FHS 40-P KIT 8-1P LEM USA Inc, FHS 40-P KIT 8-1P Datasheet - Page 11

• Manufacturer Part Number: FHS 40-P KIT 8-1P
• Description: FHS 40 PCB KIT 5/16A
• Manufacturer: LEM USA Inc

Specifications of FHS 40-P KIT 8-1P

• Sensor Type: Current Sensor
• Sensing Range: ±16A
• Interface: Analog
• Sensitivity: 125.6 mV/A
• Voltage - Supply: 4.75 V ~ 5.25 V
• Embedded: No
• Utilized Ic / Part: FHS 40
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 398-1070

Application information
Single track on PCB
The main pratical configurations will now be reviewed and their main features highlighted.
The use of Minisens to measure a current flowing in a track provides the following advanges:
100727/10
●
●
●
●
Isolation is guaranteed by PCB design. If the primary track is placed on the opposite (bottom) side of the PCB,
the isolation can be very high
stable and reproducible sensitivity
inexpensive
large input currents (up to about 100 A).
Figure 11: Sensitivity versus track width and versus distance between the track and the Minisens sensing
elements
Primary Conductor (Track)
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
Figure 10: Principle of Minisens used to measure current in a PCB track
B
120
100
80
60
40
20
0
1
1.235
PCB
Sensitivity function of track to magnetic sensor distance
nominal distance for
1.5
a top side track
track axis to sensor distance (mm)
(track 70 microns thick)
2
Ip
nominal distance for a
bottom side track with
1.6 mm PCB
1 mm wide track
2 mm wide track
3 mm wide track
1
2.5
B
PCB
PCB
2.905
3
Primary Conductor
(Track)
B
3.5
FHS 40-P/SP600
0 - 100A
www.lem.com
Page 11/18