EU
THICK FILM PRECISION RoHS
Flat Chip Resistors (Precision Grade)
RK73H
Construction
1F, 1H,
1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2
Coating colorBlack1F, 1H,
Blue1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2
Features Dimensions
Dimensionsmm
Type Weightg
Inch Size Code 1000pcs
L W c d t
1F
3 0.40.02 0.20.02 0.100.03 0.110.03 0.130.02 0.04
01005
1H
0.60.03 0.30.03 0.10.05 0.150.05 0.230.03 0.14
0201
1E 0.1 0.05
1.0 0.50.05 0.20.1 0.25 0.350.05 0.68
0.05 0.1
0402
R oHS
1J
RoHS
1.60.2 0.80.1 0.30.1 0.30.1 0.450.1 2.14
0603
A EC-Q2001F
2A 0.2
2.00.2 1.250.1 0.40.2 0.3 0.50.1 4.54
0.1
Small size and light weight. 0805
Excellent heat resistance and weather resistance are 2B
1.60.2 9.14
1206
ensured by the use of metal glaze thick film. 0.2
0.4
3.20.2
0.1
2E
High stability and high reliability with the triple-layer
2.60.2 15.5
1210
structure of electrode.
W2H
Applicable to various kinds of automatic mounters for 1 5.00.2 2.50.2 0.50.3 0.60.1 24.3
2010
taping, etc.
W3A
1 0.650.15
Suitable for both flow and reflow solderings.
2512
6.30.2 3.10.2 37.1
Products with lead free termination meet EU-RoHS
W3A2
1
requirements. EU-RoHS regulation is not intended for 2512
Pb-glass contained in electrode, resistor element and glass.
0.2
1 RK73H 2H3A3A2dd0.4 m0.1 m
AEC-Q200 qualified (Exemption 1F). 0.2
1 RK73H 2H, 3A and 3A2 are also still available (differentddimensions=0.4 mm)
0.1
Type Designation Derating Curve
Terminal part temperature
Example
Ambient temperature Terminal part temperature RK73H W3A2
RK73H 2B T TD 1002 F
Product Power Terminal Taping Nominal Resistance
Code Rating Surface Material Resistance Tolerance
1 F 0.03W TSn TX4mm width- 4 digits D0.5%
2
1H0.05W GAu 1mm pitch plastic F 1%
3
1E0.1W LSn/Pb embossed
1 J 0.1W TBLTCTCM
0.125 2mm pitch
2A0.25 press paper
70
2B0.25W TPLTP
2E0.5W 2mm pitch
W2H0.75W punch paper
W3A1W TD4mm pitch
W3A22W punch paper
TE4mm pitch
For resistors operated at an For resistors operated terminal part temperature of described for
plastic
ambient temperature of 70 each size or above, a power rating shall be derated in accordance
embossed
or above, a power rating shall with derating curve.
BKBulk
be derated in accordance with Please refer toIntroduction of the derating curves based on
2 1E1J2A101M
the above derating curve. the terminal part temperature on the beginning of our catalog
before use.
3 1F1HW2HW3AW3A2T
2 Products with gold plated electrodes are also available with 1E, 1J and 2A
types101M, so please consult with us.
Reference Standards
3 With type 1F, 1H, W2H, W3A, W3A2 only T is available as the terminal
surface material.
IEC 60115-8
EU-RoHS
JIS C 5201-8
EIAJ RC-2134C
APPENDIX C
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.
Oct. 2018
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
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
Flat Chip Resistors
Flat Chip Resistors
Ratings
/
Resistance Range
Power Max. Working
Packaging & Q'ty/Reelpcs
Type Rated Ambient Rated Terminal T.C.R. D:0.5% F:1% Max. Overload
Rating Voltage
6
Temp. Part Temp. 10 /K Voltage
E24E96 E24E96 TX TBL TCTCM TPLTP TD TE
4
200 100k2M
1F 0.03W 70 20V 30V 40,000 20,000
4
250 1091k
4
200 101M 1010M TC 10,000
1H 0.05W 70 125 25V 50V
4
400 19.1 TCM15,000
100 101M 101M
TPL20,000
1E 0.1W 70 125 19.76
200 TP 10,000
1.02M10M
100 1.02k1M 1.02k1M
75V 100V
0.1W
200 1.02M10M
1J 70 125 TP 10,000 5,000
100 101k 101k
0.125W
200 19.76
100 101M 101M
2A 0.25W 70 125 200 19.76 150V 200V TP 10,000 5,000 4,000
400 1.02M10M
100 101M 101M
19.76
2B 0.25W 70 125 200 5,000 4,000
1.02M5.6M
400 5.62M10M
100 101M 101M
19.76
2E 0.5W 70 125 200 200V 400V 5,000 4,000
1.02M5.6M
400 5.62M10M
100 101M 101M
19.76
W2H 0.75W 70 125 200 4,000
1.02M5.6M
400 5.62M10M
100 101M 101M
19.76
W3A 1W 70 125 200 200V 400V 4,000
1.02M5.6M
400 5.62M10M
100 101M 101M
19.76
W3A2 2W 95 200 200V 400V 4,000
1.02M5.6M
400 5.62M10M
Operating Temperature Range :551251F551551H1E1J2A2B2EW2HW3AW3A2
Rated voltage Power RatingResistance value or Max. working voltage, whichever is lower.
RK73Z
For flat chip jumper resistor, please refer to RK73Z series.
4 RK73H1FF1%RK73H1H1R9.11MR10ME24
4 The nominal resistance value for RK73H1FF1%and RK73H1H1R9.1, 1MR10Mis E24.
1417
If any questions arise whether to use theRated Ambient Temperatureor theRated Terminal Part Temperaturein your usage conditions, please give priority to theRated
Terminal Part Temperature.
For more details, please refer toIntroduction of the derating curves based on the terminal part temperaturein page 14 to 17.
While using under high power, the temperature of the product may increase depending on the condition of heat dissipation from PCB.
Be sure to check the terminal part temperature as well as precautions to use on delivery specifications before use.
Performance
Performance Requirements
R0.1
Test Items Test Methods
Limit Typical
25
Resistance Within specified tolerance
25/ 55 and 25/ 125
T.C.R. Within specified T.C.R
11F 2.551E2BW3A22
2
OverloadShort time 0.5another Rated voltage2.5 for 5s1E, 2B, W3A2Rated voltage2 for 5s
11FW3A10R1M 0.51FW3A10R1M
2605, 10s1s
Resistance to soldering heat 31HW3AR10, R1M 11HW3AR10, R1M
11F 0.51F
5530min./12530min.100 cycles
Rapid change of temperature 0.5another 0.3another
0.751J, 2A, 2B
21J, 2A, 2B 402, 90%95%RH, 1000h
1.51F
Moisture resistance 3another 1.5 ON/ 0.5 OFF 1.5h ON/ 0.5h OFF cycle
1another
70 21J, 2A, 2B 0.751J, 2A, 2B 702, 1000h
Endurance at 70 3another 1another 1.5 ON/ 0.5 OFF 1.5h ON/ 0.5h OFF cycle
0.51F 125, 1000h1F
1
High temperature exposure 0.3another 155, 1000h1H, 1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2
Precautions for Use
W2HW3AW3A2
FR-41F2E
W2HW3AW3A2
RK73H1F
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, especially when large types of W2H/W3A/W3A2 which have large thermal expansion and also self heating. By general temperature cycle test using
glass-epoxy (FR-4) boards under the maximum/minimum temperatures of operating temperature range, the crack does not occur easily in the types of 1F2E, but the crack tends
to occur in the types of W2H/W3A/W3A2. 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.
Care should be taken that RK73H1F may be damaged when static electricity occurs and is applied in the equipment.
Oct. 2018
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
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