AC Line Filters Earth Inductors, SNG Series Overview Applications The KEMET SNG coils are earth inductors with a wide Industrial equipment variety of characteristics. These coils are designed Home appliances with our proprietary ferrite cores and are useful noise countermeasures for ground wires. Benefits Proprietary 700L and 5H ferrite material and equivalents Ground wire noise suppression W i d e va r ie t y of sizes a n d s p e c i fi c a ti o ns O p e r a ti n g te m p e r a t u r e r a n g e fr o m 25 C to +105 C U L 9 4 V2 fla m e r e t a r da n t r a te d c a p TV approved (for the Mn-Zn ferrite parts) Part Number System SNG- 19 D A- 014 Inductance (H) Series Core Size Code Core Type Core Case Type +5 0 % /3 0 % SNG 19 Blank = Mn-Zn ferrite A = Normal 0 x x = x x H 25 D = Ni-Zn ferrite B = W i t h fi x i n g h o l e x x x = x x x H E xa mp l e s: 014 = 14 H 600 = 600 H One world. One KEMET KEMET Electronics Corporation KEMET Tower One East Broward Boulevard LF0062 SNG 2/19/2020 1 Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.comAC Line Filters Earth Inductors, SNG Series Magnetic Permeability of Ferrite Material I n o r d e r to a c hieve m os t e ffi c ie n t n oise r e d u c ti o n , i t is i m p o r t a n t to se l e c t th e ma te r ial a c c o r di n g to th e t a r g e t f r e q u e n c y band. Depending on its magnetic permeability, a particular ferrite material will be effective in a certain frequency band. A schematic representation of the relationship between the magnetic permeability of each material and the corresponding effective band range is shown in Figure 1. Materials with higher magnetic permeability are effective in the lower frequency range, while those with lower magnetic permeability are effective in the higher frequency range. Thus, Mn-Zn products are mainly used for reducing conduction noise, while Ni-Zn products are commonly used for radiation noise countermeasures. The effective frequency range varies depending on core shape, size and number of windings. This frequency dependence of th e ma g n e ti c p e r m ea b ili t y as s h ow n i n th e fi g u r e s e r ves fo r r e fe r e n c e p u r p os es o nl y a n d i t s h o u l d b e tes te d o n th e a c t ual device to determine its effectiveness. S18H, S15H, 10H, 7H, 5H, 1400L and 700L are KEMETs proprietary ferrite material names. Other materials can also be available on request. Figure 1 - Relationship between the magnetic permeability of each material and its effective frequency range 20,000 Higher magnetic permeability: Higher noise suppression effect Mn-Zn Series in the lower frequency range S18H S15H 10H 10,000 Lower magnetic permeability: Higher noise suppression effect 7H in the higher frequency range 5H Ni-Zn Series 1400L 700L 0 10 kHz 100 kHz 1 MHz 10 MHz 100 MHz 1 GHz Effective Frequency Range KEMET Electronics Corporation KEMET Tower One East Broward Boulevard LF0062 SNG 2/19/2020 2 Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.com Magnetic Permeability