The ST-1MLA and 1MLB are high-sensitivity NPN silicon phototransistors mounted in TO-18 Type header with clear epoxy encapsulation. The phototransistors have a wide angular response and relatively low-cost compared to TO-18 can type devices.

FEATURES
• Wide angular response
• Relatively low-cost against metal can package
• Low profile package
• Two leads (Collector, Emitter) ST-1MLA
• Three leads (Collector, Emitter, Base) ST-1MLB

APPLICATIONS
• Optical counters
• Infrared sensors
• Camera stroboscopes