Magnetic, Reed Switches

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of 15

Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Circuit	Operate Range	Release Range	Current - Switching	Voltage - Switching AC	Voltage - Switching DC	Power - Rated	Operate Time	Release Time	Mounting Type	Termination Style	Length - Overall	Size - Body	Height Above Board	Operating Temperature	Capacitance	Current - Carry
MDSM-4R-12-18 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	56,727 In Stock	1 : $2.88000 Cut Tape (CT) 3,000 : $1.39934 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	12 ~ 18AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-12-23 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	2,053 In Stock	1 : $2.88000 Cut Tape (CT) 3,000 : $1.39934 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	12 ~ 23AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-7-13 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	883 In Stock	1 : $2.94000 Cut Tape (CT) 3,000 : $1.39934 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	7 ~ 13AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-17-23 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	3,992 In Stock	1 : $2.60000 Cut Tape (CT) 3,000 : $1.61345 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	17 ~ 23AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-22-33 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	2,931 In Stock	1 : $2.60000 Cut Tape (CT) 3,000 : $1.39934 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	22 ~ 33AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-27-33 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	2,767 In Stock	1 : $2.60000 Cut Tape (CT) 3,000 : $1.39934 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	27 ~ 33AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4B-17-23 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	969 In Stock	1 : $2.51000 Box	MDSM-4	Box	Active	Glass Body Reed	SPST-NO	17 ~ 23AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4B-27-33 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	947 In Stock	1 : $2.51000 Box	MDSM-4	Box	Active	Glass Body Reed	SPST-NO	27 ~ 33AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4B-32-38 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	782 In Stock	1 : $2.51000 Box	MDSM-4	Box	Active	Glass Body Reed	SPST-NO	32 ~ 38AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4B-22-28 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	770 In Stock	1 : $2.51000 Box	MDSM-4	Box	Active	Glass Body Reed	SPST-NO	22 ~ 28AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4B-12-23 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	586 In Stock	1 : $2.51000 Box	MDSM-4	Box	Active	Glass Body Reed	SPST-NO	12 ~ 23AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4B-12-18 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	679 In Stock	1 : $2.83000 Box	MDSM-4	Box	Active	Glass Body Reed	SPST-NO	12 ~ 18AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-22-28 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	158 In Stock	1 : $2.94000 Cut Tape (CT) 3,000 : $1.61345 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	22 ~ 28AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-32-38 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	0 In Stock Check Lead Time	3,000 : $1.62471 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR)	Active	Glass Body Reed	SPST-NO	32 ~ 38AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)
MDSM-4R-17-28 SWITCH REED SPST-NO 350MA 140V Littelfuse Inc.	0 In Stock Check Lead Time	1 : $2.60000 Cut Tape (CT) 3,000 : $1.39934 Tape & Reel (TR)	MDSM-4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Glass Body Reed	SPST-NO	17 ~ 28AT	-	350mA (AC), 500mA (DC)	140 V	200 V	10W	0.6 ms	0.2 ms	Surface Mount	Gull Wing	0.760" (19.30mm)	0.090" Dia x 0.600" L (2.28mm x 15.24mm)	0.112" (2.85mm)	-40°C ~ 125°C	0.2 pF	1.2A (DC)

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Magnetic reed switches are devices consisting of a pair of ferromagnetic flexible metal reed contacts in a hermetically sealed glass, magneshere, or other molded body and are operated by an applied magnetic field. The contacts are normally open, closing when a magnetic field is present, or closed and open when a magnetic field is applied. The switch may be actuated by an electromagnetic coil or permanent magnet placed near the switch. When the magnetic field is removed, the reeds return to their original position. Contact forms include SPDT and SPST.

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