Magnetic / Reed Switches

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Reed Switches

Littelfuse Reed Switches are ideal for battery-powered applications and automotive safety products. Reed switches have two ferromagnetic blades contained within a tubular glass envelope that is hermetically sealed at each end. Switches are activated by a permanent magnet or an electromagnet, and the reed switch and magnetic field combination is commonly known as the "magnetic circuit."

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Part #

Magnetic / Reed Switches 59050-3-S-00-0 SENS

59050-3-S-00-0
Littelfuse
1: S/19.50
1,015In Stock

Mfr. Part #
59050-3-S-00-0

Mouser Part #
576-59050-3-S-00-0

Littelfuse

Magnetic / Reed Switches 59050-3-S-00-0 SENS

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Datasheet

1,015In Stock

S/19.50

S/16.27

S/15.10

S/12.73

View

Min.: 1
Mult.: 1

140 VAC

PCB Mount

Through Hole

Bulk

Magnetic / Reed Switches 59050-3-T-00-0 SENS

59050-3-T-00-0
Littelfuse
1: S/19.38
636In Stock

Mfr. Part #
59050-3-T-00-0

Mouser Part #
576-59050-3-T-00-0

Littelfuse

Magnetic / Reed Switches 59050-3-T-00-0 SENS

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Datasheet

636In Stock

S/19.38

S/16.19

S/14.99

S/12.65

View

Min.: 1
Mult.: 1

140 VAC

PCB Mount

Through Hole

Bulk

Magnetic / Reed Switches MDSM-10R 5431 10-25

MDSM-10R-10-25
Littelfuse
1: S/6.70
2,425In Stock

Mfr. Part #
MDSM-10R-10-25

Mouser Part #
934-MDSM-10R10-25

Littelfuse

Magnetic / Reed Switches MDSM-10R 5431 10-25

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Datasheet

2,425In Stock

Cut Tape

S/6.70

S/5.76

S/5.33

S/4.75

Reel

S/3.28

View

Min.: 1
Mult.: 1

: 3,000

Sub-Miniature

SPST

10 AT to 25 AT

140 VAC

Clear

PCB Mount

Axial

Reel, Cut Tape

Magnetic / Reed Switches 59165-1-T-00-A SENS

59165-1-T-00-A
Littelfuse
1: S/7.90
2,837In Stock

Mfr. Part #
59165-1-T-00-A

Mouser Part #
934-59165-1-T-00-A

Littelfuse

Magnetic / Reed Switches 59165-1-T-00-A SENS

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Datasheet

2,837In Stock

S/7.90

S/6.66

S/6.19

S/5.53

View

Min.: 1
Mult.: 1

Miniature

SPST

15 AT to 20 AT

140 VAC

Black

PCB Mount

Axial

Bulk

Magnetic / Reed Switches MDSM-10R 5431 15-20

MDSM-10R-15-20
Littelfuse
1: S/6.11
2,877In Stock

Mfr. Part #
MDSM-10R-15-20

Mouser Part #
934-MDSM-10R15-20

Littelfuse

Magnetic / Reed Switches MDSM-10R 5431 15-20

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Datasheet

2,877In Stock

Cut Tape

S/6.11

S/5.18

S/4.67

S/4.40

View

Reel

S/3.55

Min.: 1
Mult.: 1

: 3,000

Sub-Miniature

SPST

15 AT to 20 AT

140 VAC

Clear

PCB Mount

Axial

Reel, Cut Tape

Magnetic / Reed Switches 59050-1-T-00-0 SENS

59050-1-T-00-0
Littelfuse
1: S/9.81
976In Stock

Mfr. Part #
59050-1-T-00-0

Mouser Part #
934-59050-1-T-00-0

Littelfuse

Magnetic / Reed Switches 59050-1-T-00-0 SENS

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Datasheet

976In Stock

S/9.81

S/8.25

S/7.67

S/6.46

View

Min.: 1
Mult.: 1

Miniature

SPST

17 AT to 23 AT

140 VAC

Black

PCB Mount

Through Hole

Bulk

Magnetic / Reed Switches MLRR-4 17-23

MLRR-4-17-23
Littelfuse
1: S/5.41
1,978In Stock

Mfr. Part #
MLRR-4-17-23

Mouser Part #
934-MLRR-417-23

Littelfuse

Magnetic / Reed Switches MLRR-4 17-23

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Datasheet

1,978In Stock

S/5.41

S/4.59

S/4.28

S/3.80

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

17 AT to 23 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Magnetic / Reed Switches 59050 020 SENSOR

59050-020
Littelfuse
1: S/13.55
1,000In Stock

Mfr. Part #
59050-020

Mouser Part #
934-59050-020

Littelfuse

Magnetic / Reed Switches 59050 020 SENSOR

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Datasheet

1,000In Stock

S/13.55

S/11.37

S/10.51

S/8.87

View

Min.: 1
Mult.: 1

Miniature

SPST

Black

PCB Mount

Through Hole

Bulk

Magnetic / Reed Switches 59165-1-U-00-D SENSOR

59165-1-U-00-D
Littelfuse
1: S/5.92
3,738In Stock

Mfr. Part #
59165-1-U-00-D

Mouser Part #
934-59165-1-U-00-D

Littelfuse

Magnetic / Reed Switches 59165-1-U-00-D SENSOR

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Datasheet

3,738In Stock

Cut Tape

S/5.92

S/5.10

S/4.75

S/4.24

Reel

S/2.90

View

Min.: 1
Mult.: 1

: 1,500

Miniature

SPST

20 AT to 25 AT

140 VAC

Black

PCB Mount

Gull Wing Lead

Reel, Cut Tape

Magnetic / Reed Switches 59170-1-S-00-C SENSOR

59170-1-S-00-C
Littelfuse
1: S/9.93
6,019In Stock

Mfr. Part #
59170-1-S-00-C

Mouser Part #
934-59170-1-S-00-C

Littelfuse

Magnetic / Reed Switches 59170-1-S-00-C SENSOR

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Datasheet

6,019In Stock

S/9.93

S/8.37

S/7.75

S/6.93

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

10 AT to 15 AT

140 VAC

Black

PCB Mount

Gull Wing Lead

Bulk

Magnetic / Reed Switches MDRR-DT 1156 15-30 U

MDRR-DT-15-30-U
Littelfuse
1: S/20.79
2,321In Stock

Mfr. Part #
MDRR-DT-15-30-U

Mouser Part #
934-MDRR-DT15-30U

Littelfuse

Magnetic / Reed Switches MDRR-DT 1156 15-30 U

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Datasheet

2,321In Stock

S/20.79

S/17.36

S/16.08

S/14.36

View

Min.: 1
Mult.: 1

Miniature

SPDT

15 AT to 30 AT

120 VAC

Clear

PCB Mount

SMD/SMT

Bulk

Magnetic / Reed Switches MDSM-10B 5430 10-15

MDSM-10B-10-15
Littelfuse
1: S/6.19
787In Stock

Mfr. Part #
MDSM-10B-10-15

Mouser Part #
934-MDSM-10B10-15

Littelfuse

Magnetic / Reed Switches MDSM-10B 5430 10-15

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Datasheet

787In Stock

S/6.19

S/5.25

S/5.02

S/4.48

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

10 AT to 15 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Magnetic / Reed Switches MDCG-4 22-28

MDCG-4-22-28
Littelfuse
1: S/5.22
318In Stock
3,000Expected 11/2/2026

Mfr. Part #
MDCG-4-22-28

Mouser Part #
934-MDCG-422-28

Littelfuse

Magnetic / Reed Switches MDCG-4 22-28

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Datasheet

318In Stock

3,000Expected 11/2/2026

S/5.22

S/4.71

S/4.32

S/3.97

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

22 AT to 28 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Magnetic / Reed Switches SPST 140VAC, 15 AT-20 AT Range

MDSR-10-15-20
Littelfuse
1: S/5.41
1,781In Stock

Mfr. Part #
MDSR-10-15-20

Mouser Part #
934-MDSR-1015-20

Littelfuse

Magnetic / Reed Switches SPST 140VAC, 15 AT-20 AT Range

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Datasheet

1,781In Stock

S/5.41

S/4.59

S/4.28

S/3.80

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

15 AT to 20 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Magnetic / Reed Switches 59050-1-S-00-0 SENS

59050-1-S-00-0
Littelfuse
1: S/9.81
646In Stock

Mfr. Part #
59050-1-S-00-0

Mouser Part #
934-59050-1-S-00-0

Littelfuse

Magnetic / Reed Switches 59050-1-S-00-0 SENS

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Datasheet

646In Stock

S/9.81

S/8.25

S/7.67

S/6.46

View

Min.: 1
Mult.: 1

Miniature

SPST

12 AT to 18 AT

140 VAC

Black

PCB Mount

Through Hole

Bulk

Magnetic / Reed Switches NO 20-25AT 5mm Overmolded Sensor

59166-1-U-00-D
Littelfuse
1: S/5.25
1,219In Stock

Mfr. Part #
59166-1-U-00-D

Mouser Part #
934-59166-1-U-00-D

Littelfuse

Magnetic / Reed Switches NO 20-25AT 5mm Overmolded Sensor

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Datasheet

1,219In Stock

Cut Tape

S/5.25

S/4.48

S/4.16

S/3.68

Reel

S/2.82

View

Min.: 1
Mult.: 1

: 1,500

Miniature

SPST

20 AT to 25 AT

140 VAC

Black

PCB Mount

Gull Wing Lead

Reel, Cut Tape

Magnetic / Reed Switches MDSR-10 20-25

MDSR-10-20-25
Littelfuse
1: S/5.41
985In Stock

Mfr. Part #
MDSR-10-20-25

Mouser Part #
934-MDSR-1020-25

Littelfuse

Magnetic / Reed Switches MDSR-10 20-25

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Datasheet

985In Stock

S/5.41

S/4.59

S/4.28

S/3.80

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

20 AT to 25 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Magnetic / Reed Switches MDRR-DT 1156 15-20 U

MDRR-DT-15-20-U
Littelfuse
1: S/20.47
666In Stock

Mfr. Part #
MDRR-DT-15-20-U

Mouser Part #
934-MDRR-DT15-20U

Littelfuse

Magnetic / Reed Switches MDRR-DT 1156 15-20 U

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Datasheet

666In Stock

S/20.47

S/17.05

S/15.80

S/14.09

View

Min.: 1
Mult.: 1

Miniature

SPDT

15 AT to 20 AT

120 VAC

Clear

PCB Mount

SMD/SMT

Bulk

Magnetic / Reed Switches MLRR-4 22-28

MLRR-4-22-28
Littelfuse
1: S/5.92
957In Stock

Mfr. Part #
MLRR-4-22-28

Mouser Part #
934-MLRR-422-28

Littelfuse

Magnetic / Reed Switches MLRR-4 22-28

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Datasheet

957In Stock

S/5.92

S/5.10

S/4.75

S/4.24

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

22 AT to 28 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Magnetic / Reed Switches 59170-1-T-00-A SENS

59170-1-T-00-A
Littelfuse
1: S/9.93
689In Stock

Mfr. Part #
59170-1-T-00-A

Mouser Part #
934-59170-1-T-00-A

Littelfuse

Magnetic / Reed Switches 59170-1-T-00-A SENS

Learn More

Datasheet

689In Stock

S/9.93

S/8.37

S/7.75

S/6.93

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

15 AT to 20 AT

140 VAC

Black

PCB Mount

Axial

Bulk

Magnetic / Reed Switches MDSM-4R 5277 17-23

MDSM-4R-17-23
Littelfuse
1: S/5.61
1,663In Stock

Mfr. Part #
MDSM-4R-17-23

Mouser Part #
934-MDSM-4R17-23

Littelfuse

Magnetic / Reed Switches MDSM-4R 5277 17-23

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Datasheet

1,663In Stock

Cut Tape

S/5.61

S/4.79

S/4.44

S/3.97

View

Reel

S/3.27

MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Sub-Miniature

SPST

17 AT to 23 AT

140 VAC

Clear

PCB Mount

Axial

Reel, Cut Tape, MouseReel

Magnetic / Reed Switches 59170-1-U-00-A SENS

59170-1-U-00-A
Littelfuse
1: S/9.93
863In Stock

Mfr. Part #
59170-1-U-00-A

Mouser Part #
934-59170-1-U-00-A

Littelfuse

Magnetic / Reed Switches 59170-1-U-00-A SENS

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Datasheet

863In Stock

S/9.93

S/8.37

S/7.75

S/6.93

View

Min.: 1
Mult.: 1

Sub-Miniature

SPST

20 AT to 25 AT

140 VAC

Black

PCB Mount

Axial

Bulk

Magnetic / Reed Switches MDRR-DT 1156 20-25 U

MDRR-DT-20-25-U
Littelfuse
1: S/22.23
737In Stock

Mfr. Part #
MDRR-DT-20-25-U

Mouser Part #
934-MDRR-DT20-25U

Littelfuse

Magnetic / Reed Switches MDRR-DT 1156 20-25 U

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Datasheet

737In Stock

S/22.23

S/19.00

S/17.79

S/16.08

View

Min.: 1
Mult.: 1

Miniature

SPDT

20 AT to 25 AT

120 VAC

Clear

PCB Mount

SMD/SMT

Bulk

Magnetic / Reed Switches MITI-7 P.I.10-15

MITI-7-10-15
Littelfuse
1: S/8.41
711In Stock

Mfr. Part #
MITI-7-10-15

Mouser Part #
576-MITI-7-10-15

Littelfuse

Magnetic / Reed Switches MITI-7 P.I.10-15

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Datasheet

711In Stock

S/8.41

S/7.08

S/6.58

S/5.88

View

Min.: 1
Mult.: 1

Reed

SPST

10 AT to 15 AT

120 VAC

PCB Mount

Axial

Bulk

Magnetic / Reed Switches MLRR-3 27-33

MLRR-3-27-33
Littelfuse
1: S/5.57
988In Stock

Mfr. Part #
MLRR-3-27-33

Mouser Part #
934-MLRR-327-33

Littelfuse

Magnetic / Reed Switches MLRR-3 27-33

Learn More

Datasheet

988In Stock

S/5.57

S/4.90

S/4.55

S/4.05

View

Min.: 1
Mult.: 1

Miniature

SPST

27 AT to 33 AT

140 VAC

Clear

PCB Mount

Axial

Bulk

Reed Switches

Customer Service Office

Company

Resources

Support

6 AT to 10 AT
10 AT to 15 AT
10 AT to 25 AT
10 AT to 30 AT
12 AT to 18 AT
12 AT to 23 AT
15 AT to 20 AT
15 AT to 25 AT
15 AT to 30 AT
17 AT to 23 AT
17 AT to 28 AT
17 AT to 43 AT
20 AT to 25 AT
20 AT to 30 AT
20 AT to 35 AT
22 AT to 28 AT
22 AT to 33 AT
22 AT to 43 AT
25 AT to 30 AT
27 AT to 33 AT