Parameters |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Type |
Hall Effect Switch |
Terminal Finish |
Matte Tin (Sn) |
Max Power Dissipation |
230mW |
Technology |
Hall Effect |
Voltage - Supply |
1.6V~3.6V |
Function |
Omnipolar, Unipolar Switch |
Body Length or Diameter |
1.6mm |
Body Breadth |
1.2 mm |
Output Type |
Push-Pull |
Max Output Current |
3mA |
Operating Supply Voltage |
3V |
Polarization |
North Pole, South Pole |
Output Current |
3mA |
Max Supply Current |
8μA |
Sensing Method |
Hall Effect |
Test Condition |
25°C |
Sensing Range |
±4.8mT Trip, ±3.8mT Release; 4.8mT Trip, 0.9mT Release |
Hysteresis |
1 mT |
Output Range |
0.2-1.6V |
Magnetic Field Range-Min |
0.9 mT |
Body Height |
0.5mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
Factory Lead Time |
1 Week |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
4-UFDFN Exposed Pad |
Number of Pins |
4 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2014 |
JESD-609 Code |
e3 |
Feature |
Programmable Function |
Part Status |
Active |
AH1903-FA-7 Overview
This Tape & Reel (TR) package protects the magnetic switch from damage. Safety precautions are taken by packaging the magnetic switches in 4-UFDFN Exposed Pad packages. When these switches are working, their maximum current will be 3mA. There is a maximum current limit of 8μA that can be supplied by these switches. In order for the switches to function, they have pins 4. Switches should generally produce 3mA current. When the magnetic switch operates, it could supply 3V voltage.
AH1903-FA-7 Features
Packaging: Tape & Reel (TR)
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Supply Voltage: 1.6V~3.6V
Operating Temperature: -40°C~85°C TA
Mounting Type: Surface Mount
4 Pins
Output Type: Push-Pull
AH1903-FA-7 Applications
There are a lot of Diodes Incorporated AH1903-FA-7 Magnetic Switches applications.
- Medication dispensing control
- Position tracking
- Reading of magnetic data storage media
- Gear shift selectors and driver controls (PRNDL)
- Gear reducer RPM
- Fan speed measurement
- Process speed
- Flow metering
- Rollers
- Speed and RPM (revolutions per minute) sensing