DC SOLID STATE RELAY
Series SR75-1
1.5A , 60 VDC OPTICALLY ISOLATED
SHORT CIRCUIT PROTECTED
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 鈥榃鈥?or 鈥楾鈥?suffix denoting the S
2
R鈩eledyne reliability screening level,
must be added to the part number.
FEATURES/BENEFITS
鈥?Short Circuit Protected -Prevents
damage to system components,
assemblies and system wiring
鈥?Optical Isolation - Isolates control
circuits from load transients
Eliminates ground loops and signal
ground noise
鈥?Low Off-State Leakage - For high off-
state impedance
鈥?Switches High Currents - To 1.5 Adc
鈥?High Noise Immunity - Control signals
isolated from switching noise
鈥?High Dielectric Strength - For safety and
for protection of control and signal level
circuits
ELECTRICAL SPECIFICATIONS
(-55擄C TO 105擄C, Ambient Temperature Unless Otherwise Specified)
INPUT (CONTROL) SPECIFICATIONS
Min
Control Voltage Range (See Note 2)
Input Current @ 5 Vdc (See Figure 1)
Must Turn-On Voltage
Must Turn-Off Voltage
Reverse Voltage Protection
OUTPUT (LOAD) SPECIFICATION
Max Units
32.0
11.0
Vdc
mA
Vdc
1.5
Vdc
3.8
3.8
-32.0 Vdc
DESCRIPTION
Max Units
60
80
1.5
0.5
100
4.5
0.5
Vdc
Vdc
Adc
Ohm
碌A(chǔ)
ms
ms
V/碌s
鹵 600 Vpk
200
5
pF
pF
Vrms
The SR75-1 solid state relay utilizes a
power FET switch that is protected against
short circuit and overload 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. In either case, the
relay will sense the short circuit condition
and then block it indefinitely until the short
is removed and the unit is reset by cycling
the input control. Using the SR75-1 to
switch power sources and loads can
prevent fires, damage to system
assemblies and system wiring. The power
FET output offers low 鈥淥N鈥?resistance and
can switch loads in either the high or the
low side of the power line. The SR75-1 is
packaged in a 16 pin DIP package with
either surface mount or through hole
mounting available.
Min
Load Voltage Rating
Transient Blocking Voltage
Output Current Rating (See Figure 2)
On Resistance (See Figure 3)
Leakage Current at Rated Voltage
Turn-On Time
Turn-Off Time
dV/dt @ 60 Vdc @ 25擄C
Electrical System Spike
Output Capacitance
Input to Output Capacitance at 1 KHz
Dielectric Strength
Insulation Resistance
Junction Temperature
Thermal Resistance (Junction to Ambient)
1000
10
8
100
BLOCK DIAGRAM
Ohm
130
90
擄C
擄C/W
漏 2000 TELEDYNE RELAYS
800-284-7007 鈥?www.teledynerelays.com
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