TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
T4-LDS-0173 Rev. 1 (101069) Page 4 of 5
PACKAGE DIMENSIONS
NOTES:
1 Dimensions are in inches.
2 Millimeters are given for general information only.
3 Symbol TL is measured from HD maximum.
4 Details of outline in this zone are optional.
5 Leads at gauge plane .054 inch (1.37 mm) +.001 inch (0.03 mm) -.000 inch (0.00 mm) below seating plane shall be within
.007 inch (0.18 mm) radius of TP relative to tab. Device may be measured by direct methods or by gauge.
6 Symbol LU applies between L1 and L2. Dimension LD applies between L2 and LL minimum.
7 Lead number three is electrically connected to case.
8 Beyond r maximum, TW shall be held for a minimum length of .011 inch (0.28 mm).
9 Symbol r applied to both inside corners of tab.
10 In accordance with ASME Y14.5M, diameters are equivalent to φx symbology.
11 Lead 1 is emitter, lead 2 is base, and lead 3 is collector.
FIGURE 2: Physical dimensions – TO-46 2N3737
Dimensions
Ltr Inches Millimeters Notes
Min Max Min Max
CD .178 .195 4.52 4.95
CH .065 .085 1.65 2.16
HD .209 .230 5.31 5.84
LC .100 TP 2.54 TP 5
LD .016 .021 0.41 0.53
LL .500 1.750 12.70 44.45 6
LU .016 .019 0.41 0.48 6
L
1
.050 1.27 6
L
2
.250 6.35 6
Q
.040 1.02 3
TL .028 .048 0.71 1.22 8
TW .036 .046 0.91 1.17 4
r .010 0.25 9
α 45° TP 45° TP 5
