A ( 5 : 1 )
DETAIL "B"
Transducer (Electro-Mech)
SMT-0820-S-R
G.V.
E.P.
R.W.
4/27/2010
-
Designed by
Checked by
Approved by
Drawn Date
1 / 1
Edition Sheet
Date
3/31/2005
Date
4/1/2005
Date
4/1/2005
UNLESS OTHERWISE
SPECIFIED:
DIMENSIONS ARE IN
MILLIMETERS,
TOLERANCES
ARE ±0.5 AND
ANGLES ARE ±3°.
SMT-0820-S-R.idw
A3
SIZE
B
REVISION HISTORY
LTR DESCRIPTION DATE APPROVED
-
RELEASED FROM ENGINEERING 4/1/2005
A ADDED RoHS COMPLIANCE NOTE 8/10/2005
B REVISED TO INVENTOR 3-D DRAWING TEMPLATE 4/27/2010 B.R.
SPECIFICATIONS
PARAMETERS VALUES UNIT
RATED VOLTAGE (SQUARE WAVE)
5
Vp-p
OPERATING VOLTAGE RANGE
4 ~ 6
Vp-p
RATED CURRENT (MAX)
70 mA
COIL RESISTANCE 32 ± 5 OHM
MINIMUM SPL @ 10 CM
85 dBA
RESONANT FREQUENCY
2,000 ± 500
Hz
OPERATING TEMPERATURE
-30 ~ +70
°C
STORAGE TEMPERATURE
-40 ~ +85
°C
HOUSING MATERIAL
lcp -
TERMINAL MATERIAL
Sn PLATED
PHOSPHOR BRONZE
-
WEIGHT
.42
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
8.5
0.95
1.03
2.8
4
1.5 `0.1
0.3 `0.1
POLARITY
PAD (-)
DUMMY
PAD
DUMMY
PAD
POLARITY
PAD (+)
SOUND EMISSION
HOLE
BOTTOM OF
TRANSDUCER
PAD
0.1 MAX.
0.1 MAX.
0
6
.
B
T
0
8
2
0
S
R
P
U
I
K
O
R
E
A
