Series SR75-1 1.5A, 60Vdc Optically Isolated, Short-Circuit Protected DC Solid-State Relay Part Number* Relay Description SR75-1 Solid-State Relay with Terminals for Through-Hole mount SR75-1S Solid-State Relay with Terminals for Surface Mount *A W or T suffix denoting the Teledyne reliability screening level, must be added to the part number. FEATURES/BENEFITS ELECTRICAL SPECIFICATIONS Short-Circuit Protected: Prevents (-55C TO 105C, Ambient Temperature Unless Otherwise Specified) damage to system components, assemblies and system wiring INPUT (CONTROL) SPECIFICATIONS Optical Isolation: Isolates control Min Max Units circuits from load transients Eliminates ground loops and signal Control Voltage Range (See Note 2) 3.8 32.0 Vdc ground noise Low Off-State Leakage: For high off- Input Current 5 Vdc (See Figure 1) 11.0 mA state impedance Must Turn-On Voltage (See Note 3) 3.8 Vdc Switches High Currents: To 1.5 Adc High Noise Immunity: Control signals Must Turn-Off Voltage 1.5 Vdc isolated from switching noise High Dielectric Strength: For safety Reverse Voltage Protection -32.0 Vdc and for protection of control and signal level circuits OUTPUT (LOAD) SPECIFICATION Min Max Units DESCRIPTION Load Voltage Rating 60 Vdc The SR75-1 solid-state relay utilizes a power FET switch that is protected Transient Blocking Voltage 80 Vdc against short-circuit and overload currents. The short-circuit protection Output Current Rating (See Figure 2) 1.5 Adc feature not only provides protection should a short or overload occur while On Resistance (See Figure 3, Note 8) 0.5 Ohm the relay is on, but will also provide protection should the relay be switched Leakage Current at Rated Voltage 100 A into a short. In either case, the relay will sense the short-circuit condition and Turn-On Time 4.5 ms then block it indefinitely until the short is removed and the unit is reset by cycling Turn-Off Time 0.5 ms the input control. Using the SR75-1 to switch power sources and loads can dV/dt 60 Vdc (See Note 8) 100 V/s prevent fires, damage to system assemblies and system wiring. The Electrical System Spike (See Note 9) 600 Vpk power FET output offers low ON resistance and can switch loads in either Input to Output Capacitance at 1 MHz (See Note 9) 20 pF the high or the low side of the power line. The SR75-1 is packaged in a 16-pin Dielectric Strength 1000 Vrms DIP package with either surface-mount or through-hole mounting available. 8 Insulation Resistance 10 Ohm Junction Temperature 130 C Thermal Resistance (Junction to Ambient) 90 C/W Solderability (10 sec) 260 C 2004 TELEDYNE RELAYS (800) 284-7007 www.teledynerelays.com SR75-1 1 SR75-1 062004 Q1Series SR75-1 INPUT VOLTAGE (Vdc) INPUT CURRENT VS VOLTAGE FIGURE 1 2.0 1.6 1.2 0.8 0.4 0.0 55 -35 -15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C) LOAD CURRENT DERATING CURVE FIGURE 2 (SEE NOTE 7) TRIP TIME VS. OVERLOAD CURRENT 0.5 FIGURE 4 0.4 WIRING CONFIGURATIONS R 0.3 S LOAD RETURN 16 14 12 10 0.2 0.1 SR75-1 V CC 0.0 55 -35 -15 5 25 45 65 85 105 125 13 5 8 + JUNCTION TEMPERATURE (C) +V LOAD TYPICAL ON RESISTANCE VS T SHORT-CIRCUIT PROTECTED DC LOADS J FIGURE 3 (SEE NOTES 2, 4 AND 6) V BIAS = 5.0 VDC MECHANICAL SPECIFICATIONS RETURN LOAD CTRL TTL 16 14 12 10 SR75-1 13 5 8 +V V BIAS = 5.0 VDC LOAD SHORT-CIRCUIT PROTECTED AC LOADS (SEE NOTE 6) NOTES: 1. The input voltage is 5.0 Vdc for all tests unless otherwise specified. 2. For input voltage greater than 6.0 Vdc a series resistor must be used to limit the power dissipation on the input of the relay. The resistor value should be selected using the following equation: R = (V - 6 volts)/11mA BIAS 3. The input transitions are to be less than 1.0 msec duration. 4. Inductive loads must be diode suppressed. 5. Reversing the output polarity when the relay is in overload or is sustaining a short circuit may cause permanent damage. Operating Temperature Range 6. Loads may be switched in either the high side or the low 55C to 105C side of the power source. Storage Temperature Range 55C to 125C 7. Continuous load current rating is determined with relay Weight: 2.0 grams maximum mounted on a printed circuit card. Case: 16-pin Dual-In-Line (TO-116) 8. Tested at 25C only. Case Material: Filled Epoxy, self 9. Qualification and/or random sample test only. extinguishing SR75-1 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE 2004 TELEDYNE RELAYS SR75-1 062004 Q1 INPUT CURRENT (mA) ON-RESISTANCE (OHM) CONTINUOUS LOAD CURRENT (Amp)