LA-B4

Series LA-B4 Technical METAL CASE, CASE-MOUNTED SEMICONDUCTORS Part Number Series LA-B4 Natural Conv. (°C/W): 10.3 Forced Air (°C/W): 3.2 Mounting Envelope: 1.63" x 1.29" x 1.00" DESCRIPTION OF CURVES A. B. C. D. E. N.C. Horiz. Device Only Mounted to G-10. N.C Horiz. & Vert. With Dissipator. 200 FPM w/Diss. 500 FPM w/Diss. 1000 FPM w/Diss. • • Thermal Resistance Case to Sink is 0.1-0.3 °C/W w/Joint Compound. Derate 0.7 °C/watt for unplated part in natural convection only. Ordering Information Unplated LA000B4U LAT03B4U LAIC3B4U LA407B4U LA394B4U CTS IERC PART NO. Comm'l. Black Anodize LA000B4CB LAT03B4CB LAIC3B4CB LA407B4CB LA394B4CB Mil. Black Anodize LA000B4B LAT03B4B LAIC3B4B LA407B4B LA394B4B Semiconductor Accommodated Undrilled TO-3 TO-3 IC TO-3 (4-pin) Universal Hole patt. ref. no. -2 4 5 8 Max. Weight (Grams) 12.9 12.9 12.9 12.9 12.9 HOLE PATTERNS 2. Hole Pattern no. 236 accommodates TO-3s. Available in LA4. Hole pattern no. 237 accommodates To-3 ICs. Available in B series heat dissipators only. LA-B series heat dissipators only. 5. Hole pattern no. 407 accommodates TO-3s (4-pin). Available in LA-B series heat dissipators only. 8. Hole pattern no. 394 (universal) accommodates TO-3s, TO66s, TO-126s, TO-127s, or T)-220s. Available in LA-B series heat dissipators only. CTS IERC, Heat Sinks and Thermal Management Solutions 413 North Moss Street, Burbank, California 91502 Tel: (818) 842-7277 Fax: (818) 848-8872 Rev. 08-29-03