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
CTS IERC PART NO.
Unplated
Comm'l. Black
Anodize
Mil. Black
Anodize
Semiconductor
Accommodated
Hole patt. ref.
no.
Max. Weight
(Grams)
LA000B4U
LAT03B4U
LAIC3B4U
LA407B4U
LA394B4U
LA000B4CB
LAT03B4CB
LAIC3B4CB
LA407B4CB
LA394B4CB
LA000B4B
LAT03B4B
LAIC3B4B
LA407B4B
LA394B4B
Undrilled
TO-3
TO-3 IC
TO-3 (4-pin)
Universal
--
2
4
5
8
12.9
12.9
12.9
12.9
12.9
HOLE PATTERNS
2. Hole Pattern no. 236 accommodates TO-3s. Available in LA-
B series heat dissipators only.
4. Hole pattern no. 237 accommodates To-3 ICs. Available in
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, TO-
66s, 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
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