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HOME>Products TOP>Resistors(SMD)>Thick Film(RK73B•RK73H•RK73Z- RT Flat Chip Resistors Anti Sulfuration)

Surface Mount ResistorsFlat Chip Resistors Anti Sulfuration[RK73B•RK73H•RK73Z-RT]
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Construction Features Applications Dimensions Type Designation Ratings Derating Curve
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Surface Mount Resistors/Flat Chip Resistors Anti Sulfuration RK73B•RK73H•RK73Z-RT
Coating color :
Black (RK73B, RK73Z1J, 2A, 2B, 2E, W2H, W3A)
Blue (RK73H)
Green (RK73Z1E)
  Construction
   
Surface Mount Resistors/Flat Chip Resistors Anti Sulfuration RK73B•RK73H•RK73Z-RT Construction
1. Protective coating
2. Resistive film
3. Inner electrode
4. Ni plating
5. Solder plating
6. Ceramic substrate
 
Features
 
• Excellent anti-sulfuration characteristic due to using high sulfuration-proof inner top electrode material.
• Excellent heat resistance and weather resistance are ensured by the use of metal glaze thick film.
• High stability and high reliability with the triple-layer structure of electrode.
• Suitable for both flow and reflow solderings.
• This products meet EU-RoHS requirements. EU-RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass.
 
 
Applications
 
• Car electronics, Power supply, Industrial robot
 
 
Dimensions
Type
(Inch Size Code)		 Dimensions (mm) Weight(g)
(1000pcs)
L W c d t
1E
(0402)
1.0 +0.1
-0.05
0.50.05 0.20.1
0.25 +0.05
-0.1
0.350.05 0.68
1J
(0603)		 1.60.2 0.80.1 0.30.1 0.30.1 0.450.1 2.14
2A
(0805)		 2.00.2 1.250.1 0.40.2
0.3 +0.2
-0.1
0.50.1 4.54
2B
(1206)		 3.20.2 1.60.2 0.50.3
0.4 +0.2
-0.1
0.60.1 9.14
2E
(1210)		 2.60.2 15.5
W2H
(2010)		 5.00.2 2.50.2 0.650.15 24.3
W3A
(2512)		 6.30.2 3.10.2 37.1
   
   
Type Designation
RK73H   2A   RT   TD   1002   F
         
Product
Code		   Power
Rating		   Terminal
Surface Material		   Taping   Nominal
Resistance		   Resistance
Tolerance
RK73B
RK73H		   1E : 0.063W
1J : 0.1W
2A : 0.125W
2B : 0.25W
2E : 0.33W
     0.5W
W2H : 0.75W
W3A : 1W		   RT : Sn  
TPL•TP : 2mm pitch
punch paper
TD : 4mm pitch
punch paper
TE : 4mm pitch
plastic
embossed
BK : Bulk
  RK73B : 3 digits
RK73H : 4 digits		   D : 0.5%
F : 1%
G : 2%
J : 5% 
               
                 
RK73Z   2A   RT   TD        
       
Product
Code		   Power
Rating		   Terminal
Surface Material		   Taping  
RK73Z   1E : 1A
1J : 1A
2A : 2A
2B : 2A
2E : 2A
W2H : 2A
W3A : 2A		   RT : Sn  
TPL•TP : 2mm pitch
punch paper
TD : 4mm pitch
punch paper
TE : 4mm pitch
plastic
embossed
BK : Bulk
 
           
           
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 Packagings For Chip Components.
   
Ratings

RK73B, RK73H
Type T.C.R.
(×10-6/K)		 Power Rating Resistance Range() Max.Working
Voltage		 Max.Overload
Voltage
RK73H RK73B
D : 0.5%
E24•E96		 F : 1%
E24•E96		 G : 2%
E24		 J : 5%
E24
1E 200 0.063W — 1.02M~ 10M 10 ~ 10M 1 ~ 10M 50V 100V
100 100 ~1M 10 ~1M — —
1J 200 0.1W — 1.02M~ 10M 10 ~ 10M 1 ~ 10M
100 100 ~1M 10 ~1M — —
2A 200 0.125W — 1.02M~ 10M 10 ~ 10M 1 ~ 10M 150V 200V
100 100 ~1M 10 ~1M — —
2B 200 0.25W — 1.02M~ 10M 10 ~ 10M 1 ~ 10M 200V 400V
100 100 ~1M 10 ~1M — —
2E 200 0.5W — — 10 ~ 1k 1 ~ 1k
0.33W 1.1k ~ 1M 1.1k ~ 1M
100 0.5W 100 ~1k 10 ~1k — —
0.33W 1.02 ~1M 1.02k ~1M
W2H 200 0.75W — 1.02M ~10M 10 ~ 10M 1 ~ 10M
100 10 ~1M 10 ~1M — —
W3A 200 1W — 1.02M ~10M 10 ~ 10M 1 ~ 10M
100 10 ~1M 10 ~1M — —

Rated Ambient Temperature : +70
Operating Temperature Range : -55 ~ +155
Rated voltage=√( Power Rating×Resistance value ) or Max. working voltage, whichever is lower.
RK73Z
Type Resistance Current Rating Max.Surge Current Rated Ambient Temperature Operating Temp.Range
1E 50mmax. 1A 2A +70 -55 ~ +155
1J
2A 2A 5A
2B 10A
2E
W2H
W3A

   
Derating Curve

Surface Mount Resistors/Flat Chip Resistors Anti Sulfuration RK73B•RK73H•RK73Z-RT Derating Curve
For resistors operated at an ambient temperature of 70 or above, a power rating (for RK73B, RK73H) or a current rating (for RK73Z) shall be derated in accordance with derating curve on the left.
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