A ( 5 : 1 )

DETAIL "B"

Transducer (Electro-Mech)

SMT-0821-S-R

J.A.F.

E.P.

B.R.

7/12/2013

-

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-S-R.idw

A3

SIZE

B

REVISION HISTORY

LTR

DESCRIPTION

DATE APPROVED

-

RELEASED FROM ENGINEERING

9/16/2005

A

REVISED TO INVENTOR 3-D DRAWING TEMPLATE

7/12/2013

M.L.

SPECIFICATIONS

PARAMETERS

VALUES

UNIT

RATED VOLTAGE (SQUARE WAVE)

3.6

Vp-p

OPERATING VOLTAGE RANGE

2.5 ~ 4.5

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 2011/65/EU COMPLIANT.

8.5

8.5

0.95

1.03

2.8

4

1.5

0.3

POLARITY

PAD (-)

DUMMY

PAD

POLARITY

PAD (+)

DUMMY

PAD

SOUND EMISSION

HOLE

BOTTOM OF

TRANSDUCER

PAD

0.1 MAX.

0.1 MAX.