THROUGH HOLE-STRAIGHT Magnetic Reed Switches 120

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Part RoHS Manufacturer Switch Type Mounting Feature Switch Function Maximum Pull In AC Maximum Rating R Load (Contact) Minimum Drop-out Value Minimum Pull In Electrical Life Packing Method Body Length/Diameter Body Width Sealing Body Height DC Maximum Rating R Load (Contact) Maximum Operating Temperature Maximum AC Contact Current Minimum Operating Temperature Nominal Resonant Frequency Terminal Finish Maximum DC Contact Current Termination Type Manufacturer Series Maximum DC Contact Voltage Additional Features Maximum AC Contact Voltage JESD-609 Code

KSK-1C90F-2025

Standex-Meder Electronics

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

25 AT

.5A@175VAC

20 AT

2.54 mm

14 mm

.5A@175VDC

130 Cel

.5 A

-40 Cel

.5 A

SOLDER

KSK-1C90F-2025

175 V

175 V

KSK-1C90F-1015

Meder Electronic Ag

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

15 AT

.5A@175VAC

10 AT

2.54 mm

14 mm

.5A@175VDC

130 Cel

.5 A

-40 Cel

.5 A

SOLDER

KSK-1C90F-1015

175 V

175 V

KSK-1C90F-1520

Standex-Meder Electronics

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

20 AT

.5A@175VAC

15 AT

2.54 mm

14 mm

.5A@175VDC

130 Cel

.5 A

-40 Cel

.5 A

SOLDER

KSK-1C90F-1520

175 V

175 V

KSK-1A35-1520

Standex-Meder Electronics

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

20 AT

1A@200VAC

15 AT

2.2 mm

10.5 mm

1A@200VDC

130 Cel

1 A

-40 Cel

1 A

SOLDER

KSK-1A35-1520

200 V

200 V

MDCG-4-17-23

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

38 AT

.35A@140VAC

12 AT

2.28 mm

15.24 mm

.5A@200VDC

125 Cel

.35 A

-40 Cel

3.9 kHz

TIN

.5 A

SOLDER

200 V

140 V

e3

PPS24

Comus International

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

.1A@24VAC

14.8 mm

3.2 inch

HERMETICALLY SEALED

4.2 mm

70 Cel

.1 A

-20 Cel

SOLDER

24 V

MDRR-DT-15-30-U

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

30 AT

0.18A@120VAC

15 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

DRS-DTH-50-80

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

80 AT

0.35A@350VAC

50 AT

BULK

5.54 mm

HERMETICALLY SEALED

39.67 mm

0.5A@500VDC

125 Cel

.35 A

-20 Cel

2.75 kHz

.5 A

SOLDER

500 V

350 V

DRS-50-42-83

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

83 AT

2.1A@280VAC

42 AT

BULK

5.25 mm

HERMETICALLY SEALED

50.8 mm

3A@400VDC

125 Cel

2.1 A

-40 Cel

.85 kHz

Tin (Sn)

3 A

SOLDER

400 V

280 V

e3

59045-1-S-00-0

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

20 AT

.35@140VAC

15 AT

BOX; BULK

17.78 mm

3.3 inch

HERMETICALLY SEALED

4.32 mm

.5A@200VDC

105 Cel

.35 A

-40 Cel

.5 A

SOLDER

200 V

140 V

2119401015

Meder Electronic Ag

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

15 AT

.5A@175VAC

10 AT

2.54 mm

14 mm

.5A@175VDC

130 Cel

.5 A

-40 Cel

.5 A

SOLDER

2119401015

175 V

175 V

59045-1-T-00-0

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

25 AT

.35@140VAC

20 AT

BOX; BULK

17.78 mm

3.3 inch

HERMETICALLY SEALED

4.32 mm

.5A@200VDC

105 Cel

.35 A

-40 Cel

.5 A

SOLDER

200 V

140 V

MDRR-DT-15-30-F

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

30 AT

0.18A@120VAC

15 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

MDSR-4-12-23

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

23 AT

12 AT

2.28 mm

15.24 mm

.5A@200VDC

125 Cel

-40 Cel

3.9 kHz

.5 A

SOLDER

200 V

MDCG-4-12-33

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

33 AT

.35@140VAC

12 AT

BULK

2.28 mm

HERMETICALLY SEALED

15.24 mm

.5A@200VDC

125 Cel

.35 A

-40 Cel

3.9 kHz

.5 A

SOLDER

200 V

STANDARD: CUL; UL

140 V

MDSR-7-10-25

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

25 AT

.35A@140VAC

10 AT

1.8 mm

HERMETICALLY SEALED

12.7 mm

.5A@200VDC

125 Cel

.35 A

-40 Cel

5.5 kHz

TIN

.5 A

SOLDER

200 V

140 V

e3

MDRR-DT-10-15-F

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

15 AT

0.18A@120VAC

10 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

MDRR-DT-25-30-F

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

30 AT

0.18A@120VAC

25 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

MDSR-7

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

25 AT

10 AT

1.8 mm

HERMETICALLY SEALED

12.7 mm

.5A@200VDC

125 Cel

-40 Cel

5.5 kHz

Tin (Sn)

.5 A

SOLDER

MDSR-7

200 V

e3

MLRR-4-17-23

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

23 AT

.7A@140VAC

17 AT

BULK

2.66 mm

HERMETICALLY SEALED

15.24 mm

1A@200VDC

125 Cel

.7 A

-40 Cel

6.25 kHz

TIN

1 A

SOLDER

200 V

140 V

e3

MLRR-3

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

38 AT

17 AT

2.66 mm

HERMETICALLY SEALED

15.24 mm

1A@200VDC

125 Cel

-40 Cel

6.25 kHz

1 A

SOLDER

MLRR-3

200 V

MDRR-DT-15-25-F

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

25 AT

0.18A@120VAC

15 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

Tin (Sn)

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

e3

MITI-3V1-6-15

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

15 AT

6 AT

BULK

1.8 mm

HERMETICALLY SEALED

7 mm

0.25A@170VDC

125 Cel

-40 Cel

18 kHz

.25 A

SOLDER

170 V

STANDARDS: ATEX; CUL; DEMKO; UL

FLEX-14-20-25

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

25 AT

.35A@140VAC

20 AT

2.28 mm

HERMETICALLY SEALED

14 mm

.5A@200VDC

125 Cel

.35 A

-40 Cel

5.2 kHz

TIN

.5 A

SOLDER

200 V

140 V

e3

MDRR-DT-20-35-U

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

35 AT

0.18A@120VAC

20 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

TIN

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

e3

MDRR-DT

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

30 AT

15 AT

2.54 mm

HERMETICALLY SEALED

14.73 mm

.25A@175VDC

125 Cel

-40 Cel

11 kHz

.25 A

SOLDER

MDRR-DT

175 V

MDRR-DT-10-20-U

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

CHANGE-OVER

20 AT

0.18A@120VAC

10 AT

BULK

2.54 mm

14.73 mm

0.25A@175VDC

125 Cel

.18 A

-40 Cel

11 kHz

TIN

.25 A

SOLDER

175 V

STANDARDS: CUL; UL

120 V

e3

FLEX-14

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

30 AT

5 AT

10 AT

2.28 mm

HERMETICALLY SEALED

14 mm

.5A@200VDC

125 Cel

-40 Cel

5.2 kHz

.5 A

SOLDER

FLEX-14

200 V

DRT-DTH

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

80 AT

50 AT

5.33 mm

HERMETICALLY SEALED

39.67 mm

1.5A@500VDC

125 Cel

-20 Cel

2.75 kHz

1.5 A

SOLDER

500 V

HA15-2-17-23

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

23 AT

.3A@265VAC

5 AT

17 AT

BULK

2.28 mm

HERMETICALLY SEALED

15.24 mm

.4A@200VDC

125 Cel

.3 A

-20 Cel

4 kHz

.4 A

SOLDER

200 V

STANDARDS: CUL; UL

265 V

DRR-129

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

83 AT

42 AT

5.25 mm

HERMETICALLY SEALED

50.8 mm

3A@400VDC

125 Cel

-40 Cel

.85 kHz

3 A

SOLDER

400 V

240 V

HA15-2-22-28

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

28 AT

.35A@265VAC

5 AT

22 AT

BULK

2.28 mm

HERMETICALLY SEALED

15.24 mm

0.5A@200VDC

125 Cel

.35 A

-20 Cel

4 kHz

.5 A

SOLDER

200 V

STANDARDS: CUL; UL

265 V

DRR-DTH

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPDT

80 AT

50 AT

5.33 mm

HERMETICALLY SEALED

39.67 mm

.5A@500VDC

125 Cel

-20 Cel

2.75 kHz

.5 A

SOLDER

500 V

FLEX-14-10-15

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

15 AT

.35A@140VAC

10 AT

2.28 mm

HERMETICALLY SEALED

14 mm

.5A@200VDC

125 Cel

.35 A

-40 Cel

5.2 kHz

TIN

.5 A

SOLDER

200 V

140 V

e3

MARR-5

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

38 AT

17 AT

2.66 mm

HERMETICALLY SEALED

19.69 mm

.5A@1000VDC

125 Cel

-75 Cel

3.2 kHz

.5 A

SOLDER

1000 V

MITI-3V1-6-10

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

10 AT

6 AT

BULK

1.8 mm

HERMETICALLY SEALED

7 mm

0.25A@170VDC

125 Cel

-40 Cel

18 kHz

.25 A

SOLDER

170 V

HA15-2-27-33

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

33 AT

.35A@265VAC

5 AT

27 AT

BULK

2.28 mm

HERMETICALLY SEALED

15.24 mm

0.5A@200VDC

125 Cel

.35 A

-20 Cel

4 kHz

.5 A

SOLDER

200 V

STANDARDS: CUL; UL

265 V

MDSR-7-10-15

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

15 AT

10 AT

1.8 mm

HERMETICALLY SEALED

12.7 mm

.5A@200VDC

125 Cel

-40 Cel

5.5 kHz

TIN

.5 A

SOLDER

MDSR-7

200 V

e3

HA15-2

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

23 AT

.35A@265VAC

17 AT

2.28 mm

HERMETICALLY SEALED

15.24 mm

.5A@200VDC

125 Cel

.35 A

-20 Cel

4 kHz

.5 A

SOLDER

HA15-2

200 V

OTHER PULL-IN RANGES ARE ALSO AVAILABLE

265 V

MDSR-10

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

25 AT

10 AT

1.8 mm

HERMETICALLY SEALED

10.16 mm

.5A@200VDC

125 Cel

-40 Cel

8.5 kHz

.5 A

SOLDER

MDSR-10

200 V

MLRR-4

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

38 AT

17 AT

2.54 mm

HERMETICALLY SEALED

15.24 mm

1A@200VDC

125 Cel

-40 Cel

6.25 kHz

1 A

SOLDER

MLRR-4

200 V

MRPR-20-27-38

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

38 AT

1.1A@265VDC

27 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

MRPR-20-17-43

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

43 AT

1.1A@265VDC

17 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

MRPR-20-22-33

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

33 AT

1.1A@265VDC

22 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

MRPR-20-27-33

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

33 AT

1.1A@265VDC

27 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

MRPR-20-17-23

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

23 AT

1.1A@265VDC

17 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

MRPR-20-17-28

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

28 AT

1.1A@265VDC

17 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

MRPR-20-32-38

Littelfuse

DRY REED SWITCH

THROUGH HOLE-STRAIGHT

SPST

38 AT

1.1A@265VDC

32 AT

BULK

2.84 mm

HERMETICALLY SEALED

20.32 mm

1.5A@250VDC

125 Cel

1.1 A

-20 Cel

2.1 kHz

1.5 A

SOLDER

250 V

STANDARDS: CUL; UL

265 V

Magnetic Reed Switches

Magnetic reed switches are electrical switches that use a magnet to activate a pair of reed switches, which are thin, ferromagnetic metal blades that are hermetically sealed in a glass envelope. They are commonly used in a variety of applications, such as security systems, automotive electronics, and medical devices.

Magnetic reed switches consist of two reed switches that are positioned in close proximity to each other. When a magnetic field is applied to the switch, the reed switches attract each other, completing the electrical circuit. When the magnetic field is removed, the reed switches return to their original position, breaking the circuit.

Magnetic reed switches offer several advantages over other types of switches. They are highly reliable and have a long operational life, as they have no moving parts that can wear out or break down over time. They are also easy to install and operate, and they can be used in a wide range of applications.