Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-120S030A
Issued date
2012/12/13
page
1/6
1. Scope:
This specification applied to the products of current sensing resistor of metal foil for Lead-Free RLM series
manufactured by TA-I TECHNOLOGY CO., LTD.
2. Type Designation:
RLM
Item
12
Series
No
F
Resistance
tolerance
T
Packaging
C
Power Rating
12:1206
F:±1%
T: Paper Tape
(3216)
G:±2%
S=1/2W
J:±5%
C=1W
A=1/4W
M
Metal
M=MnCu
R001
Resistance
e.g:
R001=1mΩ
3. Construction and Dimension :
3.1 Construction:
Over-Coat
Ni / Sn
Plating
Metal Alloy Plate
3.2 Dimension:
UNIT: mm
Style
L
W
RLM12 3.2±0.20 1.6±0.20
C
t
1.1 ± 0.30
(R=1mΩ)
0.75 ± 0.20
(R=1mΩ)
0.5 ± 0.30
(2mΩ≦R≦30mΩ)
0.6 ± 0.20
(2mΩ≦R≦30mΩ)
Material
Strip: Alloy
Over Coating : molding
Compound UL-94 grade
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Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-120S030A
Issued date
2012/12/13
page
2/6
4. Features:
Type
RLM12
Power Rating
Resistance Value
Operation Temperature Range
Temperature Coefficient of Resistance
Tolerance
Insulation Resistance
Maximum Working Voltage(V)
1/4W & 1/2W & 1W
1~30mΩ
-55℃~+170℃
±200ppm/℃
R=1mΩ
±100ppm/℃
2mΩ≦R≦10mΩ
±75ppm/℃
R>10mΩ
±1%、±2%、±5%
Over 100MΩ
(P*R)1/2
Note*:1 Watts with total solder pad and trace size of 300mm
2
5. Reliability Tests:
Test Items
Temperature Coefficient of
Resistance
Load Life
Short Time Overload
Moisture no Load
Temperature cycle
Resistance to Soldering Heat
Solderability
High Temperature Exposure
Low Temperature Storage
Substrate Bending
Insulation Resistance
Reference
standard
IEC60115-1 4.8
JIS C 5201-1 4.8
Condition of Test
+25℃ ~ +125℃
Test Limits
Refer 4.0
IEC60115-1 4.25.1
JIS C 5201-1 4.25.1
1000hours at rated
power, 70℃, 1.5hours < ±1%
“ON”, 0.5hour “OFF”
IEC60115-1 4.13
JIS C 5201-1 4.13
5 X rated power for 5s < ±1%
IEC60115-1 4.24.2.1a)
85℃, 85%RH, 1000hrs < ±0.5%
JIS C 5201-1 4.24.2.1a)
-55℃ & +155℃,
IEC60115-1 4.19
< ±0.5%
300cycle, 15min per
JIS C 5201-1 4.19
extreme condition
IEC60115-1 4.18
260±5℃ for20±1 sec < ±0.5%
JIS C 5201-1 4.18
At least 95% of surface area
IEC60115-1 4.17
245±5℃, 2±0.5sec
of electrode shall be
JIS C 5201-1 4.17
covered with new solder
IEC60115-1 4.23.2
170℃, 1000hrs
< ±1%
JIS C 5201-1 4.23.2
EC60115-1 4.23.4
-55℃, 1000hrs
100 MΩ
JIS C 5201-1 4.6
Tel:0755-29796190 Fax:0755-29796149 Email:sales@jepsun.com Http://www.jepsun.com
Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-120S030A
Issued date
2012/12/13
page
3/6
Power Ratio (%)
5.1Derating Curve
100
-55
70
170
Ambient Temperature (℃)
5.2 Rated Voltage
The rated voltage is calculated by the following formula:
V: Rated Voltage (V)
V PR
P: Rated Power (W)
R: Resistance Value (Ω)
6. Recommended Solder Pad Dimension
L
b
a
Cu Trace
Sensing Trace
Resistance Range
(Ω)
a
b
L
0.001
1.8
2.3
1.0
0.002~0.030
1.8
1.7
1.6
Unit: mm
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Document No
TRLM-120S030A
Issued date
2012/12/13
page
4/6
Current Sensing Resistors
RLM Series
( Halogen-Free )
7. Number of Package:
5000 Pieces / package
8. Label:
Date Code
Series
Resistance
QTY: 5000 PCS
T019C0071H
LOT NO:
R010 FTC
1019
RLM12FTC
Tolerance
Package
Power Rating
Customer Label
9. Taping
Packing
Type
A
Paper Tape RLM12 2.0±0.15
B
W
F
E
P1
P2
P0
D0
T
3.6±0.2
8.0.±0.2
3.5±0.05
1.75±0.1
4.0±0.1
2.0±0.05
4.0±0.1
ψ1.5
(+0.1/-0)
0.84±0.1
Tel:0755-29796190 Fax:0755-29796149 Email:sales@jepsun.com Http://www.jepsun.com
Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-120S030A
Issued date
2012/12/13
page
5/6
10. Reel Specification
Series
RLM12
ψA
ψB
178±2.0
60.0±1.0
ψC
13.0±1.0
W
T
9.0±1.0
11.5±1.0
11. Peeling Strength of Top Cover Tape
Test Condition: 0.1 to 0.7 N at a peel-off speed of 300 mm / min.
Pull
300 mm/min
Top cover tape
10 ~15∘
standard: 0.1 ~ 0.7 N
Carrier tape
12. Storage Conditions:
Temperature: 5℃~35℃,Humidity:40%~75%
13. Shelf Life:
2 years from manufacturing date.
Tel:0755-29796190 Fax:0755-29796149 Email:sales@jepsun.com Http://www.jepsun.com
Current Sensing Resistors
RLM Series
( Halogen-Free )
Document No
TRLM-120S030A
Issued date
2012/12/13
page
6/6
14. Recommend IR – Reflow profile: (solder: Sn96.5 / Ag3 / Cu0.5)
5
℃ , 5 sec
0
Pre–heat zone : 150 to 180 ℃, 90±30 sec
Soldering zone : 230℃ or higher , 30±10 sec
Peak : 250
15. ECN
Engineering Change Notice: The customer will be informed with ECN if there is significant
modification on the characteristics and materials described in approval sheet.
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