Series CD
2A, 60Vdc Optically Isolated, Short-Circuit Protected
DC Solid-State Relay
Part*
Number
CD00CFW
CD00CFY
CD01CFW
CD01CFY
CD20CDW
CD20CDY
CD21CDW
CD21CDY
DESC Drawing
Number
Relay Description
Basic Solid-State Relay (SSR)
90091-008
SSR with Control Status
90091-006
FEATURES
SSR with Short-Circuit Protection
90091-004
SSR with Short-Circuit Protection
90091-002
and Control Status
* The Y suffix denotes parameters tested to MIL-PRF-28750 specifications.
The W suffix denotes parameters tested to Teledyne specifications.
For surface mount (SMT), add “S” prefix to part number. Example:
SCD00CFW
ELECTRICAL SPECIFICATIONS
(-55°C TO +105°C UNLESS OTHERWISE NOTED)
INPUT (CONTROL) SPECIFICATION
When used in 2 terminal configuration
(TTL or direct control) (See Fig. 1)
• 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-PRF-28750
DESCRIPTION
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.
Min
Typ
14
Max Units
15
1.5
mA
Vdc
Vdc
-32
Vdc
Vdc
Input Current @ V
IN
= 5 Vdc (See Fig. 2)
Turn-Off Voltage (Guaranteed Off)
Turn-On Voltage (Guaranteed On)
Reverse Voltage Protection
Input Supply Range (See Note 4)
When used in 3 terminal configuration
(CMOS or open collector TTL) (See Fig. 1)
Min
3.8
3.8
6
INPUT (CONTROL) SPECIFICATION
Typ
Max Units
250
1
µA
mA
Vdc
Vdc
mA
Vdc
0.3
Vdc
Control Current
V
CONTROL
= 5 Vdc
V
CONTROL
= 18 Vdc
Control Voltage Range
Bias Supply Voltage (See Note 4)
Bias Supply Current @ V
BIAS
= 5 Vdc
Turn-Off Voltage (Guaranteed Off)
Turn-On Voltage (Guaranteed On)
3.2
0
3.8
14
18
6
15
© 2002 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
CD 41
CD\072002\Q1
Series CD
OUTPUT (LOAD) SPECIFICATIONS
BLOCK DIAGRAM
(BOTTOM VIEW)
Max Units
(See Note 2)
Continuous Load Current (See Fig. 3)
CD20CD
CD21CD
CD00CF
CD01CF
Leakage Current @ V
LOAD
= 60 Vdc
Output Voltage Drop
CD20CD
CD21CD
CD00CF
CD01CF
Continuous Operating Load Voltage
Transient Blocking Voltage (See Note 3)
CD20CD
CD21CD
CD00CF
CD01CF
Turn-On Time (See Fig. 5)
Turn-Off Time (See Fig. 5)
Electrical System Spike
Output Capacitance at 25 Vdc, 100 KHz
Input to Output Capacitance
Dielectric Strength
Insulation Resistance @ 500 Vdc
Min
Typ
1.0
1.0
2.0
2.0
40
0.6
0.6
0.75
0.75
60
80
0.36
0.36
0.16
0.16
Adc
Adc
Adc
Adc
µAdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
ON Resistance Rds (on) at T
J
= 25°C I
LOAD
= 100 mAdc (See Fig. 4)
0.45 Ohm
0.45 Ohm
0.22 Ohm
0.22 Ohm
1.5
0.25
±600
475
10
ms
ms
Vdc
pF
pF
Vac
Ohm
MECHANICAL SPECIFICATIONS
1000
10
9
Maximum Junction Temperature (T
J
Max)
CD00
CD01
Thermal Resistance Junction to Ambient (θ
JA
)
Thermal Resistance Junction to Case (θ
JC
)
150
150
80
20
°C
°C
°C/W
°C/W
STATUS OUTPUT SPECIFICATIONS
(CD01CF AND CD21CD)
Status Supply Voltage (See Note 7)
Status Leakage Current @ 15 Vdc
Status (sink) Current (V
SO
< 0.3 Vdc)
CD 42
Min
Typ
Max Units
30
4
2
Vdc
µAdc
mAdc
© 2002 TELEDYNE RELAYS
CD\072002\Q1
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
Series CD
NORMALIZED ON RESISTANCE VS JUNCTION
TEMPERATURE
FIGURE 4 (SEE NOTE 5)
SERIES LIMIT BIAS RESISTOR VS BIAS VOLTAGE
FIGURE 8 (SEE NOTE 4)
NOTES:
1.
2.
3.
4.
Control input is compatible with CMOS or open collector
TTL (with pull up resistor).
The rated input voltage is 5V for all tests unless otherwise
specified.
Transient blocking voltage tests are performed per
MIL-STD-704 (28 Vdc systems).
For bias voltages above 6V, a series resistor is required.
Use the standard resistor value equal to or less than the
value found from Figure 8.
To calculate the maximum ON resistance for a given
junction temperature, find the normalized ON resistance
factor (NR) from Figure 4. Calculate the new ON
resistance as follows:
(CD00CD, CD01CD) R
(ON)
= NR • R
ON
@ 25°C
(CD20CD, CD21CD) R
(ON)
= 0.2 • NR + 0.21
Overload testing to the requirements of MIL-PRF-28750 is
constrained to the limits imposed by the short circuit
protection characteristics as defined in this specification.
System series inductance for “shorted-load” mode of
operation should be 30
µH
maximum. Maximum repetition
rate into a shorted load should not exceed 10 Hz.
A status pull up resistor is required for proper operation of
the status output. Determine the current (Iso) required by
the status interface. Calculate the current (Is) through the
status resistor such that the sink current through the
status output is 2 mA. Select the status resistor such that
it does not allow more than 2 mA to flow through the
status output.
R
STATUS
=
V
STATUS
- 0.3V
2 mA - Iso
Inductive loads should be diode suppressed. Input
transitions should be
≤
1 ms duration and the input drive
should be a bounceless contact type.
OUTPUT TURN-ON AND TURN-OFF TIMING
FIGURE 5
5.
6.
7.
TRIP CURRENT VS TIME
FIGURE 7 (SEE NOTE 6)
8.
CD 44
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2002 TELEDYNE RELAYS
CD\072002\Q1
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