FR4 Thermal PCB Characterisation

Pad Dimensions (x,y mm)

50, 40

4.5

45, 35

4

40, 30

3.5

35, 25

3

20, 10

2

Notes: Characterisation carried out using 35

µm PCB copper pad weights, with the temperature of 90°C used as a maximum

reference on the PCB.

Ordering Information

SMHP 20

500

F

Model

Resistance Code

Tolerance

SMHP 20

20W TO-263 HIGH POWER RESISTORS

-50

0

50

100

150

200

Flange Temperature (

°C)

100

80

60

40

20

0

+155

°C

+25

°C

% Power

0

10

20

30

Applied Power (W)

120

100

80

60

40

20

0

.

Temperature rise (

°C)

Reel Dimension:

Reel Orientation:

Outer Diameter: 300 mm

Units to be orientated with Pins facing Sprocket Holes

Inner Diameter: 100 mm

Width: 23.9 mm min. 27.4 mm max

Quantity: 500pcs/reel

5.0

0.4

16.0

4.0

2.0

10.8

Derating Curve

Temperature Rise

Tape Dimensions and Orientation

2

0.1

Ω : 0R100

J = 5% Tol

50

Ω : 500 First two digits significant, last digit: number of trailing zeros

F = 1% Tol

x mm

y mm

Temperature

measurement