Overview
Product Details
Chief Characteristic:.
1. Good overload and high voltage performance
2. High resistance and low inductance
3. Can be widely used in high voltage load, voltage divider circuit
70℃Rated Power (W) | ResistanceRange (Ohm) | ResistanceTolerance (%) | Limiting Voltage (KV) | TemperatureCoefficient ×10/K(PPM) | Contour Dimension(mm) | ||||||
A | B | H | D/Φ | ||||||||
0.5 | 10-1G | ±1-±5 | 3 | ≤ ±400 (25 -125)℃ | 20 | 10.5 | 1.5 | 0.9 | |||
1 | 10-1G | 5 | 20 | 15 | 1.5 | 0.6 | |||||
2 | 10-2G | 8 | 45 | 6 | 1.5 | 0.6 | |||||
3 | 10-2G | 10 | 45 | 12 | 1.5 | 0.6 | |||||
4 | 10-10G | 12 | 52 | 22 | 1.5 | 0.6 | |||||
5 | 10-20G | 20 | 92 | 22 | 1.5 | 0.6 | |||||
12 | 10-20G | 30 | 120 | 22 | 1.5 | 0.6 | |||||
Contour Drawing:
Note:
Go beyond the afore cited scope, we can provide the products according to the user's requirements.
Power Derating Curve
Application:
1. Medical equipment, x-ray
2. Electrostatic, dust extractor
3. Metering equipment
4. Precision devices
5. Enegy regen , dynamic braking
6. Inverter power supply shunt
7. Laboratory HV equipment
8. Smart grid sending
Used as load resistor
Technology Standard:
1.Gb/T57259-20032.Q/QH1641-2014
Xianyang Qinhua Special Electronic Components Co., Ltd
Qinhua factory founded in 2000.mainly produce:High voltage high power metal glaze film resistor; High frequency large current oxide film resistor; Painted or glazed & porcelain shell or aluminum shell series wire wound resistor; High voltage high power wind cooled & oil cooled resistors cabinet.The products are mainly used in electronic test equipment, high voltage measure, high voltage switch, high voltage electric transport, large power electron of military scientific research institute, national defense technology academy, university teaching and research section and the electronic power& energy department. They are also used in electronic specialized precision instrument, new type medical equipment manufacture, high voltage electrostatic precipitator and more. Among them, the special resistors of the high voltage inverters and the high voltage soft star have well properties of enduring high voltage, can distribute voltage equally, and can maintain resistance steady in high voltage state, reached the advanced world level.In December 2010.Our factory have got GB/T19001-2008 and ISO9001:2008 Quality management Systems Certificate.We believe that the quality is the soul of the factory. We sincerely look forward to cooperating with you.
Service:
1.Pre-sale service:Professional technical persons will choose suitable resistor for you due to using environment about the resistor.2.The sale of services:If you need,we can provide the sample for you to go on testing,and also provide technical help and supports for you.3.After-sales service:Accept any repair of the product (including damage caused by not our personnel).Help to improve technology for customer.And also provide long-term technical help and support for you!
1. How to choose the resistor ?1 We would like to commend the wirewound resistor for you when it will be used in low voltage(220v-3.5kv).2 It is better to use glass glaze resistor in high voltage(above 5.0kv).3 For high-frequency circuits,to recommend oxide film resistor or glass glaze resistors.The resistance of the structure body,determines that it has a low inductance.There are requirements on the circuit inductance,film resistor is your best choice.2. Resistor structure model and parameters characteristics ?2.1 Glass Glaze Resistor:It is extremely stable chemical properties resistor paste coated on 95%AL2O3 ceramic tube,high temperature resistance film formed after firing.In order to guarantee stable electrical performance parameters,the surface to be coated with a protective lacquer.Its characteristics:Resistance Range:Ω--G ΩPower Range:0.5--500WFrequency Response:less oxide film resistor ideal,but much better than wire wound resistors.(Called non-inductive resistor)2.2 Oxide Film Resistor:It is the liquid chemical reagent injected into the high pressure borrow about 800°C 95%AL2O3 ceramic tube,in the high temperature generated in the resistive film.Surface without protective lacquer coating.Its characteristics:Resistance Range:1 Ω --5K ΩPower Range:10W--500WFrequency Response:≥100MHz Truly non-inductive resistor2.3 Wire Wound Resistor:Alloy resistance wire is wound on an insulating substrate for the endurance temperature,the surface protective layer coating made of resistive components.Because the different of the coated and package,it can divided into paint type,glaze type,metal shell type,porcelain shell type.Its characteristics:Resistance Range:0.15 Ω --20K ΩPower Range:1W--500WFrequency Response:inability to completely eliminate inductive factors,the frequency characteristics of the worst of the three resistors3.High voltage resistors abide by electronics basic formula yet Using in the equipment circuit ?Ohm LawV=IRHere:I-Flowed Resistor Current,Dimension:A.V-Voltage Exerted Resistor,Dimension:V.R-Resistor's Resistance,Dimension: Ω
4. How to choose the resistor power?Power is larger (≥ 20W) of the load resistor at full power for a long (more than 2 hours) work surface will produce 300°C temperature of around. And safe use of the resistor surface temperature is preferably maintained at less than 200°C. Therefore, when the choice of the resistor, reduced power in using should be considered.5. Withstanding Voltage?China National Standard GB/T5729-2003/IEC60115-1:2001 in on the withstand voltage so provides:"In addition to surface mount resistors for all except resistors,test voltage shall be applied to the following two electrodes between:two resistors connected together as a lead-out electrode,V-block,a metal foil or mounting member as the other electrode,test voltage is AC(40Hz-60Hz),the peak of about 100v/s rate of rose from zero detailed specification insulation voltage worth 1.42 times the specified voltage is reached after keeping 60s(±5s).Obviously,this is the measurement resistor resistance of the insulation coating layer or carrier(such as porcelain) the withstand voltage performance.Therefore,the Withstanding Voltage are not necessarily linked with the resistor's other technical parameters,like power,resistance,etc.6. Using note?The resistor is a heating component. During use, please pay attention to whether the surface temperature rise have effect on other elements. Of course, when choosing resistor, we will provide all technology parameters of the product for you to ensure your using. Please use according to technology parameter!7. Why ask the working voltage, resistance value, resistor tolerance, temperature coefficient, contour dimension, main use of the resistor for the buyers every time?Our company offer products in multiple dimensions, types, uses. According to that data you providing, we will choose optimum resistor for you. The optimum resistor will bring to the good influence for your produce, reducing power consumption and extending use life.