3～60A (L18P family)

Suitable for lower power of general purpose inverter

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Product Features

Lower cost, Compact
6 series with 10 models and 5 derivations for a total of 60 models
Wide electrical current range ( The saturation current is 3 times the primary norminal current / S05 is 1.5 times/ S12 is 1.25 times)
PCB mounting design
Only 17*17.5mm as surface occupied on the PCB

Main Applications

Linear Open Loop current sensors with 6 series with 10 models and 5 derivations for a total of 60 models.

1 series 10 types ; Corresponding Primary nominal current 3-60 A
Series designed with compact pin layout and common board layout.
Each series has common casting bobbin dimension with permalloy magnetic core.

Series	Symbol	L18Pxxx D15	L18Pxxx D15-OP	L18Pxxx D15AHV	L18Pxxx S05	L18Pxxx S05R	L18Pxxx S12
Power supply voltage	Vcc	±15V			+5V	+5V	+12V
Rated output voltage	Vo	4V±0.040V (xxx:003-030)			Vof +1.5V±0.045V	Vof +0.625V±0.045V	Vof +1.5V±0.045V
Offset voltage	Vof	0V±0.040V (3～30A)			Vcc/2 ±0.035V	2.5V ±0.035V	2.5V ±0.035V
Saturation current	Ifmax	≧ If * 3			≧ If * 1.5	≧ If * 3	≧ If * 1.25
Structure		Same structure / Same pattern layout
Remarks		Base model EOL announced	Succession model	Anti-Sulfurated (Resistor:General purpose) dV/dt improvement type	Vof ratiometric	Vof fixed	Vof fixed
Spec sheet

Note ; Saturation current of L18P series indicates an output with a greater than ±10% deviation from the theoretical output value.

<Q&A>

Can the current flow be more than the saturation current value?

It will not immediately brake even if the flow current is more then the saturation current value.

Can I use a coil / AC ?

Yes. However using high frequency generates heat by iron loss so must be checked on the actually machine.

For creepage distance / clearance distance between primary and secondary.

Coil type ; Creepage distance and clearance distance is minimum 9.2mm.
Busbar type ; Creepage distance is minimum 9.2mm, and clearance distance is minimum 7.9mm.

Failure rate / MTBF of L18P***D15

Failure rate : 496.4FIT/MTBF : 2014.4 khrs
(Calculation conditions : MIL-HDBK-217F Method of number of components, Environmental Conditions : GB)

Output Impedance

Output circuit of L18P***D15-OP (as an example )is as followed. 51Ω resistor are connected in series to the output terminal of the internal product, the output voltage will slightly change by an external load resistor. Product specifications are the charactersics of the load resistance of 10kΩ

L18P family

General characteristics

Open loop, Voltage-output type
Bipolar power supply : ±15V, Rated output voltage : 4V, Offset voltage : 0V
*S05 series(Unipolar power supply: +5V, Rated output voltage : Vof +1.5V, Offset voltage : Vcc/2 (ratiometric))
*S05R series(Unipolar power supply : +5V, Rated output voltage : Vof +0.625V, Offset voltage : 2.5V(Fixed))
*S12 series(Unipolar power supply : +12V, Rated output voltage : Vof +1.5V, Offset voltage : 2.5V(Fixed))
Insulation voltage : AC3kV, 50 Hz, 1 min
Creepage distance : 9.2mm
*D15AHV seies(9.2mm, Clearance distance : 9.2mm(Coil type), 7.9mm(Busbar type))