G12181-203K

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2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

G12181-203K Common Mode Choke – Parameter Table

Parameter Category	Parameter	Symbol	Value / Rating	Conditions / Notes
General Specifications	Part Number	–	G12181-203K	–
	Type	–	Common Mode Choke	Data Line Filter
	Inductance (Common Mode)	L<sub>CM</sub>	20,000 µH (20 mH)	±10%	Measured at 10 kHz, 0.5 V<sub>rms</sub>
	Rated Current	I<sub>R</sub>	200 mA	–
	Operating Temperature Range	T<sub>op</sub>	-40 °C to +85 °C	–
	Storage Temperature Range	T<sub>stg</sub>	-40 °C to +85 °C	–
Electrical Characteristics	DC Resistance (Max. per Line)	R<sub>DC</sub>	3.5 Ω	Typical value is lower
	Impedance (Common Mode)	Z	600 Ω (Min)	Measured at 10 MHz (Typical)
	Self-Resonant Frequency	SRF	~ 200 kHz (Typ.)	Dependent on measurement conditions.
	Rated Voltage	V<sub>R</sub>	50 V<sub>DC</sub>	–
	Withstanding Voltage	V<sub>ISO</sub>	100 V<sub>AC</sub>	For 1 minute, between coil and core
Isolation & Safety	Insulation Resistance	R<sub>ISO</sub>	≥ 100 MΩ	Measured at 100 V<sub>DC</sub>
Mechanical Characteristics	Pin Count / Configuration	–	4 pins	In-line, 2×2
	Pin Spacing (Pitch)	–	2.54 mm (0.1 inch)	Standard DIP spacing
	Case Material	–	Ferrite Core, Plastic Case	–
	Mounting Type	–	Through-Hole (DIP)	–
	Flammability Rating	–	UL 94V-0	–
Applications	Typical Use	–	Power Line EMI Suppression, Low-Frequency Noise Filtering	Switching Power Supplies, DC-DC Converters, LED Drivers