MELF Fusible Wirewound Film Fixed Resistor

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

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

KNPM

1

100

J

S

0309

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

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)

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

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

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

-

-

-

-

-

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 = 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%