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MUR420RLG Datasheet, PDF (6/7 Pages) Kersemi Electronic Co., Ltd. – Power Rectifiers | |||
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MUR405, MUR410, MUR415, MUR420, MUR440, MUR460
NOTE 2 â AMBIENT MOUNTING DATA
Data shown for thermal resistance junctionâtoâambient
(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
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ
MOUNTING METHOD 2
Vector PushâIn Terminals Tâ28
ÃÃÃÃÃÃÃÃL ÃÃÃÃÃÃÃÃÃÃLÃÃÃÃÃÃ
MOUNTING METHOD 3
P.C. Board with
1â1/2â³ x 1â1/2â³ Copper Surface
ÃÃ L = 1/2â³
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Board Ground Plane
http://kersemi.com
6
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