Customized 300W pure copper wire toroidal transformer low frequency
transformer for audio amplifiers
1.Product Performance
The iron core of the toroidal transformer is made of continuous
oriented silicon steel strips. After annealing, a highly consistent
magnetic flux guidance will be formed. The pass density is higher
because the toroidal transformer can achieve a high electrical
efficiency of 95%.
2.Product Feature
a. The high-efficiency iron core has no air gap, and the stacking
factor can be as high as 95%.
b. Less vibration noise. The iron core has no air gap, which can
reduce the noise of the induced vibration of the iron core. The
windings evenly and tightly wrap the annular iron core, which
effectively reduces the "hum" sound caused by magnetostriction.
3.Application
a. Audio equipment
Among the toroidal transformer products of this factory, there are
first and foremost products that are well-known in audio equipment.
Such as high-performance products that can be used as power
transformers in Class 3 high-power hi-fi amplifiers and power
transformers for medium and small power audio equipment.
High-quality toroidal transformers can be used for power ranges
from 6VA to 1000VA.
b. Medical equipment
Toroidal transformers specially designed and manufactured for
medical equipment. In addition to high efficiency, high reliability
and high safety requirements. It also specially strengthens the
electrical strength and improves the anti-humid heat performance. A
thermal fuse is also required to be added inside the transformer to
ensure reliability.
c. Application in other fields
Toroidal transformers can also be used in power inverters of
various sizes, such as solar and wind power generation systems.
This high-efficiency toroidal transformer with a low-loss iron core
can greatly improve the overall efficiency of the inverter power
supply.
4.Shape Parameters
| Full Loading Power | Product volume | Mounting plate | Hole distance | Pore size | Weight |
| 20W(MAX) | 70*25*35mm | 70*70mm | 60*60mm | 5*8mm | 0.53Kg |
| 40W(MAX) | 90*41*45mm | 90*90mm | 80*80mm | 5*8mm | 0.53Kg |
| 50W(MAX) | 95*41*45mm | 90*90mm | 80*80mm | 5*8mm | 1.1Kg |
| 70W(MAX) | 100*40*45mm | 90*90mm | 80*80mm | 5*8mm | 1.3Kg |
| 90W(MAX) | 103*40*43mm | 100*100mm | 90*90mm | 5*8mm | 1.47Kg |
| 120W(MAX) | 100*41*45mm | 90*90mm | 80*80mm | 5*8mm | 1.50Kg |
| 150W(MAX) | 98*38*51mm | 90*90mm | 80*80mm | 5*8mm | 2.05Kg |
| 200W(MAX) | 110*45*53mm | 100*100mm | 90*90mm | 5*8mm | 2.23Kg |
| 240W(MAX) | 113*47*54mm | 120*120mm | 110*110mm | 5*8mm | 2.5Kg |
| 300W(MAX) | 122*45*56mm | 120*120mm | 110*110mm | 5*8mm | 2.9Kg |
| 400W(MAX) | 134*46*66mm | 120*120mm | 110*110mm | 5*8mm | 4.1Kg |
| 500W(MAX) | 133*51*63mm | 140*140mm | 130*130mm | 5*8mm | 4.6Kg |
| 1000W(MAX) | 165*52*79mm | 160*160mm | 150*150mm | 5*8mm | 8.2Kg |
| 1200W(MAX) | 180*54*78mm | 180*180mm | 170*170mm | 5*8mm | 10.6Kg |
| 1500W(MAX) | 180*54*78mm | 180*180mm | 170*170mm | 5*8mm | 11.5Kg |
5. Electrical Characteristics
| Full Loading Power | Input Voltage | Frequency | No Load Voltage | Full Loading Current | No Load Iron Loss | Hi-Pot Test | Insulation Resistance |
| 20W(MAX) | AC220V±10% | 50Hz/60Hz | AC12.0V±2% | 1.66A(MAX) | ＜0.9W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 40W(MAX) | AC220V±10% | 50Hz/60Hz | AC12.5V±2% | 3.3A(MAX) | ＜2.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 50W(MAX) | AC230V±10% | 50Hz/60Hz | AC5-0-5V±2% | 5.0A(MAX) | ＜2.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 70W(MAX) | AC230V±10% | 50Hz/60Hz | AC14.5V±2% | 5.0A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 90W(MAX) | AC220V±10% | 50Hz/60Hz | AC28+9+16V±2% | 2.1+1.7+1A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 120W(MAX) | AC220V±10% | 50Hz/60Hz | AC0-20-80-100V+1V±2% | 6A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 150W(MAX) | AC220V±10% | 50Hz/60Hz | AC22V±2% | 6.8A(MAX) | ＜3.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 200W(MAX) | AC220V±10% | 50Hz/60Hz | AC12V*2±2% | 8.4A(MAX) | ＜4.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 240W(MAX) | AC220V±10% | 50Hz/60Hz | AC24±2% | 10A(MAX) | ＜4.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 300W(MAX) | AC220V±10% | 50Hz/60Hz | AC24.5±2% | 12.5A(MAX) | ＜5.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 400W(MAX) | AC220V±10% | 50Hz/60Hz | AC70.5±2% | 5.7A(MAX) | ＜6.0W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 500W(MAX) | AC220V±10% | 50Hz/60Hz | AC36±2% | 13.9A(MAX) | ＜4.5W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 1000W(MAX) | AC240V±10% | 50Hz/60Hz | AC36.5±2% | 27.5A(MAX) | ＜10W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 1200W(MAX) | AC220V±10% | 50Hz/60Hz | AC45+36V±2% | 13.3+16.6A(MAX) | ＜12W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
| 1500W(MAX) | AC415V±10% | 50Hz/60Hz | AC48V±2% | 31.2A(MAX) | ＜20W | Pri-Sec:DC2500V | Pri-Sec:≥500MΩ |
FAQ
1. who are we?
We are based in Guangdong, China, start from 2011,sell to North
America(40.00%),Southeast Asia(30.00%),South America(10.00%),
Western Europe(10.00%),Mid East(10.00%). There are total about
51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Toroidal Transformers, Audio Transformers, High/Low Frequency
Transformers, Power Inductors, Wireless Charging Coils
4. why should you buy from us not from other suppliers?
TEAM:Independent engineer team ,to check drawings, provide
quotation, write machining process,guide production.
OEM:Advanced production technology,accept oem customization.
DELIVERY: Independent PMC department to make production plan and
manage delivery.
