EU
JUMPER
RoHS
Flat Chip Jumper Resistors
RK73Z
■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：Green (1H, 1E)
Black (1F, 1J, 2A, 2B, 2E, W2H, W3A)
■Dimensions
Dimensions（mm）
c
Type
Weigh（t g）
■Features
（Inch Size Code）
（1000pcs）
L
W
d
t
・Wide lineup from 01005 to 2512 size.
1F（01005）
1H（0201）
0.4±0.02
0.6±0.03
0.2±0.02 0.10±0.03 0.11±0.03 0.13±0.02
0.04
・Excellent heat resistance and weather resistance, because of the
use of glaze thick film as resistive film.
・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.
0.3±0.03
0.1±0.05 0.15±0.05 0.23±0.03
0.14
＋0.05
1E（0402）
0.2±0.1
0.25±0.10
0.3±0.1
0.25
－0.1
＋0.1
1.0
0.5±0.05
0.35±0.05
0.45±0.1
0.68
2.14
4.54
9.14
－0.05
1E AT（0402）
1J（0603）
0.3±0.15
0.3±0.1
1.6±0.2
2.0±0.2
0.8±0.1
1.25±0.1
1.6±0.2
1J AT（0603）
2A（0805）
0.35±0.15
0.4±0.2
0.5±0.2
＋0.2
・AEC-Q200 Tested (Exemption 1F).
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±0.10
＋0.2
■Reference Standards
ꢀIEC 60115-8
ꢀJIS C 5201-8
0.4
－0.1
2B AT（1206）
3.2±0.2
0.55±0.35
0.8±0.2
＋0.2
2E（1210）
2.6±0.2
2.5±0.2
3.1±0.2
0.4
0.6±0.1
15.5
24.3
37.1
－0.1
ꢀEIAJ RC-2134C
※1
W2H （2010） 5.0±0.2
0.5±0.3
0.65±0.15
※1
W3A （2512） 6.3±0.2
＋0.2
※1 RK73Z 2H and RK73Z 3A are also still available (differen“t d”dimensions=0.4ꢀ mm)
－0.1
■Type Designation
ꢀExample
RK73Z
2B
ꢀ
T
TD
Product
Code
Current
Rating
Characteristic
Terminal
Taping
Surface Material
※2 With type A（1E,1J,2A,2B）only T is available as the terminal
surface material. No resistance marking.
※3 Products with gold plated electrodes are also available with 1E, 1J
and 2A types, so please consult with us.
※4 With type 1F and 1H, W2H, W3A 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.
ꢀꢀ1F
：
：
：
：
：
：
：
：
：
0.5A
ꢀ
Nil: Standard
ꢀ T
ꢀ G
（L
：
：
：
Sn
TX : 4mm width-1mm pitch
plastic embossed
TBL・TCM : 2mm pitch
press paper
TPL・TP : 2mm pitch
punch paper
TD : 4mm pitch punch paper
TE : 4mm pitch plastic embossed
BK : Bulk
※3
ꢀꢀ1H
ꢀꢀ1E
ꢀꢀ1J
ꢀꢀ2A
ꢀꢀ2B
ꢀꢀ2E
ꢀW2H
ꢀW3A
0.5A
1A
1A
2A
2A
2A
2A
2A
ꢀ A: Heat shock
Au
※2
※4
resistance
Sn/Pb
）
■Ratings
Packaging & Q’ty /Reel（pcs）
Rated Ambient
Temp.
Rated Terminal
Part Temp.
—
Max. Overload
Current
Operating
Type
Resistance
Current Rating
※6
Temp. Range
TX
TBL
TCM
—
15,000
TPL・TP
—
—
TD
—
—
TE
—
—
1F
1H
－55℃～＋125℃
40,000 20,000
70℃
50mΩ max.
50mΩ max.
0.5A
1A
125℃
—
—
—
—
TPL：20,000
TP ：10,000
1E
—
—
—
70℃
125℃
1A
2A
5A
※5
※5
1J
2A
2B
2E
W2H
W3A
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
TP ：10,000
TP ：10,000
5,000
5,000
5,000
5,000
—
—
※5
※5
※5
4,000
4,000
4,000
－55℃～＋155℃
—
—
—
—
70℃
125℃
50mΩ max.
2A
10A
4,000
4,000
—
※5 Standard packaging：TD(4mm pitch punch paper)
※6 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 tovIntroduction 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.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Aug. 2023
Oct. 2023
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
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.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
www.koaglobal.com
www.koaglobal.com
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