Varistor Products High Reliability Varistors High Reliability Varistors MIL QPL Description DA Series Littelfuse High Reliability Varistors offer the latest in increased product performance, and are available for applications requiring quality and reliability assurance levels consistent with military or other standards (MIL-STD-19500, MIL-STD-750, Method 202). Additionally, Littelfuse Varistors are inherently radiation hardened compared to Silicon Diode suppressors as illustrated in Figure 1. ZA Series Littelfuse High-Reliability Varistors involve ve categories: DB Series 1 DSSC Qualied Parts List (QPL) MIL-R-83530 (4 items presently available) Agency Approvals 2 Littelfuse High Reliability Series TX Equivalents t EF WQQSP %44 t FE WQQSP *40 (29 items presently available) t 21- -JTUFE t FE FDPHOJ 6- 3 t FE & FSUJm t FE FSUJm 4 3 Custom Types Processed to customer-specic requirements - (SCD) or to Standard Military Flow 4 Commercial Item Descriptors (CID) identied for Government use: CID AA-55564-3 - Littelfuse ZA Series CID AA-55564-2 - Littelfuse DA, DB Series 2008 Littelfuse, Inc. 197 High Reliability Varistors Specications are subject to change without notice. Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html Revision: January 9, 2009 for current information. High Reliability MOVsVaristor Products High Reliability Varistors 1) DSSC Qualied Parts List (QPL) MIL-R-83530 This series of varistors are screened and conditioned in accordance with MIL-R-83530 as outlined in Table 2. Manufacturing system conforms to MIL-I-45208 MIL-Q-9858. Table 1. MIL-R-83530/1 Ratings and Characteristics Voltage Rating Clamping Nominal Clamping Part (V) Energy Voltage Nearest Varistor Tolerance Voltage Capacitance Number Rating At Peak I (A) Commercial TM Voltage (%) at 100A at 1MHz (pF) M83530/ (J) Current Equivalent (RMS) (DC) (V) (V) Rating (V) 1-2000B 200 -/+10 130 175 50 325 3800 570 6000 V130LA20B 1-2200D 220 +10, -5 150 200 55 360 3200 650 6000 V150LA20B 1-4300E 430 +5, -10 275 369 100 680 1800 1200 6000 V275LA40B 1-5100E 510 +5, -10 320 420 120 810 1500 1450 6000 V320LA40B Table 2. Mil-R-83530 Group A, B, and C Inspections AQL Number Failures Inspection (Percent Major Minor of Sample Allowed Defective) Units Group A SUBGROUP 1 High Temperature Life (Stabilization 100% - - - - Bake) Thermal Shock 100% - - - - Power Burn-In 100% - - - - Clamping Voltage 100% - - - - Nominal Varistor Voltage 100% - - - - SUBGROUP 2 Visual and Mechanical Examination - 1.0% AQL 7.6% LQ 25% AQL 13.0% LQ Per Plan - Body Dimensions - Per Plan - Diameter and Length of Leads - Per Plan - Marking - Per Plan - Workmanship - Per Plan - SUBGROUP 3 Solderability - - - Per Plan - Group B SUBGROUP 1 Dielectric Withstanding Voltage - - - Per Plan - SUBGROUP 2 Resistance to Solvents - - - Per Plan - SUBGROUP 3 Terminal Strength (Lead Fatigue) - - - Per Plan - Moisture Resistance - - - Per Plan - Peak Current - - - Per Plan - Energy - - - Per Plan - Group C EVERY 3 MONTHS High Temperature Storage - - - 10 0 Operating Life (Steady State) - - - 10 0 Pulse Life - - - 10 0 Shock - - - 10 0 Vibration - - - 10 0 Constant Acceleration - - - 10 0 Energy - - - 10 0 2008 Littelfuse, Inc. 198 High Reliability Varistors Specications are subject to change without notice. Please refer to www.littelfuse.com/series/za hirel.html or /db hirel.html Revision: January 9, 2009 for current information.