SUR180E

www.onsemi.com

5

Lead Length, L

Mounting

Method

1/8

1/4

1/2

Units

1

2

3

52

67

65

72

80

87

50

°C/W

°C/W

°C/W

Data shown for thermal resistance, junction−to−ambient

guideline values for preliminary engineering or in case the

tie point temperature cannot be measured.

NOTE 3 − AMBIENT MOUNTING DATA

MOUNTING METHOD 1

MOUNTING METHOD 2

MOUNTING METHOD 3

L

L

L

L

Vector Pin Mounting

L = 3/8

Board Ground Plane

P.C. Board with

1−1/2 X 1−1/2 Copper Surface

″

″

″