TELEDYNE RELAYS
Industrial Solid State Products
page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NO TICE.
LR/LRT Series
SINGLE SCR OR TRIAC OUTPUT T O 40 AMPS 1200 VOLTS
FEATURES/BENEFITS
• Ultraminiature package for achieving
optimum size/perfor mance goals.
• Designed for PC Board through hole or
optional Surface Mount installation.
• Triac output option for economy; Back-to-
Back SCR output option for higher current
and voltage ratings.
• Choice of Zero Cross and Random Turn-On
versions.
• Constant Current Input minimizes source
current requirement (standard on D input
only)
• Exposed ceramic baseplate for reduced
thermal resistance and best thermal
performance.
• Constructed using Teledyne’s unique
PowerthermTM process which minimizes
thermal interconnections, allowing for cool
and reliable operation.
• The logic drive circuitr y section uses the
latest in reliable surface mount technology.
• Optional TransAXTM transient eliminator
offers up to 2000V Protection!
• UL or ULC Recognized File #E128555
• CE # EN60947-1
TYPICAL APPLICA TIONS
• On/Off controls of medium power AC
equipment.
• Interfacing of microprocessor controls to AC
loads - lights, motors, heaters, valves,
solenoids etc.
• Electromechanical line relay replacement.
• Industrial and Process Controls.
• Uninterruptable Power Supplies.
• Robotics motor position and speed controls.
• Light dimmers.
• Transformer tap switch.
GENERAL DESCRIPTION
The LR/LRT series AC Solid State Relays are
designed to control heavy loads in an ultramin-
iature, physically compact package. Optical
isolation ensures complete protection of
control elements from load transients.
Teledyne’s advanced design featuring the
PowerthermTM process offers users superior
thermal management resulting in super ior
performance, quality and reliability.
BLOCK DIA GRAM
PART NUMBERS
Package & Max Blocking Input Type Output Options
Chip Type V oltage (piv)/ Current
Line Rating Amps
LRT-Triac 600240 D-DC Input, 10 - Triac See Table
Zero Cross 25 - Triac Below and
LR-SCR 1200480 Switching 25 - SCR Page 40
600240 R-DC Input, 40 - SCR
Random
Tur n-On
Options (Add Suffix to Par t Number) - See Page 40 for full description
-008 Surface Mount Ter minals
-012 EZ MountTM
-021 TransAxTM (Available for SCR output only)
P art Number Example: LR1200480R25
MECHANICAL SPECIFICATION
Mounting bracket part number L101 available for panel/chassis attachment.
See page 42 for mounting infor mation.
ELECTRICAL SPECIFICA TIONS
TELEDYNE RELAYS
Industrial Solid State Products
Industrial Solid State Products • 800-284-7007 • www.teledynerelays.com page 3
INPUT (CONTROL) SPECIFICATIONS
Parameter Input Type Min Max Units
D 3 32
R 4 26
Input Current D,R(@5Vdc) 15 mA
Must Turn-Off Voltage D,R 1 Vdc
Rev erse Voltage D,R -32 Vdc
Turn-Off Current D,R 0.25 mA(AC)
OUTPUT (LO AD) SPECIFICATIONS
Parameter Voltage Code Min Max Units
Load Voltage Rating 600240 24 280
1200480 48 530
Frequency Range (Note 2) Tr iac 47 70
SCR 47 400
600240 600
1200480 1200
On-State Voltage Drop Triac 1.5
@ Max Rated Current SCR 1.4
D 8.3 ms
R 0.02 ms
Tur n-Off Time 8.3 ms
Leakage Current (Off-State) @rated voltage, 60 hz 0 .5 mA
dV/dt (Typical) 500 V/µs
Dielectric Strength (60 hz) 2500 V
Insulation Resistance (500Vdc) 109 ý
Operating Ambient Temperature -40 100 oC
Storage Ambient Temperature -55 125 oC
Power Factor Range 0.5 1.0
Weight (Typical) 0.53 oz. (15g)
OUTPUT (LO AD) SPECIFICATIONS (Contd)
Parameter Output Current Min Max Units
Output Current Rating 10 0.05 10
(Base Temp 85°C) 25 0.05 25 A
40 0.05 40
Surge Current Rating 10 100
(Non-Repetitive 25 250 A
16.7 mS) 40 400
Thermal Resistance 10 Tr iac Output 1.1
Junction to Case (JC) 25 Triac Output 1.1 °C/W
25 SCR Output 0.5
40 0.4
NOTES:
1.) Where overvoltage transient spikes are present,
suppression may be required. A suppressor and/
or a snubber across the AC terminals of the
module will provide additional transient immunity.
2.) For 400 Hz inductive load, contact factor y.
3.) All parameters at 25°C unless otherwise noted.
LR/LRT Series
SINGLE SCR OR TRIA C OUTPUT T O 40 AMPS 1200 V OLTS
Vdc
Vac
VPeak
Ove r Voltage Range
Turn-On Time
Control Voltage Range
Hz
V
