Home > Switches (Solid State) >

hall effect switch ALLEGRO A3212EUA-T designed for handheld electronics and low voltage applications

Product Categories

Analog and Digital Output [295]
Pressure Sensors, Transducers [382]
Sensor, Transducer Amplifiers [7]
Specialized Sensors [33]
Thermostats - Solid State [7]
Accelerometers [156]
Float, Level Sensors [42]
Force Sensors, Load Cells [6]
Humidity, Moisture Sensors [120]
Particle, Dust Sensors [9]
Photoresistors [39]
Angle, Linear Position Measuring [417]
Sensor, Transducer Accessories [5]
NTC Thermistors [809]
Ultrasonic Receivers, Transmitters [44]
Current Sensors [469]
Ambient Light, IR, UV Sensors [139]
Proximity Sensors [56]
Encoders [6]
Strain Gauges [5]
Multifunction [55]
Flow Switch [12]
Pressure Transmitters [1]
Gas Sensor [309]
PTC Thermistors [44]
Particulate Matter (PM) Transmitters [13]
IrDA Transceiver Modules [6]
Distance Measuring [11]
Photo Detectors - Remote Receiver [60]
Sensor Cable Accessories [1]
Linear, Compass (ICs) [289]
Position, Proximity, Speed (Modules) [72]
Multi Purpose Magnets [2]
Optical Motion Sensors [70]
Thermostats - Mechanical [48]
Gyroscopes [5]
Camera Modules [8]
IMUs (Inertial Measurement Units) [18]
Photo Detectors - Logic Output [4]
Switches (Solid State) [703]
Photointerrupters - Slot Type - Logic Output [26]
Photodiodes [103]
Image Sensors, Camera [18]
Inclinometers (ICs) [6]
Vibration Sensors [77]
RTD (Resistance Temperature Detector) [83]
Photointerrupters - Slot Type - Transistor Output [71]
Phototransistors [67]
Reflective - Analog Output [67]
Reflective - Logic Output [14]
Thermocouples, Temperature Probes [32]

Changsha Purple Horn E-Commerce Co., Ltd.

Trust Seal

Verified Supplier

Credit Check

Supplier Assessment

Contact Now

hall effect switch ALLEGRO A3212EUA-T designed for handheld electronics and low voltage applications

Voltage - Supply : 2.5V~3.5V

Description : SIP-3 Switches (Solid State) RoHS

Mfr. Part # : A3212EUA-T

Model Number : A3212EUA-T

Package : SIP-3

Contact Now

Product Overview

The A3211 and A3212 are ultrasensitive, pole-independent Hall-effect switches with latched digital output, designed for low-power applications. They operate from 2.5 to 3.5 V, significantly reducing power consumption to less than 15 W. These devices are ideal for battery-operated, hand-held equipment like cellular phones, pagers, and palmtop computers, offering superior reliability and ease of manufacturing compared to reed switches. Chopper stabilization ensures improved stability by reducing offset voltage caused by overmolding, temperature, and thermal stress.

Product Attributes

Brand: Allegro MicroSystems
Certifications: AEC-Q100 automotive qualified (for some variants)
Material: Advanced CMOS processing
Packages: DFN (EH, EL), SOT23W (LH), SIP (UA)
Lead Finish: 100% matte-tin-plated leadframes (Pb-free)

Technical Specifications

Part Number	Package	Ambient Temperature (C)	State in Magnetic Field	Packing	Notes
A3211EEHLTT	DFN (2 mm 3 mm, 0.75 mm)	40 to 85	Off	3000 pieces per reel	Variant no longer in production. Not for new design.
A3211EELLTT	DFN (2 mm 2 mm, 0.50 mm)	40 to 85	Off	3000 pieces per reel	Variant in production, LAST TIME BUY. Restricted to existing applications.
A3211ELHLTT	SOT23W (3-pin SMD)	40 to 85	Off	3000 pieces per reel
A3211ELHLXT	SOT23W (3-pin SMD)	40 to 85	Off	10000 pieces per 13-in. reel
A3212EEHLTT	DFN (2 mm 3 mm, 0.75 mm)	40 to 85	On	3000 pieces per reel	Variant no longer in production. Not for new design.
A3212EELLTT	DFN (2 mm 2 mm, 0.50 mm)	40 to 85	On	3000 pieces per reel	Variant in production, LAST TIME BUY. Restricted to existing applications.
A3212ELHLTT	SOT23W (3-pin SMD)	40 to 85	On	3000 pieces per reel
A3212ELHLXT	SOT23W (3-pin SMD)	40 to 85	On	10000 pieces per 13-in. reel
A3212EUAT	SIP-3 (through hole)	40 to 85	On	500 pieces per bulk bag
A3212LLHLTT	SOT23W (3-pin SMD)	40 to 150	On	3000 pieces per reel
A3212LLHLXT	SOT23W (3-pin SMD)	40 to 150	On	10000 pieces per 13-in. reel
A3212LUAT	SIP-3 (through hole)	40 to 150	On	500 pieces per bulk bag

Characteristic	Symbol	Test Conditions	Min.	Typ.*	Max.	Units
Supply Voltage Range	VDD	Operating	2.5	2.75	3.5	V
Output Leakage Current	IOFF	VOUT = 3.5 V, Output off		<1.0	1.0	A
Output On Voltage	VOUT	IOUT = 1 mA, VDD = 2.75 V		100	300	mV
Awake Time	tawake			45	90	s
Period	tperiod			45	90	ms
Duty Cycle	d.c.			0.1		%
Chopping Frequency	fC			340		kHz
Supply Current (Chip awake)	IDD(EN)	Chip awake (enabled)			2.0	mA
Supply Current (Chip asleep)	IDD(DIS)	Chip asleep (disabled)			8.0	A
Average Supply Current	IDD(AVG)	VDD = 2.75 V		5.1	10	A
Average Supply Current	IDD(AVG)	VDD = 3.5 V		6.7	10	A

Characteristic	Symbol	Test Conditions	Min.	Typ.	Max.	Units
Operate Points (South Pole)	BOPS	Branded side; B > BOP, VOUT = Low (Output On)		37	55	G
Operate Points (North Pole)	BOPN	Branded side; B > BOP, VOUT = Low (Output On)	55	40		G
Release Points (South Pole)	BRPS	Branded side; B < BRP, VOUT = High (Output Off)	10	31		G
Release Points (North Pole)	BRPN	Branded side; B < BRP, VOUT = High (Output Off)		34	10	G
Hysteresis	BHYS	\|BOPx - BRPx\|		5.9		G
Operate Points (South Pole)	BOPS	Range E: TA = 40C to 85C		37	55	G
		Range L: TA = 40C to 150C		37	65	G

Operate Points (North Pole)	BOPN	Range E: TA = 40C to 85C	55	40		G
		Range L: TA = 40C to 150C	65	40		G

Release Points (South Pole)	BRPS	Range E: TA = 40C to 85C	10	31		G
		Range L: TA = 40C to 150C	10	31		G

Release Points (North Pole)	BRPN	Range E: TA = 40C to 85C		34	10	G
		Range L: TA = 40C to 150C		34	10	G

Hysteresis	BHYS	Range E: TA = 40C to 85C		5.9		G
		Range L: TA = 40C to 150C		5.9		G

2410010303_ALLEGRO-A3212EUA-T_C139821.pdf

Quality hall effect switch ALLEGRO A3212EUA-T designed for handheld electronics and low voltage applications for sale

hall effect switch ALLEGRO A3212EUA-T designed for handheld electronics and low voltage applications Images

Inquiry Cart 0

Send your message to this supplier


*From:	Your email address is incorrect!
*To:	Changsha Purple Horn E-Commerce Co., Ltd.
*Subject:	Subject is empty!
*Message:	For the best results, we recommend including the following details: -Self introduction -Required specifications -Inquire about price/MOQ Characters Remaining: (0/3000) Please enter 20 to 3000 characters to contact this supplier!