ACT108W-800E
AC Thyristor power switch
3 March 2017 Product data sheet
1. General description
AC Thyristor power switch in a SOT223 surface-mountable plastic package with self-protective
capabilities against low and high energy transients.
2. Features and benefits
• Common terminal on mounting base allows multiple ACTs on shared cooling pad
• Exclusive negative gate triggering
• Full cycle AC conduction
• High voltage capability
• Remote gate separates the gate driver from the effects of the load current
• Safe clamping of low energy over-voltage transients
• Self-protective turn-on during high energy voltage transients
• Surface-mountable package
• Very high noise immunity
3. Applications
• Fan motor circuits
• Pump motor circuits
• Lower-power highly inductive, resistive and safety loads
• Contactors, circuit breakers, valves, dispensers and door locks
4. Quick reference data
Table 1. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
V
DRM
repetitive peak off-
state voltage
- - 800 V
I
T(RMS)
RMS on-state current full sine wave; T
sp
≤ 112 °C; Fig. 1;
Fig. 2; Fig. 3
- - 0.8 A
full sine wave; T
j(init)
= 25 °C;
t
p
= 20 ms; Fig. 4; Fig. 5
- - 13 AI
TSM
non-repetitive peak on-
state current
full sine wave; T
j(init)
= 25 °C;
t
p
= 16.7 ms
- - 14.3 A
T
j
junction temperature - - 125 °C
V
PP
peak pulse voltage T
j
= 25 °C; non-repetitive, off-state; ten
pulses on each voltage polarity; 20s
or more between successive pulses;
Fig. 6
- - 2.5 kV
Static characteristics