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| Categories | LED Load Resistor | 
|---|---|
| Brand Name: | ZENITHSUN | 
| Model Number: | RH | 
| Certification: | RoHs | 
| Place of Origin: | Shenzhen,China | 
| MOQ: | 10pcs | 
| Price: | USD18.00-USD30.00 | 
| Payment Terms: | T/T, L/C, D/A, D/P, Western Union,paypal | 
| Delivery Time: | 8-10 working days | 
| Packaging Details: | cartons /wooden case | 
| Rated Power: | 250W | 
| Resistance: | 1Ω - 100KΩ | 
| Tolerance: | ±1%,±5% | 
| Colour: | Golden | 
| Ends: | terminals | 
| Low inductive: | Specify by adding N | 
250W Aluminum Housed Wirewound LED Load Resistors,For Direct Heatsink Mounting
Structure :
1.The resistors core components are made of insulating and
high-temperature resistant materials as the resistors
framework,evenly wound with high-quality alloy wires.Metal aluminum
shell potted with high insulation non-combustible electronic
paste,so that the aluminum shell and the resistance core components
are closely combined into a solid entity,not affected by external
air,vibration and dust,high stability and thermal conductivity.
2.The aluminum shell is made of high-quality industrial 6063
aluminum,and the surface is high-temperature anodized to achieve
attractive appearance and great heat dissipation.
Features
1.We supply standard and custom designed aluminium housed resistors
for general-purpose use,power supplies,power generation and the
traction industry.
2.The RH is a range of extremely stable,high quality wire-wound
resistors capable of dissipating high power in a limited space with
relatively low surface temperature.
3.The power is rapidly dissipated as heat through the aluminium
housing to a specified heatsink.
4.The resistors are made from quality materials for optimum
reliability and stability.
5.We can test resistors to conform to relevant international or
customer specifications.
Specification
| Performance Charactertics | ||
| Test | Conditions of Test | Testing Results | 
| Resistance Tolerance | Testing Voltage ≤3V,Ambient Temperature 25℃ | B---D---F---G---J--K | 
| Temperature Coefficients | R0:Room Temperature(T0)Resistance Value R1:Room Temperature T0+100℃(T1)Resistance Value | ±100~±250PPM/℃ | 
| Rated Load | 40℃,rated voltage,1hour | △R≤±(3%+0.1Ω) | 
| Short Time Overload | 5 times rated power for 10s;10 times rated power for 5s;25 times rated power for 1s | △R≤±(2%+0.1Ω) | 
| Dielectric Withstand Voltage | 2 times Rated Power Voltage +1kv AC 60s (with grounding), leakage
current 2.5mA ; 2 times Rated Power Voltage +2kv AC 60s (with grounding), leakage current 2.5mA ; | △R≤±(0.1%+0.05Ω) | 
| Insulation Resistance | 1000V DC | 50M-1000MΩ1Min | 
| Terminal Tensile Strength | wire diameter ≤1.5 with 20N,wire diameter ≥1.5 with 40N,terminal
tension 20N copper end /stainless steel end,40N | No off | 
| Vibration resistance | 1.5mm,10-55-10Hz,each 2hours | No damage,No off | 
| Load Life | at rated voltage,90 min "On",30 min "Off" ,total 500hours | △R≤±(3%+0.1Ω) | 
| Thermal Shock | At 30℃,30min,-55℃,15min | △R≤±(0.5%+0.1Ω) | 
| Humidity Resistance | Temp.:40±2℃ ,Humidity: 90%-95%.240hours | △R≤±(3%+0.1Ω) | 
| Low Temperature Resistance Testing | store at -65℃±3℃ for 2H | △R≤±(1%+0.1Ω) | 
| High Temperature Resistance Testing | store at 70 ℃± 2 ℃ for 16h, connect the rated voltage DC circuit for 1s | △R≤±(1%+0.1Ω) | 
| Non-flammability | 10 times rated power, power on for 5s | without combustion | 
Applications
Widely used in Inverters,automation
equipment,acoustics,prescaler,aging power testing,auto
accessories,auto LED industry,Balancing
resistor,filter,crowbar,capacitor charge & discharge.
For
Loading,braking,pulse,charging,discharging,starting,buffering,discharging,ect.
Key Features/How to order
1.Rated Power :5W-300W;
2.Resitance Value:0.5 ohm -33K ohm;
3.Custom designs
4.Inductive or non-inductive
Product Image


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