Datasheet

BCR420UW6 / BCR421UW6
Document number: DS37667 Rev. 3 - 2
4 of 13
www.diodes.com
November 2015
© Diodes Incorporated
BCR420UW6 / BCR421UW6
Typical Thermal Characteristics BCR420/1U (@T
A
= +25°C, unless otherwise specified.)
100 1000
0
100
200
300
400
500
600
700
800
Rth(JA) VS Cu Area
Copper Area (mm
2
)
100µ 1m 10m 100m 1 10 100 1k
0
25
50
75
100
125
T
amb
=25°C
50mm * 50mm
1oz Cu
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
Thermal Resistance (°C/W)
Pulse Width (s)
100µ 1m 10m 100m 1 10 100 1k
1
10
T
amb
=25°C
50mm * 50mm
1oz Cu
Single Pulse
Pulse Power Dissipation
Pulse Width (s)
Maximum Power (W)
100µ 1m 10m 100m 1 10 100 1k
0
25
50
75
100
125
150
T
amb
=25°C
25mm * 25mm
1oz Cu
Transient Thermal Impedance
D=0.5
D=0.2
D=0.1
Single Pulse
D=0.05
Thermal Resistance (°C/W)
Pulse Width (s)
100µ 1m 10m 100m 1 10 100 1k
1
10
Single Pulse
T
amb
=25°C
25mm * 25mm
1oz Cu
Pulse Power Dissipation
Pulse Width (s)
Maximum Power (W)
0 50 100 150
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Rth(JA) (°C/W)
25mm * 25mm
1oz Cu
50mm * 50mm
1oz Cu
Derating Curve
Temperature (°C)
Max Power Dissipation (W)