AC Line Filters Dual Mode SSHB Coils, 21H Series, High Impedance Type Overview Applications The KEMET SSHB coils are dual mode chokes with a wide LED lighting variety of characteristics. These hybrid coils combine Audio-visual equipment the two functions of normal mode countermeasure and O ffi c e au to ma ti o n e q u i p m e n t common mode noise suppression in just one coil. Reducing Power supplies the number of required products ensures cost savings and s pa c e e ffi c ie n c y. O u r p r o p r ie t a r y c o r e ma te r ials p r ov i d e optimized solutions for high-temperature requirements (standard type) or for high permeability needs (R type). In a d di ti o n , th e s p e c iall y d eve l o p e d s ha p e is e ffi c ie n t w i th normal noise suppression. Benefits Proprietary 5HT and 10H ferrite materials and equivalents Optimization of magnetic circuit and material One coil to suppress both common and normal noise Large inductance due to non-divided bobbin High permeability for R type 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 +13 0C fo r standard type 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 +12 0C fo r R type L ow l ea ka g e ma g n e ti c fl u x to o u t si d e U L 9 4 V0 fla m e r e t a r da n t r a te d bas e a n d b o b b i n Part Number System SSHB 21 H- R 03 1580 Core Orientation Rated Current Inductance (mH) Series Core Size Code Core Type and Bobbin Type (A) Minimum SSHB 21 H = Horizontal, bobbin without Blank = Standard 0 x = 0. x A x x x x = x x x . x m H sectional winding structure R = High permeability x x = x . x A x x x = x x . x 0 x x = x . x m H E xa mp l e s: 03 = 0.3 A E xa mp l e s: 15 = 1.5 A 1580 = 158.0 mH 825 = 82.5 mH 024 = 2.4 mH One world. One KEMET KEMET Electronics Corporation KEMET Tower One East Broward Boulevard LF0038 SSHB21H 2/3/2020 1 Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.comAC Line Filters Dual Mode SSHB Coils, 21H Series, High Impedance Type Magnetic Permeability of Ferrite Material I n o r d e r to a c hieve 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 ba n d. 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, 5HT, 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, 5HT 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 LF0038 SSHB21H 2/3/2020 2 Fort Lauderdale, FL 33301 USA 954-766-2800 www.kemet.com Magnetic Permeability