TC4451/TC4452

DS21987A-page 12

© 2006 Microchip Technology Inc.

5-Lead Plastic Transistor Outline (AT) (TO-220)

L

H1

Q

E

β

e1

e

C1

J1

F

A

D

α (5°)

ØP

EJECTOR PIN

e3

Drawing No. C04-036

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" (0.254 mm) per side.

JEDEC equivalent: TO-220

* Controlling Parameter

Mold Draft Angle

Lead Width

Lead Thickness

α

C1

β

.014

Dimension Limits

Overall Height

Lead Length

Overall Width

Lead Pitch

A

L

E

.540

MIN

e

Units

.060

INCHES*

.022

0.36

0.56

MILLIMETERS

.190

.560

13.72

MIN

MAX

4.83

14.22

MAX

.160

4.06

3°

7°

3°

7°

Overall Length

D

1.02

0.64

.040

.025

Overall Lead Centers

e1

.263

.385

.560

.273

6.68

6.93

.072

1.52

1.83

.415

9.78

10.54

.590

14.22

14.99

Through Hole Diameter

P

.146

.156

3.71

3.96

J1

Base to Bottom of Lead

.090

2.29

.115

2.92

Through Hole Center

Q

.103

2.87

.113

2.62

Flag Thickness

F

.045

1.40

.055

1.14

Flag Length

H1

.234

6.55

.258

5.94

Space Between Leads

e3

.030

1.02

.040

0.76

Revised 08-01-05