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: $10.59
2,041In Stock

Mfr. Part #
MSR205NR

Mouser Part #
539-MSR205NR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

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Datasheet

2,041In Stock

$10.59

$7.73

$7.32

$7.05

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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 FAST PULSE, 5-16VDC XLOUD, SEALED

MSR516NPSR
Mallory Sonalert
1: $10.53
2In Stock

Mfr. Part #
MSR516NPSR

Mouser Part #
539-MSR516NPSR

Mallory Sonalert

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

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Datasheet

2In Stock

$10.53

$9.76

$9.07

$8.72

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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: $9.28
7,448In Stock

Mfr. Part #
MSR516NR

Mouser Part #
539-MSR516NR

Mallory Sonalert

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

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Datasheet

7,448In Stock

$9.28

$7.38

$6.68

$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: $8.53
1,058In Stock
1,885Expected 10/9/2026

Mfr. Part #
MSR320R

Mouser Part #
539-MSR320R

Mallory Sonalert

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

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Datasheet

1,058In Stock

1,885Expected 10/9/2026

$8.53

$6.89

$6.16

$5.77

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, 3-20VDC SEALED, 23X10MM

MSR320SR
Mallory Sonalert
1: $8.93
925In Stock

Mfr. Part #
MSR320SR

Mouser Part #
539-MSR320SR

Mallory Sonalert

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

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Datasheet

925In Stock

$8.93

$7.09

$6.42

$5.96

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 CONSTANT, 5-16VDC LOUD, SEALED, PINS

MSR516NSR
Mallory Sonalert
1: $10.05
Lead-Time 4 Weeks

Mfr. Part #
MSR516NSR

Mouser Part #
539-MSR516NSR

Mallory Sonalert

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

Learn More

Datasheet

Lead-Time 4 Weeks

$10.05

$8.27

$7.21

$6.69

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

MSR205NJSR
Mallory Sonalert
1: $12.81
20In Stock

Mfr. Part #
MSR205NJSR

Mouser Part #
539-MSR205NJSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

20In Stock

$12.81

$10.45

$9.26

$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 CONSTANT, 4-10VDC LOUD, 23X10MM, PINS

MSR414NR
Mallory Sonalert
1: $9.86
45In Stock

Mfr. Part #
MSR414NR

Mouser Part #
539-MSR414NR

Mallory Sonalert

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

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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
199In Stock

Mfr. Part #
MSR516NJR

Mouser Part #
539-MSR516NJR

Mallory Sonalert

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

Learn More

Datasheet

199In Stock

$10.50

$10.26

$7.46

$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 Low Voltage

MSR205NPR
Mallory Sonalert
1: $12.54
28On Order

Mfr. Part #
MSR205NPR

Mouser Part #
539-MSR205NPR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

28On Order

$12.54

$10.09

$8.95

$8.31

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
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
MSR205NJR

Mouser Part #
539-MSR205NJR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$12.54

$9.88

$8.95

$8.31

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

MSR205NPSR
Mallory Sonalert
1: $13.26
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
MSR205NPSR

Mouser Part #
539-MSR205NPSR

Mallory Sonalert

Buzzers & Audio Indicators - Board Mount Low Voltage

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$13.26

$12.96

$12.32

$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

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

Mfr. Part #
MSR205NSR

Mouser Part #
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: $11.03
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
MSR516NJSR

Mouser Part #
539-MSR516NJSR

Mallory Sonalert

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

Learn More

Datasheet

Non-Stocked Lead-Time 4 Weeks

$11.03

$10.17

$9.43

$9.04

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: $11.16
Non-Stocked Lead-Time 4 Weeks

Mfr. Part #
MSR516NPR

Mouser Part #
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

$11.16

$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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