The LA Series of transient voltage surge suppressors are radial-lead varistors (MOVs) that are designed to be operated continuously across AC power lines. These UL recognized varistors require very little mounting space, and are offered in various standard lead form options.

The LA Series varistors are available in four model sizes: 7mm, 10mm, 14mm and 20mm; and have a V_M(AC)RMS voltage range from 130V to 1000V, and an energy absorption capability up to 360J. Some LA series model numbers are available with clamping voltage selections, designated by a model number suffix of either A or B. The “A” selection is the standard model; the “B” selection provides a lower clamping voltage.

See LA Series Device Ratings and Specifications table for part number and brand information.

Continuous:
Steady State Applied Voltage:
AC Voltage Range (V_M(AC)RMS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 130 to 1000  V
DC Voltage Range (V_M(DC) ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 175 to 1200  V
Transients:
Peak Pulse Current (I_TM)
For 8/20μs Current Wave (See Figure 2) . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . .. .. . . . . 1200 to 6500  A
Single Pulse Energy Range
For 10/1000μs Current Wave (W_TM ) . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . ... 11 to 360  J
Operating Ambient Temperature Range (T_A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. .-55 to 85  ℃
Storage Temperature Range (T_STG) . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . ...  -55 to 125 ℃
Temperature Coefficient (□V) of Clamping Voltage (V_C) at Specified Test Current . . ... . <0.01  %/℃
Hi-Pot Encapsulation (Isolation Voltage Capability) . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 2500  V
     (Dielectric must withstand indicated DC voltage for one minute per MIL-STD 202, Method 301)
Insulation Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1000  MΩ
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

• Lead-free and RoHS compliant option available. Please see the device and ratings specifications table for more information.
• Energy Absorption Capability (W_TM) . . .. . . . . . . . . . . . . . . . . Up to 360J
• Wide Operating Voltage Range V_M(AC)RMS . . . . . . . . . . . . .  130V to 1000V
• No Derating Up to 85oC Ambient
• Available in Tape and Reel or Bulk Pack