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MUR180E Datasheet, PDF (5/8 Pages) ON Semiconductor – SWITCHMODE Power Rectifiers | |||
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MUR180E, MUR1100E
NOTE 3. â 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
1/8 1/4 1/2
52 65 72
67 80 87
50
Units
°C/W
°C/W
°C/W
MOUNTING METHOD 1
L
L
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ
MOUNTING METHOD 2
ÃÃÃÃÃÃÃÃL ÃÃÃÃÃÃÃÃÃÃLÃÃÃÃÃÃ
Vector Pin Mounting
MOUNTING METHOD 3
ÃÃ L = 3/8â³
ÃÃÃÃÃÃÃÃÃÃ Board Ground Plane
ÃÃÃÃ P.C. Board with
1â1/2â³ X 1â1/2â³ Copper Surface
http://onsemi.com
5
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