value refers to the technical products that
require to the
frequency test mark . Inductance units are H,mH,uH,nH.
F(กำ1%), G(กำ2%), H(กำ3%), J(กำ5%), , K(กำ10%), L(กำ15%),
M(กำ20%), P(กำ25%), N(กำ30%), and J,K,M are the common
measure L, Q , DCR value correctly , alternating
current must be added to the tested inductors according
with the regulations, the alternating current , which
the more approach actual operating frequency the better.
Units of inductance value at present as low as to
nH and frequency testing instruments are require as
high as to 3G.
must be tested the max DCR, the smaller the better.
Howerver, power inductors are not acquired tested
DCR (test wire specification only).
4. The Max Current
max current are 1.25-1.5 times of the rate current
, and the max current reduce to 50% will be more security.
5. Anti-Electronic Strength
& Moisture Proof
the anti-electronic strength inductors, shielded-material
& high-voltage tolerance should be optioned,the
higher voltage inductors the moisture proof better,
Using resin immersion, encapsulation and SMT craft
are able to meet the requirements.