Basic Info.
Transport Package
Customization
Specification
40*30*20cm/carton
Product Description
Founded in 2015, KingStar Electronics is a Shenzhen-based high-tech company dedicated in R&D, producing, and selling of soft magnetic material and electronic components. Since its incorporation, it has been focusing on developing & promoting of wireless charging products, such as ferrite sheets, coils, modules, which are widely used in smart phones, smart watches, home appliance, and some high power electric products, such as e-bikes, e-vehicles, and etc. More than 80% of KingStar's products are for exportation, such as to South Korea, Europe, Japan, U.S, South Asia, especially to South Korea, for Samsung Electronics, which include the TX end ferrite used in Samsung S6, S7, S8, Note 5, S10 mobile phones, as well as its smart watches, such as Solis TX ferrite, Gear Pulse TX ferrite.
Apart from Qi-standards wireless charging products, we are also focusing on R&D of high-power wireless charging for electric bicycles and electric cars, with the e-bike wireless charging products to be put into market in middle of 2020 and mature e-car WC products to be ready within 3 years. The charging efficiency of our current e-bike wireless charging has reached 81% at the long distance 20mm, which is a real great breakthrough worldwide. Our goal is to make power usage is as simple at WiFi!
Most magnetic ferrite used in WC is MnZn ferrite, while for IoT and other high frequency application, we supply customers with NiZn ferrite.
1. KingStar Square Ferrite Sheet Series (KS series)
| TYPE | Dimensions (mm) | Material | Remark |
| A | B | C | D |
| KS120×60×0.5 | 120±1.0 | 60±0.6 | 0.5±0.1 | | RM95 | Soft Sheet |
| KS101×55×0.9 | 101±1.0 | 55±0.6 | 0.9±0.1 | | RM95 | Soft Sheet |
| KS97×50×1.1 | 97±1.0 | 50±0.6 | 1.1±0.1 | | RM95 | Hard Sheet |
| KS78×46.5×0.8 | 78±0.5 | 46.5±0.5 | 0.8±0.1 | | RM95 | Soft Sheet |
| KS76×45×0.87 | 76±0.5 | 45±0.5 | 0.87±0.1 | | RM95 | Hard Sheet |
| KS70×70×2.0 | 70±0.5 | 70±0.5 | 2.0±0.1 | | RM95 | Hard Sheet |
| KS65×65×1.0 | 65±0.5 | 65±0.5 | 1.0±0.1 | | RM95/RN80 | Hard Sheet |
| KS60×35×0.93 | 60±0.5 | 35±0.5 | 0.93±0.1 | | RM95 | Hard Sheet |
| KS57×49×1.0 | 57±0.5 | 49±0.5 | 1.0±0.1 | | RM95 | Soft Sheet |
| KS55x50.3x0.9 | 55±0.5 | 50.3±0.5 | 0.9±0.1 | | RN80 | Hard Sheet |
| KS53×53×0.5 | 53±0.5 | 53±0.5 | 0.5±0.1 | | RM95/RN80 | Soft Sheet |
| KS53×53×1.0 | 53±0.5 | 53±0.5 | 1.0±0.1 | | RM95/RN80 | Hard Sheet |
| KS53×53×2.5 | 53±0.5 | 53±0.5 | 2.5±0.1 | | RM95/RN80 | Hard Sheet |
| KS52.5×52.5×1.5 | 52.5±0.5 | 52.5±0.5 | 1.5±0.1 | | RM95 | Hard Sheet |
| KS52x48x1.0 | 52±0.5 | 48±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KS50×50×2.6 | 50±0.5 | 50±0.5 | 2.6±0.1 | | RN80 | Hard Sheet |
| KS50×50×2.5 | 50±0.5 | 50±0.5 | 2.5±0.1 | | RM95/RN80 | Hard Sheet |
| KS50×50×2.0 | 50±0.5 | 50±0.5 | 2.0±0.1 | | RM95/RN80 | Hard Sheet |
| KS50×50×1.2 | 50±0.5 | 50±0.5 | 1.2±0.1 | | RM95/RN80 | Hard Sheet |
| KS50×50×1.0 | 50±0.5 | 50±0.5 | 1.0±0.1 | | RM95/RN80 | Hard Sheet |
| KS50×50×0.5 | 50±0.5 | 50±0.5 | 0.5±0.1 | | RM95/RN80 | Hard Sheet |
| KS50×40×0.4 | 50±0.5 | 40±0.5 | 0.4±0.1 | | RM95/RN80 | Hard Sheet |
| KS50×30×0.9 (with R angle) | 50±0.5 | 30±0.5 | 0.9±0.1 | | RM95/RN80 | Hard Sheet |
| KS48×32×1.0 (with boss) | 48±0.5 | 32±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KS48×32×0.8 | 48±0.5 | 32±0.5 | 0.8±0.1 | | RM95/RN80 | Soft Sheet |
| KS48×32×0.5 | 48±0.5 | 32±0.5 | 0.5±0.1 | | RM95/RN80 | Soft Sheet |
| KS48×32×0.4 (with slot) | 48±0.5 | 32±0.5 | 0.4±0.1 | | RM95/RN80 | Hard Sheet |
| KS46×41×0.3 | 46±0.5 | 41±0.5 | 0.3±0.1 | | RM95 | Hard Sheet |
| KS46×36×0.5 | 46±0.5 | 36±0.5 | 0.5±0.1 | | RM95 | Hard Sheet |
| KS45.6×45.6×0.6 | 45.6±0.5 | 45.6±0.5 | 0.6±0.1 | | RM95/RN80 | Soft Sheet |
| KS45.5×45.5×0.6 (with R angle) | 45.5±0.5 | 45.5±0.5 | 0.6±0.1 | | RM95/RN80 | Hard Sheet |
| KS42×38×0.5 (with slot) | 42±0.5 | 38±0.5 | 0.5±0.1 | | RM95/RN80 | Soft Sheet |
| KS42×33×0.4 | 42±0.5 | 33±0.5 | 0.4±0.1 | | RM95 | Hard Sheet |
| KS39×39×0.7 | 39±0.5 | 39±0.5 | 0.7±0.1 | | RN80 | Hard Sheet |
| KS39×30×0.5 | 39±0.5 | 30±0.5 | 0.5±0.1 | | RM95/RN80 | Hard Sheet |
| KS38×32×0.8 | 38±0.5 | 32±0.5 | 0.8±0.1 | | RM95/RN80 | Hard Sheet |
| KS38×32×0.4 | 38±0.5 | 32±0.5 | 0.4±0.1 | | RM95/RN80 | Hard Sheet |
| KS35×35×0.5 | 35±0.5 | 35±0.5 | 0.5±0.1 | | RM95 | Hard Sheet |
| KS35×35×φ10.3×0.5 | 35±0.5 | 35±0.5 | 0.5±0.1 | 10.3±0.15 | RM95/RN80 | Hard Sheet |
| KS32×31×0.25 | 32±0.5 | 31±0.5 | 0.25±0.1 | | RM95 | Soft Sheet |
| KS30×30×0.5 | 30±0.5 | 30±0.5 | 0.5±0.1 | | RM95 | Soft Sheet |
| KS28×14×0.8 | 28±0.5 | 14±0.5 | 0.8±0.1 | | RM95 | Hard Sheet |
| KS26×17.5×1.0 | 26±0.5 | 17.5±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KS20×20×20 | 20±0.5 | 20±0.5 | 20±0.5 | | RM95 | Hard Sheet |
| KS19×16×0.5 | 19±0.5 | 16±0.5 | 0.5±0.1 | | RM95 | Soft Sheet |
| KS10×10×10 | 10±0.5 | 10±0.5 | 10±0.5 | | RM95 | Hard Sheet |
| KS9.75×7.3×1.0 | 9.75±0.5 | 7.3±0.5 | 1.0±0.1 | | RN80 | Hard Sheet |
2.KingStar Round Ferrite Sheet Series (KR series)
| TYPE | Dimensions (mm) | Material | Remark |
| A | B | C | D |
| KR55×2.5 | 55±0.5 | | 2.5±0.1 | | RN80 | Hard Sheet |
| KR55×0.7 | 55±0.5 | | 0.7±0.1 | | RN80 | Hard Sheet |
| KR52×0.8 (with slot) | 52±0.5 | | 0.8±0.1 | | RM95 | Hard Sheet |
| KR50×1.0 | 50±0.5 | | 1.0±0.1 | | RM95 | Hard Sheet |
| KR50×1.0 (with slot) | 50±0.5 | | 1.0±0.1 | | RM95 | Hard Sheet |
| KR50×0.8 (with slot) | 50±0.5 | | 0.8±0.1 | | RM95/RN80 | Hard Sheet |
| KR50×φ5.3×2.6 | 50±0.5 | 5.3±0.15 | 2.6±0.1 | | RM95 | Hard Sheet |
| KR50×φ5.3×1.0 | 50±0.5 | 5.3±0.15 | 1.0±0.1 | | RM95 | Hard Sheet |
| KR50×φ5.0×1.0 | 50±0.5 | 5.0±0.15 | 1.0±0.1 | | RM95 | Hard Sheet |
| KR50×φ5.0×0.5 | 50±0.5 | 5.0±0.15 | 0.5±0.1 | | RM95 | Hard Sheet |
| KR48.5×1.0 | 48.5±0.5 | | 1.0±0.1 | | RM95/RN80 | Hard Sheet |
| KR48.5×0.8 | 48.5±0.5 | | 0.8±0.1 | | RM95/RN80 | Hard Sheet |
| KR48.5×φ5.3×1.0 | 48.5±0.5 | 5.3±0.15 | 1.0±0.1 | | RM95/RN80 | Hard Sheet |
| KR48.5×φ5.3x0.8 | 48.5±0.5 | 5.3±0.15 | 0.8±0.1 | | RM95/RN80 | Hard Sheet |
| KR40×φ20×0.8 | 40±0.5 | 20±0.15 | 0.8±0.1 | | RM95 | Soft Sheet |
| KR40×0.6 | 40±0.5 | | 0.6±0.1 | | RM95/RN80 | Soft Sheet |
| KR35×φ10.1×0.5 | 35±0.5 | 10.1±0.15 | 0.5±0.1 | | RM95/RN80 | Soft Sheet |
| KR35×φ5.3×0.5 | 35±0.5 | 5.3±0.15 | 0.5±0.1 | | RM95/RN80 | Soft Sheet |
| KR32×0.5 (with slot) | 32±0.5 | | 0.5±0.1 | | RM95 | Soft Sheet |
| KR30×φ5.3×1.0 | 30±0.5 | 5.3±0.15 | 1.0±0.1 | | RM95 | Hard Sheet |
| KR29.5×1.5 | 29.5±0.5 | | 1.5±0.1 | | RM95 | Hard Sheet |
| KR29.5×0.5 | 29.5±0.5 | | 0.5±0.1 | | RM95 | Hard Sheet |
| KR26.6×1.0 | 26.6±0.5 | | 1.0±0.1 | | RM95 | Hard Sheet |
| KR23×0.93 | 23±0.5 | | 0.93±0.1 | | RM95 | Hard Sheet |
| KR23×0.7 | 23±0.5 | | 0.7±0.1 | | RM95 | Hard Sheet |
| KR22×0.6 | 22±0.5 | | 0.6±0.1 | | RM95 | Soft Sheet |
| KR20×3.2 | 20±0.5 | | 3.2±0.1 | | RN80 | Hard Sheet |
| KR20×1.0 | 20±0.5 | | 1.0±0.1 | | RM95 | Hard Sheet |
| KR20×0.3 | 20±0.5 | | 0.3±0.1 | | RM95 | Hard Sheet |
| KR50×3.0 | 50±0.5 | | 3.0±0.2 | | RM3K | Rubber Sheet |
| KR49×2.3 | 49±0.5 | | 2.3±0.2 | | RM3K | Rubber Sheet |
| KR32×2.4 | 32±0.5 | | 2.4±0.2 | | RM3K | Rubber Sheet |
3. KingStar Exotic-Shaped Ferrite Sheet Series (KE series)
| TYPE | Dimensions (mm) | Material | Remark |
| A | B | C | D |
| KE95.5×56×1.3 | 95.5±0.9 | 56±0.6 | 1.3±0.1 | | RM95 | Hard Sheet |
| KE88.5×60×1.0 | 88.5±0.9 | 60±0.6 | 1.0±0.1 | | RM95 | Hard Sheet |
| KE64×60×0.8 | 64±0.5 | 60±0.5 | 0.8±0.1 | | RM95 | Soft Sheet |
| KE57×48×0.85 | 57±0.5 | 48±0.5 | 0.85±0.1 | | RM95/RN80 | Hard Sheet |
| KE56×50×1.0 | 56±0.5 | 50±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KE56×47.85×1.0 | 56±0.5 | 47.85±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KE52×47×0.8 | 52±0.5 | 47±0.5 | 0.8±0.1 | | RM95/RN80 | Hard Sheet |
| KE52×44×0.9 | 52±0.5 | 44±0.5 | 0.9±0.1 | | RM95 | Hard Sheet |
| KE49.4×49.4×1.0 | 49.4±0.5 | 49.4±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KE49×48×1.0 | 49±0.5 | 48±0.5 | 1.0±0.1 | | RM95 | Hard Sheet |
| KE47×0.96 | 47±0.5 | | 0.96±0.1 | | RM95 | Hard Sheet |
| KE47×0.8 | 47±0.5 | | 0.8±0.1 | | RM95 | Hard Sheet |
| KE47×0.7 | 47±0.5 | | 0.7±0.1 | | RM95 | Hard Sheet |
| KE30×4.8 | 30±0.5 | | 4.8±0.1 | | RM95 | Hard Sheet |
| KE25×2.5 | 25±0.5 | | 2.5±0.1 | | RM95 | Hard Sheet |
KingStar Ferrite Sheet Material Parameters (MnZn Material)
| Parameter | Symbol | Unit | RM95 |
| Initial Permeability | μi | | 3300±25% |
Flux Density
(H=1194A/m) | 25oC | Bs | mT | 530 |
| 100 oC | 410 |
| Residual Flux Density | 25 oC | Br | mT | 85 |
| Coercive Force | 25 oC | Hc | A/m | 9.5 |
| Power Loss | 100KHz 200mT | 25 oC | Pv | kw/m3 | 390 |
| 80 oC | 320 |
| 100 oC | 335 |
| 120 oC | 390 |
| Resistivity | ρ | Ω*m | 6 |
| Curie Temperature | Tc | oC | >215 |
| Density | d | kg/m3 | 4800 |
KingStar Ferrite Sheet Material Parameters (NiZn Material)
| Parameter | Symbol | Unit | RN80 |
| Initial Permeability | μi | | 800±25% |
| Saturation Flux Density (H=1194A/m) | Bs | mT | 360 |
| Residual Flux Density | Br | mT | 210 |
| Coercivity | Hc | A/m | <18 |
| Curie Temperature | Tc | oC | >160 |
| Relative Loss Factor | tanδ/μi | 10-6 | <10 |
| Disaccommodation Factor | DF | 10-6 | |
| Resistivity | ρ | Ω*m | 106 |
| Density | d | kg/m3 | 4800 |
Address:
No 4, Yuanhu Road Zhangbei Industrial Park, Shenzhen, Guangdong, China
Business Type:
Manufacturer/Factory
Business Range:
Apparel & Accessories, Computer Products, Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components
Management System Certification:
ISO 9001
Company Introduction:
KingStar Electronics Technology Co., Ltd is a high-tech enterprise, specializing in developing, manufacturing, and promoting soft magnetic ferrite products. Our products include ferrite sheets used for wireless charging and NFC & RFID, as well as soft ferrite cores with high permeability, high frequency, wide temperature, high impedance, low loss, and DC bias. KingStar has been committed to developing and promoting ferrite sheets (both hard and soft sheets) for wireless charging and is a leading professional wireless-charging ferrite manufacturer with a great variety of products and strong product availability. Our ferrite sheets are applied in consumer electronics, such as smart phones, digital cameras, and PCS, as well as small household appliance, TX and RX ends for car-carrying wireless chargers. These ferrite sheets are 0.4 mm to 3 mm in thickness, and has excellent shielding performance, high conversion efficiency, small heat generation, and stable performance. Our products have been sold to many world renowned companies in the United States, Japan, South Korea, and other countries and have a good reputation in the industry.
