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| Price | Negotiable |
| MOQ | 10000 Pieces |
| Delivery Time | 7-10 Workdays |
| Brand | AMPFORT |
| Place of Origin | Dongguan,Guangdong,China |
| Certification | RoHS,REACH,UL |
| Model Number | CFR |
| Packaging Details | Tape or bulk |
| Payment Terms | T/T,Paypal, Western Union |
| Supply Ability | 500,000,000 Pieces Per Month |
| Encapsulation | DO-35 | Place of Origin | Dongguan,Guangdong,China |
| Meet | ROHS REACH | Termination Style | Axial |
| Packaging Details | Tape or bulk | Color | Khaki |
| Standard | 5% | Resistance Value | 1 Ohm ~10M Ohm |
| Model Number | CFR | Mounting Type | PCB Mount |
| Supply Ability | 500,000,000 Pieces Per Month | Operating Temp | -55~+155C |
| Certification | RoHS,REACH,UL | Name | Cylindrical Fixed Carbon Film Resistor |
| Brand Name | AMPFORT | Payment Terms | T/T,Paypal, Western Union |
| Insulation Resistance | 104MΩ or more. | Price | Negotiable |
| Delivery Time | 7-10 Workdays | Minimum Order Quantity | 10000 Pieces |
Cylindrical
Fixed
Carbon
Film
Resistor
1~10M
Ohm
1/8W
1/6W
0.25W
0.5W
1W
2W
3W
Overview
Of
The Cylindrical
Fixed
Carbon
Film
Resistor
Carbon
film
resistors
are
a
type
of
film
resistors.
It
uses
high-temperature
vacuum
coating
technology
to
closely
attach
carbon
to
the
surface
of
the
porcelain
rod
to
form
a
carbon
film,
then
add
appropriate
joints
for
cutting,
and
coat
the
surface
with
epoxy
resin
for
sealing
protection.
The
surface
is
often
painted
with
green
protective
paint.
The
thickness
of
the
carbon
film
determines
the
size
of
the
resistance,
and
the
thickness
of
the
film
and
the
notch
are
usually
used
to
control
the
resistor.
Carbon
film
resistors
are
also
called
"thermal
decomposition
carbon
film
resistors".
A
type
of
thin
film
resistor
in
which
carbon
is
deposited
on
the
substrate
by
carbon
that
is
thermally
decomposed
at
high
temperature
in
a
vacuum.
Low
price,
stable
performance,
wide
resistance
value
and
power
range.
Application Of
The
Cylindrical
Fixed
Carbon
Film
Resistor
The
typical
uses
for
carbon
film
resistors
are
in
high
voltage
and
high
temperature
applications.
Operating
voltages
can
be
as
high
as
15
kV
with
nominal
temperatures
of
350°C.
Example
uses
include
high
voltage
power
supplies,
radars,
x-rays,
and
lasers.
Features Of
The
Cylindrical
Fixed
Carbon
Film
Resistor
•
Flameproof
coating
is
available
(specify
“CFR”)
•
Reduced
body
size
(specify
“Miniature”)
•
Suitable
for
automatic
machine
insertion
•
Products
with
lead-free
terminations
meet
EU
RoHS
and
China
RoHS
requirements
•
Available
in
resistances
from
1
Ohm
to
9.1
mOhm
•
1/8W
~
5W
power
rating
•
5%
tolerance
•
Resistor
body
2.3
mm
in
diameter,
6.3
mm
in
length
•
Carbon
film
construction
•
Long-term
stability
•
Solder
plated
copper
leads
Electrical
Parameters Of
The
Cylindrical
Fixed
Carbon
Film
Resistor
|
Type |
Rated
power |
Maximum
working |
Maximum
overload |
Dielectric
withstanding |
Resistance |
|
| Normal size | CF1/8W | 0.125W | 200V | 400V | 350V | 1Ω~10MΩ |
| CF1/4W | 0.25W | 250V | 500V | 500V | 1Ω~10MΩ | |
| CF1/2W | 0.5W | 350V | 700V | 700V | 1Ω~10MΩ | |
| CF1W | 1W | 500V | 800V | 800V | 1Ω~10MΩ | |
| CF2W | 2W | 500V | 1000V | 1000V | 1Ω~10MΩ | |
| CF3W | 3W | 500V | 1000V | 1000V | 1Ω~10MΩ | |
| CF5W | 5W | 500V | 1000V | 1000V | 1Ω~10MΩ | |
| Small size | CF1/4WS | 0.25W | 250V | 400V | 350V | 1Ω~10MΩ |
| CF1/2WS | 0.5W | 350V | 700V | 500V | 1Ω~10MΩ | |
| CF1WS | 1W | 500V | 800V | 700V | 1Ω~10MΩ | |
| CF2WS | 2W | 500V | 1000V | 800V | 1Ω~10MΩ | |
| CF3WS | 3W | 500V | 1000V | 1000V | 1Ω~10MΩ | |
| CF5WS | 5W | 500V | 1000V | 1000V | 1Ω~10MΩ | |
Dimension
Of
The
Cylindrical
Fixed
Carbon
Film
Resistor
(mm)
| Type | Dimensions | |||||
|
Normal Size |
Small Size |
I | L | ψD | ψd | H |
| CF1/8W | CF1/4WS | 60 | 3.2±0.5 | 1.8±0.5 | 0.43±0.05 | 28.0±2.0 |
| CF1/4W | CF1/2WS | 60 | 6.5±0.5 | 2.3±0.5 | 0.45±0.05 | 28.0±2.0 |
| CF1/2W | CF1WS | 60 | 9.0±0.5 | 3.2±0.5 | 0.50±0.05 | 28.0±2.0 |
| CF1W | CF2WS | 60 | 11.5±1.0 | 4.5±0.5 | 0.7 0±0.05 | 25.0±2.0 |
| 81 | 11.5±1.0 | 4.5±0.5 | 0.7 0±0.05 | 35.0±2.0 | ||
| 94 | 11.5±1.0 | 4.5±0.5 | 0.7 0±0.05 | 42.0±2.0 | ||
| CF2W | CF3WS | 60 | 15.0±1.0 | 5.0±0.5 | 0.70±0.05 | 23.0±2.0 |
| 70 | 15.0±1.0 | 5.0±0.5 | 0.70±0.05 | 28.0±2.0 | ||
| 81 | 15.0±1.0 | 5.0±0.5 | 0.70±0.05 | 33.0±2.0 | ||
| 94 | 15.0±1.0 | 5.0±0.5 | 0.70±0.05 | 40.0±2.0 | ||
| CF3W | CF5WS | 94 | 17.5±1.0 | 6.0±0.5 | 0.70±0.05 | 38.0±2.0 |
| CF5W | 94 | 24.5±1.0 | 8.0±0.5 | 0.70±0.05 | 35.0±2.0 | |
|
NO |
Item |
Material |
| 1 |
Ceramic core |
High alumina ceramic is used. |
| 2 |
Resistor element |
The resistor element shall consist of carbon film. |
| 3 |
Terminal |
Tinned iron cap. |
| 4 |
Connection |
The lead wire, which is plated with solder, shall be mounted to the caps by welding process. |
| 5 |
Lead wire |
Soldered or tinned annealed wire. |
| 6 |
Undercoat painting |
Electric insulation resin. |
| 7 |
Finishing painting |
Epoxy resin is used. |
| 8 |
Indication |
Color code. |
M
Type
Formed Of
The
Cylindrical
Fixed
Carbon
Film
Resistor
|
Watts |
Dimensions (mm) | |||
| ΦD | L | P±1.0 | H±1.0 | |
| 1/8w,1/6w | 1.8±0.3 | 3.2±0.5 | 6 | 8 |
| 1/4w,1/2ws | 2.3±0.5 | 6.5±0.5 | 10 | 8 |
| 1/2w,1ws | 3.5±0.5 | 9.5±0.5 | 12.5/15 | 10 |
| 1w,2ws | 4.5±1.0 | 11.5±1.0 | 15 | 10 |
| 2w,3ws | 5.0±1.0 | 15.5±1.0 | 20 | 10 |
| 3w | 6.0±1.0 | 17.5±1.0 | 25 | 10 |
| 5w | 8.0±1.0 | 24.5±1.0 | 30 | 10 |
What
do
the
colours
mean?
Each
of
the
colour
bands
has
a
specific
meaning.
The
first
two
colours
give
the
base
value
of
the
resistor,
the
next
gives
the
multiplier
and
the
final
band
the
tolerance.
If
a
resistor
has
five
bands,
it
is
a
more
precise
resistor,
in
which
the
first
three
bands
represent
the
base
values,
and
the
fourth
and
fifth
represent
the
multiplier
and
tolerance
respectively.
Benefits
of
Carbon
Composition
Carbon
composition
resistors
are
made
from
a
moulded
carbon
powder
that
has
been
mixed
with
a
phenolic
resin
to
bind
and
create
a
uniform
resistive
body.
It
is
then
surrounded
in
an
insulating
case
after
attaching
end
leads.
Carbon
composition
resistors
are
used
in
applications
in
which
the
initial
tolerance
does
not
need
to
be
any
closer
than
+/-
5%
of
the
value.
