Impedance Zthj-mb,
Versus Pulse Width tp
Zth j-mb(K/W)
10
1
0.1
PD
0.01
t
0.001
10us 0.1ms 1ms 10ms 0.1s 1s
10s
Fig 12. Typical, Critical Rate Of Rise
Of Off-State Voltage, dV
D
/dt Versus
Junction Temperature T
J
dVD/dt(V/µs)
10000
1000
R
GK
=100Ω
tp
100
gate open circuit
10
0
50
T
J
/°C
100
150
tp/s
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