Datasheet > LQP02HQ1N2C02#

LQP02HQ1N2C02#

更新时间： 2023-09-03 20:26:47

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LQP02HQ1N2C02# 数据手册

Spec No.: JELF243C_0023G-01

P18/18

Appendix

Electrical performance: Measuring method for inductance/Q (Q measurement is applicable only when the Q value is included

in the rating table.)

Perform measurement using the method described below. (Perform correction for the error deriving from the measuring

terminal.)

(1) Residual elements and stray elements of the measuring terminal can be expressed by the F parameter for the 2-pole

terminal as shown in the figure below.

(2) The product's impedance value (Zx) and measured impedance value (Zm) can be expressed as shown below, by using

the respective current and voltage for input/output.

V₁

I₁

V₂

I₂

Zm=

Zx=

(3) Thus, the relationship between the product's impedance value (Zx) and measured impedance value (Zm) is as follows.

Here,

α = D/A = 1

β = B/D = Zsm - (1 - Yom Zsm) Zss

Γ = C/A = Yom

Zm-β

Zx=α

1-ZmΓ

Zsm: measured impedance of short chip

Zss: residual impedance of short chip (0.110 nH)

Yom: measured admittance when measuring

terminal is open

(4) Calculate inductance Lx and Qx using the equations shown below.

Im(Zx)

Lx: inductance of chip coil

Qx: Q of chip coil

Lx=

2πf

Im(Zx)

Qx=

f: measuring frequency

Re(Zx)

MURATA MFG CO., LTD

1...15 16 1718

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