PR01 Datasheet, PDF (8/14 Pages) Vishay Siliconix – Power Metal Film Resistors

PR01/02/03
Vishay BCcomponents
10 ²
t
(s)
10
Power Metal Film Resistors
10 ²
t
(s)
10
1
1
10 ¹
0
20
40
60
80 100 120
Poverload (W)
PR02 Time to interruption as a function of overload
power for range: 5 R ≤ R_n < 68 R.
This graph is based on measured data under constant voltage
conditions; the data may deviate according to the applications.
10 ²
t
(s)
10
10 ¹
0
20
40
60
80 100 120
Poverload(W)
PR02 Time to interruption as a function of overload
power for range: 68 R ≤ R_n ≤ 560 R.
This graph is based on measured data under constant voltage
conditions; the data may deviate according to the applications.
Interruption Characteristics
200
∆T
(K)
160
120
1
80
10 ¹
0
50
100
150
200
250
P _overload (W)
PR03 Time to interruption as a function of overload power
for range: 0.68 R ≤ R_n ≤ 560 R.
This graph is based on measured data under constant voltage
conditions; the data may deviate according to the applications.
Interruption Characteristics
100
∆T
(K)
80
40
0
0
0.4
Ø0.6 mm Cu-leads.
0.8 _{P (W)} 1.2
PR01 Hot-spot temperature rise (∆T) as a
function of dissipated power.
200
∆T
(K)
160
60
120
15 mm
40
20 mm
80
25 mm
20
40
0
0
0.4
0.8 _{P (W)} 1.2
Ø0.6 mm Cu-leads.
Minimum distance from resistor body to PCB = 1 mm.
PR01 Temperature rise (∆T) at the lead end (soldering point) as a
function of dissipated power at various lead lengths after mounting.
Application Information
0
0
0.4
Ø0.6 mm FeCu-leads.
0.8 _{P (W)} 1.2
PR01 Hot-spot temperature rise (∆T) as a function
of dissipated power.
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8
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Document Number: 28729
Revision: 24-Feb-04