precision thin (metal) film flat chip resistors
(high reliability)
EU
features
•
•
•
•
•
•
•
•
•
•
AEC-Q200 Tested
Endurance at 85°C (1,000h):
∆R
of ±0.1%
High temperature exposure:
∆R
of ±0.25%
High precision type ±0.05% is also available
Low current noise
Improved moisture resistance by high humidity protective
coating
Suitable for control circuits in various industrial equipment
Products meet EU RoHS requirements
Rated ambient temperature: 85°C, rated up to +155°C
Sulfur resistance verified according to ASTM B 809-95
Type
Dimensions
inches
(mm)
c
d
.010±.004
(0.25±0.1)
.012±.004
(0.3±0.1)
.016±.008
(0.4±0.2)
.02±.012
(0.5±0.3)
.02±.012
(0.5±0.3)
.010
(0.25
+.002
-.004
+0.05
)
-0.1
dimensions and construction
c
L
(Inch Size Code)
L
.039
+.004
-.002
+0.1
(1.0
-0.05
)
.063±.008
(1.6±0.2)
.079±.008
(2.0±0.2)
.126±.008
(3.2±0.2)
.126±.008
(3.2±0.2)
W
t
.014±.002
(0.35±0.05)
.018±.004
(0.45±0.1)
.02±.004
(0.5±0.1)
.024±.004
(0.6±0.1)
.024±.004
(0.6±0.1)
c
1E
(0402)
.020±.002
(0.5±0.05)
.031±.004
(0.8±0.1)
.049±.008
(1.25±0.2)
.063±.008
(1.6±0.2)
.098±.008
(2.5±0.2)
W
Sn
Plating
Ni
Plating
1J
(0603)
2A
(0805)
2B
(1206)
2E
(1210)
.012±.004
(0.3±0.1)
.012
(0.3
.016
(0.4
.016
(0.4
+.008
-.004
+0.2
)
-0.1
+.008
-.004
+0.2
-0.1
)
+.008
-.004
+0.2
)
-0.1
t
d
Protective
Coating
Resistive Inner
Electrode
Film
Ceramic
Substrate
Derating Curve
100
80
% Rated Power
% Rated Power
60
40
20
0
-60 -40
-55
100
80
60
40
20
0
-60 -40
-55
1E (90°C)
1J (95°C)
2A (100°C)
2B, 2E (110°C)
-20
0
80 100 120
85
Ambient Temperature
(°C)
20
40
60
140
160
155
-20
0
100 120
90 95 110
Terminal Part Temperature
(°C)
40
60
80
20
140
160
155
For resistors operated at an ambient temperature of 85°C or above, a
power rating shall be derated in accordance with the above derating curve.
For resistors operated at a terminal part temperature of described for each
size or above, a power rating shall be derated in accordance with derating
curve. Please refer to “Introduction of the derating curves based on the
terminal part temperature” in the beginning of our catalog before use.
ordering information
RN73R
Type
2B
Size
1E: 0.063W
1J: 0.1W
2A: 0.125W
2B: 0.25W
2E: 0.25W
T
Termination
Material
T: Sn
TD
Packaging
TP: 2mm pitch punched paper
TD: 4mm pitch punched paper
TE: 4mm pitch plastic embossed
For further information on packaging,
please refer to Appendix A
1002
Nominal
Resistance
3 significant
figures +
1 multiplier
“R” indicates
decimal on
value <100Ω
B
Resistance
Tolerance
A: ±0.05%
B: ±0.1%
C: ±0.25%
D: ±0.5%
F: ±1.0%
25
T.C.R.
(ppm/°C)
05
10
25
50
100
11/04/21
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
27
resistors
RN73R
RN73R
precision thin (metal) film flat chip resistors
(high reliability)
applications and ratings
Rated
Power
Rated
Part
Terminal T.C.R.
Rating Ambient
Designation
(x10
-6
/K)
Part
@ 85°C Temp.
Temp.
±10
1/16W
90°C
85°C
±25
RN73R1E
(.063W)
±50
±5
±10
1/10W
RN73R1J
95°C
85°C
±25
(.10W)
±50
±100
±5
RN73R2A
1/8W
(.125W)
85°C
100°C
±10
±25
±50
±100
±5
±10
±25
±50
±100
±10
±25
±50
±100
Resistance Range (Ω)
E-24, E-96, E-192
(A±0.05%)
—
—
—
100 - 59k
47 - 59k
47 - 59k
—
—
100 - 100k
47 - 100k
47 - 100k
—
—
100 - 300k
47 - 300k
47 - 300k
—
—
100 - 510k
51 - 510k
—
—
(B±0.1%)
47 - 10k
47 - 300k
47 - 300k
100 - 59k
47 - 59k
15 - 1M
15 - 1M
—
100 - 100k
47 - 100k
15 - 1.5M
15 - 1.5M
—
100 - 300k
47 - 300k
15 - 1M
15 - 1M
—
100 - 510k
15 - 1M
15 - 1M
—
(C±0.25%)
47 - 10k
47 - 300k
47 - 300k
—
47 - 59k
15 - 1M
15 - 1M
—
—
47 - 100k
15 - 1.5M
15 - 1.5M
—
—
47 - 300k
15 - 1M
15 - 1M
—
100 - 510k
15 - 1M
15 - 1M
—
(D±0.5%)
47 - 10k
10 - 300k
10 - 300k
—
47 - 59k
10 - 1M
10 - 1M
10 - 1M
—
47 - 100k
10 - 1.5M
10 - 1.5M
10 - 1.5M
—
47 - 300k
10 - 1M
10 - 1M
10 - 1M
100 - 510k
10 - 1M
10 - 1M
10 - 1M
(F±1.0%)
47 - 10k
10 - 300k
10 - 300k
—
47 - 59k
10 - 1M
10 - 1M
10 - 1M
—
47 - 100k
10 - 1.5M
10 - 1.5M
10 - 1.5M
—
47 - 300k
10 - 1M
10 - 1M
10 - 1M
100 - 510k
10 - 1M
10 - 1M
10 - 1M
Maximum
Working
Voltage
50V
Maximum
Overload
Voltage
100V
resistors
75V
150V
150V
300V
RN73R2B
1/4W
(.25W)
85°C
110°C
200V
400V
RN73R2E
1/4W
(.25W)
85°C
110°C
200V
400V
Operating Temperature: -55°C to +155°C
Rated voltage =
√Power
rating x resistance value or max. working voltage, whichever is lower
environmental applications
Performance Characteristics
Parameter
Resistance
T.C.R.
Overload (Short time)
Resistance to Solder Heat
Rapid Change of Temperature
Moisture Resistance
Endurance at 85°C
High Temperature Exposure
Requirement
∆
R ±(%+0.05Ω)
Limit
Typical
Within specified tolerance
—
Within specified T.C.R.
—
±0.05%
±0.01%
±0.05%*
±0.01%
±0.1%*
±0.25%
±0.1%
±0.25%
±0.04%
±0.07%
±0.04%
±0.10%
Test Method
25°C
+25°C/+125°C: T.C.R. ±5 (x10
-6
/K); +25°C/-55°C and +25°C/+155°C: other
Rated Voltage x 2.5 or Max. overload voltage, whichever is less for 5 seconds
260°C ± 5°C, 10 seconds ± 1 second
1E, 1J, 2A: -55°C (30 minutes), +155°C (30 minutes), 1000 cycles
2B, 2E: -55°C (30 minutes), +155°C (30 minutes), 500 cycles
85°C ± 2°C, 85%±5%RH, 1000 hours; 1.5 hr ON, 0.5 hr OFF cycle
85°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
+155°C, 1000 hours
* Depends on resistance value, please contact KOA Speer for details.
Precautions for Use
• The properly and electrostatically measured taping materials are used for the components, but attention should be paid to the fact that there is some danger the
parts absorb on the top tapes to cause a failure in the mounting and the parts are destructed by static electricity (1J, 2A, 2B: 1kV and more, 1E: 0.5kV and more
at Human Body Model 100pF, 1.5kΩ) to change the resistance in the conditions of an excessive dryness or after the parts are given vibration for a long time as
they are packaged on the tapes. Similarly, care should be given not to apply the excessive static electricity when mounting on the boards.
●
Ionic impurities such as flux etc. that are attached to these products or those mounted onto a PCB, negatively affect their moisture resistance, corrosion
resistance, etc. The flux may contain ionic substances like chlorine, acid, etc. while perspiration and saliva include ionic impurities like sodium (Na+), chlorine (Cl−)
etc. Therefore these kinds of ionic substances may induce electrical corrosion when they invade into the products. Either thorough washing or using RMA solder
and flux are necessary since lead free solder contains ionic substances. Washing process is needed, before putting on moisture proof material in order to prevent
electrical corrosion.
●
When heat-resistant masking tapes are attached to the chip resistors at the time of mounting and then detached, there is a possibility of exfoliation of the top
electrodes. It is known that the heat applied in the mounting process will enhance the adhesion strength of the tape adhesive so please avoid the use. If the use of
masking tapes are unavoidable, then please be sure not to attach the tape adhesives directly on the products.
When high-pressure shower cleaning is implemented, there is a possibility of exfoliation of the top electrodes caused by the water pressure stress so please avoid
the implementation. If the implementation is unavoidable, then please evaluate the products beforehand.
For Surface Temperature Rise Graph see Environmental Applications. Additional environmental applications can also be found at www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
10/20/20
28
KOA Speer Electronics, Inc.
• 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
PCB Design
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