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http://www.union-ic.com Rev.02 Nov.2014

6/10

UESD54B/55B/56B/57B/64B

UESD55B SC89-6/SOT563/SOT666

Outline Drawing

DIMENSIONS

Symbol

MILLIMETERS

INCHES

Min

Max

Min

Max

A

0.525

0.600

0.021

0.024

A1

0.000

0.050

0.000

0.002

b

0.150

0.300

0.006

0.012

c

0.090

0.180

0.004

0.007

D

1.500

1.700

0.059

0.067

E

1.100

1.300

0.043

0.051

E1

1.500

1.700

0.059

0.067

e

0.450

0.550

0.018

0.022

L

0.100

0.300

0.004

0.012

θ

7°REF

7°REF

Land Pattern

NOTES:

1. Compound dimension: 1.60×1.20;

2. Unit: mm;

3.General tolerance ±0.05mm unless otherwise

specified;

4. The layout is just for reference.

Tape and Reel Orientation