©2009 Littelfuse, Inc.
Revision: November 5, 2009
LA Varistor Series
Radial Lead Varistors > LA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/la.html for current information.
Part Numbering System
(Three or four digits -- 130V to 1,000V)
V XXXX LA
RELATIVE ENERGY INDICATOR
(One or Two Digits)
CLAMP VOLTAGE VARIANT
(One digit, where applicable)
P: LEAD-FREE AND RoHS
See OPTIONS CODES notes below
(See notes below)
BASE PART CODES
(See Ratings & Specifications tables and notes below)
SERIES + PACKAGING / LEAD STYLE
(See BASE PART CODES notes below)
LA = Bulk Pack / Straight Leads (standard)
LC = Bulk Pack / Crimped and Trimmed Leads
LS = Tape and Reel / Straight Leads
LT = Tape and Reel / Crimped Leads
LU = Tape and Reel / Under-Crimped Leads
Series + Packaging / Lead Style Designators:
X1347: Hi-Temperature phenolic coated option --
Phenolic Coated LA Series devices are available with improved
maximum operating maximum temperature of 125°C.
For additional information see bottom of page 113.
To order, add X1347 to end of part number (V230LA20AX1347
or V230LA20APX1347 for Lead Free/RoHS version).
Crimped leads are standard on LA Series varistors supplied in
tape and reel, denoted with "LT." For crimped leads without
trimming and any varitions other than that described above,
please contact Littelfuse.
For standard parts, use the BASE PART designator only.
For parts with non-standard options (such as additional form, packaging
and lead space options), use BASE PART + OPTION CODE.
OPTION CODE items are subject to availability and minimum order
requirements. Please contact a Littelfuse products representative for
additional information or questions
Leadfree / RoHS Designator:
For Leadfree and RoHS compliant parts add "P" after the BASE
PART number and before any other OPTION CODE:
BASE PART CODES:
X10: 10mm lead spacing option --
For 10 (-/+1) mm lead spacing (available on 20mm
diameter models only), append standard model
BASE PART number with "X10." Example:
X2855: Nickel Barrier coated wire option --
All standard parts use Tincoated Copper wire. Nickel
Barrier coated wire is available as an option, consisting
of Copper wire with a flashing of Nickel followed by
a top coating of Tin. To order append standard model
BASE PART number with "X2855." Example:
Littelfuse LA Series varistors are shipped standard in bulk pack
with straight leads and lead spacing outlined in the Package
Dimensions section of this data sheet. Contact your Littelfuse
sales representative to discuss non-standard options.