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http://www.union-ic.com Rev.07 Dec.2014

13/19

UM153xx/UM154xx

Package Information

UM153xxS SOT23-3

Outline Drawing

D

e

e1

3

1

2

0.2

θ

c

Top View

End View

Side View

b

DIMENSIONS

Symbol

MILLIMETERS

INCHES

Min

Max

Min

Max

A

1.050

1.250

0.041

0.049

A1

0.000

0.100

0.000

0.004

A2

1.050

1.150

0.041

0.045

b

0.300

0.500

0.012

0.020

c

0.100

0.200

0.004

0.008

D

2.820

3.020

0.111

0.119

E

1.500

1.700

0.059

0.067

E1

2.650

2.950

0.104

0.116

e

0.950REF

0.037REF

e1

1.800

2.000

0.071

0.079

L

0.550REF

0.022REF

L1

0.300

0.600

0.012

0.024

θ

0°

8°

0°

8°

Land Pattern

1.90

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

XXX