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2021 Microchip Technology Inc. and its subsidiaries

DS20006616A-page 17

MIC4451/52

For the most current package drawings, please see the Microchip Packaging Specification located at

http://www.microchip.com/packaging

Note:

REF: Reference Dimension, usually without tolerance, for information purposes only.

BSC: Basic Dimension. Theoretically exact value shown without tolerances.

Notes:

1.

2.

Pin 1 visual index feature may vary, but must be located within the hatched area.

Dimensioning and tolerancing per ASME Y14.5M

INCHES

Dimension Limits

Min

Nom

Max

Number of Leads

N

5

Pitch

e

.067 BSC

A

t

h

g

i

e

H

ll

a

r

e

v

O

.160

.175

.190

Tab Height

A1

.045

.050

.055

Lead Width

b

.025

.033

.040

Lead Thickness

c

.012

.016

.020

Total Body Length Including Tab

D

.542

.580

.619

Molded Body Length

D1

.348

.354

.360

E

h

t

d

i

W

l

a

t

o

T

.380

.400

.420

1

E

h

t

d

i

W

d

a

P

0.256 REF

2

D

h

t

g

n

e

L

d

a

P

0.486 REF

L

h

t

g

n

e

L

d

a

e

L

.500

.540

.580

ØP

.146

.151

.156

Hole Center to Tab Edge

Q

.103

.108

.113

0

1

7

3

e

l

g

n

A

t

f

a

r

D

y

d

o

B

d

e

d

l

o

M

4

1

e

l

g

n

A

t

f

a

r

D

y

d

o

B

d

e

d

l

o

M

7

2

1

Hole Diameter

Microchip Technology Drawing C04-036 Rev D Sheet 2 of 2

5-Lead Transistor Outline Type LB03 (B8X) - [TO-220]

Micrel Legacy Package TO220-LB03-5LD-PL-1

Seating Plane to Lead

A2

.080

.098

.115