Datasheet MUR405, MUR410, MUR415, MUR420, MUR440, MUR460 (ON Semiconductor) - 7

MUR405, MUR410, MUR415, MUR420, MUR440, MUR460 NOTE 2 — AMBIENT MOUNTING DATA
Data shown for thermal resistance junction−to−ambient (RqJA) for the mountings shown is to be used as typical guideline values for preliminary engineering or in case the tie point temperature cannot be measured.
TYPICAL VALUES FOR R
q
JA IN STILL AIR Mounting Lead Length, L (IN) Method 1/8 1/4 1/2 3/4 Units
1 50 51 53 55 °C/W 2 R 58 qJA 59 61 63 °C/W 3 28 °C/W
MOUNTING METHOD 1 P.C. Board Where Available Copper Surface area is small. L L
ÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉ
MOUNTING METHOD 2 Vector Push−In Terminals T−28 L L
ÉÉÉÉÉÉÉÉÉÉÉÉ
MOUNTING METHOD 3 P.C. Board with 1−1/2
″
x 1−1/2
″
Copper Surface
ÉÉ
L = 1/2
″ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ
Board Ground Plane
ÉÉ ÉÉ
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