POLYFUSE® Resettable PTCs Axial Leaded Strap VL Series Description The new VL series device provides reliable, noncycling protection against overcharging and short circuits events for rechargeable battery cells where resettable protection is desired. Features • RoHS compliant and lead-free • Weldable nickel terminals • Low resistance • Slim, low profile design Agency Approvals AGENCY • Compact design saves board space AGENCY FILE NUMBER Applications E183209 • Rechargeable battery cell protection R50082521 Electrical Characteristics Part Number I hold (A) I trip (A) V max (Vdc) I max (A) Pd max. (W) 12VL170 1.70 4.10 12 100 12VL175L 1.75 4.20 12 12VL175XL 1.75 4.20 12 12VL230 2.30 5.00 12 Maximum Time To Trip Agency Approvals Resistance Current (A) Time (Sec.) R min (Ω) R typ (Ω) R 1max (Ω) 1.4 8.50 5.00 0.018 0.032 0.064 X X 100 1.4 8.75 5.00 0.017 0.031 0.062 X X 100 1.4 8.75 5.00 0.017 0.031 0.062 X X 100 1.5 10.00 5.00 0.012 0.018 0.036 X X I hold = Hold current: maximum current device will pass without tripping in 20°C still air. R typ = Typical resistance of device in initial (un-soldered) state. I trip = Trip current: minimum current at which the device will trip in 20°C still air. R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow soldering of 260°C for 20 sec. V max = Maximum voltage device can withstand without damage at rated current (I max) Caution: Operation beyond the specified rating may result in damage and possible arcing and flame. I max = Maximum fault current device can withstand without damage at rated voltage (Vmax) P d = Power dissipated from device when in the tripped state at 20°C still air. R min = Minimum resistance of device in initial (un-soldered) state. VL Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Axial Leaded Strap Temperature Rerating Ambient Operation Temperature -40°C -20°C 0°C 25°C Part Number 40°C 50°C 60°C 70°C Hold Current (A) 12VL170 3.5 2.9 2.4 1.70 1.2 1.0 0.7 0.3 12VL175L 3.5 2.9 2.4 1.75 1.3 1.0 0.8 0.3 12VL175XL 3.5 2.9 2.4 1.75 1.3 1.0 0.8 0.3 12VL230 5.0 4.2 3.4 2.30 1.7 1.3 0.9 0.4 Average Time Current Curves Temperature Rerating Curve 220% 190% 170% Percentage of Rated Current 150% 130% 110% 90% 70% 50% 30% 10% -40 -30 -20 A: 12VL230 -10 0 10 20 30 40 Temperature (°C) 50 60 70 80 C: VLD170F B: 12VL175L, 12VL175XL The average time current curves and temperature rerating curve performance is affected by a number or variables, and these curves provided as guidance only. Customer must verify the performance in their application. VL Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse POLYFUSE® Resettable PTCs Axial Leaded Strap Physical Specifications Environmental Specifications 0.13mm nominal thickness, quarter-hard nickel Terminal Material Operating/Storage Temperature -40°C to +85°C Passive Aging +60°C, 1000 hours ±20% typical resistance change -40°C, 1000 hours ±5% typical resistance change Humidity Aging +60°C, 95%R.H. 1000 hours ±30% typical resistance change Thermal Shock MIL-STD-202G, Method 107G +85°C to -40°C 10 times ±5% typical resistance change Vibration MIL-STD-883C, Method 2026 No change Insulating Material Polyester tape Dimensions Figure 1 Figure 2 A A Marking B E D1 Marking B E D1 D2 D2 C C Part Number A Inches B mm Inches C mm D1 Inches mm Double Sided Marking Inches D2 mm Inches E mm Inches Fig. mm Top Side Max. Min. Max Min Max Min Max Min Max Min Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. 12VL170 0.82 0.91 20.80 23.20 0.14 0.15 3.50 3.90 -- 0.03 12VL175L 1.15 1.25 29.30 31.70 0.11 0.13 2.90 3.30 -- 0.03 12VL175XL 1.00 1.11 25.50 28.20 0.14 0.15 3.50 3.90 -- 0.03 -- 0.80 12VL230 0.82 0.91 20.90 23.10 0.19 0.21 4.90 5.30 -- 0.03 -- 0.80 Littelfuse Trademark -- Product Series 0.80 0.18 0.26 4.50 6.50 0.18 0.26 0.01 0.26 2.40 2.60 1 230 -- 0.80 0.20 0.27 5.20 6.80 0.39 0.49 10.00 12.50 0.02 0.49 2.40 2.60 2 0.34 Current 0.41Rating8.70 10.30 0.22 0.29 5.70 7.30 0.01 0.29 2.40 2.60 1 0.16 0.23 4.10 5.80 0.01 0.23 3.90 4.10 2 VL 0.23 4.10 5.80 0.16 4.50 6.50 Bottom Side Product Series VL 230 XXAK Current Rating Littelfuse Trademark VL Series Specifications are subject to change without notice. Lot Number (Contact Littelfuse for additional information) Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse A A Marking B E D1 ® Marking POLYFUSE Resettable PTCs E B D1 D2 Axial Leaded Strap D2 C C Part Marking System Part Numbering System 12 VL 175 XL U Double Sided Marking Top Side QUANTITY CODE: U = 500 (bulk) Product Series VL LEAD OPTIONS: Blank = standard L = long lead XL = extended long lead 230 Littelfuse Trademark Current Rating HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS) SERIES Bottom Side VOLTAGE RATING (VDC) Product Series VL 230 XXAK Littelfuse Trademark Current Rating Lot Number (Contact Littelfuse for additional information) Packaging I hold (A) All Ratings Packaging Option Quantity Quantity & Packaging Codes Bulk 500 U VL Series Specifications are subject to change without notice. Electronics Designers Guide www.littelfuse.com ©2006 Littelfuse