general purpose 2%, 5% tolerance
thick film chip resistor
EU
features
• Products with lead-free terminations
meet EU RoHS requirements. EU RoHS
regulation is not intended for Pb-glass contained
in electrode, resistor element and glass.
• AEC-Q200 tested: 0201 (1H), 0402 (1E), 0603 (1J),
0805 (2A), 1206 (2B), 1210 (2E), 2010 (2H/W2H),
2512 (3A/W3A/W3A2)
dimensions and construction
L
c
Type*
c
W
Sn
Plating
Ni
Plating
t
Protective
Coating
d
Resistive Inner
Film
Electrode
Ceramic
Substrate
Derating Curve
100
% Rated Power
1H, 1E, 1J, 2A, 2B,
2E, W2H, W3A (1W),
W3A2 (2W)
1F
80
1H, 1E, 1J, 2A, 2B, 2E,
W2H, W3A (1W)
80
100
60
40
60
40
20
0
-60
20
-40
-20
0
0
20
40
60
80
100 120 140
70
Ambient Temperature
(°C)
125
160
For resistors operated at an ambient
temperature of 70°C or higher, the
power shall be derated in accordance
with the above derating curve.
60
80
100 120
140
125
160
155
100
155
W3A2
60
.015±.001 .007±.001 .004±.001 .004±.001 .005±.001
(0.4±0.02) (0.2±0.02) (0.10±0.03) (0.11±0.03) (0.13±0.02)
1H
(0201)
.024±.001 .012±.001 .004±.002 .006±.002 .009±.001
(0.6±0.03) (0.3±0.03) (0.1±0.05) (0.15±0.05) (0.23±0.03)
1E
(0402)
.039
1J
(0603)
.063±.008 .031±.004 .012±.004 .012±.004 .018±.004
(1.6±0.2)
(0.8±0.1)
(0.3±0.1)
(0.3±0.1) (0.45±0.1)
2A
(0805)
.079±.008 .049±.004 .016±.008
(2.0±0.2) (1.25±0.1) (0.4±0.2)
2B
(1206)
.063±.008
.126±.008 (1.6±0.2)
(3.2±0.2) .102±.008
(2.6±0.2)
2E
(1210)
W2H
(2010)
40
20
0
-60
-40
-55
-20
0
20
40
60
80
100 120 140
95
Terminal Part Temperature
(°C)
160
155
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
t
1F
(01005)
2H
(2010)
80
% Rated Power
-55
40
70
Terminal Part Temperature
(°C)
-55
0
-60 -40 -20
20
Dimensions inches (mm)
W
c
d
L
(Inch Size Code)
3A
(2512)
W3A/W3A2
(2512)
(1.0
+.004
-.002
+0.1 )
-0.05
+.002
.02±.002 .008±.004 .01 -.004 .014±.002
(0.5±0.05) (0.2±0.1) (0.25 +0.05) (0.35±0.05)
-0.1
.197±.008 .098±.008
(5.0±0.2)
(2.5±0.2)
.012
(0.3
.016
(0.4
+.008
-.004
+0.2 )
-0.1
.02±.004
(0.5±0.1)
+.008
-.004
+0.2 )
-0.1
.02±.012 .026±.006 .024±.004
(0.5±0.3) (0.65±0.15) (0.6±0.1)
.016
.248±.008 .122±.008
(6.3±0.2)
(3.1±0.2)
(0.4
+.008
-.004
+0.2 )
-0.1
.026±.006
(0.65±0.15)
* Parentheses indicate EIA package size codes.
ordering information
RK73B
2B
Type
Size
1F
1H
1E
1J
2A
2B
2E
W2H
W3A
2H
3A
W3A2
T
Termination
Material
T: Sn
(1F ~ W3A2)
Contact factory
for below options:
L: SnPb
(1E, 1J, 2A, 2B,
2E, 2H, 3A)
G: Au
(1E ~ 2A:
10Ω ~ 1MΩ)
TD
Packaging
TX: 01005 only: 4mm width - 1mm pitch plastic embossed
TBL: 01005 only: 2mm pitch pressed paper
TC: 0201 only: 7" 2mm pitch pressed paper
(TC: 10,000 pcs/reel, TCM: 15,000 pcs/reel)
TPL: 0402 only: 2mm pitch punched paper
TP: 0402, 0603 & 0805: 7" 2mm pitch punched paper
TD: 0603, 0805, 1206 &1210: 7" 4mm pitch punched paper
TE: 0805, 1206, 1210, 2010 & 2512: 7" 4mm plastic
embossed
102
J
Nominal
Resistance
2 significant
figures + 1
multiplier
“R” indicates
decimal on
value
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