SR75-2W Datasheet, PDF (1/2 Pages) Teledyne Technologies Incorporated – 0.75A, 300Vdc Optically Isolated, Short-Circuit Protected for AC or DC Loads DC Solid-State Relay

Series SR75-2
0.75A, 300Vdc Optically Isolated, Short-Circuit Protected
for AC or DC Loads DC Solid-State Relay
Part Number* Relay Description
SR75-2
Solid-State Relay with Terminals for Through-Hole
Mount
SR75-2S
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.
ELECTRICAL SPECIFICATIONS
(-55°C TO 105°C, Ambient Temperature Unless Otherwise Specified)
INPUT (CONTROL) SPECIFICATIONS
Min Max Units
Control Voltage Range (See Note 6)
3.8 32.0 Vdc
Input Current @ 5 Vdc (See Figure 1)
11.0 mA
Must Turn-On Voltage (See Note 7)
3.8
Vdc
Must Turn-Off Voltage
1.5 Vdc
Reverse Voltage Protection
-32.0 Vdc
OUTPUT (LOAD) SPECIFICATION
Min Max Units
Load Voltage Rating
300 Vdc
Transient Blocking Voltage
320 Vdc
Output Current Rating (See Figure 2)
0.75 Adc
On Resistance (See Figure 3)
2.0 Ohm
Leakage Current at Rated Voltage
100 µA
Turn-On Time
4.5 ms
Turn-Off Time
0.5 ms
dV/dt @ 60V (See Note 8)
100 V/µs
Electrical System Spike (See Note 8)
± 600 Vpk
Output Capacitance @ 100 KHz, 25 Vdc (See Note 8) 250 pF
Input to Output Capacitance at 1 KHz (See Note 8) 5 pF
Dielectric Strength (See Note 8)
1000
Vrms
Insulation Resistance (See Note 8)
10⁸
Ohm
Junction Temperature
130 °C
Thermal Resistance (Junction to Ambient)
90 °C/W
Solderability (10 sec)
260 °C
FEATURES/BENEFITS
• Short-Circuit Protected: Prevents
damage to system components,
assemblies and system wiring. Can
be connected to protect AC or DC
loads (AC with diode bridge)
• Optical Isolation: Isolates control
circuits from load transients
Eliminates ground loops and signal
ground noise
• Low Off-State Leakage: For high off-
state impedance
• Switches High Voltages: To 300 Vdc
• Switches High Currents: To 0.75 Adc
• High Noise Immunity: Control signals
isolated from switching noise
• High Dielectric Strength: For safety
and for protection of control and
signal level circuits
DESCRIPTION
The SR75-2 solid-state relay utilizes a
power FET switch that is protected
against overload and short-circuit
currents. The short-circuit protection
feature not only provides protection
should a short or overload occur while
the relay is on, but will also provide
protection should the relay be switched
into a short. Once the protection trips
the relay, it will remain off until reset by
cycling the input control line. Using the
SR75-2 to switch power sources and
loads can prevent fires, damage to
system assemblies and system wiring.
The power FET output offers low “ON”
resistance and can switch loads in
either the high or the low side of the
power line. The SR75-2 is packaged in
a 16-pin DIP package with either
surface-mount or through-hole mounting
available.
© 2004 TELEDYNE RELAYS
[phone] • www.teledynerelays.com
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