TA-I
1. Scope :
Thick Film High Power Chip Resistors
(RMH20 series standard)
Halogen-Free
Document No. TRMH-200S001C
Issued date
page
2014/08/19
1/9
This specification applies for the RMH20 series of thick film high power chip resistors made by TA-I.
2. Construction:
Over Coat (Color : Black)
Conductor
Sn Plating
Resistive Element
Ceramic Substrate
Ni Plating
3. Type Designation:
RMH
Product Code
RMH : High Power
Chip Resistor
20
Size
Power Rating
J
Tolerance
E
Packaging
101
Nominal
Resistance
20-2010(5025)
1W
J -
±5%
F -
±1%
E-Emboss Tape
3 digits, e.g.,:
(E-24) 101 = 100Ω
4 digits, e.g.,:
(E-96) 43R2 = 43.2Ω
TA-I TECHNOLOGY CO., LTD
TA-I
Thick Film High Power Chip Resistors
(RMH20 series standard)
Halogen-Free
Document No. TRMH-200S001C
Issued date
page
2014/08/19
2/9
4.
Dimensions:
102
UNIT: mm
Type
RMH20
L
5.00±0.15
W
2.50±0.15
C
0.60±0.30
d
0.50±0.25
t
0.60±0.10
5. Ratings & Characteristics :
Power
Rating
at 70℃
Max.
Working
Voltage
Max.
Over-
Load
Voltage
Resistance Range(Ω)
T.C.R
(PPM/℃)
F(±1%)
E-96&E-24
10Ω-400Ω
10Ω-400Ω
1Ω-9.1Ω
1Ω-9.1Ω
J(±5%)
E-24
Type
Rated
Voltage
±100
RMH20
1W
Refer
5.2
200V
400V
±200
±400
Operating Temp(℃) :
-55℃
〜
+155℃
Note :
Except for the above standardized products, we also provide the customized products.
TA-I TECHNOLOGY CO., LTD
TA-I
Thick Film High Power Chip Resistors
(RMH20 series standard)
Halogen-Free
Document No. TRMH-200S001C
Issued date
page
2014/08/19
3/9
5.1 Derating Curve :
For resistors operated at ambient temperature over 70℃ , power rating shall be derated in
accordance with figure 1.
P Max
Power ratio(%)
Ambient Temp.(℃)
Figure 1
5.2 Rated Voltage:
The rated voltage is calculated by the following formula:
E=
P*R
E=Rated Voltage(V)
P=Rated Power(W)
R=Resistance Value(Ω)
E.G. : What is RMH20JE101 the rated voltage ?
RMH20JE101 P:1.0W
E=
1.0(W) * 100(Ω)
; R:101 = 100Ω
= 10 (V)
TA-I TECHNOLOGY CO., LTD
TA-I
Thick Film High Power Chip Resistors
(RMH20 series standard)
Halogen-Free
Document No. TRMH-200S001C
Issued date
page
2014/08/19
4/9
6. Reliability Tests:
Test Items
Temperature Coefficient
of Resistance
Reference
standard
IEC60115-1-4.8
JIS-C5201-1-4.8
Condition of Test
-55〜 +125
℃
Test Limits
△R
Refer 5.0
Short Time Overload
IEC60115-1-4.13
JIS-C5201-1-4.13
2.5 X rated voltage
for 5 sec
±(1%
+ 0.05Ω )
Intermittent Overload
EC60115-1-4.39
JIS-C5201-1-4.39
3.0 X rated voltage or Max Overloading
voltage ,1sec “ON” , 25sec “OFF” , 10000
cycles
±
(5.0% + 0.1Ω)
Load Life
IEC60115-1-4.25.1 1000 hours at rated voltage, 70℃ ,
JIS-C5201-1-4.25.1 1.5hours “ON “, 0.5hour “OFF”
1%:±(1.0%+0.05Ω)
5%:±(3.0%+0.1Ω)
Load Life with Humidity
IEC60115-1-4.24
JIS-C5201-1-4.24
1000 hours at rated voltage , 40±2℃,
90~95% RH 1.5hours “ON “, 0.5hour “OFF”
1%:±(1.0%+0.05Ω)
5%:±(3.0%+0.1Ω)
Rapid Change of Temperature
IEC60115-1-4.19
JIS-C5201-1-4.19
-55℃ (30 min. ) / +155
℃(30
min. ) 5 cycles
1%:±(0.5%+0.05Ω)
5%:±(1.0%+0.05Ω)
Solderability
IEC60115-1-4.17
JIS-C5201-1-4.17
245±5℃ solder, 2±0.5 sec dwell.
Solder : Sn96.5 / Ag3.0 / Cu0.5
At least 95% of surface area
of electrode shall be covered
with new solder.
1%:±(0.5%+0.05Ω)
5%:±(1.0%+0.05Ω)
Robustness of Termination
(Bending)
IEC60115-1-4.33
JIS-C5201-1-4.33
2mm deflection
Dielectric Withstanding
Voltage (Voltage Proof)
IEC60115-1-4.7
JIS-C5201-1-4.7
Applying voltage :
500V for a minute .
No abnormalities such as
flashover, burning dielectric
breakdown shall appear.
Insulation Resistance
IEC60115-1-4.6
JIS-C5201-1-4.6
Applying voltage 100V for 1 minute.
≧1GΩ
Resistance to Dry Heat
IEC60115-1-4.23.2
155±5℃ for 96±4Hrs
JIS-C5201-1-4.23.2
1%:±(1.0%+0.05Ω)
5%:±(2.0%+0.1Ω)
Resistance to Solder Heat
IEC60115-1-4.18
JIS-C5201-1-4.18
270
±5℃
solder , 10
±1
sec dwell .
1%:±(0.5%+0.05Ω)
5%:±(1.0%+0.05Ω)
Note* : RCWV : Rated continuous working voltage . 2 watts total Solder pad and trace size of 300mm.
TA-I TECHNOLOGY CO., LTD
TA-I
Thick Film High Power Chip Resistors
(RMH20 series standard)
Halogen-Free
Document No. TRMH-200S001C
Issued date
page
2014/08/19
5/9
7. Marking :
7.1
±5%(E24)
Resistance value is expressed by 3 digits, the first two digits represent the significant figures of
nominal resistance value inΩ, and the third digit represents exponent for base of 10.
E.G. :,
470
= 47×10
0
= 47Ω
7.2
±1%
(E96 )
Resistance value is expressed by 4 digits , the first three digits represent the significant
figures of nominal resistance value inΩ, and the fourth digit represents exponent for base of 10.
E.G. :
1000 = 100×10
0
= 100Ω
8. Taping & Reel :
8.1 Taping Dimensions
8.1.1
4 mm pitch Emboss :
Packing
Emboss
Type
A
B
W
F
E
P
1
P
2
P
0
D
0
+0.1
-0
T
0.85±0.15
RMH20
2.8±0.2 5.3±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
ψ1.5
Package
Type
RMH
Size
20
Emboss Plastic Tape
4 mm pitch
4000
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