Low Cost Axial Vactrols VTL5C3, 5C4 PACKAGE DIMENSIONS INCH (MM) PLASTIC POTTING CONTOUR NOT CONTROLLED DESCRIPTION VTL5C3 has a steep slope, good dynamic range, a very low temperature coefficient of resistance, and a small light history memory. VTL5C4 features a very low "on" resistance, fast response time, with a smaller temperature coefficient of resistance than VTL5C1. ABSOLUTE MAXIMUM RATINGS @ 25C LED Forward Voltage Drop @ 20 mA: Maximum Temperatures Storage and Operating: Cell Power: Derate above 30C: LED Current: Derate above 30C: -40C to 75C 175 mW 3.9 mW/C 40 mA 1 0.9 mA/C LED Reverse Breakdown Voltage: 3.0 V 2.0V (1.65V Typ.) Min. Isolation Voltage @ 70% Rel. Humidity: 2500 VRMS Output Cell Capacitance: 5.0 pF Cell Voltage: 250V (VTL5C3), 50V (VTL5C4) 0.5 pF Input - Output Coupling Capacitance: ELECTRO-OPTICAL CHARCTERISTICS @ 25C ON Resistance 2 Part Number Material Type VTL5C3 VTL5C4 OFF 3 Resistance @ 10 sec. (Min.) Response Time 4 Slope (Typ.) Dynamic Range (Typ.) R@ 0.5 mA ------------------------R@ 5 mA R DARK -----------------------R@ 20 mA Turn-on to 63% Final RON (Typ.) Turn-off (Decay) to 100 k (Max.) Input current Dark Adapted (Typ.) 3 1 mA 10 mA 40 mA 30 k 5 1.5 10 M 20 75 db 2.5 ms 35 ms 4 1 mA 10 mA 40 mA 1.2 k 125 75 400 M 18.7 72 db 6.0 ms 1.5 sec Refer to Specification Notes, page 41. Excelitas Technologies, 10900 Page Ave., St. Louis, MO 63132 USA Phone: 314-423-4900 Fax: 314-423-3956 Web: www.excelitas.com 45 Typical Performance Curves Output Resistance vs. Input Current VTL5C3 Response Time VTL5C3 Output Resistance vs. Input Current VTL5C4 Response Time VTL5C4 Input Characteristics Notes: 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) (2) (3) (4) 3. Excelitas Technologies, 10900 Page Ave., St. Louis, MO 63132 USA 25C -- 24 hours @ no input 25C -- 24 hours @ 40 mA input +50C -- 24 hours @ 40 mA input -20C -- 24 hours @ 40 mA input Response time characteristics are based upon test following adapt condition (2) above. Phone: 314-423-4900 Fax: 314-423-3956 Web: www.excelitas.com 46