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239-75AB-03 Datasheet(PDF) 10 Page - List of Unclassifed Manufacturers |
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239-75AB-03 Datasheet(HTML) 10 Page - List of Unclassifed Manufacturers |
10 / 20 page Board Level Heat Sinks All other products, please contact factory for price, delivery, and minimums. Normally stocked 39 BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS 270/272/280 SERIES Small Footprint Low-Cost Heat Sinks TO-220, TO-202 Height Above Horizontal Mounting Thermal Performance at Typical Load Standard PC Board Maximum Footing Solderable Natural Forced Weight P/N in. (mm) in. (mm) Tab Options Convection Convection lbs. (grams) 270-AB 0.375 (9.4) 1.750 (44.5) x 0.700 (17.8) — 70° C @ 4W 6.0° C/W @ 400 LFM 0.0052 (2.36) 272-AB 0.375 (9.4) 1.750 (44.5) x 1.450 (36.8) 01,02 42° C @ 4W 3.6° C/W @ 400 LFM 0.0105 (5.72) 280-AB 0.375 (9.4) 1.750 (44.5) x 0.700 (17.8) — 70° C @ 4W 6.0° C/W @ 400 LFM 0.0048 (2.18) Material: Aluminum, Black Anodized These exceptionally low-cost heat sinks can be mounted horizontally under a TO-220 or TO-202 case style with a maximum height of only 0.375 in. (9.4). For added performance, a 271 Series heat sink can also be used for double-sided heat dissi- pation. The 270-AB and 280-AB accept one power semiconductor; the 272-AB is designed for two power semiconductors. Specify solderable tab options for the 272 Series by the addition of suffix “O1” or “02” to the standard part number (i.e. 272-AB01 or 272-AB02). 289 AND 290 SERIES Low-Cost Single or Dual Package Heat Sinks TO-218, TO-202, TO-220 Height Above Horizontal Mounting Thermal Performance at Typical Load Standard PC Board Maximum Footing Natural Forced Weight P/N in. (mm) in. (mm) Convection Convection lbs. (grams) 289-AB 0.500 (12.7) 1.000 (25.4) x O.710 (18.1) 50° C @ 2W 44° C/W @ 400 LFM 0.0055 (2.49) 289-AP 0.500 (12.7) 1.000 (25.4) x 0.710 (18.1) 50° C @ 2W 44° C/W @ 400 LFM 0.0055 (2.49) 290-1AB 0.500 (12.7) 1.000 (25.4) x 1.180 (30.0) 44° C @ 2W 35° C/W @ 400 LFM 0.0082 (3.72) 290-2AB 0.500 (12.7) 1.000 (25.4) x 1.180 (30.0) 44° C @ 2W 35° C/W @ 400 LFM 0.0081 (3.67) Material: Aluminum, Black Anodized Low in cost and compact in overall dimensions, one 289 Series heat sink can accommodate one semiconductor; the 289 Series is available with a black anodized finish (289-AB) or with no finish (289-AP). Two semiconductors can be mounted to the 290-2AB style. MECHANICAL DIMENSIONS NATURAL AND FORCED CONVECTION CHARACTERISTICS 270 SERIES 280 SERIES MECHANICAL DIMENSIONS NATURAL AND FORCED CONVECTION CHARACTERISTICS 289 SERIES 290 SERIES Dimensions: in. (mm) Dimensions: in. (mm) 272 SERIES 272AB01 272AB02 |
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