Production

name

RI40 metal Glazed resistor

Power rating

1/4W-100W

Resistance value

10Ω-100MΩ

Resistance tolerance

±1%,  %5%

Features

1.Wide resistance range;Anti-humidity;High reliability;Large ration power;

2.Withstand high temperature;Withstand impulse surge;Withstand high voltage.

3.Approved to UL, CQC, VDE;Small TCR.

Common

specification

1/4W, 1/2W, 2W, 3W, 5W, 10-50W.

Performance

Main function

Inspection Method

Function Requirement

Temperature

coefficient

Room temperature  100°C, and 

keep on 30-40 min

TCR≤±100/200PPM/°C

Voltage proof

Wrapping foil method, applied 

voltage see above table, 1min 

±5s

No breakdown or flashover

Short-time

overload

2.5times  Rated voltage

(≤Max.overload voltage), 5s

ΔR≤±(1% 0.05Ω)

Solderability

260±5%, 2±0.5s 

Over 95%of area wire covered

With solder  

Soldering 

heat

260±5°C, 10±1S

ΔR≤±(1% R  0.05Ω)

Rapid change 

temperature

-55±3°C, 30min;155±

3°C, 30min 5cycles

ΔR≤±(1% 0.05Ω)

Vibration

10Hz~500Hz, 0.75 mm or98m/ 

s2, 6h

ΔR≤±(1% 0.05Ω)

Insulation 

resistance

V-block method 500±50V, 1min

Insulation resistance≥1GΩ

Intermittent 

overload

2.5 times rated voltage , on 

1S, off 25S, 1000 times

ΔR≤±(5%R 0.1Ω)

Endurance

70±2°C, 1000h, Rated direct 

voltage

ΔR≤±(5%R 0.1Ω)

Unexpected 

overload

16, 25rated power voltage, keep 

on 5±0.5 min

Net-shaped tube dose not 

catch fire

Steady 

damp-heat

40±2°C, 90~95% RH, 56 days

ΔR≤±(5%R 0.1Ω)

Cooperation partner

SAMSUNG, LG,  TAIDA, CHANGHONG, TCL, KONKA , ECT

NOTE

1. For customer specifications,please contact us to discuss the details.

2. Different power rating owning multi weight ,dimension and packing .

3. More details, please contact us.