BT138Y-800E
4Q Triac
1 May 2015
Product data sheet
1. General description
Planar passivated sensitive gate four quadrant triac in an internally insulated SOT78D
(TO-220AB) plastic package intended for use in general purpose bidirectional switching
and phase control applications. This sensitive gate "series E" triac can be interfaced
directly to microcontrollers, logic integrated circuits and other low power gate trigger
circuits. The internally insulated mounting base gives good thermal performance
combined with ease of handling and assembly by the user.
2. Features and benefits
• 2500 V RMS isolation voltage capability
• Direct interfacing to logic level ICs
• Direct interfacing to low power gate drivers and microcontrollers
• High blocking voltage capability
• Industry standard TO-220 package for ease of handling
• Isolated mounting base
• Planar passivated for voltage ruggedness and reliability
• Sensitive gate
• Triggering in all four quadrants
3. Applications
• 230 V lamp dimmers
• General-purpose switching and phase control
4. Quick reference data
Table 1. Quick reference data
Symbol
Parameter
Conditions
VDRM
repetitive peak off-
state voltage
ITSM non-repetitive peak on- full sine wave; Tj(init) = 25 °C;
state current
tp = 20 ms; Fig. 4; Fig. 5
IT(RMS)
RMS on-state current full sine wave; Tmb ≤ 85 °C; Fig. 1;
Fig. 2; Fig. 3
Static characteristics
IGT
gate trigger current
VD = 12 V; IT = 0.1 A; T2+ G+;
Tj = 25 °C; Fig. 7
Min Typ Max Unit
- - 800 V
- - 95 A
- - 12 A
- - 10 mA
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