6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
TECHNICAL DATA SHEET
Gort Road Business Park, Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
PACKAGE DIMENSIONS
Ltr
CD
CH
HT
HR
HR1
LD
LL
L1
MHD
MHS
PS
PS1
S
Dimensions
Inches
Millimeters
Min Max Min
Max
.620
15.75
.250 .340
6.35
8.64
.050 .075
1.27
1.91
.350
8.89
.115 .145
2.92
3.68
.028 .034
0.71
0.86
.360 .500 9.14 12.70
.050
1.27
.142 .152
3.61
3.86
.958 .962 24.33 24.43
.190 .210
4.83
5.33
.093 .107
2.36
2.72
.570 .590 14.48 14.99
Notes
9
5
4, 8, 9
4, 8
4, 8
6, 9
3
3
3
NOTES:
1. Dimensions are in inches.
2. Millimeters are given for general information only.
3. These dimensions should be measured at points .050 to .055 inch (1.27 to 1.40 mm) below seating plane. When gauge is not
used, measurement will be made at seating plane.
4. Both terminals.
5. At both ends.
6. Two holes.
7. The collector shall be electrically connected to the case.
8. LD applies between L1 and LL. Lead diameter shall not exceed twice LD within L1.
9. In accordance with ASME Y14.5M, diameters are equivalent to φ symbology.
10. Lead 1 is the emitter, lead 2 is the base, collector is the case.
FIGURE 1. Physical dimensions, TO-66 (2N3740, 2N3741)
T4-LDS-0021 Rev. 2 (100698)
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