Piezo Audio Indicators
PC Board Mounting Type
OMT500
50.0 mm
1.969 in.
FEATURES
OMT500
This product has been
• Very high sound output
• Wave solderable and washable
DISCONTINUED
6.9 mm
0.272 in.
OMT240, 242, 202, 202L
• Small size and lightweight
• Rich sound output and low cur-
rent drain
• OMT242 is wave solderable and
washable
50.0 mm
1.969 in.
OMT22–, OMT23–, OMT27–
Series
• Small size and lightweight
• High sound output and low cur-
rent drain
22.5 mm
0.886 in.
28.9 mm
1.138 in.
All
• Operating temperature
-20°C~60°C; Storage tempera-
ture -30°C~70°C
23.8 mm
0.937"
OMT240
(unsealed)
OMT242
(sealed)
13.8 mm
0.543"
7.6 mm
0.299"
6.7 mm
0.263"
OMT202
OMT202L
16.0 mm
0.630"
6.0 mm
0.236"
5.3 mm
0.208"
7.62 mm
0.300"
Diam.
0.7 mm
0.028"
15.0 mm
0.591"
Diam.
0.8 mm
0.031"
OMT272[L]
OMT276[L]
272L: 14.7 mm
0.579"
276L: 14.5 mm
0.571"
OMT222[L]
OMT232[L]
272L: 32.0 mm
1.260"
276L: 30.0 mm
1.181"
10.5 mm
0.413"
6.0 mm
0.236"
23.5 mm
0.925"
6.0 mm
0.236"
17.5 mm
0.689"
Diam.
1.0 mm
0.039"
222L: 15.0 mm
0.591"
232L: 17.5 mm
0.689"
Diam.
0.8 mm
0.031"
Model No.
✔
OMT202
✙
OMT202L
✙
OMT222
✙
OMT222L
✔
OMT232
✔
OMT232L
✙
OMT242
✔
OMT272
✔
OMT272L
✔
OMT276
✔
OMT276L
✔
OMT500
*at 12 VDC
Oscillating
frequency
(Hz ±500)
3000
2900
3200
3200
3200
3200
4100
3500
3500
2700
2700
2500
60cm
Operating
voltage
3–20 DC
3–20 DC
3–20 DC
3–20 DC
3–20 DC
3–20 DC
3–16 DC
3–28 DC
3–20 DC
3–28 DC
3–20 DC
5–13 DC
Sound pressure
Current
@30cm/12vdc consumption*
(dB min.)
(mA max.)
77
90
75
82
75
82
70
82
93
71
98
104
†
14
8
12
10
12
9
7
4
10
5
8
70
Tone
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Pins
2
2
2
2
2
2
2
2
2
2
2
3
Weight
(g)
5.0
6.0
6.0
6.0
6.0
6.0
1.0
7.0
7.0
7.0
7.0
40.0
†
at
✙
= Most popular stock values
✔
= Stock values
✜
= Non–stock values subject to mini-
mum handling charge per item
84
Ohmite Mfg. Co.
1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
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