289-AB

BOARD LEVEL HEAT SINKS BOARD LEVEL HEAT SINKS BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS 289 & 290 SERIES LOW-COST SINGLE OR DUAL PACKAGE HEAT SINKS TO-218; TO-202; TO-220 HIGH-PERFORMANCE, HIGH-POWER VERTICAL MOUNT HEAT SINKS TO-220 237 & 252 SERIES 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. Standard P/N Height Above PC Board in. (mm) Horizontal Mounting Maximum Footing in. (mm) 289-AB 289-AP 290-1AB 290-2AB 0.500 (12.7) 0.500 (12.7) 0.500 (12.7) 0.500 (12.7) 1.000 (25.4) x 0.710 (18.1) 1.000 (25.4) x 0.710 (18.1) 1.000 (25.4) x 1.180 (30.0) 1.000 (25.4) x 1.180 (30.0) Thermal Performance at Typical Load Natural Convection Forced Convection 50°C @ 2W 50°C @ 2W 44°C @ 2W 44°C @ 2W 9.0 C/W @ 400 LFM 9.0 C/W @ 400 LFM 7.0 C/W @ 400 LFM 7.0 C/W @ 400 LFM Weight lbs. (grams) 0.0055 (2.49) 0.0055 (2.49) 0.0082 (3.72) 0.0081 (3.67) Material: Aluminum, Black Anodized Standard P/N Thermal Performance at Typical Load Height Above Footprint PC Board Dimensions Mounting Solderable Mounting Natural Forced in. (mm) in. (mm) Configuration Tab Options Style Convection Convection 237-167AB2 237-167AB3 237-167ABE2-24 252-167AB2 252-167AB3 252-167ABE2-24 1.675 (42.5) 1.675 (42.5) 1.675 (42.5) 1.675 (42.5) 1.675 (42.5) 1.675 (42.5) 1.000 (25-4) x 1.000 (25.4) 1.000 (25.4) x 1.000 (25.4) 1.000 (25.4) x 1.000 (25.4) 1.000 (25.4) x 1.000 (25.4) 1.000 (25.4) x 1.000 (25.4) 1.000 (25.4) x 1.000 (25.4) Vertical Vertical Vertical Vertical Vertical Vertical 2, Twisted 3, Twisted 2, Solderable 2, Twisted 3, Twisted 2, Solderable Clip/Mtg Clip/Mtg Clip/Mtg Clip/Mtg Clip/Mtg Clip/Mtg Slot 46°C @ 4W 4.5°C/W @ 200 LFM Slot 46°C @ 4W 4.5°C/W @ 200 LFM Slot 46°C @ 4W 4.5°C/W @ 200 LFM Slot 40°C @ 4W 4.5°C/W @ 200 LFM Slot 40°C @ 4W 4.5°C/W @ 200 LFM Slot 40°C @ 4W 4.5°C/W @ 200 LFM Order SpeedClips™ 285SC or 330SC separately for rapid component installation, lowering manufacturing costs. 289 SERIES MECHANICAL DIMENSIONS NATURAL AND FORCED CONVECTION CHARACTERISTICS 290 SERIES Material: Aluminum, Black Anodized MECHANICAL DIMENSIONS 227-167 237-167AB2 252-167AB2 252-167 NATURAL AND FORCED CONVECTION CHARACTERISTICS 237-167AB2-24 252-167AB2-24 237 AND 252 SERIES 237-167AB3 252-167AB3 237 AND 252 SERIES Dimensions: in. (mm) 237-167AB3 252-167AB3 Dimensions: in. (mm) HIGH-PERFORMANCE SLIM PROFILE HEAT SINKS WITH INTEGRAL CLIPS Multiwatt Standard P/N 250-122AB 250-122ABE-09 250-122ABE-25 250 SERIES Thermal Performance at Typical Load Height Above Footprint PC Board Dimensions Mounting Solderable Mounting Natural Forced in. (mm) in. (mm) Configuration Tab Options Style Convection Convection 1.220 (31.0) 1.220 (31.0) 1.380 (35.1) 1.000 (25.4) x .500 (12.7) 1.000 (25.4) x .500 (12.7) 1.000 (25.4) x .500 (12.7) Vert./Horiz. Vertical Vertical No Tab 09 25 Clip Clip Clip 50°C @ 4W 50°C @ 4W 50°C @ 4W 3.7°C/W @ 400 LFM 3.7°C/W @ 400 LFM 3.7°C/W @ 400 LFM Material: Aluminum, Black Anodized MECHANICAL DIMENSIONS 250 SERIES 250-122AB-09 250-122AB-25 NATURAL AND FORCED CONVECTION CHARACTERISTICS 291 SERIES LABOR-SAVING CLIP-ON HEAT SINKS TO-220 Designed for mounting horizontally or vertically on a circuit board, 291 Series heat sinks employ a unique clip for attachment of TO-220 case styles. One type is available with a locking clip and one with a 0.140 in. (3.6) diameter mounting hole only. Vertical Height Above Standard PC Board P/N in. (mm) 291-C236AB 291-H36AB 0.860 (21.9) 0.860 (21.9) Mounting Footprint Dimensions Mounting in. (mm) Style 1.100 (27.0) x 0.360 (9.1) 1.100 (27.0) x 0.360 (9.1) TO-220 (Clip) TO-220 (Mtg. Hole) Thermal Performance at Typical Load Natural Forced Convection Convection 80°C @ 2W 68°C @ 2W 24°C/W @ 600 LFM 16°C/W @ 600 LFM Weight lbs. (grams) 0.0026 (1.18) 0.0026 (1.18)) Material: Aluminum, Black Anodized MECHANICAL DIMENSIONS 291 SERIES NATURAL AND FORCED CONVECTION CHARACTERISTICS 250-122AB Dimensions: in. (mm) Dimensions: in. (mm) 64 Contact us: (603) 635-2800 291-H 291-C2 65