B ( 3 : 1 )

DETAIL "C"

C

Transducer (Electro-Mech)

SMT-0821-T-R

J.A.F.

B.R.

E.P.

10/26/2008

-

Designed by

Checked by

Approved by

Drawn Date

1 / 1

Edition

Sheet

Date

9/16/2005

Date

9/16/2005

Date

9/16/2005

UNLESS OTHERWISE

SPECIFIED:

DIMENSIONS ARE IN

MILLIMETERS,

TOLERANCES

ARE 0.5 AND

ANGLES ARE 3 .

SMT-0821-T-R.idw

A3

SIZE

REVISION HISTORY

LTR

DESCRIPTION

DATE

APPROVED

-

RELEASED FROM ENGINEERING

9/16/2005

A

REVISED LOWER HOUSING

10/8/2008

B.R.

B

REVISED TO INVENTOR 3-D DRAWING TEMPLATE

10/26/2008

E.P.

SPECIFICATIONS

PARAMETERS

VALUES

UNITS

RATED VOLTAGE (SQUARE WAVE)

3.6

Vp-p

OPERATING VOLTAGE RANGE

2 ~ 5

Vp-p

RATED CURRENT (MAX)

90

mA

COIL RESISTANCE

15

3

OHM

MINIMUM SPL @ 10 CM

87

dBA

RESONANT FREQUENCY

2,100

500

Hz

OPERATING TEMPERATURE

-30 ~ +70

C

STORAGE TEMPERATURE

-40 ~ +85

C

HOUSING MATERIAL

LCP

-

TERMINAL MATERIAL

Sn PLATED

PHOSPHOR BRONZE

-

WEIGHT

0.43

grams

THIS DOCUMENT CONTAINS DATA

PROPRIETARY TO PROJECTS UNLIMITED, INC.

ANY USE OR REPRODUCTION, IN ANY FORM,

WITHOUT PRIOR WRITTEN PERMISSION OF

PROJECTS UNLIMITED, INC. IS PROHIBITED.

2003, Projects Unlimited Inc.

NOTES:

1. ALL DIMENSIONS ARE IN MILLIMETERS.

2. SPECIFICATIONS SUBJECT TO CHANGE OR WITHDRAWL

WITHOUT NOTICE.

3. THIS PART IS RoHS 2002/95/EC COMPLIANT.

8.5

0.2

8.5

0.2

4

0.1

1.5

0.1 (3)

0.3

0.1 (3)

2 SOUND

EMISSION HOLE

POLARITY

PAD(+)

DUMMY PAD

DUMMY PAD

POLARITY

PAD (-)

0.11

0

0.1

0

BOTTOM OF TRANSDUCER

PAD