TOKEN
THROUGH HOLE
INDUCTORS
Token Electronics Industry Co., Ltd
.
Taiwan:
No. 137, Sec. 1, Chung Shin Rd., Wu Ku Hsiang, Taipei Hsien, Taiwan, R.O.C
TEL: 886-2-2981 0109; FAX: 886-2-2988 7487
China:
12F, Zhongxing Industry Bld., Chuangye Rd., Nanshan District, Shenzhen, Guangdong
TEL: 86-755-2605 5363, 2605 5364; FAX: 86-755-2605 5365
http://www.token.com.tw
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Product Index
Information
General Information ----------------------------------------------------------------------------- 01
Terminology & Glossary ----------------------------------------------------------------------- 02
Measurements of Fixed Inductors --------------------------------------------------------- 06
Through Hole Inductors
TCUU Series - EMI Line Filters --------------------------------------------------------------- 08
TCAL Fixed Series -------------------------------------------------------------------------------- 19
TCDA Series - Power Large Current -------------------------------------------------------- 30
TCRB Series - Radial Choke ------------------------------------------------------------------- 39
TCRC Series - Radial Chokes ----------------------------------------------------------------- 46
TCRS Series - Shielded Radial Choke ----------------------------------------------------- 55
TC19 Series - Through Hole Gap Toroidal Coils --------------------------------------- 59
TCPC Series - Power Choke ------------------------------------------------------------------ 61
TC1213 Power Series --------------------------------------------------------------------------- 63
TCLP/TCVP Low DCR Series ----------------------------------------------------------------- 65
TCAC Series - Air Core Coils ----------------------------------------------------------------- 68
TCB7T Series - Common Mode Choke Coils -------------------------------------------- 72
TCTK Toroidal Series --------------------------------------------------------------------------- 75
TCTC Series - Vertical base mounted Toroidal ----------------------------------------- 77
TCFB Series - Ferrite Beads ------------------------------------------------------------------ 79
TCWB Series - Wide Band Chokes --------------------------------------------------------- 82
Notice:
Specification Changed or Version Updated will be posted at irregular intervals.
All Updated and Final Specifications, Please Confirm with TOKEN ELECTRONICS
REPRESENITIVES.
:
:
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Through Hole General Information
Through Hole
Inductors
General Infornation
Leading-Edge Technology
Token Electronics brand passive component specializes in standard and custom solutions offering t
he latest in state-of-the-art low profile high power density inductor components. Token provides
cost-effective, comprehensive solutions that meet the evolving needs of technology-driven markets.
In working closely with the industry leaders in chipset and core development, we remain at the
forefront of innovation and new technology to deliver the optimal mix of packaging, high efficiency
and unbeatable reliability. Our designs utilize high frequency, low core loss materials, new and
custom core shapes in combination with innovative construction and packaging to provide designers
with the highest performance parts available on the market.
Find Inductor Solutions Faster
Find Your Inductor -
wt.moc.nekot@qfr
Only timely and accurate information can help manage the changing needs of your customers. The
Token InductorFinder puts you only a click away from all of the inductor information you need.
Find Your Solution -
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Selecting the correct inductor solution will not only save you time, but it will give you a competitive
edge. At Token, we are committed to helping you find the most efficient alternative for your power
design. Our inductor and power supply design experts can help you make that selection.
Please forward us:
● A brief description of your particular application’s requirements.
● Details of an existing solution that you’d like to replace, enhance or find an alternative.
● Inquiries for feasibility to tailor a power transformer or inductor to your specific application.
We can also help you with any additional technical information you might need relating to any of
our sproducts.
Ask Us Today
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Fixed Inductor Terminology Glossary
Fixed Inductor
Terminology Glossary
Inductor and Magnetic Product Terminology & Glossary
Air Core Inductor (Ceramic Core Inductor)
Air core inductors are often referred to as “Ceramic Core” inductors. Air core inductor is most often
used in high frequency applications where low inductance values, very low core losses and high Q
values are required.
Ceramic has no magnetic properties. Thus, there is no increase in permeability due to the core
material. Its main purpose is to provide a form for the coil. In some designs it also provides the
structure to hold the terminals in place. Ceramic has a very low thermal coefficient of expansion.
This allows for relatively high inductance stability over the operating temperature ranges.
Axial Inductor
An inductor constructed on a core with concentric leads on opposite ends of the core. Axial
inductors are available for both power applications and RF applications, and are available in many
core materials including the basic phenolic, ferrite and powdered iron types. Both rod and bobbin
shapes are utilized. Axial inductors are very suitable for tape and reel packaging for auto placement.
RF Choke
Another name for a radio frequency inductor which is intended to filter or choke out signals.
What is Inductor?
A passive component designed to resist changes in current. Inductors are often referred to as “AC
Resistors”. The ability to resist changes in current and the ability to store energy in its magnetic
field,account for the bulk of the useful properties of inductors. Current passing through an inductor
will produce a magnetic field. A changing magnetic field induces a voltage which opposes the
field-producing current. This property of impeding changes of current is known as inductance.
The voltage induced across an inductor by a change of current is defined as:
Equation V = L d
i
/d
t
where V (Induced Voltage); L (Inductance Value).
Thus, the induced voltage is proportional to the inductance value and the rate of current change.
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DCR (DC Resistance)
Fixed Inductor Terminology Glossary
Inductor and Magnetic Product Terminology & Glossary
The resistance of the inductor winding measured with no alternating current. The DCR is most often mini-
mized in the design of an inductor. The unit of measure is ohms, and it is usually specified as a maximum
rating.
EMI
EMI is an acronym for Electromagnetic Interference. It is unwanted electrical energy in any form. EMI is
often used interchangeably with “Noise”.
Ferrite Core
Ferrite is a magnetic material which consists of a mixed oxide of iron and other elements that are made to
have a crystalline molecular structure. The general composition of ferrites is xxFe
2
O
4
where xx represents
one or several metals. The most popular metal combinations are manganese and zinc (MnZn) and nickel
and zinc (NiZn). These metals can be easily magnetized.
Impedance
The impedance of an inductor is the total resistance to the flow of current, including the AC and DC
component. The DC component of the impedance is simply the DC resistance of the winding. The AC
component of the impedance includes the inductor reactance. The following formula calculates the
inductive reactance of an ideal inductor (i.e., one with no losses) to a sinusoidal AC signal.
Equation Z = XL = 2ΠƒL.
This equation indicates that higher impedance levels are achieved by higher inductance values or at higher
frequencies.
Inductance & Tolerance
The property of a circuit element which tends to oppose any change in the current flowing through it. The
inductance for a given inductor is influenced by the core material, core shape and size, the turns count and
the shape of the coil. Inductors most often have their inductances expressed in microhenries (μH).
Tolerance Letter of Inductance Table
Tolerance
±1%
±2%
±3%
±5%
± 10 %
± 15 %
± 20 %
Letter
F
G
H
J
K
L
M
Inductance
1 henry (H) = 106 μH
1 millihenry (mH) = 103 μH
1 microhenry (μH) = 1 μH
1 nanohenry (nH) = 10-3 μH
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