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1. GENERAL INSTRUCTION:
1-1 SCOPE
This specification applies to the Metal Film Resistor made by LGE ELECTRONICS IND.CORP.
1-2 CLASSIFICATION
Type number is described as follows:
MF 1/4W T 10Ω OHM F(±1%)
CLASS POWER RATING SHAPE NOMINAL TOLERANCE
RESISTANCE
VALUE
2.NOMINAL RESISTANCE:
The nominal resistance shall be the resistance marked on the resistor body and identified, as
a Rule, in units ,Ω,KΩ,MΩ.
3.NOMINAL RESISTANCE TOLERANCE.
The nominal resistance tolerance is represented in one capital letter selected from F(±1%),
D(±0.5%),C(±0.25%), B(±0.1%),K(±10%).
4 .RATING:
MF (METAL FILM FIXED RESISTORS)
STYLE | MAX WORKING | MAX OVERLOAD | DIELECTRIC WITHSTANDING | RESISTANCE VALUE RANGE |
MF1/6W.1/8W. 1/16W | 200V | 400V | 300V | 1Ω－10MΩ |
MF1/4W / I/4WS | 250V | 500V | 500V | 1Ω－10MΩ |
MF1/2W / 1/2WS | 350V | 700V | 700V | 1Ω－10MΩ |
MF1W / 1WS | 500V | 1000V | 1000V | 1Ω－10MΩ |
MF2W / 2WS | 500V | 1000V | 1000V | 1Ω－10MΩ |
MF3W / 3WS | 500V | 1000V | 1000V | 1Ω－10MΩ |
MF5W / 5WS | 500V | 1000V | 1000V | 1Ω－10MΩ |
4 – 1.POWER RATING
Power rating is defined as maximum power rating continuously applied under ambient
temperature at 70℃.when the ambient temperature exceeds 70℃ ,use chart 1.
4 – 2 RATED VOLTAGE
Rated voltage is defined as the DC or AC (effective
Value at commercial frequency example 50 C/S,60 C/S)
Voltage when rated power is applied and can be calculated
By the following EQUATIONE =√PR
E=RATED VOLTAGE
P=RATED POWER (WATTS)
R=NOMINAL RESISTANCE VALUE (OHM)
When the calculated rated voltage exceeds the
Maximum usable voltage flue shown in CHART 1,the
Maximum usable voltage is defined as the voltage
According to the power-decreasing curve shown in CHART1.
ITEM (STANDARD) | PERFORMANCE AND/OR QUALIITY ACCEPTANCE | TEST METHOD |
Resistance value Vs Temperature Characteristics |
±100PPM/℃
| JIS-C-5202 5.2 Measure resistance (Ro ohm) at room Temperature(To ℃) Measure again the same at 100℃ Higher then room temperature R – RO 106 PPM = * RO (T0+100) –T0
|
ITEM (STANDARD) | PERFORMANCE AND/OR QUALIITY ACCEPTANCE | TEST METHOD |
Short time overload |
The resistance variation shall be within±(0.5% + 0.05ohm) and there Shall be no mechanical breakage
| JIS-C-5202 5.5 Apply DC voltage 2.5times the rated Voltage for 5 seconds The leave at room temperature for 30 Minutes then measure MAX overload Voltage 0.50W – 700V (DC) |
Insulation resistance |
10,000M ohm or more | JIS-C-5202 5.6 in V-BLOCK Lay the resistor on 90° angle metal V Block apply 500VDC between resistor Lead and V block for one Minute And Measure |
Voltage endurance |
The resistance variation shall be within±(0.5% + 0.05ohm) and there shall Be no mechanical breakage
| JIS-C-5202 5.7 Icy the resistor on the 90° angle metal V Block and apply reamed AC voltage for One Minute. Test voltage 0.25W – 500V (AC) 0.50W –700V(AC) |
Intermittent overload |
Resistance variation shall be Within ±(0.50% + 0.05ohm) | JIS-C-5202 5.8 Apply AC voltage 4 times the rated voltage for 1 second and rest for 25 seconds and Repeat this cycle for 10000±200times leave resistor 30 minutes at room temperature after test and measure Maximum voltage for intermittent Overload.0.50W – 700V(AC) |
Terminal strength | Resistance variation shall be within ±(0.5% + 0.05ohm) also there Shall be on mechanical breakage |
Pull test apply 2.5kg force to the lead in the direction of lead axisfor30±5 seconds. |
Heat resistively Against soldering |
Resistance variation shall be within ± (0.25%+0.05ohm) also there Shall be on mechanical breakage |
JIS-C-5202 6.4 Dip the lead in to a solder bath having a Temperature of 350℃ ± 10℃ up to 4±0.8mm from the body of the resistor and hold it for 3±0.5seconds leave the resistor at room temperature 3 hours after ,then Measure |
Load life test |
The variation of the resistance Shall be within ± (1.5%+0.05ohm) Also there shall be no mechanical Breakage |
JIS-C-5202 7.10 In the constant temperature chamber having Temperature70℃ ± 2℃,apply rated Dc voltage for 1.5hour and shut voltage for 0.5 hour and repeat this cycle for 1000 hours,leave in room temperature hour after test, then measure |
EM (STANDARD) |
PERFORMANCE AND/OR QUALITY ACCEPTANCE |
TEST METHOK |
Solder ability |
More than 95% of the surface of the lead shall be covered by new solder after the leads are dipped in the Solder | JIS-C-5202 6.5 Dip the lead in to a solder bath having a Temperature of 260℃±5℃ up to 4±0.8mm from the body of the resistor and hold it for 5± 0.5seconds then inspect |
Humidity load test |
Resistance variation be Within ± (1.5% + 0.05ohm) Also there shall be no mechanical breakage | JIS-C-5202 7.9 In temperature chamber having temperature 40℃±2℃,relative humidity 90 – 95%,Apply rated voltage 1.5hour and shut voltage 0.5 hour repeat this cycle for 1000 hours, leave in room temperature for hour after test, then measure |
5.Marking
Tolerance
Number of zeros or decimal multiplier
3 rd significant figure
2 nd significant figure
1 st significant figure
Color refer
Color |
1 st Band |
2 nd Band |
3 rd Band |
4 th Band | Tolerance |
Black | 0 | 0 | 0 | 100 |
|
Brown | 1 | 1 | 1 | 101 | ±1.00﹪ |
Red | 2 | 2 | 2 | 102 |
|
Orange | 3 | 3 | 3 | 103 |
|
Yellow | 4 | 4 | 4 | 104 |
|
Green | 5 | 5 | 5 | 105 | ±0.50﹪ |
Blue | 6 | 6 | 6 | 106 | ±0.25﹪ |
Violet | 7 | 7 | 7 | 107 | ±0.10﹪ |
Grey | 8 | 8 | 8 | 108 |
|
White | 9 | 9 | 9 | 109 |
|
Gold |
|
|
| 10-1 |
|
Silver |
|
|
| 10-2 |
|
6. Construction and Dimension
6-1.Construction
a. Tinned Copper Wire .
b. Tinned Iron Caps.
c. Metal Film
d. Ceramic Rod
e. Epoxy Resin.
f. Color Code
6-2 Outline Dimensions
TABLE Unit:m/m
WATTS | L | D | H | d ±0.02m | PULLING (Kg) |
MF1/6W 1/8W 1/4WS | 3.2±0.3 | 1.8±0.3 | 28±2.0 | 0.40~0.48 | 2.5Kg-30S |
MF1/4W / 1/2WS | 6.0±0.5 | 2.3±0.3s | 27±2.0 | 0.40~0.52 | 2.5Kg-30S |
MF1/2W / 1WS | 9.0±1.0 | 3.5±0.5 | 26±2.0 | 0.58 | 2.5Kg-30S |
MF1W / 2WS | 11.0±1.0 | 4.5±0.5 | 35±2.0 | 0.68 | 3Kg-30S |
MF2W / 3WS | 15.0±1.0 | 5.0±0.5 | 33±2.0 | 0.78 | 5Kg-30S |
MF3W /5WS | 17.0±1.0 | 6.0±0.5 | 32±2.0 | 0.78 | 5Kg-30S |
MF5W | 24.0±1.0 | 8.0±1.0 | 28±2.0 | 0.78 | 5Kg-30S |
7.FORMED DIMENSIONS
7 – 1. M – TYPE
WATTS | DIMENSIONS(mm) | ||||
L | P±1.0 | D | d±0.02 | H±1.0 | |
1/6W/1/8W/1/16W /1/4WS | 3.3±0.3 | 6 | 1.8±0.3 | 0.40~0.48 | 6.0 |
1/4W / 1/2WS | 6.0±0.3 | 10 | 2.3±0.3 | 0.40~0.52 | 10 |
1/2W / 1WS | 9.0±0.5 | 12.5 | 3.2±0.3 | 0.58 | 10 |
1W / 2WS | 11.0±1.0 | 15 | 4.5±0.5 | 0.68 | 12.5 |
2W / 3WS | 15.0±1.0 | 20 | 5.0±0.5 | 0.78 | 15.0 |
3W / 5WS | 17.0±1.0 | 23 | 6.0±0.5 | 0.78 | 15.0 |
5W | 24.0±1.0 | 33 | 8.0±1.0 | 0.78 | 15.0 |
7 – 2 .MB – TYPE
WATTS | DIMENSIONS (mm) | ||||||
L | P±1.0 | D | d±0.02 | H1±1.0 | H2±1.0 | t±0.2 | |
1/2W / 1WS | 9.0±0.5 | 12.5 | 3.2±0.3 | 0.58 | 6.0 | 5.0 | 1.0 |
1W / 2WS | 11.0±1.0 | 15 | 4.0±0.5 | 0.68 | 6.0 | 5.0 | 1.3 |
2W / 3WS | 15.0±1.0 | 20 | 5.0±0.5 | 0.78 | 10.0 | 5.0 | 1.3 |
3W / 5WS | 17.0±1.0 | 23 | 6.0±0.5 | 0.78 | 10.0 | 5.0 | 1.3 |
5W | 24.0±1.0 | 33 | 8.0±1.0 | 0.78 | 10.0 | 5.0 | 1.3 |
7 – 3. F – TYPE
WATTS | DIMENSIONS(mm) | |||||||
L | P±1.0 | D | d±0.02 | h±1.0 | H±1.0 | Emax |
| |
1/4W / 1/2WS | 6.0±0.5 | 6 | 2.3±0.3 | 0.40~0.52 | 5.0 | 14 | 3 |
|
1/2W / 1WS | 9.0±0.5 | 6 | 3.2±0.3 | 0.58 | 5.0 | 18 | 3.5 |
|
1W / 2WS | 11.0±1.0 | 6 | 4.0±0.5 | 0.68 | 5.0 | 20 | 3.5 |
|
2W / 3WS | 15.0±1.0 | 6 | 5.0±0.5 | 0.78 | 5.0 | 25 | 3.5 |
|
3W / 5WS | 17.0±1.0 | 6 | 6.0±0.5 | 0.78 | 5.0 | 30 | 3.5 |
|
7 – 4. FK1- TYPE ,FK2 – TYPE AND FKK-TYPE
WATTS | DIMENSIONS (mm) | ||||||
L | P±1.0 | D | d±0.02 | h+1/-0 | H±1.0 | Emax | |
1/2W / 1WS | 9.0±0.5 | 6 | 3.2±0.3 | 0.58 | 5 | 18 | 3.5 |
1W / 2WS | 11.0±1.0 | 6 | 4.0±0.5 | 0.68 | 5 | 20 | 3.5 |
2W / 3WS | 15.0±1.0 | 6 | 5.0±0.5 | 0.78 | 5 | 25 | 3.5 |
3W / 5WS | 17.0±1.0 | 6 | 6.0±0.5 | 0.78 | 5 | 30 | 3.5 |
8. Taping Dimension
E D1 D2
P
I
Z
S T W
WATTS | Type | T | p±0.5 | W±0.5 | (D1－D2) MAX | E MAX | Z MAX | S MAX | (I) MAX |
1/6W/ 1/8W 1/16W 1/4WS | T－ 26 | 26±1.5 | 5 | 6 | 0.8 | 0 | 1.2 | 0.8 | 3.2 |
T－ 52 | 52±1.5 | 5 | 6 | 0.8 | 0 | 1.2 | 0.8 | 3.2 | |
1/4W / 1/2WS | T－ 26 | 26±1.5 | 5 | 6 | 0.8 | 0 | 1.2 | 0.8 | 3.2 |
T－ 52 | 52±1.5 | 5 | 6 | 0.8 | 0 | 1.2 | 0.8 | 3.2 | |
1/2W / 1WS | T－ 52 | 52±1.5 | 5 | 6 | 0.8 | 0 | 1.2 | 0.8 | 3.2 |
1W / 2WS | T－ 73 | 73±1.5 | 5 | 6 | 0.8 | 0 | 1.4 | 0.8 | 3.2 |
2W / 3WS | T－ 73 | 73±1.5 | 10 | 6 | 0.8 | 0 | 1.4 | 0.8 | 3.2 |
3W / 5WS | T－ 73 | 73±1.5 | 10 | 6 | 0.8 | 0 | 1.4 | 0.8 | 3.2 |
5W | T－ 73 | 73±1.5 | 10 | 6 | 0.8 | 0 | 1.4 | 0.8 | 3.2 |
9. PACKING
9 – 1 TAPING TYPE
LABEL SPECIFICATION
1 .TYPE 2. WATTS TOLERANCE 3 .RESISTANT QUANTITY 4 .P/N 5. LOT NO.
W
LABEL
H
VIEVHOLE
TYPE | WATTS | W(mm) | H(mm) | L(mm) | Q,TY(pcs) |
T－26 | 1/6W / 1/8W 1/16W 1/4WS | 50 | 72 | 260 | 5000 |
1/4W / 1/2WS | 53 | 103 | 260 | 5000 | |
T－52
| 1/6W / 1/8W 1/16W / 1/4WS | 73 | 72 | 267 | 5000 |
1/4W / 1/2WS | 73 | 102 | 267 | 5000 | |
1/2W / 1WS | 73 | 57 | 255 | 1000 | |
T－73 | 1W / 2WS | 92 | 83 | 267 | 1000 |
2W / 3WS | 92 | 89 | 267 | 1000 | |
3W / 5WS | 92 | 83 | 267 | 500 | |
5W | 92 | 83 | 267 | 500 |
9 – 2 BULK
W
LABLE
標 簽
H
L
WATTS | TYPE | L(mm) | W(mm) | H(mm) | POLY BOG | BOX(pcs) |
1/6W .1/8W.1/16W | P | 250 | 140 | 67 | 1000 | 20000 |
MOLDING | ||||||
1/4W | P | 250 | 140 | 67 | 500 | 10000 |
MOLDING | ||||||
1/2W | P | 250 | 140 | 67 | 500 | 5000 |
MOLDING | ||||||
1W | P | 250 | 140 | 67 | 200 | 2000 |
MOLDING | ||||||
2W | P | 250 | 140 | 67 | 200 | 1000 |
MOLDING | ||||||
3W | P | 250 | 140 | 67 | 100 | 1000 |
MOLDING | ||||||
5W | P | 250 | 140 | 67 | 100 | 1000 |
MOLDING |
