Amorphous choke cores ✉ have superior magnetic characteristics, such as lower core loss, when compared with conventional crystalline magnetic materials.
Technical advantage Where typical ferrite cores can only operate up to a flux saturation level (Bsat) of 0.49 Tesla, amorphous metal cores can be operated at 1.56 Tesla. Combined with operating at permeability similar to high-end ferrites and the flexibility of manufacturing large cores sizes these cores can be an ideal solution for many of components.
| Product families | 1. Car Audio ✉ | 2. Low Profile ✉ | 3. PFC Output ✉ |
Navigation Choke Core
NC series amorphous choke cores are the ideal solutions for implementing noise suppression chokes that is generating from alternator, engine and ignition in car audio and car navigation systems. The NC series choke are manufactured with thin gauge iron-based amorphous alloy. This thin gauge ribbon offers a better frequency characteristics up to 1 MHz than conventional materials like El type silicon steel. Overall the audible frequency ranges, the inductance show a nearly constant. This type of ironbased amorphous alloys offer several properties and / or property combinations that are not parallel by other competing material such as silicon steel.
The geometrical shape of toroid offers a lowest spatial magnetic leakage flux densities around the choke core. Therefore, it can be easily mounted on car audio and / or car navigation circuit boards since these type of amorphous chokes are available in pin-type configurations. When the audio system is under the state of low output power and low sound density, the inductance of the choke is too low, the signal-to-noise ratio goes small. In this case it can be easily hear the unwanted sound noise form the system.
SHINHOM new launched NC series chokes shows high inductances even at high DC biasing current. So, it can be offer a good design solutions to eliminate the alternator noise in car audio and car navigation systems. Significant component size reduction is achieved using NC series noise suppression choke for automobile audio/ navigation systems.
FEATURE:
- Toroidal shape without gap, therefore it have a lowest magnetic leakage flux density.
- Designable smaller/lighter component size /weight than El choke core
- Designable in pin-type SMD components
- Higher inductance at medium / high alternator speed
- Optimized S/N ratio in all power ranges
- Superior frequency characteristics than El choke
- Offer a good solution for high frequency harmonic noises
- Higher impulse attenuation properties
- Low DC resistance
- UL94-VO compliant & UL746-B compliant
APPLICATION:
- Noise preventive use for alternator superposed to automobile mounting equipment such as car audio /navigation system
- LC filter choke for reduction of engine noise
- Normal mode choke for anti-EMI measurement
- Radio power system
- Smoothing chokes for switch-mode power supplies
- Impulse noise preventive use in DC power line of automobile
- Impulse noise preventive use in general purpose power supplies

DESCRIPTION:
C series low-power inductor chokes are the ideal solutions for implementing miniature DC/DC converter for mobile products such as PDA, mobile phone, notebook computer and adapter, etc. Furthermore, it offers a good solutions in Automobile electronic applications.
C-series made of iron-based amorphous alloys offer a better DC bias properties with lower winding turns that are not paralleled by other competing materials such as ferrites, iron-powder, sendust and permeability.
SHINHOM launched a new class of low-profile choke series with easy winding and more strengthened in mechanical during wound. The C-series made by iron based amorphous alloys with high saturation flux density of around 1.5T.
SHINHOM new revised economical up-to-date technologies on low-profile C-series manufacturing are based on our precise and years of experience in production technology. SHINHOM are pioneering new levels of performance by offering engineers new acceptable low-profile power line choke cores and low-profile noise filtering applications with excellent quality levels than ever before.
Based on customers requirement, SHINHOM can satisfy by good design solutions through our value added technical and manufacturing services.
FEATURE:
- Low-profile SMD and THD type is available
- Miniature
- Magnetic shield type
- Good EMI performances
- Suitable for high density mounting
- Low power consumption
- High withstanding voltage
- High mechanical strength
- Easy to wound
APPLICATION:
- DC/DC converters in PDA system
- AC/DC converters in adapter for mobile products
- DC/DC converters in mobile phone
- Output inductors for smaller size of DC/DC converter
- DC/DC converters for mobile CPU operation
- Single output SMPS for DC/DC converter module
- Pulse frequency modulation (PFM) integrated circuit below 10W class
- Pulse width modulation (PWM) integrated circuit above 10W class
- Battery charger
- Miniature type of automobile circuit applications

DESCRIPTION:
NC series amorphous choke cores are made of thin iron-based amorphous alloy. This type of iron-based amorphous alloys offer several properties that are not paralleled by other competing materials such as ferrites, iron-powder, sendust and permalloys.
The iron-based amorphous alloy shows a high permeability, a high saturation induction, low losses and high curie temperature distinct from the operating one.
However, past days, most engineers in switch-mode power supply design could not use the iron-based amorphous choke cores because of following two critical reasons: one is rather expensive and the other is higher temperature rise when compared superpermalloy and sendusts. Since the above mentioned reasons, iron-based amorphous choke cores have been used in switch-mode power supply for the special purpose for the last few decades.
Now, with the introduction of our new GO-100 series choke core product range, SHINHOM offer the real performance leader. Our expertise in iron-based amorphous choke core manufacturing system has enabled us to significantly reduce achieved ones. Furthermore, now it is a available to use amorphous choke cores in switch-mode power supply with a competitive price than other industry standard power cores like sendust.
FEATURE:
- High saturation flux density of 1.56T.
- Significant size reduction
- Extended bias characteristics can store more higher energy capacity
- Lower hysteresis losses
- Higher efficiency
- Fewer winding turns result in lower copper losses
- UL94-VO compliant
APPLICATION:
- Smoothing chokes for power supplies
- Multiple-winding coupled chokes for cross-regulation in switch-mode power supplies
- PFC chokes for general purpose industrial power supplies
- Output chokes for general purpose industrial power supplies
- PFC chokes for telecommunication power supply rectifiers
- DC/DC converter chokes
- PFC chokes for networking equipment power supplies
- Output chokes for general purpose industrial power supplies
- Differential input chokes
- Flyback transformers

SHINHOM is dedicated to setting a high bar of excellence for industries that integrate or utilize magnetics technologies in our Amorphous choke cores ✉ products.
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