RI40 Resistor High Voltage Metal Glaze Resistor

Model

Resistor Body Dimensions
(max)

Lead Dimensions

D±1

L±1

d±0.05

l±1

RI81-0.5W

3.4

9.5

0.7

26

RI81---1W

4.2

12.5

0.7

26

RI81---2W

5.8

15.5

0.7

26

RI81---3W

6.9

16.5

0.7

26

RI81---5W

8.0

28.0

0.7

26

RI81---10W

10.0

51.0

0.7

26

Model

Rated Power
(W)

Resistance Range
(Ω)

Resistance Tolerance
±(%)

Temperature Coefficient of Resistance
±(×10^-6/℃)

Component Limit Voltage
(DC or AC RMS)
(V)

Insulation Voltage
(DC or AC Peak)
(V)

RI40

0.5

10Ω_~4G

2(G), 5(J)
10(K)

200

1K

700

1

10Ω_~4G

2.5K

1K

R140

2

10Ω_~4G

2(G),5(J).10(K)

200

3K

10K

3

10Ω_~10G

2(G),5(J).10(K)

200

4K

10K

5

10Ω_~10G

2(G),5(J).10(K)

200

7K

10K

10

10Ω_~10G

2(G),5(J).10(K)

200

10K

10K

Inspection Item

Performance Requirement

Inspection Method

Temperature Coefficient of Resistance

±250×10^-6/℃

-55℃_~+155℃

Endurance at Room Temperature

±(2%R+0.1Ω)

V_R(orUmax)1000h

Withstanding Voltage

No breakdown or flashover

V-block method, apply AC voltage with peak value of 1.42 times the insulation voltage value, t=1min

Solderability

Good solderability is indicated by free flow of solder and wetting of leads

Bath temperature: 235±5℃Immersion time: 2±5s

Overload

±(0.5%R+0.05Ω)

Apply2.5V_R(orUmax)Duration: 5S

Terminal Strength

±(0.5%R+0.05Ω)

Tension: 0.5W:10N; 1W-10W:22.2N.Bending: 2 times.Twisting: 180° 2 times

Resistance to Soldering Heat

±(0.5%R+0.05Ω)

Bath temperature: 350±10℃Immersion time: 3.5±5S

Rapid Change of Temperature

±(0.5%R+0.05Ω)

-55℃/+125℃ 5 cycles

Vibration

±(0.5%R+0.05Ω)

Frequency: 10Hz_~500HzAmplitude: 0.75mm or 98m/s²(whichever is smaller).Total duration: 6h

Climatic Sequence

±(2%R+0.1Ω)

Dry heatDamp heat, cyclic(first cycle)Cold.Low air pressureDamp heat, cyclic(remaining cycles)DC load

Damp Heat, Steady State

±(2%R+0.1Ω)

V=0.1√PR T=40±2℃Relative humidity(90_~95)%Time: 56 days

Endurance at Upper Category Temperature

±(2%R+0.1Ω)

V=0 T=155℃Time: 1000h

Discharge Test

±20%

0.5W:1mΩ_~68mΩ,1W-10W:100KΩ_~68mΩAccording toUL1676Section6.3
ApplyU=10KV, capacitance Cd=0.001μf, pulse period T=5 seconds, total 50 times