Copyright  ANPEC Electronics Corp.
Rev. A.7 - Sep., 2005
APX9131
www.anpec.com.tw1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Hall Effect Micro Switch IC
Features General Description
The APX9131 integrated circuit is an ultra-sensitive,
pole independent Hall-effect switch with a latched
digital output. 2.5 volt to 3.5 volt operation and a unique
clocking scheme reduce the average operating power
requirements. Either a north or south pole of sufficient
flux will turn the output on; in the absence of a magnetic
field, the output is off. The polarity independence and
minimal power requirement allow this device to be
easily replaced reed switch for superior for signal
conditioning. Advanced CMOS processing is used to
take advantage of low-voltage and low-power
requirements, SOT-23 and TO-92 packages provide an
optimized package for most applications.
Pin Description
Ordering Information
• Micro Power Operation for Battery Applications
• Chopper Stabilized Amplifier
• Independent of North or South Pole Magnet,
Easy for Manufacture
• Small Size Package
• Lead Free Available (RoHS Compliant)
Applications
• Micro Switch
• Handheld Wireless Application Wake Up Switch
• Clamp Shell Type Application Switch
• Magnet Switch in Low Duty Cycle Applications
SOT-23
APX9131
Handling Code
Temp. Range
Package Code
°
Package Code
A: SOT-23 AT : SOT-23 Thin E : TO-92M3
Operating Ambient Temp. Range
I : -40 to 85 C
Handling Code
TR : Tape & Reel
Lead Free Code
L : Lead Free Device Blank : Original Device
Lead Free Code
APX9131 A/AT: X31X X: Date Code
APX
9131
XXXXX
XXXXX - Date CodeAPL9131 E:
VOUT
APX9131
VDD
GND
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate
termination finish; which are fully compliant with RoHS and compatible with both SnPb and lead-free soldiering
operations. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J STD-020C
for MSL classification at lead-free peak reflow temperature.
1 : VDD
2 3
2 : GND
1
3 : VOUT
TO-92M3 Front View