SM351LT Honeywell Hall Effect Sensor

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Product Details:

Product	Description
Brand	Honeywell
Model No.	SM351LT
Operating Temperature	– 40 C to + 85 C
Mounting Style	SMD/SMT
Output Voltage	0.03 V
Supply Voltage:	5 V
Unit Weight	63 mg
Operating Supply Current	1 mA
Maximum Output Current	100 uA
Operating Point Min/Max	3 G, 11 G

Above specifications mentioned are for quick reference only. Actual technical details has to be obtained from below catalog.

Description

SM351LT Honeywell Hall Effect Sensor , Honeywell’s Nanopower Series Magnetoresistive (MR) Sensor ICs are ultra-sensitive devices designed to accommodate a wide range of applications with large air gaps, small magnetic fields, and low power requirements. SM351LT Hall Effect Sensor ICs respond to either a North or South pole applied in a direction parallel to the sensor. They do not require the magnet polarity to be identified, simplifying installation and potentially reducing system cost. These sensor ICs use a very low average current consumption and a push-pull output that does not require a pull-up resistor. The sensor ICs can operate from a supply voltage as low as 1.65 V, promoting energy efficiency.

Key Features
• High sensitivity: 7 Gauss type., 11 Gauss max. (SM351LT); 14 G typ., 20 Gauss max. (SM353LT)
• Nanopower: Average current of 360 nA type. (SM351LT) and 310 nA type. (SM353LT)
• Supply voltage range: 1.65 Vdc to 5.5 Vdc; simplifies design-in
• Omnipolar sensing: Activates with either pole from a magnet
• Temperature range: -40 °C to 85 °C [-40 °F to 185 °F]
• Push-pull output: Does not require an external pull-up resistor
• Non-chopper stabilized design
• RoHS-compliant materials: Meets Directive 2002/95/EC
• Package: SOT-23

Potential Applications
Industrial
• Mobile equipment (i.e., handheld computing equipment, scanners)
• Water, electric, and gas utility meters
• Building access control; reed switch replacement for battery-operated security systems
• Industrial smoke detectors

MEDICAL
• Exercise equipment
• Infusion pumps
• Drawer position sensing (e.g., medical cabinets)
• Hospital beds

WHITE GOODS
• Lid, door, and drawer position detection
• Fluid flow

MEDIUM-SIZED CONSUMER ELECTRONICS
• Battery-optimization position sensor

The Nanopower Series is available in two magnetic sensitivities to accommodate a variety of application needs:
• SM351LT: For applications requiring ultra-high magnetic sensitivity (7 G typical operate, 11 G maximum operate) and a very low current draw (360 nA typical).