Specifications
Brand Name :
ALT
Model Number :
0309
Place of Origin :
China
MOQ :
2500
Price :
The yuan/0.05/PCS
Payment Terms :
MoneyGram
Delivery Time :
5-8 work days
Packaging Details :
T:Tapping Reel B:Bulk
Description
ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
  • ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
  • ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
  • ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
  • ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
  • ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
  • ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

MELF Fusible Wirewound Film Fixed Resistor

MELF Fusible Wirewound Film Fixed Resistor applies to electric light sources, switching power supplies, chargers, communication equipment, medical electronic equipment, test and measurement equipment, automobiles. Replacing plug-in resistors in electronic equipment such as electronics, industrial products, and household appliances.

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Product Description

MELF Fusible Wirewound Film Fixed Resistor

Scope Of MELF Fusible Wirewound Film Fixed Resistor

This standard applies to electric light sources, switching power supplies, chargers, communication equipment, medical electronic equipment, test and measurement equipment, automobiles.

Replacing plug-in resistors in electronic equipment such as electronics, industrial products, and household appliances.

ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip ResistorsALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip ResistorsALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Features Of MELF Fusible Wirewound Film Fixed Resistor

1) Use non-combustible / epoxy resin coatings with safety features of non-combustible and insulating;

2) Miniaturization for high-density placement;

3) Meet the requirements of lead-free (Pb) and lead-containing soldering processes;

4) Can be used in automatic surface mount (SMD) assembly systems. Suitable for automatic welding by wave soldering and reflow soldering

Power Derating curve Of MELF Fusible Wirewound Film Fixed Resistor

ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Structure dimension Of MELF Fusible Wirewound Film Fixed Resistor

ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Size Dimension(mm)
L D1 D2 Max.
0204 3.5±0.2 1.1±0.1 1.4±0.2
0207 5.9±0.2 1.7±0.1 2.1±0.2
0309

Single cap 8.5±0.2

Double cap 8.7±0.2

2.5±0.1

Single cap 3.1±0.2

Double cap 3.0±0.2

Material list Of MELF Fusible Wirewound Film Fixed Resistor

Code Name Material
1 Coating Non-combustible / epoxy resin coating
2 Color ring Flame retardant coating
3 Cuting wire --
4 Fuse element Alloy wire
5 Magnetic bar Alumina ceramic body / resistive film
6 Cap Tinned iron cap

Part Numbering Of MELF Fusible Wirewound Film Fixed Resistor

KNPM 1 100 J S 0309

KNPM : Series name

1 : Power Rating -- 0.125W,0.25W,0.5W,1W,2W.

100 : Resistance value -- E24 norminal resistance

J : Resistance tolerance -- F=±1%,G=±2%,J=±5%

S : Size code -- It is normal size without code; S- small size ; X-Ultra-small size.

Electrical Performances Of MELF Fusible Wirewound Film Fixed Resistor

Size Type Power range(70C) Temperature range℃ Insulation voltage V Resistance range(Ω)
±1%,±2%,±5%
0204

0.125W

0.25WS

0.5W-X

-55~155 200

MFM 0.1~2.2M

CFM 1~10M

MOFM 1~10K

0207

0.25W

0.5W-S

1W-X

-55~155 250

KNPM 0.22~100

MFM 0.1~10M

CFM 1~10M

MOFM 1~10K

0309

0. 5W

1W-S

2W-X

-55~155 350

KNPM 0.22~300

MFM 0.1~10M

CFM 1~10M

MOFM 1~10K

General Data Of MELF Fusible Wirewound Film Fixed Resistor

Nominal resistance tolerance ± 5%
Climate category 55/155/21
Low air pressure 8.5kpa
Stability level 5%
Resistance change Limit value
Long-term test ±(5%R+0.1Ω)
Short-term test ± (1% R + 0.05 Ω)
Rated current I2(A)=P(W)/R(Ω)

Package quantity & size Of MELF Fusible Wirewound Film Fixed Resistor

9.1 Tape Size

ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Size

φA

(mm)

φB

(mm)

φC

(mm)

W T QTY(pcs)
0204 179±2 60±2 13±0.5 9±1 12±0.5 3000
0207 179/330±2 90±2 13±0.5 10±1 14.5±1 2000/5000
0309 330±2 90±2 13±0.5 16±1 19.5±1 2500

9.2 Paper size Of MELF Fusible Wirewound Film Fixed Resistor

ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Size Dimension(mm)
A B W E F
0204 1.6±0.2 3.8±0.2 8.0±0.2 1.75±0.1 5.25±0.1
0207 2.4±0.2 6.0±0.2 12.0±0.2 1.75±0.1 7.25±0.1
0309 3.6±0.2 8.9±0.2 16.0±0.2 1.75±0.1 9.25±0.1
P0 P1 P2 D0 T
0204 4.0±0.1 4.0±0.1 2.0±0.1 1.5±0.1 1.65±0.1
0207 4.0±0.1 4.0±0.1 2.0±0.1 1.5±0.1 2.5±0.1
0309 4.0±0.1 8.0±0.1 2.0±0.1 1.5±0.1 3.5±0.1

Color marking Of MELF Fusible Wirewound Film Fixed Resistor

ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Color First digit Second digit Third digit Malutiplier Tolerance
Black 0 0 0 100 -
Brown 1 1 1 101 ±1
Red 2 2 2 102 ±2
Orange 3 3 3 103 -
Yellow 4 4 4 104 -
Green 5 5 5 105 ±0.5
Blue 6 6 6 106 ±0.25
Violet 7 7 7 107 ±0.1
Gray 8 8 8 108 -
White 9 9 9 109 -
Gold - - - 10-1 ±5
Sliver - - - 10-2 ±10
Plain - - - - -

Performance Specifications Of MELF Fusible Wirewound Film Fixed Resistor

Characteristics Test Conditions Limits
Short Time Over Load IEC 60115-1 4.13 5 seconds 2.5x rated voltage (not over max. overload voltage) ±2%
Load Life In Humidity IEC 60115-1 4.24 56 days rated load (not over max. working voltage) at (40±2)°C and (93±3)% relative humidity
Load Life 1,000 hours IEC 60115-1 4.25.1 Rated load (not over max. working voltage) with 1.5 hours ON, 0.5 hours OFF, at (70±2)°C ±5%
Resistance To Soldering Heat IEC 60115-1 4.18.2 Dip the resistor into a solder bath measured (260±5)°C and hold it for a 10±1 seconds ±1%
Solderability IEC 60115-1 4.17.2 Solder area covered after (230±3)°C/(2±0.2) seconds with flux applied 95% Min.
Vibration IEC 60115 4.22 Six hours in each parallel and axial direction with a simple harmonic motion having an amplitude of 0.75mm and 10 to 500 Hz. ±1%
Thermal Endurance IEC 60115-1 4.25.3 1000 hours at 200°C without load ±1%
Thermal Shock IEC 60115-1 4.19 -55°C 30minutes, +155°C 30minutes, 5 cycles ±3%
Surge Test Surge voltage =ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors DC P is power rating, R is resistance value, surge voltage is not more than listed at right. Surge spec = 1.2/50µs Period = 60 sec Number of surges = 100 ±5%
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ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Ask Latest Price
Brand Name :
ALT
Model Number :
0309
Place of Origin :
China
MOQ :
2500
Price :
The yuan/0.05/PCS
Payment Terms :
MoneyGram
Contact Supplier
ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors
ALT 0309 Flame Retardant Non Combustible Epoxy Resin Coating Fusible MELF Chip Resistors

Aolittel Technology Co.,Ltd

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7 Years
guangdong, dongguan
Since 2017
Business Type :
Manufacturer, Exporter
Total Annual :
3,750,000-5,000,000
Employee Number :
400~500
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