Varistor Metal Oxide Varistor Products Page 146 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Radial Lead Varistors > ZA Series Part Numbering System For "VARISTOR" NOMINAL VOLTAGE (V NOM ) (One, Two or Three Digits) V XXX ZA XX RELATIVE ENERGY INDICATOR (One or Two Digits) LEAD-FREE, HALOGEN-FREE AND RoHS COMPLIANT INDICATOR P See OPTIONS CODES notes below XXXXX OPTION CODES (See notes below) BASE PART CODES (See Ratings & Specifications tables and notes below) SERIES + PACKAGING / LEAD STYLE DESIGNATOR (See BASE PART CODES notes below) Z A = Bulk Pack / Straight Leads (standard) Z C = Bulk Pack / Crimped and Trimmed Leads Z S = Tape and Reel / Straight Leads Z T = Tape and Reel / Crimped Leads Z U = Tape and Reel / Under-Crimped Leads COPPER ELECTRODE W Ordering Notes: Series + Packaging / Lead Style Designators: Ordering examples: Straight Lead Bulk Pack (standard) Straight Lead Tape & Reel Crimped Lead Tape & Reel Crimped & Trimmed Lead Bulk Pack Under- Crimp Lead Tape & Reel V18 ZA 3P V18 ZS 3P V18 ZT 3P V18 ZC 3P V18 ZU 3P Standard Model Order As V18ZA40P X10 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. Tape & Reel Quantities: 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. Packaging and Quantities: Device Size Voltage Quantity Per Reel "S" Reel "T" Reel "U" Reel 5mm All 1000 7mm All 1000 10mm All 500 14mm < 300V 500 20mm < 300V 500 400 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 BASE PART CODES: OPTION CODES: Standard Model Order As V18ZA40P V18ZA40P X2855 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 tinned copper clad steel 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: X1347: Hi-Temperature phenolic coating option -- Phenolic Coated C-III Series devices are available with improved maximum operating maximum temperature of 125C. To order, add X1347 to end of part number (Example: V22ZA3PX1347). For additional information please refer to the section labeled "Phenolic Coating Option" within this document.

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