PRELIMINARY

TECHNICAL DATA SHEET

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-0110 Rev. 1 (091991)

Page 2 of 4

PACKAGE DIMENSIONS

NOTES:

1. Dimensions are in inches.

2. Millimeters are given for general information only.

3. Beyond radius (r) maximum, TW shall be held for a minimum length of .011 inch (0.279 mm).

4. Dimension TL measured from maximum HD.

5. Outline in this zone is not controlled.

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

7. Leads at gauge plane .054 +.001, -.000 inch (1.37 +0.03, -0.00 mm) below seating plane shall be within .007 inch (0.18 mm)

radius of true position (TP) at maximum material condition (MMC) relative to tab at MMC. The device may be measured

by direct methods.

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

minimum.

9. All three leads.

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

11. Cathode is electrically connected to the case.

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

FIGURE 1- Physical dimensions (TO-205AF - formerly low profile TO-39).

Dimensions

Ltr

Inches

Millimeters

Notes

Min

Max

Min

Max

CD

.305

.335

7.75

8.51

CH

.160

.180

4.07

4.57

HD

.335

.370

8.51

9.40

LC

.200 TP

5.08 TP

7

LD

.016

.021

0.41

0.53

8, 9

LL

.500

.750

12.7

19.05

8, 9

LU

.016

.019

0.41

0.48

8, 9

L1

.050

1.27

8, 9

L2

.250

6.35

8, 9

P

.100

2.54

6

Q

.040

1.02

5

r

.010

0.254

10

TL

.029

.045

0.74

1.14

TW

.028

.034

0.72

0.86

α

45° TP

45° TP

7

Term 1

Anode

Term 2

Open (no connection)

Term 3

Cathode (case)