Buzzers & Audio Indicators - Board Mount

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MSR205 Piezoelectric Indicators

Mallory Sonalert MSR Series is a Piezoelectric Indicator, with DC voltage, housed in a ø23mm x 11mm blue round housing with PC Pins. Features include loud continuous or pulse sound levels ranging from 75dBa to 96dBa and a 3.4kHz to 3.9kHz frequency range with gullwing lead or solder pin terminations. Options include board mount or flush mount and sealed (wash label included) versions are also available.

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Results: 15

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Part #

Buzzers & Audio Indicators - Board Mount Low Voltage

MSR205NR
Mallory Sonalert
1: $9.94
2,041In Stock

Mfr. Part No.
MSR205NR

Mouser Part No
539-MSR205NR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

2,041In Stock

$9.94

$8.52

$7.59

$6.95

$6.41

Min.: 1
Mult.: 1

Indicators

Piezoelectric

85 dBA

Continuous

3.9 kHz

3 VDC

10 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount Low Voltage

MSR205NJSR
Mallory Sonalert
1: $12.82
30In Stock

Mfr. Part No.
MSR205NJSR

Mouser Part No
539-MSR205NJSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

30In Stock

$12.82

$10.46

$9.47

$8.61

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

85 dBA

Pulse

3.9 kHz

3 VDC

10 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount FAST PULSE, 5-16VDC XLOUD, SEALED

MSR516NPSR
Mallory Sonalert
1: $10.54
2In Stock

Mfr. Part No.
MSR516NPSR

Mouser Part No
539-MSR516NPSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount FAST PULSE, 5-16VDC XLOUD, SEALED

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Datasheet

2In Stock

$10.54

$9.76

$9.07

$8.72

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

86 dBA

Pulse

3.9 kHz

16 VDC

12 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount CONSTANT, 5-16VDC XLOUD, 23X10MM

MSR516NR
Mallory Sonalert
1: $8.30
8,088In Stock

Mfr. Part No.
MSR516NR

Mouser Part No
539-MSR516NR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount CONSTANT, 5-16VDC XLOUD, 23X10MM

Learn More

Datasheet

8,088In Stock

$8.30

$7.27

$6.65

$6.20

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

96 dBA

Continuous

3.9 kHz

16 VDC

14 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount CONSTANT, 3-20VDC MEDIUM, 23X10MM

MSR320R
Mallory Sonalert
1: $8.86
1,533In Stock
260On Order

Mfr. Part No.
MSR320R

Mouser Part No
539-MSR320R

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount CONSTANT, 3-20VDC MEDIUM, 23X10MM

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Datasheet

1,533In Stock

260On Order

$8.86

$6.90

$6.23

$5.88

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

75 dBA

Continuous

3.8 kHz

20 VDC

16 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount CONSTANT, 5-16VDC LOUD, SEALED, PINS

MSR516NSR
Mallory Sonalert
1: $9.66
395In Stock

Mfr. Part No.
MSR516NSR

Mouser Part No
539-MSR516NSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount CONSTANT, 5-16VDC LOUD, SEALED, PINS

Learn More

Datasheet

395In Stock

$9.66

$7.59

$6.87

$6.38

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

96 dBA

Continuous

3.9 kHz

16 VDC

14 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount Low Voltage

MSR205NPR
Mallory Sonalert
1: $12.54
16In Stock

Mfr. Part No.
MSR205NPR

Mouser Part No
539-MSR205NPR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

16In Stock

$12.54

$10.09

$8.96

$8.32

View

Min.: 1
Mult.: 1

Buzzers

85 dBA

Pulse

3.9 kHz

3 V

10 mA

Solder Pin

Board Mount

23 mm

23 mm L x 23 mm W x 11 mm H

Buzzers & Audio Indicators - Board Mount CONSTANT, 4-10VDC LOUD, 23X10MM, PINS

MSR414NR
Mallory Sonalert
1: $9.86
45In Stock

Mfr. Part No.
MSR414NR

Mouser Part No
539-MSR414NR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount CONSTANT, 4-10VDC LOUD, 23X10MM, PINS

Learn More

Datasheet

45In Stock

$9.86

$7.63

$7.19

$6.54

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

86 dBA

Continuous

3.9 kHz

10 VDC

12 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount SLOW PULSE, 5-16VDC LOUD, 23X10MM, PINS

MSR516NJR
Mallory Sonalert
1: $10.50
162In Stock

Mfr. Part No.
MSR516NJR

Mouser Part No
539-MSR516NJR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount SLOW PULSE, 5-16VDC LOUD, 23X10MM, PINS

Learn More

Datasheet

162In Stock

$10.50

$10.26

$7.47

$6.93

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

96 dBA

Pulse

3.9 kHz

16 VDC

12 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount CONSTANT, 3-20VDC SEALED, 23X10MM

MSR320SR
Mallory Sonalert
1: $8.83
1,000Expected 2026/08/19

Mfr. Part No.
MSR320SR

Mouser Part No
539-MSR320SR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount CONSTANT, 3-20VDC SEALED, 23X10MM

Learn More

Datasheet

1,000Expected 2026/08/19

$8.83

$6.90

$6.25

$5.79

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

86 dBA

Continuous

3.8 kHz

20 VDC

16 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount Low Voltage

MSR205NPSR
Mallory Sonalert
1: $13.26
15Expected 2026/08/12

Mfr. Part No.
MSR205NPSR

Mouser Part No
539-MSR205NPSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

15Expected 2026/08/12

$13.26

$12.97

$12.33

$11.83

View

Min.: 1
Mult.: 1

Buzzers

85 dBA

Pulse

3.9 kHz

3 V

10 mA

Solder Pin

Board Mount

23 mm

23 mm L x 23 mm W x 11 mm H

Buzzers & Audio Indicators - Board Mount Low Voltage

MSR205NJR
Mallory Sonalert
1: $12.54
Lead-Time 4 Weeks

Mfr. Part No.
MSR205NJR

Mouser Part No
539-MSR205NJR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

Lead-Time 4 Weeks

$12.54

$9.89

$8.96

$8.32

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

85 dBA

Pulse

3.9 kHz

3 VDC

10 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount Low Voltage

MSR205NSR
Mallory Sonalert
1: $12.41
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
MSR205NSR

Mouser Part No
539-MSR205NSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$12.41

$9.55

$8.65

$8.04

View

Min.: 1
Mult.: 1

Indicators

Piezoelectric

85 dBA

Continuous

3.9 kHz

3 VDC

10 mA

Solder Pin

Through Hole

23 mm

23 mm x 23 mm x 11 mm

Buzzers & Audio Indicators - Board Mount SLOW PULSE, 5-16VDC XLOUD, SEALED

MSR516NJSR
Mallory Sonalert
1: $10.77
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
MSR516NJSR

Mouser Part No
539-MSR516NJSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount SLOW PULSE, 5-16VDC XLOUD, SEALED

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$10.77

$10.53

$9.86

$9.56

View

Min.: 1
Mult.: 1

Buzzers

90 dBA

Pulse

16 V

12 mA

Gullwing Lead

23 mm

23 mm L x 23 mm W x 11 mm H

Buzzers & Audio Indicators - Board Mount FAST PULSE, 5-16VDC LOUD, 23X10MM, PINS

MSR516NPR
Mallory Sonalert
1: $10.63
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
MSR516NPR

Mouser Part No
539-MSR516NPR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount FAST PULSE, 5-16VDC LOUD, 23X10MM, PINS

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$10.63

$9.90

$8.98

$8.48

View

Min.: 1
Mult.: 1

Buzzers

96 dBA

Pulse

3.7 kHz

16 V

12 mA

Solder Pin

Flush Mount

23 mm

23 mm L x 23 mm W x 11 mm H

MSR205 Piezoelectric Indicators

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