Panasonic, ETQP4M, 0840 Power Choke Coil with a Metal Composite Core, 680 nH ±20% 21A Idc

ETQP4M choke coils from Panasonic are a low profile, compact solution. Constructed from metal composite core technology, ETQP4M choke coils are highly reliable and offer high heat resistance up to +155°C. The use of ferrous alloy magnetic material ensures high bias current while low RDC of winding and low eddy-current loss of the cores enables high efficiency. These power choke coils feature low audible (buzz) noise. Designed to be used in automotive applications, and harsh conditions, these power choke coils have high vibration resistance.

Surface mount design
Low profile
Excellent inductance stability over a wide range of temperatures
Highly efficient
Excellent heat resistance
High bias current

With an AEC-Q200 qualification, the ETQP4M series is suitable for use in automotive applications. These choke coils are recommended as noise filters for drive circuitry that required peak current handling capability and high temperature operations. Other suitable applications include DC/DC buck converters and boost converters.

AEC-Q200

The Panasonic Power Inductor has high heat resistance and high reliability using metal composite core. It has high vibration resistance as result of newly developed integral construction. The excellent inductance stability using ferrous alloy magnetic material. It has shielded construction.

Operation up to 155°C including self heat
High bias current
Temperature stability
Low audible noise
Noise filter for various drive circuitry requiring high temperature operation and peak current handling capability

Panasonic Non Standard SMT Inductors (Chokes)