Wednesday, December 29, 2010

【 Weak current College 】 FET parameter symbol meaning 】


Cds-leakage-source capacitance
Cdu-leakage-substrate capacitance
Cgd-gate-source capacitance
Cgs-leakage-source capacitance
Ciss---gate shorted total source input capacitance
Coss-gate shorted total source output capacitor
Crss-gate shorted total source reverse transfer capacitance
D-duty (duty factor detection tester for electronic circuit parameters)
Di/dt---current up rate (detection tester for electronic circuit parameters)
Dv/dt-voltage rise rate (detection tester for electronic circuit parameters)
ID: drain current (DC)
IDM-drain current
ID (on)---flux-state leakage current
IDQ---static drain current (RF power tube)
IDS-the drain-source current
IDSM-maximum leakage source current
IDSS-gate-source short-circuit, drain current
IDS (sat)-channel saturation current (drain-source saturation current)
IG-a-gate current (DC)
IGF-forward gate current
IGR---reverse gate current
IGDO---source-drain, cut-off gate current
IGSO-drain, cut-off gate current
IGM-gate pulse current
IGP-gate peak current
IF---diode forward current
IGSS---drain current of short circuit closed gate
IDSS1---on the tube first pipe leak source saturation current
IDSS2---on the second pipe leak source saturation current
Iu-substrates-current
Ipr-current pulse peak (detection tester for electronic circuit parameters)
Gfs---forward transconductance
Gp-power gain
Gps---total source and high frequency power gain
GpG---total grid and high-frequency power gain
GPD---total drain and high frequency power gain
Ggd-gate leakage Guide
Gds-drain-source conductance
K-offset voltage temperature coefficient
Ku-transmission coefficient
L---load inductance (detection tester for electronic circuit parameters)
LD-drain inductance
Ls-source inductors
RDS-drain-source resistance
RDS (on)---drain-source on-State resistance
RDS (of)---off-state leakage source resistance
RGD-gate leakage resistance
RGS-gate-source resistance
Rg-gate external resistor (detection tester for electronic circuit parameters)
RL-load resistance (detection tester for electronic circuit parameters)
R (th) jc---crust thermal resistance
R (th) ja-knot loop resistance
PD-a-drain power dissipation
PDM-drain maximum allowable dissipation power
PIN--input power
POUT---output power
PPK-pulse power peak (detection tester for electronic circuit parameters)
To (on)---opening delay time
Td (off)---turn-off delay time
Ti-rise time
Ton---opening times
Toff---turn-off time
Tf-fall time
Trr---reverse recovery time
Tj-TJ
Tjm---the maximum junction temperature
Ta-environment temperature
Tc-tube shell temperature
Tstg---storage into temperature
VDS-drain-source voltage (DC)
VGS-gate-source voltage (DC)
VGSF--forward gate-source voltage (DC)
VGSR--gate-source voltage-reverse (DC)
VDD-drain (DC) power supply voltage (detection tester for electronic circuit parameters)
VGG-gate (DC) power supply voltage (detection tester for electronic circuit parameters)
Vss-source (DC) power supply voltage (detection tester for electronic circuit parameters)
VGS (th)-turn on voltage or valve voltage
V (BR) DSS---drain-source Breakdown voltage
V (BR) GSS-drain-source short-circuit gate-source Breakdown voltage
VDS (on)---drain-source on-State voltage
VDS (sat)---drain-source voltage of saturation
VGD-gate leakage voltage (DC)
Vsu---source substrate voltage (DC)
VDu-leakage substrate voltage (DC)
VGu-gate substrate voltage (DC)
Zo-driven source resistance
Η-drain efficiency (RF power tube)
Vn-noise voltage
AID-drain current temperature coefficient
Ards-drain-source resistance temperature coefficient

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