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http://www.union-ic.com Rev.07 May.2016

8/10

UM142xx

Package Information

UM142xxS: SOT23-3

Outline Drawing

e1

b

D

e

Top View

Side View

3

1

2

c

θ

End View

DIMENSIONS

Symbol

MILLIMETERS

INCHES

Min

Typ

Max

Min

Typ

Max

A

1.013

1.15

1.40

0.040

0.045

0.055

A1

0.00

0.05

0.10

0.000

0.002

0.004

A2

1.00

1.10

1.30

0.039

0.043

0.051

b

0.30

-

0.50

0.012

-

0.020

c

0.10

0.15

0.20

0.004

0.006

0.008

D

2.82

-

3.10

0.111

-

0.122

E

1.50

1.60

1.70

0.059

0.063

0.067

E1

2.60

2.80

3.00

0.102

0.110

0.118

e

0.95REF

0.037REF

e1

1.90REF

0.075REF

L

0.30

-

0.60

0.012

-

0.024

θ

0°

-

8°

0°

-

8°

Land Pattern

1.90

0.56

NOTES:

1. Compound dimension: 2.92×1.60；

2. Unit: mm;

3. General tolerance ±0.05mm unless otherwise

specified;

4. The layout is just for reference.

Tape and Reel Orientation

5XX