Slotted Photointerrupters LTH-301-20/LTH-301-24/LTH-306-04 Features Non-contact switching. For direct PC board or dual-in-line socket mounting. Fast switching speed. Application Printer Scanner Disk driver Description The LTH-301/LTH-306 series consist of Gallium Arsenide infrared emitting diode and a NPN sillicon phototransistor mounted in a black plastic housing. Phototransistor switching takes place whenever an opaque object passes through the slot. The LTH-301A series is designed for direct soldering into PC board or mounting in standard dualin-line socket. Package Dimensions LTH-301-24 PHOTOINTERRUPTERS LTH-301-20 LTH-306-04 Notes: 1.All dimensions are in millimeters (inches). 2.Tolerance is 0.25 mm (.010"). 3.Lead spacing is measured where the leads emerge from the package. 4.Specifications are subject to change without notice. 11-17 Absolute Maximum Ratings at Ta=25 Parameter Symbol Maximum Rating Unit Continuous Forward Current IF 60 mA Reverse Voltage VR 5 V I CP 1 A Power Dissipation PD 75 mW Collector Current IC 20 mA Output Power Dissipation PC 100 mW phototransistor Collector-emitter Voltage VCEO 30 V Emitter-collector Voltage VECO 5 Input LED Peak Forward Current (Pulse Wide=10 S,300PPS) V Operating Temperature Range Topr -25 to + 85 Storage Temperature Range Tstg -40 to + 100 Lead Soldering Temperature [1.6mm(.063 in.)from body] Ts 260 for 5 Seconds Electrical Optical Characteristics at Ta=25 Parameter Symbol Part No. Min. Typ. Max. Unit Test Condition V IF=20mA Input LED Forward Voltage VF Reverse Current IR 100 I CEO 100 1.2 1.6 A VR=5V Output phototransistor Collector Dark Current nA VCE=10V Coupler Collector-Emitter Saturation Voltage On State Collector Current Response Time 11-18 V CE(sat) IC(ON) LTH-301-20 0.4 LTH-301-24 0.4 LTH-306-04 0.4 LTH-301-20 0.07 LTH-301-24 0.7 LTH-306-04 0.5 IC=0.035mA,IF=20mA V IC=0.35mA,IF=20mA IC=0.25mA,IF=20mA 0.15 20 mA VCE=5V,IF=20mA S VCE=5V,IC=2mA RL=100 2 Rise Time tr 3 15 Fall Time tf 4 20 PHOTOINTERRUPTERS Typical Electrical/Optical Characteristic Curves (25 Ambient Temperature Unless Otherwise Noted) 11-19 Typical Electrical/Optical Characteristic Curves (25 Ambient Temperature Unless Otherwise Noted) 11-20