1. Product profile
1.1 General description
Passivated, sensitive gate triacs in a SOT54 plastic package
1.2 Features
a73 Designed to be interfaced directly to microcontrollers, logic integrated circuits and
other low power gate trigger circuits.
1.3 Applications
a73 General purpose switching and phase control
1.4 Quick reference data
2. Pinning information
BT131 series
Triacs logic level
Rev. 08 — 9 September 2005 Product data sheet
a73 V
DRM
≤ 600 V (BT131-600) a73 I
T(RMS)
≤ 1A
a73 V
DRM
≤ 800 V (BT131-800) a73 I
TSM
≤ 12.5 A
Table 1: Pinning
Pin Description Simplified outline Symbol
1 main terminal 2 (T2)
SOT54 (TO-92)
2 gate (G)
3 main terminal 1 (T1)
123
sym051
T1
G
T2