OPB848TX

Product Bulletin OPB847TX/TXV September 1996 Hi-Rel Slotted Optical Switches Types OPB847TX, OPB847TXV, OPB848TX, OPB848TXV Features • Non-contact switching • Apertured for high resolution • Hermetically sealed components • Components processed to Optek’ s screening program patterned after MIL-PRF-19500 for TX and TXV devices Absolute Maximum Ratings (TA = 25o C unless otherwise noted) Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65o C to +125o C Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65o C to +150o C Lead Soldering Temperature [1/16 inch (1.6 mm) from case 5 sec. with soldering iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240o C Input Diode Forward DC Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW(2) Output Phototransistor Collector-Emitter Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V Emitter-Collector Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 V Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW(2) Notes: (1) Duration can be extended to 10 sec. max. when flow soldering. (2) Derate linearly 1.00 mW/o C above 25o C. (3) Methanol and isopropanol are recommended as cleaning agents. Description The OPB847TX, OPB847TXV, OPB848TX, and OPB848TXV each consist of a gallium aluminum arsenide LED and a silicon phototransistor soldered into a printed circuit board then mounted in a high temperature plastic housing on opposite sides of a 0.100 inch (2.54 mm) wide slot. Phototransistor switching takes place whenever an opaque object passes through the slot. Both device types have a 0.025 inch (0.635 mm) by 0.06 (1.52 mm) aperture in front of the phototransistor for high resolution positioning sensing. The OPB847TX, OPB847TXV, OPB848TX, and OPB848TXV use optoelectronic components that have been processed and tested as either TX or TXV components per MIL-PRF-19500. Typical screening and lot acceptance tests are provided on page 13-4. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 13-40 (972) 323-2200 Fax (972) 323-2396 Types OPB847TX, OPB847TXV, OPB848TX, OPB848TXV Electrical Characteristics (TA = 25o C unless otherwise noted) Symbol Input Diode Forward Voltage(4) VF 1.00 1.20 0.80 IR Reverse Current 1.35 1.55 1.20 0.1 1.70 1.90 1.60 100 V V V µA IF = 20.0 mA IF = 20.0 mA, TA = -55o C IF = 20.0 mA, TA = 100o C VR = 2.0 V Parameter Min Typ Max Units Test Conditions Output Phototransistor V(BR)CEO V(BR)ECO IC(off) 10 100 Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Collector-Emitter Dark Current 50 7.0 110 10.0 0.2 100 V V nA µA IC = 1.0 mA, IF = 0 IE = 100 µA, IF = 0 VCE = 10.0 V, IF = 0 VCE = 10.0 V, IF = 0, TA = 100o C Coupled On-State Collector Current(4) OPB847 OPB847 OPB847 IC(on) OPB848 OPB848 OPB848 VCE(SAT) Collector-Emitter Saturation Voltage Output Rise Time tr OPB848 Output Fall Time tf OPB848 8.0 15.0 OPB847 8.0 12.0 15.0 20.0 OPB847 OPB848 OPB847 4.0 2.5 2.5 1.0 0.6 0.6 0.20 0.20 12.0 0.30 0.30 20.0 mA mA mA mA mA mA V V µs µs µs µs VCC = 10.0 V, IF = 20.0 mA, RL = 1,000 Ω VCE = 10.0 V, IF = 20.0 mA VCE = 10.0 V, IF = 20.0 mA, TA = -55o C VCE = 10.0 V, IF = 20.0 mA, TA = 100o C VCE = 10.0 V, IF = 20.0 mA VCE = 10.0 V, IF = 20.0 mA, TA = -55o C VCE = 10.0 V, IF = 20.0 mA, TA = 100o C IC = 2.0 mA, IF = 20.0 mA IC = 500 µA, IF = 20.0 mA (4) Measurement is taken during the last 500 µs of a single 1.0 ms test pulse. Heating due to increased pulse rate or pulse width can cause change in measurement results. Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (972)323-2200 Fax (972)323-2396 13-41