DC Solid State Relay Series KD/LD
SHORT CIRCUIT PROTECTED OPTICALLY ISOLATED, 10A, 60 VDC
DC-19
BD
AC
DC
A
D
DC
FEATURES
• Available with short circuit/current
overload protection
• Available with switch status output
• 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 package
• Built and tested to the requirements
of MIL-R-28750
DESCRIPTION
The KD and LD series solid state
relays are screened utilizing MIL-R-
28750 test methods and are
packaged in low profile hermetically
sealed cases. These relays are
constructed with state-of-the-art solid
state techniques and feature fully
floating power FET output
technology. This allows the load to be
connected to either output terminal
and provides a low ON resistance.
The input (control) and output are
optically isolated to protect input logic
circuits from output transients.
Available options include short circuit
and current overload protection,
which provides complete protection
for both the relay and 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. The
second option is a status output line.
Switch status returns the true status
of the output switch and is optically
isolated from the load. It provides
status indication independent of the
control circuit of the relay. The status
line provides a logic 0 (low) when the
relay output is off with load voltage
and continuity present, and a logic 1
(high) when the output is on. These
options are available either together
or separately as standard features.
Part Number Relay Description
KD00CK 5 A Solid State Relay (SSR)
KD02CK 5 A SSR with Switch Status
KD20CK 5 A SSR with Short Circuit Protection
KD22CK 5 A SSR with Short Circuit Protection
and Switch Status
LD00CM 10 A Solid State Relay
LD02CM 10 A SSR with Switch Status
LD20CM 10 A SSR with Short Circuit Protection
LD22CM 10 A SSR with Short Circuit Protection
and Switch Status
*The Y suffix denotes parameters tested to MIL-R-28750 specifications.
The W suffix denotes parameters tested to Teledyne specifications.
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) Min Typ Max Units
Input Current @ VBIAS = 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 1) 3.8 32 Vdc
INPUT (CONTROL) SPECIFICATION
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 1) 3.8 32 Vdc
Bias Supply Current 14 16 mAdc
Turn-Off Voltage (Guaranteed Off) 3.2 Vdc
Turn-On Voltage (Guaranteed On) 0.3 Vdc
12/96 ©1996 TELEDYNE RELAYS
Series KD/LD
DC-20
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
BD
AC
DC
A
D
DC OUTPUT (LOAD) SPECIFICATIONS
(See Note 2) Min Typ Max Units
Continuous Load Current KD and LD series 5
(See Fig. 3) without heat sink
LD series with 10
heat sink
Leakage Current KD00CK, KD20CK 100 µA
VLOAD=60Vdc LD00CM, LD20CM
KD02CK, KD22CK 2 mA
LD02CM, LD22CM
Output Voltage KD00CK, KD02CK .60
Drop KD20CK, KD22CK .70
LD00CM, LD02CM 1.2
LD20CM, LD22CM 1.4
Continuous Operating Load Voltage 60 Vdc
Transient Blocking Voltage 80 Vdc
ON Resistance KD00CK, KD20CK .075
ILOAD = 100 mA LD00CM, LD20CM
TJ= 25°C KD20CK, KD22CK .100
(See Fig. 4) LD20CM, LD22CM
Turn-On Time (See Fig. 5) 5 ms
Turn-Off Time (See Fig. 5) 2 ms
Electrical System Spike ±600 Vpk
Output Capacitance at 25 Vdc, 100 KHz 1600 pF
Isolation KD00CK, KD20CK 10
(Input to Output) LD00CM, LD20CM
KD02CK, KD22CK 15
LD02CM, LD22CM
Dielectric Strength 1000 Vac
Insulation Resistance @ 500 Vdc 109Ohms
Output Junction Temperature 130 °C
@ ILOAD = IMAX RATED
Maximum Junction Temperature 150 °C
Thermal Resistance Junction to Ambient (θJA) 30 °C/W
Thermal Resistance Junction to Case (θJC) 7 °C/W
BLOCK DIAGRAM
0.140 DIA
(3.556)
6 PLS
22
1
3
16 9
12
0.400
(10.160)
0.801
(20.345)
MAX
0.60
1.000
(25.400)
0.8
.040 (1.02)
± .002 (0.051)
6 PL
0.22
(5.59)
MAX
.475
±.015
.475
±.015
0.22
(5.59)
MAX
0.188 ±.010
1.375
(34.925)
MAX
0.
.200
±.010
REF
K PACKAGE 0.81
MAX
1.340
(34.04)
.157 (3.99) ±
.003 (.076)
DIA
THRU 2 PLS
.398
(10.1)
.551
(14.0)
.040 (1.02) DIA
± .002 (0.051)
6 PLS
1.370
REF
2.105
(53.47)
MAX
1.750
(44.45)
.200 (5.08)
.600
(15.2)
.800
(20.3)
1.000
(25.4)
.140 (3.56)
DIA
6 PLS
TEMPERATURE
MEASUREMENT POINT
.200
(5.08)
.400 (10.2)
Tolerance:
.XXX ± .005
L PACKAGE
MECHANICAL SPECIFICATIONS
WITH STATUS
NO STATUS
• Enclosure: Hermetically Sealed DIP
• Leak Rate: 1 x 10-8 CC/Sec Maximum
• Material: Header: Cold Rolled Steel
Nickel Plated
Pins Copper Core
• Weight: 20 grams
• Tolerance: .XXX ± .005
DIMENSIONS ARE SHOWN IN INCHES (MILLIMETERS)
Adc
Vdc
Ohms
pF K PACKAGE
L PACKAGE
Tolerance:
.XXX ± .005
Series KD/LD
DC-21
ENVIRONMENTAL SPECIFICATIONS
Temperature Operating -55°C to +105°C
Range Storage -55°C to +125°C
Vibration 100 g, 10 to 3000 Hz
Constant Acceleration 5000 g
Shock 1500 g, 0.5 ms pulse
STATUS OUTPUT TRUTH TABLE
(KD02CK, LD02CM, KD22CK, LD22CM)
Control Voltage Relay Output State Status Output Level
High Off Low (VSO ≤0.4 Vdc)
Low On High (VSO = VSTATUS)
STATUS OUTPUT SPECIFICATIONS
(KD02CK, LD02CM, KD22CK, LD22CM)
Min Typ Max Units
Status Supply Voltage 30 Vdc
Status Leakage Current @ 15 Vdc 10 µAdc
Status (sink) Current (VSO < 0.4 Vdc) 600 µAdc
Status Turn-On Time (See Fig. 6) 3.5 ms
Status Turn-Off Time (See Fig. 6) 8.0 ms
BD
AC
DC
A
D
DC
VSTATUS
RSTATUS IS
IT
VSO ISO
VBIAS IBIAS RS
BIAS STATUS
OUTPUT
(+) OUTPUT
LOAD
VLOAD
22
16
12
VCONTROL ICONTROL 1
39
CONTROL
KD02CK
LD02CM
KD22CK
LD22CM
RETURN
(-) OUTPUT
LOAD
LOAD
RETURN
(A) 3 TERMINAL INPUT WITH ST ATUS (See Note 5)
VIN
RSIIN
BIAS
(+) OUTPUT
LOAD
VLOAD
22 12
1
39
CONTROL
KD02CK
LD02CM
KD22CK
LD22CM
KD00CK
LD00CM 1 /
RETURN
(-) OUTPUT
LOAD
LOAD
RETURN
CONTROL
O.C. TTL
(B) 2 TERMINAL INPUT (OPEN COLLECTOR TTL DRIVE)
VSTATUS
RSTATUS IS
VSO
ISO
VIN
S1
RSIIN IT
BIAS STATUS
OUTPUT
(+) OUTPUT
LOAD
VLOAD
CONTROL KD02CK
LD02CM
KD22CK
LD22CM
RETURN
(-) OUTPUT
LOAD
LOAD
RETURN
(C) 2 TERMINAL INPUT (DIRECT DRIVE) WITH ST ATUS
VIN
S1RSIIN
BIAS
(+) OUTPUT
LOAD
VLOAD
CONTROL KD02CK
LD02CM
KD22CK
LD22CM
KD00CK
LD00CM 1 /
RETURN
(-) OUTPUT
LOAD
LOAD
RETURN
(D) 2 TERMINAL INPUT (DIRECT DRIVE)
VBIAS IBIAS RS
BIAS
(+) OUTPUT
LOAD
VLOAD
I
CONTROL
VCONTROL CONTROL
KD02CK
LD02CM
KD22CK
LD22CM
KD00CK
LD00CM 1 /
RETURN
(-) OUTPUT
LOAD
LOAD
RETURN
1 / KD02CK, KD22CK, LD02CM and LD22CM may be wired without the status
line as shown in (B), (D) and (E) above.
(E) 3 TERMINAL INPUT WITHOUT STATUS
22 12
39
1
WIRING CONFIGURATIONS
0 5 10 15 20 25 30 40 50 60
18
15
12
9
6
3
0
BIAS (INPUT) CURRENT (mA)
BIAS (INPUT) VOLTAGE (Vdc)
FIGURE 1 (See Note 1)
BIAS (INPUT) CURRENT VS BIAS (INPUT) VOLTAGE
FIGURE 2 (See Note 1)
12/96 ©1996 TELEDYNE RELAYS
Series KD/LD
DC-22
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
BD
AC
DC
A
D
DC
NOTES:
1. Control input is compatible with CMOS or open collector TTL (with pull up resistor).
For bias voltages above 6V, a series resistor is required. Use the standard resistor
value equal to or less than the value found in Figure 8.
2. The rated input voltage is 5V for all tests unless otherwise specified.
3. 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: R(ON) = NR • RON @ 25°C
(KD00CK, LD00CM, KD02CK, LD02CM)
R(ON) = NR(RON @ +25°C ) + .025 ohm
(KD20CK, LD20CM, KD22CK, LD22CM)
4. Overload testing to the requirements of MIL-R-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 50 µH.
Maximum repetition rate into a shorted load should not exceed 10 Hz.
5. 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 0.6
mA. Select the status resistor such that it does not allow more than 0.6 mA to flow
through the status output.
RSTATUS =VSTATUS - 0.4V
Iso
6. Inductive loads should be diode suppressed. Input transitions should be ≤1 ms
duration and the input drive should be a bounceless contact type.
AMBIENT TEMPERATURE (°C)
PERCENT CURRENT
-55 -45 -35 -5 5 15 25 35 45 55 65 75 85 95 105 115
100
90
80
70
60
50
40
30
20
10
0
KD00CK
KD02CK
LD00CM
LD02CM
KD20CK
KD22CK
LD20CM
LD22CM
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0 25 50 75 100 125
NORMALIZED ON RESISTANCE (NR)
JUNCTION TEMPERATURE (C°)
30A
25A
20A
15A
10A
5A
-55°
25°
1(s)
100°
10 100 1S 10 100 1000'S
0 5 10 15 20 25 30 35
BIAS VOLTAGE (VOLTS)
2000
1500
1000
500
0
SERIES RESISTOR (Ohms)
LOAD CURRENT DERATING CURVE FOR
LD SERIES
(B)
THERMAL DERATING CURVES
FIGURE 3
NORMALIZED ON RESISTANCE
VS JUNCTION TEMPERATURE
FIGURE 4 (See Note 3)
OUTPUT TURN-ON AND TURN-OFF
TIMING
FIGURE 5
STATUS TURN-ON AND TURN-OFF
TIMING
FIGURE 6
OVERLOAD CURRENT VS TIME TO TRIP
(TYPICAL)
KD20CK, KD22CK, LD20CM, LD22CM
FIGURE 7
SERIES LIMIT BIAS RESISTOR VS BIAS
VOLTAGE
FIGURE 8 (See Note 1)
TYPICAL TRIP CURRENT CHARACTERISTICS
FOR SHORT CIRCUIT CONDITIONS
FIGURE 9
LOAD CURRENT DERATING CURVE FOR
KD/LD SERIES WITHOUT A HEAT SINK
(A)
CASE TEMPERATURE (°C)
PERCENT CURRENT
-55 -45 -35 -5 5 15 25 35 45 55 65 75 85 95 105 115
100
90
80
70
60
50
40
30
20
10
0
125