Lead-Free Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-100S005D
Issued date
2017/12/21
page
1/6
TA-I TECHNOLOGY CO., LTD
1. Scope：
This specification applied to the products of Lead-Free current sensing resistor of metal foil for Lead-Free
RLM series manufactured by TA-I TECHNOLOGY CO.,LTD.
2. Type Designation：
RLM 10 F T S M R003
Item Series Resistance Packaging Power Rating Metal Resistance
No. tolerance
10:0805(2012) F:±1% T: Paper B=1/8W M=MnCu e.g :
G:±2% A=1/4W R003=3mΩ
J:±5% S=1/2W R020=20mΩ
3. Construction and Dimension ：
3.1 Construction:
3.2 Dimension:
unit: mm
Style
L
W
C
t
Material
RLM10
2.0±0.1
1.25±0.1
0.65±0.2 (1＜R≦2)
0.6 ±0.20
Strip： Alloy
Over Coating：molding
Compound UL-94V-0 grade
0.4±0.2 (3≦R≦20)
Metal Alloy Plate
Over-Coat
Matte Sn
(R＝2)
(R＝1.5)
(3≦R≦20)
Lead-Free Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-100S005D
Issued date
2017/12/21
page
2/6
TA-I TECHNOLOGY CO., LTD
4. Features:
Type
RLM10
Power Rating
1/8W、1/4W、1/2W
Resistance Value
1.5~20 mΩ
Operation Temperature Range
-55℃~+170℃
Temperature Coefficient of Resistance
±50ppm/℃
Tolerance
±1%、±2%、±5%
Insulation Resistance
Over 100MΩ
Maximum Working Voltage(V)
(P*R)
1/2
5. Reliability Tests :
Test Items
Reference
standard
Condition of Test
Test Limits
Temperature Coefficient of
Resistance
IEC60115-1 4.8
JIS C 5201-1 4.8
+25℃ ~ +125℃
Refer 4.0
Load Life
IEC60115-1 4.25.1
JIS C 5201-1 4.25.1
1000hours at rated power, 70
℃, 1.5hours “ON”, 0.5hour
“OFF”
< ±1%
Short Time Overload
IEC60115-1 4.13
JIS C 5201-1 4.13
5 X rated power for 5s
< ±0.5%
Moisture no Load
IEC60115-1 4.24.2.1a)
JIS C 5201-1 4.24.2.1a)
85℃, 85%RH, 1000hrs
< ±1%
Temperature cycle
IEC60115-1 4.19
JIS C 5201-1 4.19
-55℃ & +155℃, 300cycle,
15min per extreme condition
< ±1%
Resistance to Soldering Heat
IEC60115-1 4.18
JIS C 5201-1 4.18
260±5℃ for10±1 sec
< ±0.5%
Solderability
IEC60115-1 4.17
JIS C 5201-1 4.17
245±5℃, 2±0.5sec
At least 95% of surface
area of electrode shall be
covered with new solder
High Temperature Exposure
IEC60115-1 4.23.2
JIS C 5201-1 4.23.2
170℃, 1000hrs
< ±1%
Low Temperature Storage
EC60115-1 4.23.4
JIS C 5201-1 4.23.4
-55℃, 1000hrs
<±0.5%
Substrate Bending
IEC60115-1 4.33
JIS C 5201-1 4.33
Bending width 2mm
< ±1%
Insulation Resistance
IEC60115-1 4.6
JIS C 5201-1 4.6
100V DC for 1 minute
>100 MΩ