Device Modeling Report
COMPONENTS: CHOKE COIL
PART NUMBER: SF-T5-25-01-PF
MANUFACTURER: TDK
Bee Technologies Inc.
.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2006

Equivalent circuit
R1
C1
R2
C2
L1 L2 RS
1 2
Theory: Auto Balancing Bridge Method
All Rights Reserved Copyright (c) Bee Technologies Inc. 2006

Optimization of Simulation
Range of adjustment Frequency:100 to100M(Hz)
Frequency vs.|Z| and Frequency vs.θz Characteristic
Attention)
Please use SPICE MODEL within the range from 100 to 100M(Hz)
Measurement Simulation
10K
1. 0K
100
10
1. 0
100m
10m
100Hz 1. 0KHz 10KHz 100KHz 1. 0MHz 10MHz 100MHz
V( N01685) / I ( V2)
Fr equenc y
L1 12.151u(H)
L2 24.0673u(H)
C1 5.81894p(F)
C2 2.2969p(F)
R1 2.89441k(Ω)
R2 592.966(Ω)
RS 37.9262m (Ω)
Frequency vs. |Z| Characteristic
All Rights Reserved Copyright (c) Bee Technologies Inc. 2006

Simulation result
10K
1. 0K
100
10
1. 0
100m
10m
100Hz 1. 0KHz 10KHz 100KHz 1. 0MHz 10MHz 100MHz
V( N01685) / I ( V2)
Fr equenc y
Evaluation circuit
R3 V1
N01685
1k
U1
SF-T5-25-01-PF
V2
1Vac
0Vdc
0
Comparison Graph
All Rights Reserved Copyright (c) Bee Technologies Inc. 2006

10000
Measurement
Simulation
1000
Impedance (Ohm)
100
10
1
0.1
0.01
100 1000 10000 100000 1000000 10000000 100000000
Frequency (Hz)
Comparison Table
Frequency |Z|(ohm) : |Z|(ohm) :
Error (%)
(Hz) Measurement Simulation
100 44.663m 44.231m -0.97
1K 0.22310 0.23072 3.41
10K 2.2410 2.2761 1.57
100K 22.264 22.750 2.18
1M 209.50 219.96 4.99
10M 1.1062k 1.0828k -2.11
100M 266.72 271.92 1.95
Measurement Simulation Error (%)
FSRF (Hz) 20.182M 20.200M 0.09
|Z| (ohm), at
1.66915k 1.6685k -0.04
FSRF
All Rights Reserved Copyright (c) Bee Technologies Inc. 2006