Approval Sheet
for
Power Cement Resistors
Low Ohmic & Low Inductance Type
LLC Series
±1% & ±2% & ±3% & ±5%
YAGEO CORPORATION
Headquarters: 3F, No.233-1, Pao Chiao Rd., Xindian, Taipei, Taiwan, R.O.C.
Tel: 886-2-6629-9999 Fax: 886-2-6628-8885
URL: www.yageo.com
Page-1
Rev.
Description
Issue Date
Drawn
Approved
00
issue new spec.
May 25, 2012
Feng Ye
Ken Hsu
01
Revised power code and packaging
method.
LLC450 is included
Nov. 19, 2015 Feng Ye
Flora Shen
Jul. 19, 2016
Flora Shen
02
Feng Ye
Description
Power Cement Resistors, Low Ohmic & Low Inductance Type
Series
LLC
Rev.
Page-2
02
1.
PRODUCT:
Power Cement Resistors. Low ohmics, tight tolerance available, low inductance for high
frequence.
(LLC SERIES)
2.
PART NUMBER:
Part number of the power cement resistor is identified by the name, power, tolerance,
packing, temperature coefficient and resistance value.
Example:
LLC
500
F
B
-
0R01
(1)
(2)
(3)
(4)
(5)
(6)
Series Power Resistance Packing Temperature Resistance
Name Rating Tolerance Style
Coefficient
Value
of Resistance
(1) Style:LLC SERIES: Axial Type
(2) Power Rating: 450=4.5W、500=5W、600=6W、800=8W、10A=10W
(3) Tolerance: F=±1%、G=±2%、H=±3%、J = ±5%
(4) Packaging Type: B = Bulk Packing
R = Paper Taping Reel (on request)
(5) Temperature Coefficient : “-“=base on spec.
(6) Resistance Value:
Example:0R005, 0R01, 0R1,……
Page-3
3.
ELECTRICAL CHARACTERISTICS
STYLE
Power Rating at 70 ℃
Max. Cont. Work. Voltage
LLC450
4.5W
Thermal resistancev (℃/W)
65
Resistance Range
Insulation Voltage (1min.)
Temperature Coefficient
0.003Ω
0.004~0.051Ω
0.004~0.068Ω
2000V
+200~+1200PPM/℃ (Depends on value)
Operating Temp. Range
- 55 ℃ to + 250 ℃
4.
DERATING CURVE
5.
DIMENSIONS
LLC500
5W
LLC600
6W
LLC800
8W
LLC10A
10W
50
35
30
P70 R
0.005~0.1Ω
Dimensions in mm
* 6mm, reduced solderability in this area
Unit:mm
TYPE
L1
L2
W
H
LLC450
18
40
6.4 ± 0.3
6.4 ± 0.3
LLC500
40
6.4 ± 0.3
6.4 ± 0.3
LLC600
18
25
45
6.4 ± 0.3
6.4 ± 0.3
LLC800
25
45
9.0 ± 0.3
9.0 ± 0.3
LLC10A
38
60
9.0 ± 0.3
9.0 ± 0.3
Page-4
Measuring length L2: Resistance value is measured over the centered length L2 on terminals free of oxide and
contaminations. Differing conditions require adequate corrections (Rterminal =0.4mΩ /cm)
6.
ENVIRONMENTAL CHARACTERISTICS
(1) Short Time Over Load Test
At 2.5 times of the rated voltage applied for 5 seconds, the resistor should be free from defects after the
resistor is released from load for about 30 minutes
Short Time Overload Voltage =
2.5 * Power Rating Resistance Value
The change of the resistance value should be within ± 2.0 %
(2) Voltage Proof on Insulation
The resistor shall be clamped in the trough of a 90° metal V Block. Apply the insulation voltage of 2000V
between the terminals connected together with the block for about 60 seconds.
The resistor shall be able to withstand without breakdown or flashover.
(3) Temperature Coefficient Test
Test of resistors above room temperature 100°C ± 2°C ( Testing Temperature 115°C to 130°C ) at the
constant temperature silicon plate for over 5 minutes. Then measure the resistance value.
The Temperature Coefficient is calculated by the following equation and its value should be within the
range of requested.
Re sistor Temperature Coefficient
R
R0
t
to
R R0
1
10 6
R0
t t0
= Resistance value under the testing temperature
= Resistance value at the room temperature
= The testing temperature
= Room temperature
(4) Insulation Resistance
Apply "measuring voltage" between protective coating and termination for 1 min.,then measure. The
measuring voltage shall be either 100V±15V d.c. for resistors with an insulation voltage lower than 500V
or 500V±50V d.c. for resistors with an insulatin voltage equal to or greater than 500V.
The test resistance should be higher than 10,000 Mohm.
(5) Solderability
Immerse the specimen into the solder pot at 245 ± 5 °C for 3 ± 0.5 seconds.
At least 90% solder coverage on the termination.
(6) Solvent Resistance of Marking
The specimen into the appropriate solvent of IPA condition of ultrasonic machine for 5± 0.5 minutes.
The specimen is no deterioration of coatings and color code.
(7) Robustness of Terminations
Direct Load – Resistors shall be held by one terminal and the load shall be gradually applied in the
direction of the longitudinal axis of the resistor unit the applied load reached the requirement.
The load shall be held for 10 seconds. The load of weight shall be 5 kg (50N ).
Page-5
(8) Damp Heat Steady State
Place the specimen in a test chamber at 40 °C and 93 % relative humidity. Apply the rated voltage to
the specimen at the 1.5 hours on and 0.5 hour off cycle. The total length of test is 56 days
The change of the resistance value shall be within ±0.5%
(9) Endurance at 70 °C
Placed in the constant temperature chamber of 70 ± 3 °C the resistor shall be connected to the lead wire
at the point of 25mm. Length with each terminal, the resistors shall be arranged not much effected
mutually by the temperature of the resistors and the excessive ventilation shall not be performed, for 90
minutes on and 30 minutes off under this condition the rated D.C. voltage is applied continuously for
1000+48/-0 hours then left at no-load for 1hour, measured at this time the resistance value。
The change of the resistance value shall be within ± 3.0 %.
There shall be no remarkable change in the appearance and the color code shall be legible after the test.
(10) Temperature Cycling Test
The temperature cycle shown in the following table shall be repeated 5 times consecutively. The
measurement of the resistance value is done before the first cycle and after ending the fifth cycle,
leaving in the room temperature for about 1 hour。
Temperature Cycling Conditions:
Step
Temperature(°C)
Time (minute)
1
-55 ± 3
30
2
25 ± 3
10 ~ 15
3
155 ± 3
30
4
25 ± 3
10 ~ 15
The change of the resistance value shall be within ± 0.5 %
After the test the resistor shall be free from the electrical or mechanical damage.
(11) Resistance to Soldering Heat
The terminal lead shall be dipped into the solder pot at 260 ± 3 °C for 10 ± 1.0 seconds up to 2.5 ~ 3.5
mm.
The change of the resistance value shall be within ± 0.2 %
7.
PACKAGING
The standard packaging for KN in axial type is bulk, dimensions below.
Type
Packaging
Pieces
Pack.-Code
LLC450
Bulk
200
B
LLC500
Bulk
200
B
LLC600
Bulk
200
B
LLC800
Bulk
200
B
LLC10A
Bulk
200
B
Page-6
8.
Type
Packaging
Pieces
Pack.-Code
R
C
85
S
10
LLC450
Taped in Reel
1000
LLC500
Taped in Reel
1000
R
85
10
LLC600
Taped in Reel
1000
R
95
10
LLC800
Taped in Reel
500
R
95
10
LLC10A
Taped in Reel
500
R
95
10
SPECIAL TYPE ( FORMING DIMENSIONS )
This type resistor, is also available in a different pre-forming, as shown below, other’s upon request.
9.
Plant Address
A.
China Dongguan Plant
7-1, Gaoli Road, Gaoli Industrial Zone
Tangxia Zhen, Dongguan, Guangdong, China
(廣東省東莞市塘廈鎮高麗工業區高麗路 7-1 號)
Tel. 86-769-8772 0275
Fax. 86-769-8772 0275 #4333
B.
China Suzhou Plant
No.158, Jinchang Road, No.1 Building of Nan Bang IND. Zone,
Mu Du New District, Suzhou, China
(江蘇省蘇州市木瀆新區金長路 158 號南濱工業區 1 號)
Tel. 86-512-66518889
Fax. 86-512-66519889
Page-7
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