Document No
TRLH-25OS001D
High Power Low Resistance
Chip Resistors
(RLH25 Series)
1. Scope :
Issued date
2011/08/02
Page
1/9
The specification applies for the RLH25 Series of low resistance chip resistors made by TA-I.
2. Features:
Low Resistance and High Accuracy Resistor for Current Detection
Large Electrode (All series)
Good Performance for Heat Dissipation
High Purity Alumina Substrate for High Power Dissipation
Pb-free to Meet RoHS Requirements
3. Applications:
Power Management Applications
Switching Power Supply
DC-DC Converter, Battery Pack, Charger, Adaptor
Portable Instruments (PDA and Cell Phone)
Voltage Regulation Module (VRM)
Computer
4. Type Designation:
RLH
25
F
E
E
R100
High Power Low
Resistance Chip
Resistors
Size
Tolerance of
Resistance at
Packaging
Power Rating
(70
C=1W
D=1.5W
E=2W
)
Nominal
Resistance
25:2512
(6.4x3.2mm)
F:
25℃
1.0%
G: 2.0%
J: 5.0%
E:Embossed
Tape
R100 : 100mΩ
TA-I TECHNOLOGY CO., LTD
Document No
TRLH-25OS001D
High Power Low Resistance
Chip Resistors
(RLH25 Series)
5. Dimensions:
Issued date
2011/08/02
Page
2/9
R100
Unit: mm
Item
RLH25
L
6.30 0.2
w
3.20 0.2
c
0.6 0.3
d
0.5 0.25
t
0.55 0.1
5.1
Derating Curve :
, power rating shall be derated in
For resistors operated at ambient temperature over 70
accordance with figure 1.
P max.
100
50
Power ratio ( % )
0
-55
50
70
100
155
Ambient
Temp. (
C
)
Figure 1
TA-I TECHNOLOGY CO., LTD
Document No
TRLH-25OS001D
High Power Low Resistance
Chip Resistors
(RLH25 Series)
6. Electrical Characteristics
Type
Power Rating
Resistance Value
Operation Temperature Range
Temperature Coefficient of Resistance
Tolerance
Insulation Resistance
Maximum Working Voltage(V)
7. Reliability Tests
(As specified in JIS C 5202)
:
Test Item
Temperature Coefficient of
Resistance
Issued date
2011/08/02
Page
3/9
RLH 25
1W&1.5W&2W
100m ~910m
-55℃~ +155℃
100ppm/
1% , 2% , 5%
Over 100M
(P*R)
1/2
Reference
standard
IEC60115-1-4.8
JIS-C5201-4.8
Condition of Test
25
~ 125
Test Limits
Refer to paragraph 6
Short Time Overload
IEC60115-1-4.13
JIS-C5201-4.13
5 X rated power, 5s
(1.0%+0.5m )
Load Life
IEC60115-1-4.25.1
JIS-C5201-4.25.1
1000 hours at rated power, at 70
1000 hours at rated power ,
40
2 , 90~95% RH
-55
(15 min. ) / +155
5 cycles
(15 min.)
(5.0%+0.5m )
Load Life with Humidity
IEC60115-1-4.24
JIS-C5201-4.24
(5.0%+0.5m )
Thermal Shock
IEC60115-1-4.19
JIS-C5201-4.19
(1.0%+0.5m )
Resistance to Solder Heat
IEC60115-1-4.18
JIS-C5201-4.18
270
5
solder , 10
1 sec
dwell .
(1.0%+0.5m )
Solderability
IEC60115-1-4.17
JIS-C5201-4.17
At least 95% of surface area
245 5 solder, 2 0.5 sec dwell.
of electrode shall be
Solder : Sn96.5 / Ag3.0 / Cu0.5 covered with new solder.
3mm deflection
(1.0%+0.5m
Ω)
Bending Test
IEC60115-1-4.33
JIS-C5201-4.33
Resistance to Dry Heat
IEC60115-1-4.23.2
JIS-C5201-4.23.2
155
5
for 96
4hrs
(1.0%+0.5m )
TA-I TECHNOLOGY CO., LTD
Document No
TRLH-25OS001D
High Power Low Resistance
Chip Resistors
(RLH25 Series)
8. Marking:
From 2512:
Issued date
2011/08/02
Page
4/9
Resistance value is expressed by 4 digits, the first “R” means decimal point and the other
digits represent for the normal resistance in Ω.
eg., 100mΩ= R100
9. Taping & Reel
9.1 Taping Dimensions
9.1.1
4 mm pitch Emboss
Packing
Type
Emboss
RLH25
A
3.6 0.2
B
W
F
E
P
1
P
2
P
0
D
0
+0.1
1.5
-0.1
T
0.85 0.15
6.9 0.2 12.0 0.2 5.5 0.05 1.75 0.1 4.0 0.1 2.0 0.05 4.0 0.05
UNIT: mm
TA-I TECHNOLOGY CO., LTD
Document No
TRLH-25OS001D
High Power Low Resistance
Chip Resistors
(RLH25 Series)
9.2 Reel Specifications
Issued date
2011/08/02
Page
5/9
UNIT: mm
Type
A
178.0 2.0
60.0
B
1.0
13.0
C
1.0
W
13.0
1.0
T
15.5
1.0
RLH25
9.3 Peel – off force :
Peel – off force of paper and blister tape is in accordance with “JIS ”
that is , 0.1 to 0.7 N at a peel-off speed of 300 mm / minute.
top cover tape
pull
300 mm/min
10 ~ 15degree standard: 0.1 ~ 0.7 N
carrier tape
UNIT: mm
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