
DC Solid State Relay
Series CD
SHORT CIRCUIT PROTECTED, OPTICALLY ISOLATED, 2A, 60 VDC
DC-5
BD
AC
DC
A
D
DC
FEAT URES
Available with short circuit/current
overload protection
Available with input status monitor
TTL and CMOS compatible control
Low ON resistance power FET
output
Fast switching speed
Meets 28 Vdc system requirements
of MIL-STD-704
Optical isolation
Low profile hermetic ceramic
package
Built and tested to the requirements
of MIL-R-28750
DES CRIPT ION
This all solid state relay utilizes the
latest technology to provide a low ON
resistance. The control (input) and
load (output) are optically isolated to
protect input logic circuits from voltage
and current transients which can occur
on the output supply. The optical
isolation also provides a full floating
output, thus allowing the load to be
connected to either output terminal.
The control circuit is buffered to enable
the relay to be driven directly from
standard CMOS or open collector TTL
logic circuits. Available options include
short circuit and current overload
protection, which provides complete
protection for both the relay and the
system wiring. This 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. The second option is a
status output, which provides a built-
in-test function. This feature checks
the input circuitry of the relay and
provides a logic (0) low when the input
circuit is turned on and operational.
Both options are available either
together or separately as standard
features.
Part*
Number
DESC Drawing
Number
Relay Description
CD00CFW
CD00CFY
Basic Solid State Relay (SSR)
90091-008
CD01CFW
CD01CFY
SSR with Control Status
90091-006
CD20CDW
CD20CDY
SSR with Short Circuit Protection
90091-004
CD21CDW
CD21CDY
SSR with Short Circuit Protection
and Control Status
90091-002
* The Y suffix denotes parameters tested to MIL-R-28750 specifications.
The W suffix denotes parameters tested to Teledyne specifications.
ELECT RICAL S PECIFICAT IONS
(-55°C TO +105°C UNLESS OTHERWISE NOTED)
INPUT (CONT ROL) S PECIFICAT ION
When used in 2 terminal configuration
(TTL or direct control) (See Fig. 1)
Min
Typ
Max
Units
Input Current @ VIN= 5 Vdc (See Fig. 2)
14
15
mAdc
Turn-Off Voltage (Guaranteed Off)
1.5
Vdc
Turn-On Voltage (Guaranteed On)
3.8
Vdc
Reverse Voltage Protection
-32
Vdc
Input Supply Range (See Note 4)
3.8
32
Vdc
INPUT (CONT ROL) S PECIFICAT ION
When used in 3 terminal configuration
(CMOS or open collector TTL) (See Fig. 1)
Min
Typ
Max
Units
Control Current
VCONTROL= 5 Vdc
250
μAdc
VCONTROL= 18 Vdc
1
mAdc
Control Voltage Range
0
18
Vdc
Bias Supply Voltage (See Note 4)
3.8
32
Vdc
Bias Supply Current @ VBIAS= 5 Vdc
14
15
mAdc
Turn-Off Voltage (Guaranteed Off)
3.2
Vdc
Turn-On Voltage (Guaranteed On)
0.3
Vdc
12/96
1996 TELEDYNE RELAYS