MMT10V275 Datasheet, PDF (3/4 Pages) Motorola, Inc – BIDIRECTIONAL THYRISTOR SURGE SUPPRESSORS 25 WATTS STEADY STATE

600
550
500
450
400
350
300
250
200
0 10 20 30 40 50 60 70 80
TJ, JUNCTION TEMPERATURE (°C)
Figure 2. Typical Holding Current
MMT10V275 MMT10V400
0
–1
TYPICAL
–2
–3
TYPICAL LOW
–4
200 250 300 350 400 450 500 550 600
IH, HOLDING CURRENT AT 0°C (mA)
Figure 3. Holding Current Temperature Coefficient
1.2
The thermal coefficient of VF(BR) is similar to that of a zener
1.15
diode. IBO falls with temperature, reducing the zener
impedance contribution to V _BO. This causes the V _BO
temperature coefficient perature to be less than or equal to the
1.1
VF(BR) coefficient. The graph allows the estimation of the
maximum voltage rise of either parameter.
1.05
1
0.95
NORMALIZED
TO 25°C
0.9
– 20 0
20 40 60 80 100
TJ, JUNCTION TEMPERATURE (°C)
120 140
Figure 4. Normalized Maximum 60 Hz VBO
versus Junction Temperature
10
Note: The behavior of the breakover current during AC operation
is complex, due to junction heating, case heating and thermal
interaction between the device halves. Microplasma conduction
at the beginning of breakdown sometimes results in higher local
current densities and earlier than predicted switching. This
reduces power dissipation and stress on the device.
1
MAXIMUM IBO = 1.0 A
at 25°C
FIRST HALF–CYCLE
f = 60 Hz
VOC = 1000 V (rms)
IOC = 1.0 A (rms)
0.1
– 40 – 20 0 20
MINIMUM IBO UNIT
40 60 80 100 120 140 160
TJ, JUNCTION TEMPERATURE PRIOR TO TEST (°C)
Figure 5. Temperature Dependence of 60 Hz
Breakover Current
Motorola Thyristor Device Data
3