TECHNICAL DATA SHEET

6 Lake Street, Lawrence, MA 01841

6 Lake Street, Lawrence, MA 01841

Gort Road Business Park, Ennis, Co. Clare, Ireland

1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803

Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298

Website: http://www.microsemi.com

T4-LDS-0202 Rev. 1 (110638)

Page 3 of 4

PACKAGE DIMENSIONS

NOTES:

1

Dimensions are in inches.

2

Millimeters are given for general information only.

3

Tab Shown omitted.

4

Lead number 4 and 8 omitted on this variation.

5

Beyond r maximum, TW shall be held to a minimum length of .21 inch (5.33 mm)

6

TL shall be measured from maximum CD.

7

Details of outline in this zone are optional.

8

CD1 shall not vary more than .010 inch (0.25 mm) in zone P. This zone is controlled for automatic handling.

9

Leads at gauge plane .054 - .055 inch (1.37 - 1.40 mm) below seating plane shall be within .007 inch (0.18 mm) radius of

true position (TP) at a maximum material condition (MMC) relative to the tab at MMC. The device may be measured by

direct methods or by the gauge and gauging procedures described on gauge drawing GS-1.

10

LU applies between L1 and L2. LD applies between L2 and LL minimum. Diameter is uncontrolled in L1 and beyond LL

minimum.

11

For transistor types 2N2919 and 2N2920, LL is .500 inch (12.70 mm) minimum and .750 inch (19.05 mm) maximum.

12

For transistor type 2N2919L and 2N2920L, LL is 1.500 inches (38.10 mm) minimum and 1.750 inches (44.45 mm)

maximum.

13

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

φx symbology.

FIGURE 1. Physical dimensions 2N2919, 2N2919L, 2N2920, and 2N2920L (TO-78).

DIMENSIONS

Symbol

Inches

Millimeters

Notes

Min

Max

Min

Max

CD

.335

.370

8.51

9.40

CD1

.305

.335

7.75

8.51

CH

.140

.260

3.56

6.60

HT

.009

.041

0.23

1.04

LC

.140

.160

3.56

4.06

LC1

.200 TP

5.08 TP

9

LD

.016

.021

.041

0.53

10

LL

See notes 10, 11 and 12

LU

.016

.019

.041

0.48

10

L1

.050

1.27

10

L2

.250

6.35

10

P

.100

2.54

8

Q

.050

1.27

7

TL

.029

.045

0.74

1.14

5, 6

TW

.028

.034

0.71

0.86

4, 5

r

.010

0.25

α

45°TP

45°TP

9