Mini 2 Watt 820K Ohm Carbon Film Fixed Resistor E24 , Carbon Resistors for sale

Categories	Carbon Film Resistor
Place of Origin:	Dongguan,Guangdong,China
Brand Name:	UCHI
Certification:	UL.VDE.SGS.CTI
Model Number:	CFR2WS
MOQ:	10000PCS
Price:	Negotiable
Packaging Details:	Bulk/Tape
Delivery Time:	7 working days
Payment Terms:	T/T,Paypal,Western Union,Money gram
Supply Ability:	8000,000,000PCS Per Month

Product Details
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Mini 2 Watt 820K Ohm Carbon Film Fixed Resistor E24 , Carbon Resistors

Mini 2 Watt 820K Ohm Carbon Film Fixed Resistor E24 , Carbon Resistors

Quick Detail:

• Temperature Range -55°C ~ +155°C

• ±5% tolerance

• High quality performance at economical prices

• Compatible with automatic insertion equipment

• Flame retardant type available

• Tin coated annealed copper wire

• Values below 1Ω or above 10MΩ are available by special request, please ask for details

Description:

Carbon film resistors are a fixed form type resistor. They are constructed out of a ceramic carrier with a thin pure carbon film around it, that functions as resistive material.

Applications:

Can be installed into the power circuits of:

• Power supplies and inverters

• Uninterruptible Power Supplies

• Energy saving lamps

• Electronic Ballasts

• Filament Protection of various types of lamps

• Some types of heaters

• For higher power circuits ask about the MF73

and MF74 series surge suppressors.

Specifications:

1. General

1.1 Scope

This specification is available for Carbon Film Fixed Resistor manufactured by,it accords with RoHS test of Environment related substance requirement.

1.2 Type designation (example)

The type designation shall be in the following form and as specified.

CF 1/4 W 10K J T52

1.3 Rated power

Rated power is maximum power which can be continuously loaded at specified ambient temperature

70℃,as Table-1;however when the ambient temperature exceeds 70℃,rated power should be determined

from the derating curve of Fig.1.

Table-1

Type		Rated power	Maximum working voltage	Maximum overload voltage	Dielectric withstanding voltage	Resistance Range(Ω)
Normal size	CF1/8W	0.125W	200V	400V	300V	1Ω~10MΩ
	CF1/4W	0.25W	250V	500V	350V	1Ω~10MΩ
	CF1/2W	0.5W	350V	700V	400V	1Ω~10MΩ
	CF1W	1W	500V	800V	450V	1Ω~10MΩ
	CF2W	2W	500V	1000V	450V	1Ω~10MΩ
	CF3W	3W	500V	1000V	500V	1Ω~10MΩ
	CF5W	5W	500V	1000V	500V	1Ω~10MΩ
Small size	CF1/4WS	0.25W	200V	400V	300V	1Ω~10MΩ
	CF1/2WS	0.5W	250V	500V	350V	1Ω~10MΩ
	CF1WS	1W	350V	700V	400V	1Ω~10MΩ
	CF2WS	2W	500V	800V	450V	1Ω~10MΩ
	CF3WS	3W	500V	1000V	450V	1Ω~10MΩ
	CF5WS	5W	500V	1000V	500V	1Ω~10MΩ

Figure 1 Power derating curve

1.4 Rated voltage

The rated voltage shall be the D.C. or A.C.(R.M.S. at power frequency) voltage which corresponds

the rated power and the value of which is calculated from the formula below.

E=√(P×R) Where E: Rated voltage(V)

P: Rated power(W)

R: Nominal resistance(Ω)

Operating Temperature Range:-55℃～+155℃

2. Construction

2.1 External dimensions

The dimensions shall be satisfied with [5. External dimensions].

2.2 Structure diagram

The construction of resistor (CF series) shall be as follows:

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.

2.3 Terminal caps

The caps shall be securely connected with the resistor element electrically and mechanically.

2.4 Resistor body color

Table-2

Normal size

Small size

Type

Color

Type

Color

CF1/8W,CF1/4W,

CF1/2W,CF1W,

CF2W,CF3W,CF5W

Khaki

CF1/4WS,CF1/2WS,

CF1WS,CF2WS,

CF3WS,CF5WS

Khaki or Green

2.5 Indication

The indication shall be satisfied with [4. Indication].

3. Characteristics

Table-3

Item

Performance

Test methods(Conform to JIS C 5202)

Temperature

Coefficient

T.C.R

±350

(PPM/℃)

+0~

-500

(PPM/℃)

+0~

-700

(PPM/℃)

+0~

-1500

(PPM/℃)

Comply with 5.2

×10⁶(PPM/℃)

R₁-R₀

R₀(T₁-T₀)

R₀: Resistance value at room temp.( T₀).

R₁:Resistance value at room temp.plus 100℃ (T₁)

Resistance

Value

＜47KΩ

47KΩ

100KΩ

101KΩ

330KΩ

331KΩ

10MΩ

Short time

overload

Within ±(1%+0.05Ω).

No evidence of mechanical damage.

Comply with 5.5

Rated voltage×2.5 times,5s

But not to exceed maximum overload voltage. (See table-1)

Item

Performance

Test methods(Conform to JIS C 5202)

Insulation

Resistance

10⁴MΩ Mini.

10⁴MΩ or more.

Comply with 5.6

V-block method

Resistor shall be tested at DC 500V for 60 seconds.

Dielectric

Withstanding

Voltage

No evidence of flashover mechanical damage, arcing

or insulation breakdown.

Comply with 5.7

Constant pressure, V-block method

Resistor shall be tested at AC potential respectively for 60 seconds.(See table-1)

Pulse overload

Within ±(2%+0.05Ω)

Comply with 5.8

Rated voltage X 4 times, 10000 cyc.(1s ON, 25s OFF)

But not to exceed maximum pulse voltage.(See table-1)

Terminal strength

No evidence of mechanical damage.

Comply with 6.1

Tensile strength

Diameter

Tensile force N(kgf)

Time

Φ0.38mm~0.50mm

5(0.51)

10±1

second

Φ0.50mm~0.68 mm

10(1.02)

Torsion strength:To bend the lead wire at the point of about 6mm~

Item

Performance

Test methods(Conform to JIS C 5202)

Insulation

Resistance

10⁴MΩ Mini.

10⁴MΩ or more.

Comply with 5.6

V-block method

Resistor shall be tested at DC 500V for 60 seconds.

Dielectric

Withstanding

Voltage

No evidence of flashover mechanical damage, arcing

or insulation breakdown.

Comply with 5.7

Constant pressure, V-block method

Resistor shall be tested at AC potential respectively for 60 seconds.(See table-1)

Pulse overload

Within ±(2%+0.05Ω)

Comply with 5.8

Rated voltage X 4 times, 10000 cyc.(1s ON, 25s OFF)

But not to exceed maximum pulse voltage.(See table-1)

Terminal strength

No evidence of mechanical damage.

Comply with 6.1

Tensile strength

Diameter

Tensile force N(kgf)

Time

Φ0.38mm~0.50mm

5(0.51)

10±1

second

Φ0.50mm~0.68 mm

10(1.02)

Torsion strength:To bend the lead wire at the point of about 6mm~

4. Indication

Color Code

5. External dimensions

P type

Type

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