BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS

BOARD LEVEL POWER SEMICONDUCTOR HEAT SINKS
260 SERIES
Cup Clips for TO-5 Case Style Semiconductors
Characteristics
TO-5
Thermal Resistance – Epoxy Insulated
Breakdown Voltage – Epoxy Type (VAC), 60 Hz
Recommended Operating Voltage, AC or DC
Clean Conditions: % Hipot Rating
Dusty Conditions: % Hipot Rating
Dirty Conditions: % Hipot Rating
Temperature Range — Continuous (C°)
14° C/W
500
50
30
10 to 20
-73/+149
TO-5
Model
Depth of
Tapped Base
260-4T5E
260-4TH5E
0.093 (2.36)
0.125 (3.18)
Thread
Size:
Mounting
Style:
4
6
T
S
P
=
=
=
=
=
#4-40 UNC
#6-32 UNC
tapped
stud
plain
Base Style: H = hex
Semiconductor
Case Style: 5 = TO-5
Insulation E = epoxy
TO-5 CASE STYLE CUP CLIPS — ORDERING GUIDE
Standard
P/N
260-4T5E
260-4TH5E
260-6SH5E
Insulation
Type
Outline Dimension
L x W x I.D.
in. (mm)
Weight
lbs. (grams)
Case
Style
Epoxy Insulated
Epoxy Insulated
Epoxy Insulated
0.370 (9.4) x 0.380 (9.7) dia. x 0.290 (7.4)
0.400 (10.2) x 0.370 (9.4) hex. x 0.290 (7.4)
0.557 (14.1) x 0.370 (9.4) hex. x 0.290 (7.4)
0.0024 (1.09)
0.0031 (1.41)
0.0037 (1.68)
TO-5
TO-5
TO-5
Materials and Finish: Cups – beryllium copper, black ebonol “C”; Bases – brass, black ebonol “C”
Base Mounting Configurations — TO-5
Plain Type — Epoxy bonded, or used with #4 pan head screws.
Tapped Base — #4-40 UNC screw (not supplied) fits tapped hole. Care should
be taken not to use too long a screw, which could short against the semiconductor case. For correct screw lengths:
Correct Screw Length (L) = Depth of Base + Panel Thickness + Washer Thickness
To determine the correct mounting screw lengths, add dimensions as follows:
Stud Mounting Base. #6-32 UNC. Nuts and washers not supplied. Stud hole
must be slightly countersunk to ensure flat mounting.
Correct Screw Length (L) = Depth of Base + Panel Thickness + Washer Thickness
Epoxy Insulated For TO-5
260-4T5E
2
info@ohmite.com
260-4TH5E
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
260-6SH5E