The circuit protection is mainly to protect the components in the electronic circuit from being damaged under the conditions of overvoltage, overcurrent, surge, electromagnetic interference, etc. The circuit protection device provides protection for the circuit and chip of the product, ensuring the presence of the circuit. In the case of an abnormality, the precision chips and components of the protected circuit are not damaged. Overvoltage, overcurrent, surge, electromagnetic interference, electrostatic discharge, etc. have always been the focus of circuit protection. Therefore, mainstream circuit protection devices in the market are also based on lightning/overvoltage/overcurrent/antistatic, etc. Protection devices include gas discharge tubes, solid discharge tubes, transient suppression diodes, varistors, self-recovery fuses, and ESD electrostatic diodes. How can engineers choose the best circuit protection device when selecting a model?
1. You need to know what damage you want to prevent. Many times, the design engineer will ask Shuokai Electronics about the surge protection device, but they don't know what to avoid, so you have to do it. The first thing is to determine whether to prevent direct lightning strikes, secondary shocks (as described in the IEC61000-4-5 standard), or electrostatic discharges (as described in the IEC61000-4-2 standard). Once you have made a decision, you can choose the right circuit protection device.
2. Decide what results you want when a fault condition occurs. For example, you want to be able to withstand fault conditions during operation and remain operational during and after a fault condition; to withstand fault conditions only when turned off, then to operate when the next device is powered up; or to provide protection for the device Safely fail and do not need to operate after the end of the failure? The circuit protection device you choose is the answer to these questions.
3. For what is the "normal" and "abnormal" operation, we need to make reasonable assumptions, for example, you can not choose an overcurrent protection device that operates under 6A, and expect your design to work normally at 5.99999A. This simply does not have enough margin. If your design consumes 6A during normal operation, you must use an overcurrent protection device PTC self-recovery fuse that operates at 8A or higher. Not only that, you must understand the maximum operating voltage, maximum ambient temperature, and fault voltage, fault current, and fault duration to make the right choice.
4. It must be clear that any protection is impossible to do 100% if you design to protect a particular event, but there may always be some more serious events. For example, the hazard described in the Telecommunications Lightning Code is much less severe than direct lightning strikes. It is possible to protect the product from damage caused by direct lightning strikes, but it is very expensive.
5. Plan the circuit protection scheme at the beginning of the design. Although the circuit protection device is much smaller than in the past, after the PCB design is completed, it is impossible to add the circuit protection device without sufficient space.
With the development of science and technology, electric/electronic products are increasingly diversified and complicated, and the physical dimensions of circuit structures and electronic products are becoming smaller and smaller, and circuit protection design becomes more important in the early stage of the design cycle. The choice of circuit protection and electronic protection devices may seem to be of low priority, but should be designed early to eliminate design issues and ensure the performance and reliability of your product.
YAMAHA Feeder, original and new or used feeder, in stock.
Material: Stainless steel
Feeder can be divided into tape feeder, tube feeder, tray feeder or stick feeder.
Feeder can be divided into original feeder and replacement feeder.
All the feeders shall be maintained during the use time
YAMAHA SS 8mm ELECTRIC feeder KHJ-MC100-000,
YAMAHA SS 12mm ELECTRIC feeder KHJ-MC200-000,
YAMAHA SS 16mm ELECTRIC feeder KHJ-MC300-000,
YAMAHA SS 24mm ELECTRIC feeder KHJ-MC400-000,
YAMAHA SS 32mm ELECTRIC feeder KHJ-MC500-000,
YAMAHA SS 44mm ELECTRIC feeder KHJ-MC600-000,
YAMAHA SS 56mm ELECTRIC feeder KHJ-MC700-000,
YAMAHA SS 72mm ELECTRIC feeder KHJ-MC800-000,
YAMAHA SS 88mm ELECTRIC feeder KHJ-MC900-000,
YAMAHA ZS 8mm ELECTRIC feeder KLJ-MC100-000
YAMAHA ZS 12mm ELECTRIC feeder KLJ-MC200-000
YAMAHA ZS 16mm ELECTRIC feeder KLJ-MC300-000
YAMAHA ZS 24mm ELECTRIC feeder KLJ-MC400-000
YAMAHA ZS 32mm ELECTRIC feeder KLJ-MC500-000
YAMAHA ZS 44mm ELECTRIC feeder KLJ-MC600-000
YAMAHA ZS 56mm ELECTRIC feeder KLJ-MC700-000
YAMAHA ZS 72mm ELECTRIC feeder KLJ-MC800-000
YAMAHA ZS 88mm ELECTRIC feeder KLJ-MC900-000
YAMAHA FT feeder 8×2mm KJW-M1100-023,
YAMAHA FT feeder 8×4mm KJW-M1200-023,
YAMAHA FS2 feeder 8×2mm KJK-M1300-011,
YAMAHA FS2 feeder 8×4mm KJK-M1500-011,
YAMAHA CL feeder 0201mm KW1-M1500-030,
YAMAHA CL feeder 8×2mm KW1-M1300-000,
YAMAHA CL feeder 8×4mm KW1-M1100-000,
YAMAHA CL feeder 12mm KW1-M2200-301,
YAMAHA CL feeder 16mm KW1-M3200-100,
YAMAHA CL feeder 24mm KW1-M4500-015,
YAMAHA CL feeder 32mm KW1-M5500-000,
YAMAHA CL feeder 44mm KW1-M6500-000,
YAMAHA CL feeder 56mm KW1-M7500-000,
YAMAHA CL feeder 72mm KW1-M8500-000,
YAMAHA CL feeder 88mm KW1-M9500-000,
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