概述
数据手册RK73G2BAT**9762C 概述
耐熱循環 1000 cycles
RK73G2BAT**9762C 数据手册
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(
)
THICK FILM ULTRA PRECISION
RoHS
Flat Chip Resistors (Ultra Precision Grade)
RK73G
■Construction
L
c
c
W
⑥
⑤
④
t
①ꢀProtective coating ④ꢀNi plating
②ꢀResistive film
③ꢀInner electrode
⑤ꢀSolder plating
⑥ꢀCeramic substrate
d
②
③
①
Coating color：Black (1H, 1E), Dark blue (1J, 2A, 2B)
■Dimensions
■Features
・Metal-glaze thick film resistor for surface mounting.
・High precision resistor with T.C.R. ±50×10－6/K and tolerance
±0.25%.
Dimensions（mm）
c
Type
Weigh（t g）
（1000pcs）
（Inch Size Code）
L
W
d
t
1H（0201）
0.6±0.03
0.3±0.03
0.1±0.05
0.2±0.1
0.15±0.05 0.23±0.03
0.14
＋0.05
・Suitable for both flow and reflow solderings.
・Products with lead free termination meet EU-RoHS requirements.
EU-RoHS regulation is not intended for Pb-glass contained in
electrode, resistor element and glass.
1E（0402）
0.25
－0.1
＋0.1
1.0
0.5±0.05
0.35±0.05
0.68
2.14
4.54
9.14
－0.05
1E AT（0402）
1（J 0603）
1J AT（0603）
2A（0805）
0.25±0.10
0.3±0.1
0.35±0.15
0.4±0.2
0.3±0.15
0.3±0.1
0.45±0.1
0.5±0.2
1.6±0.2
2.0±0.2
3.2±0.2
0.8±0.1
1.25±0.1
1.6±0.2
＋0.2
・AEC-Q200 Tested.
0.3
0.5±0.1
－0.1
2A AT（0805）
2B（1206）
0.45±0.25
0.5±0.3
0.6±0.2
0.55±0.1
＋0.2
■Applications
0.4
－0.1
0.6±0.1
・
Car electronics, Industrial equipment, Industrial measurement
2B AT（1206）
0.55±0.35
0.8±0.2
・Replacement of metal film chip resistors.
■Reference Standards
ꢀIEC 60115-8
■Type Designation
ꢀJIS C 5201-8
ꢀEIAJ RC-2134C
ꢀExample
RK73G
2A
ꢀ
T
TD
1002
D
Terminal
Product
Code
Power
Rating
Characteristic
Taping
Nominal
Resistance
4 digits
Resistance
Tolerance
C：±0.25%
D：±0.5%
F：±1%
Surface Material
T：Sn
（L：Sn/Pb
1H：0.05W
Nil：Standard
TCM：2mm pitch
ꢀꢀ press paper
TPL・TP：2mm pitch
punch paper
TD：4mm pitch
punch paper
※2
）
1E：0.1W
ꢀ
A：Heat shock
※1
1J：0.1W
ꢀꢀꢀresistance
2A：0.125Ｗ
2B：0.25W
TE：4mm pitch
plastic embossed
BK：Bulk
※1 With type A（1E,1J,2A,2B）only T is available as the terminal surface material.
No resistance marking.
※2 With type 1H, only T is available as the terminal surface material.
The terminal surface material lead free is standard.
Contact us when you have control request for environmental hazardous material other than the substance
specified by EU-RoHS.
For further information on taping, please refer to APPENDIX C on the back pages.
■Ratings
Resistance Range（Ω）
Rated
Ambient
Temp.
Rated
Terminal
Part Temp.
Packaging & Q’ty /Reel（pcs）
Power
Rating
T.C.R.
Max. Working Max. Overload
Type
C:±0.25％
E24・E96
D:±0.5％
E24・E96
100～1M
F:±1％
－6
（×10 /K）
Voltage
Voltage
※5
E24・E96
TCM
TPL・TP
TD
TE
※3
※3
1H
1E
0.05W0
0.1W00
—
100～1M
25V
50V
15,000
—
—
—
TPL：20,000
TP ：10,000
TP ：10,000
50V
100V
—
—
—
ꢀ
70℃
125℃
±50
※4
1J
2A
2B
0.1W00
0.125W
0.25W0
75V
150V
150V
200V
400V
—
—
—
5,000
5,000 4,000
5,000 4,000
—
100～1M
10～1M
10～1M
※4
※4
—
—
200V
Operating Temperature Range：－55℃～＋155℃
Rated voltage＝ Power Rating×Resistance value or Max. working voltage, whichever is lower.
√‾‾‾‾‾‾‾‾‾‾‾‾
For flat chip jumper resistor, please refer to RK73Z series.
※3 The nominal resistance value for RK73G 1H（D：±0.5％、F：±1％）is E24.
※4 Standard packaging：TD(4mm pitch punch paper)
※5 Standard taping specification of 1H is TCM. Previously available“TC(10,000pcs/Reel)”is not recommended for new designs.
If any questions arise whether to use the“Rated Ambient Temperature”or the“Rated Terminal Part Temperature”in your usage conditions, please give priority to the“Rated Terminal Part Temperature”.
For more details, please refer to“Introduction of the derating curves based on the terminal part temperature”on the beginning of our catalog.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Oct. 2023
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
www.koaglobal.com
■Derating Curve
Ambient temperature
Terminal part temperature
100
80
60
40
20
0
100
80
60
40
20
0
-60 -40 -20
-55
0
20 40 60 80 100120 140 160
125 155
-60 -40 -20
-55
0
20 40 60 80 100120 140 160
70
155
Terminal Part temperature（℃）
Ambient temperature（℃）
For resistors operated at an ambient temperature of 70℃ or higher, the power shall be derated
in accordance with the above derating curve.
When the terminal part temperature of the resistor exceeds the rated terminal part
temperature shown above, the power shall be derated according to the derating curve.
※Please refer to“Introduction of the derating curves based on the terminal part temperature”
on the beginning of our catalog before use.
■Temperature Rise
RK73G 1E-1J
RK73G 2A-2B
Regarding the temperature rise, the
value of the temperature varies per
70
60
50
40
30
20
10
0
60
50
40
30
20
10
0
2B
conditions and board for use since the
1E
1E
1J
1J
temperature is measured under our
measuring conditions.
2B
2A
2A
Measurement condition
Room temperature: 25℃
PCB: FR-4t
= 1.6mm
Cu foil thickness: 35µm
①：Hot spot
②：Terminal
0
25
50
75
100
0
25
50
75
100
Power Rating（ %）
Power Rating（ %）
■One-Pulse Limiting Electric Power
RK73G 1H-2B
100
10
2B
2A
1
1J
The maximum applicable voltage is equal to the max. overload voltage.
1E
Please ask us about the resistance characteristic of continuous applied pulse.
The pulse endurance values are not assured values,so be sure to check the
products on actual equipment when you use them.
0.1
1H
0.001
0.01
0.1
1
10
100
1000
Pulse Duratio n（ ms）
■Performance
Performance RequirementsꢀΔR±（％＋0.1Ω）
Test Items
Test Methods
25℃
Limit
Typical
—
Resistance
Within specified tolerance
＋25℃/＋125℃：1H
＋25℃/－55℃ and ＋25℃/＋125℃：1E, 1J, 2A, 2B
T.C.R.
Within specified T.C.R.
—
Overload（Short time）
2
1
0.6
Rated voltage×2.5 for 5s（1E, 2B：Rated voltage×2 for 5s）
Resistance to
soldering heat
1：1H
0.4：1E, 1J, 2A, 2B
260℃±5℃, 10s±1s
0.5：Characteristic「Nil（」Standard） 0.3：Characteristic「Nil（」Standard）
Rapid change of
temperature
Characteristic「Nil」（Standard）ー 5 5 ℃（ 3 0 m in .）/ ＋ 1 2 5 ℃（ 3 0 m in .）100 cycles
Characteristic「A」（Heat shock resistance）：ー 5 5 ℃（ 3 0 m in .）/ ＋ 1 2 5 ℃（ 3 0 m in .）1000 cycles
1：Characteristic「A」
0.5：Characteristic「A」
（Heat shock resistance）
（Heat shock resistance）
3：1H, 1E
2：1J, 2A, 2B
1：1H, 1E
0.6：1J, 2A, 2B
40℃±2℃, 90%～95%RH, 1000h
1.5h ON/0.5h OFF cycle
Moisture resistance
Endurance at 70℃ or rated 3：1H, 1E
1：1H, 1E
0.6：1J, 2A, 2B
70℃±2℃ or rated terminal part temperature ±2℃ 1000h
1.5h ON/0.5h OFF cycle
terminal part temperature
2：1J, 2A, 2B
High temperature exposure
1
0.6
＋155℃, 1000h
■Precautions for Use
・The substrate of chip resistors is alumina. Cracks may occur at the connection of solder (solder fillet portion) due to the difference of the coefficient of thermal
expansion from a mounting board when heat stress like heat cycle, etc. are repeatedly given to them. Care should be taken to the occurrence of the cracks when
the change in ambient temperature or ON/OFF of load is repeated. The occurrence of the crack by heat stress may be influenced by the size of a pad, solder
volume, heat radiation of mounting board etc., so please pay careful attention to designing when a big change in ambient temperature and conditions for use like
ON/OFF of load can be assumed.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Oct. 2023
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
www.koaglobal.com
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