MUR405 View Datasheet(PDF) - ON Semiconductor
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MUR405 Datasheet PDF : 7 Pages
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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 RqJA IN STILL AIR
Mounting
Method
1
2
RqJA
3
Lead Length, L (IN)
1/8 1/4 1/2 3/4
50 51 53 55
58 59 61 63
28
Units
°C/W
°C/W
°C/W
MOUNTING METHOD 1
P.C. Board Where Available Copper
Surface area is small.
L
L
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ
MOUNTING METHOD 2
Vector Push−In Terminals T−28
ÉÉÉÉÉÉÉÉL ÉÉÉÉÉÉÉÉÉÉLÉÉÉÉÉÉ
MOUNTING METHOD 3
P.C. Board with
1−1/2″ x 1−1/2″ Copper Surface
ÉÉ L = 1/2″
ÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Board Ground Plane
http://onsemi.com
6
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