ZD20CD Series 1A, 80 Vdc Optically Isolated Short-Circuit Protected FEATURES/BENEFITS • Short-circuit protected • Overload trip • Low off-state leakage current • Optical isolation • Compact package Part Number Description ZD20CD* 1A, 80 Vdc, short-circuit protected up to 60 Vdc, solid-state relay for through-hole mounting SZD20CD* 1A, 80 Vdc, short-circuit protected up to 60 Vdc, solid-state relay for surface mount MECHANICAL SPECIFICATIONS *T, W level screening available ELECTRICAL SPECIFICATIONS (–55°C to +105°C ambient temperature unless otherwise specified) INPUT (CONTROL) SPECIFICATIONS Min Max Input Current 8 20 mA Input Voltage @10mA 2 3 Vdc Must Turn-On 8 Must Turn-Off Current mA 100 µA 0.8 Vdc Must Turn-Off Voltage Reverse Polarity Units –6 Vdc OUTPUT (LOAD) SPECIFICATIONS Load Voltage Range Max Units 80 Vdc 1.0 A 0 Output Current Rating (See Figure 6) Figure 1 Leakage Current at Rated Voltage 20 µA Transient Blocking Voltage @25°C 100 Vdc ** Output Capacitance @25Vdc (25°C) 600 pF Output Voltage Drop @1A 0.55 Vdc On Resistance 0.55 Ohm Turn-On Time 2.0 ms Turn-Off Time 1.0 ms Trip Overload (See Figure 7) Short Circuit Protection Rs * A 60 TYPICAL WIRING DIAGRAM Vdc 1 6 2 5 ZD Min 3 4 LOAD * LOAD *Shorted internally **Series resistor required to limit input current to 20mA maximum Figure 2 FUNCTIONAL BLOCK DIAGRAM +IN (1) INPUT with LEDs Optical Isolation Detection Circuit Switching Circuit Output Switch (MOSFET) with Current Sense +OUT (6) –OUT (4) –IN (3) Figure 3 © 2004 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com ZD Page 1 2DSZD20CD Rev -- ZD20CD Series 1A, 80 Vdc Optically Isolated Short-Circuit Protected GENERAL SPECIFICATIONS (+25°C ambient temperature unless otherwise specified) CONTROL CURRENT VS. INPUT VOLTAGE Max Units Operating Temperature –55 +105 °C Storage Temperature –55 +125 °C Junction Temperature @1A +125 °C Thermal Resistance θJA +125 °C/W Shock 1500 g Vibration 100 g Dielectric Strength 1500 Vac 109 Ohm Input to Output Capacitance 5 18 16 Control Current (mA) Min Insulation Resistance (@500 Vdc) +105°C +25°C –55°C 20 ENVIRONMENTAL SPECIFICATIONS 14 12 10 8 6 4 2 0 0 .5 1.0 1.5 pF MIL STD 202, method 208 Thermal Shock MIL STD 202, method 107 2.5 3.0 3.5 Figure 4 Resistance to Soldering Heat MIL STD 202, method 210 Solderability 2.0 Volts LOAD CURRENT VS. AMBIENT TEMPERATURE 1.2 TYPICAL TURN-ON TIME VS. INPUT CURRENT Load Current (A) 1.0 0.8 0.6 0.4 0.2 0 –55 –35 –15 5 25 45 65 85 105 125 Ambient Temperature (°C) Figure 6 Figure 5 TYPICAL OVERLOAD TRIP CURRENT VS. TIME Figure 7 ZD Page 2 NOTES: 1. The ZD20CD relay’s input current should be limited to between 8 and 20mA. An external resistor whose value =(VIN – 2.5 volts) ÷ 0.012 Amps is a good choice for limiting input current. 2. Relay input transitions should be less than 1.0 millisecond. 3. Loads may be attached to either the positive or negative output terminal. 4. Maximum load current ratings are with the relay in free air and soldered to a printed circuit board. 5. Timing is measured from the input current transition to the 10% or 90% points on the output voltage transition. 6. Overload conditions (including shorted loads) are specified for load supply voltages to 60 Vdc maximum. 7. For through-hole-PCB-solder-attaching ZD20CD series relays, the wave-solder or solder pot operations are limited to +260°C maximum for 10 seconds, maximum. 8. For surface-mount-solder-attaching SZD20CD series relays, in IR heating or convection heating systems, the component temperature is limited to +235°C maximum for 10 seconds maximum. SPECIFICATIONS UNDER REVISION CONTROL © 2004 TELEDYNE RELAYS 2DSZD20CD Rev --