Switches (Solid State)

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Function	Technology	Polarization	Sensing Range	Test Condition	Voltage - Supply	Current - Supply (Max)	Current - Output (Max)	Output Type	Features	Operating Temperature	Grade	Qualification	Mounting Type	Supplier Device Package
RR121-2A32-364 MAGNETIC SWITCH UNIPOLAR 4LGA Coto Technology	2,646	-	RFQ	Datasheet	RedRock™ 121	4-XFLGA	Tape & Reel (TR)	Obsolete	Unipolar Switch	Magnetic, TMR (Tunneling Magnetoresistive)	North Pole, South Pole	0.9mT Trip, 0.5mT Release	-40°C ~ 125°C	2.7V ~ 3.6V	700nA	10mA	Digital	-	-40°C ~ 85°C	-	-	Surface Mount	4-LGA (1.4x1.4)
RR121-3C73-311 MAG SWITCH LATCH/BIPLR SOT23-3 Coto Technology	2,137	-	RFQ	Datasheet	RedRock™ 121	TO-236-3, SC-59, SOT-23-3	Tape & Reel (TR)	Obsolete	Latch, Bipolar Switch	Magnetic, TMR (Tunneling Magnetoresistive)	North Pole, South Pole	1mT Trip, -1mT Release	25°C	2.7V ~ 3.6V	13µA	10mA	Digital	-	-40°C ~ 125°C	-	-	Surface Mount	SOT-23-3
RR121-1E73-311 MAGNETIC SWITCH OMNIPOL SOT23-3 Coto Technology	1,750	-	RFQ	Datasheet	RedRock™ 121	TO-236-3, SC-59, SOT-23-3	Tape & Reel (TR)	Obsolete	Omnipolar Switch	Magnetic, TMR (Tunneling Magnetoresistive)	North Pole, South Pole	1.5mT Trip, 1mT Release	-40°C ~ 125°C	2.7V ~ 3.6V	13µA	10mA	Digital	-	-40°C ~ 125°C	-	-	Surface Mount	SOT-23-3
RR121-1B93-312 MAGNETIC SWITCH OMNIPOLAR 4LGA Coto Technology	1,340	-	RFQ	Datasheet	RedRock™ 121	4-XFLGA	Tape & Reel (TR)	Obsolete	Omnipolar Switch	Magnetic, TMR (Tunneling Magnetoresistive)	North Pole, South Pole	3mT Trip, 2mT Release	25°C	2.7V ~ 3.6V	-	10mA	Digital	-	-40°C ~ 125°C	-	-	Surface Mount	4-LGA (1.4x1.4)
OHN3177U MAGNETIC SWITCH LATCH TO92-3 TT Electronics/Optek Technology	4,450	-	RFQ	Datasheet	OHN3100	3-SSIP	Bulk	Obsolete	Latch	Hall Effect	South Pole	1.5mT Trip, -1.5mT Release	-20°C ~ 85°C	4.5V ~ 24V	7mA	25mA	Open Collector	-	-20°C ~ 85°C (TA)	-	-	Through Hole	TO-92-3
A1156LLHLT-T MAGNETIC SWITCH UNIPOLAR SOT23W Allegro MicroSystems	1,229	-	RFQ	Datasheet	-	SOT-23W	Tape & Reel (TR)	Active	Unipolar Switch	Hall Effect	South Pole	6mT Trip, 1mT Release	-40°C ~ 150°C	3V ~ 24V	17mA	-	Current Source	-	-40°C ~ 150°C (TA)	-	-	Surface Mount	SOT-23W
MRUS72S AMR SWITCH SENSOR Murata Electronics	3,798	-	RFQ	Datasheet	-	4-SMD, Flat Leads	Cut Tape (CT)	Obsolete	Unipolar Switch	Magnetoresistive	South Pole	2.5mT Trip, 0.5mT Release	25°C	2.4V ~ 3.6V	2.5mA	-	Push-Pull	-	-40°C ~ 85°C (TA)	-	-	Surface Mount	4-Mini FLP
MRUS72X AMR SWITCH SENSOR Murata Electronics	2,300	-	RFQ	Datasheet	-	4-SMD, Flat Leads	Cut Tape (CT)	Obsolete	Unipolar Switch	Magnetoresistive	South Pole	1.5mT Trip, 0mT Release	25°C	2.4V ~ 3.6V	2.5mA	-	Push-Pull	-	-40°C ~ 85°C (TA)	-	-	Surface Mount	4-Mini FLP
A3211EELLT-T MAGNETIC SWITCH OMNIPOLAR 3DFN Allegro MicroSystems	3,109	-	RFQ	Datasheet	-	3-PowerXDFN	Tape & Reel (TR)	Obsolete	Omnipolar Switch	Hall Effect	North Pole, South Pole	±5.5mT Trip, ±1mT Release	-40°C ~ 85°C	2.5V ~ 3.5V	2mA	1mA	Open Drain	-	-40°C ~ 85°C (TA)	-	-	Surface Mount	3-DFN (2x2)
SS41D MAGNETIC SWITCH BIPOLAR RADIAL Honeywell Sensing and Productivity Solutions	3,644	-	RFQ	Datasheet	SS41	3-SIP	Bulk	Obsolete	Bipolar Switch	Hall Effect	North Pole, South Pole	34mT Trip, -34mT Release	25°C	4.5V ~ 24V	15mA	20mA	Open Drain	-	-40°C ~ 150°C (TA)	-	-	Through Hole	Radial Lead
TLE4941CBAMA2 SPEED SENS Infineon Technologies	3,895	-	RFQ	Datasheet	-	2-SIP, SSO-2-53	Tape & Box (TB)	Active	Latch	Hall Effect	North Pole, South Pole	-	25°C	4.5V ~ 20V	16.8mA	-	Current Source	Temperature Compensated	-40°C ~ 125°C (TJ)	Automotive	AEC-Q100	Through Hole	PG-SSO-2-53
TLE4943CXAMA1 MAG SWITCH SPECIAL PURP SPEED Infineon Technologies	3,545	-	RFQ	Datasheet	TLE	-	Tape & Box (TB)	Active	Special Purpose	Hall Effect	-	-	-	-	-	-	-	-	-	-	-	-	-
A3241LLHLT-T MAGNETIC SWITCH UNIPOLAR SOT23W Allegro MicroSystems	1,037	-	RFQ	Datasheet	-	SOT-23W	Tape & Reel (TR)	Obsolete	Unipolar Switch	Hall Effect	South Pole	13.5mT Trip, 4mT Release	-40°C ~ 150°C	3.6V ~ 24V	3.5mA	60mA	Open Drain	-	-40°C ~ 150°C (TA)	-	-	Surface Mount	SOT-23W
A3242LLHLT-T MAGNETIC SWITCH UNIPOLAR SOT23W Allegro MicroSystems	1,553	-	RFQ	Datasheet	-	SOT-23W	Tape & Reel (TR)	Obsolete	Unipolar Switch	Hall Effect	South Pole	20mT Trip, 11mT Release	-40°C ~ 150°C	3.6V ~ 24V	3.5mA	60mA	Open Drain	-	-40°C ~ 150°C (TA)	-	-	Surface Mount	SOT-23W
A3282LLHLT-T MAGNETIC SWITCH LATCH SOT23W Allegro MicroSystems	3,652	-	RFQ	Datasheet	-	SOT-23W	Tape & Reel (TR)	Obsolete	Latch	Hall Effect	South Pole	15mT Trip, -15mT Release	-40°C ~ 150°C	3.6V ~ 24V	3.5mA	60mA	Open Drain	-	-40°C ~ 150°C (TA)	-	-	Surface Mount	SOT-23W
MRUS74X AMR SWITCH SENSOR Murata Electronics	4,604	-	RFQ	Datasheet	-	4-SMD, Flat Leads	Cut Tape (CT)	Obsolete	Unipolar Switch	Magnetoresistive	South Pole	1.5mT Trip, 0mT Release	25°C	2V ~ 3.6V	2.5mA	-	Push-Pull	-	-40°C ~ 105°C (TA)	-	-	Surface Mount	4-Mini FLP
SS443F MAGNETIC SWITCH SEALED Honeywell Sensing and Productivity Solutions	3,065	-	RFQ	Datasheet	*	-	Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
MRUS73C AMR SWITCH SENSOR Murata Electronics	4,513	-	RFQ	Datasheet	-	4-SMD, Flat Leads	Cut Tape (CT)	Obsolete	Unipolar Switch, Dual	Magnetoresistive	South Pole	2.8mT Trip, 1.4mT Release; 3mT Trip, 1.6mT Release	25°C	2.4V ~ 3.8V	3mA	-	Push-Pull	Temperature Compensated	-40°C ~ 85°C (TA)	-	-	Surface Mount	4-Mini FLP
MRUS74S AMR SWITCH SENSOR Murata Electronics	4,369	-	RFQ	Datasheet	-	4-SMD, Flat Leads	Cut Tape (CT)	Obsolete	Unipolar Switch	Magnetoresistive	South Pole	2.5mT Trip, 1mT Release	25°C	2V ~ 3.6V	2.5mA	-	Push-Pull	-	-40°C ~ 105°C (TA)	-	-	Surface Mount	4-Mini FLP
A3211EEHLT-T MAG SWITCH OMNIPOLAR 6MLP/DFN Allegro MicroSystems	3,305	-	RFQ	Datasheet	-	6-PowerWFDFN	Tape & Reel (TR)	Obsolete	Omnipolar Switch	Hall Effect	North Pole, South Pole	±5.5mT Trip, ±1mT Release	-40°C ~ 85°C	2.5V ~ 3.5V	2mA	1mA	Open Drain	-	-40°C ~ 85°C (TA)	-	-	Surface Mount	6-MLP/DFN (2x3)

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Switches (Solid State) FAQ

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Compare the manufacturer part number, electrical specifications, package, operating conditions and application requirements. The product datasheet should be used to confirm technical suitability.

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Yes. Send the exact part number, manufacturer and required quantity. Winsun (HK) Electronics can assist with availability checks, quotation support and sourcing options based on your requirement.

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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

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