©2009 Littelfuse, Inc.
Revision: November 5, 2009
ZA Varistor Series
Radial Lead Varistors > ZA Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/za.html for current information.
Part Numbering System
NOMINAL VOLTAGE (V
(One, Two or Three Digits)
V XXX ZA
RELATIVE ENERGY INDICATOR
(One or Two Digits)
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)
ZA = Bulk Pack / Straight Leads (standard)
ZC = Bulk Pack / Crimped and Trimmed Leads
ZS = Tape and Reel / Straight Leads
ZT = Tape and Reel / Crimped Leads
ZU = Tape and Reel / Under-Crimped Leads
Series + Packaging / Lead Style Designators:
Littelfuse ZA 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
Crimped lead ZA Series varistors are supplied standard in tape and
reel, denoted with "ZT."
"ZC" style is supplied in bulk only.
"ZU" style is supplied in tape and reel only.
For crimped leads without trimming and any varitions other than that
described above, please contact Littelfuse.
TAPE & REEL QUANTITIES
Quantity Per Reel
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 (0.394-/+0.039 in) 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: