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-0055 Rev. 4 (100247)

Page 3 of 6

PACKAGE DIMENSIONS

NOTES:

Dimensions

1. Dimensions are in inches.

Symbol

Inches

Millimeters

Note

2. Millimeters are given for general information only.

Min

Max

Min

Max

3. Beyond r (radius) maximum, TW shall be held for a minimum length

CD

.178

.195

4.52

4.95

of .011 inch (0.28 mm).

CH

.170

.210

4.32

5.33

4. Dimension TL measured from maximum HD.

HD

.209

.230

5.31

5.84

5. Body contour optional within zone defined by HD, CD, and Q.

LC

.100 TP

2.54 TP

6

6. Leads at gauge plane .054 +.001 -.000 inch (1.37 +0.03 -0.00 mm)

LD

.016

.021

0.41

0.53

7,8

below seating plane shall be within .007 inch (0.18 mm) radius of

LL

.500

.750

12.70

19.05

7,8,13

true position (TP) at maximum material condition (MMC) relative to

LU

.016

.019

0.41

0.48

7,8

tab at MMC.

.050

1.27

7,8

.250

6.35

7,8

P

.100

2.54

beyond LL minimum.

Q

.030

0.76

5

8. All three leads.

TL

.028

.048

0.71

1.22

3,4

9. The collector shall be internally connected to the case.

TW

.036

.046

0.91

1.17

3

10. Dimension r (radius) applies to both inside corners of tab.

r

.010

0.25

10

11. In accordance with ASME Y14.5M, diameters are equivalent to

φx

α

45

° TP

45

° TP

6

symbology.

12. Lead 1 = emitter, lead 2 = base, lead 3 = collector.

13. For L suffix devices, dimension LL = 1.5 inches (38.10 mm) min.

and 1.75 inches (44.45 mm) max.

FIGURE 1. Physical dimensions (similar to TO-18)