NVF metal oxide varistor (nonflammable coated) EU NEW features • Varistors have two-way symmetries and can absorb positive and negative surges • Flame retardant SILICONE (UL94V-0) outer coating (UL Registered Marking) • Products meet EU RoHS requirements dimensions and construction Type Insulation Coating D T Electrodes NVF10U Varistor Element Lead Wire D (max.)* .591 - .630 (15.0 - 16.0) Dimensions inches (mm) T (max.)* H (max.) .268 - .453 (6.8 - 11.5) .866 (22.0) L .138±.020 (3.5 - 0.5) * D max. and t ma. vary according to the varistor voltage H L ordering information New Part # NVF Type 10 Diameter of Element 10: ø10mm U C Series U: U series Termination Material C: Sn-Cu D Inner Connect Solder Material D: SnAgCu F Forming & Packaging F: L= 3.5mm 470 Varistor Voltage 470V 470 applications and ratings Part Designation NVF10UCDF220 NVF10UCDF240 NVF10UCDF270 NVF10UCDF430 NVF10UCDF470 NVF10UCDF510 NVF10UCDF620 NVF10UCDF680 Varistor Voltage (V) Maximum Allowable Voltage A.C.(Vr.m.s.) D.C.(V) 140 150 175 275 300 320 385 420 180 200 225 350 385 410 505 560 198~242 216~264 247~303 387~473 423~517 459~561 558~682 612~748 Maximum Energy E (J) T= 2ms 27.5 30.0 35.0 55.0 60.0 67.0 67.0 67.0 Maximum Peak Current T= 8/20µs (A) Ip(1 time) 3500 Ip(10000 times) Clamping Volume V25A 360 395 455 710 775 845 1025 1120 150 Operating temperature range: -40°C to +85°C Storage temperature range: -40°C to +125°C For further information on packaging, please refer to Appendix C. Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 12/04/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com 285 circuit protection 7.5±1 ø0.8 NVF metal oxide varistor (nonflammable coated) environmental applications Voltage Current Curves (Ta = +25°C) 10000 Max.Leakage Current Max.Clamping Voltage NVF10UCDF680 NVF10UCDF620 NVF10UCDF510 NVF10UCDF470 NVF10UCDF430 NVF10UCDF270 NVF10UCDF240 NVF10UCDF220 Voltage (V) 1000 100 10 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 10 2 10 3 10 4 Current (A) Performance Characteristics circuit protection Parameter Varistor Voltage Resistance to Solder Heat Solderability Rapid Change of Temperature Requirement ∆ V1±% Within specified tolerance ±5% no abnormality in appearance 95% coverage minimum ±5% no abnormality in appearance Test Method Voltage between terminals when the specified current is flowed 260°C ± 5°C, 10 seconds ± 1 second 230°C ± 5°C, 5 seconds ± 0.5 second/250°C ± 5°C, 5 seconds ± 0.5 second (Pb free) -40°C (30 minutes)/ +125°C (30 minutes), 50 cycles Maximum Peak Current ±10% no abnormality in appearance Rated impulse current of (T=8/20µ seconds), positive or negative applied once Maximum Energy ±10% no abnormality in appearance A single standard impulse of (T=2m second), once High Temperature Life with d.c. Bias ±10% no abnormality in appearance 85°C ± 5°C, 1000h, Load: Maximum allowable circuit voltage (Vd.c.) High Temperature & High Humidity Life with d.c. Bias ±10% no abnormality in appearance 85°C ± 5°C, 85% RH, 1000h, Load: Maximum allowable circuit voltage (Vd.c.) High Temperature & High Humidity Storage Life ±5% no abnormality in appearance 80°C ± 5°C, 95% RH, 1000h High Temperature Storage Low Temperature Storage Peak Current Life ±5% no abnormality in appearance ±5% no abnormality in appearance ±10% no abnormality in appearance 125°C ± 5°C, 1000h -40°C ± 5°C, 1000h Rated impulse current of (T=8/20µ seconds), 10,000 times, interval 10 seconds Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 286 12/04/14 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com