Dual Element Axial Vactrols VTL5C2/2, 5C3/2 PACKAGE DIMENSIONS INCH (MM) PLASTIC POTTING CONTOUR NOT CONTROLLED DESCRIPTION VTL5C2/2 features a very steep slope, low temperature coefficient of resistance, and a small light history memory. VTL5C3/2 has a steep slope, good dynamic range, a very low temperature coefficient of resistance, and a small light history memory. ABSOLUTE MAXIMUM RATINGS 25C LED Forward Voltage Drop 20 mA: 2.0V (1.65V Typ.) Maximum Temperatures Storage and Operating: 40C to 75C Min. Isolation Voltage 70% Rel. Humidity: 2500 VRMS Cell Power: 175 mW Derate above 30C: 3.9 mW/C Output Cell Capacitance: 5.0 pF 1 LED Current: 40 mA Derate above 30C: 0.9 mA/C Cell Voltage: 50V (VTL5C2/2), 100V (VTL5C2/3) LED Reverse Breakdown Voltage: 3.0 V Input - Output Coupling Capacitance: 0.5 pF ELECTRO-OPTICAL CHARCTERISTICS 25C ON Resistance 2 Dynamic Range Response Time 4 Slope 3 OFF (Typ.) (Typ.) Part Material Dark Turn-on to Turn-off (Decay) Resistance Number Type R Input current Adapted 63% Final R to 100 k DARK 10 sec. (Min.) 0.5 mA ON ------------------------ ------------------------ (Typ.) (Typ.) (Max.) R 20 mA R 5 mA 5 mA 2.5 k VTL5C2/2 1.0 M 20 65 db 7.0 ms 150 ms 40 mA 700 1 mA 55 k VTL5C3/2 3 10 M 19 71 db 3.0 ms 50 ms 40 mA 2 k Refer to Specification Notes, page 41. PerkinElmer Optoelectronics, 10900 Page Ave., St. Louis, MO 63132 USA Phone: 314-423-4900 Fax: 314-423-3956 Web: www.perkinelmer.com/opto 47Typical Performance Curves Output Resistance vs. Input Current Response Time VTL5C2/2 VTL5C2/2 Output Resistance vs. Input Current Response Time VTL5C3/2 VTL5C3/2 Notes: Input Characteristics 1. At 1.0 mA and below, units may have substantially higher resistance than shown in the typical curves. Consult factory if closely controlled characteristics are required at low input currents. 2. Output resistance vs input current transfer curves are given for the following light adapt conditions: (1) 25C 24 hours no input (2) 25C 24 hours 40 mA input (3) +50C 24 hours 40 mA input (4) 20C 24 hours 40 mA input 3. Response time characteristics are based upon test following adapt condition (2) above. PerkinElmer Optoelectronics, 10900 Page Ave., St. Louis, MO 63132 USA Phone: 314-423-4900 Fax: 314-423-3956 Web: www.perkinelmer.com/opto 48