SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Key Features
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Up to 2 Watts at 70°C
Values down to R10
8 chip sizes
Ideal for current
detection
Value marked on resistor
Sizes 0201 to 2512
0402, 0603, 0805, 1206,
2512 stocked in
distribution
New Higher Power Version
now available
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Applications
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Audio
Communications
Automotive
Low voltage power supplies
Power management
applications
TE Connectivity are pleased to offer this thick film chip resistor for current sensing positions.
It has a special metal glaze resistive element and a nickel barrier layer beneath the solder to
prolong terminal life. Following the developments by semiconductor manufacturers in the
production of a range of IC's for battery charge management and low voltage power
supplies, the RL73 Series satisfies the demand for a low ohmic shunt resistor to act as a
current sensor.
Characteristics - Electrical - Standard Power
Type
RL73X1H
RL73V1H
RL73N1H
RL73N1E
RL73N1J
RL73H2A
RL73K2A
RL73H2B
RL73K2B
RL73H2E
RL73K2E
RL73H2H
RL73K2H
RL73H3A
RL73K3A
TCR
1000PPM
600PPM
300PPM
300PPM
300PPM
100PPM
200PPM
100PPM
200PPM
100PPM
200PPM
100PPM
200PPM
100PPM
200PPM
Power rating
@ 70°C
0.05W
0.05W
0.05W
0.0625W
0.1W
0.125W
0.125W
0.25W
0.25W
0.5W
0.5W
0.75W
0.75W
1W
1W
Resistance
Range
R10 - R13
R15 - R47
R51 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
R10 - R91
TDF
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
TD
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
--
--
--
--
TE
--
--
--
--
--
--
--
--
--
--
--
4000
4000
4000
4000
Tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Paper tape
Embossed plastic tape
Embossed plastic tape
Embossed plastic tape
Embossed plastic tape
1
1773269 CIS WR 02/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to:
te.com/help
SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Characteristics - Electrical - High power version
Type
RLP73M1E
RLP73N1E
RLP73K1E
RLP73M1J
RLP73N1J
RLP73K1J
RLP73M2A
RLP73N2A
RLP73K2A
RLP73V2B
RLP73M2B
RLP73N2B
RLP73K2B
RLP73V3A
RLP73M3A
RLP73N3A
RLP73K3A
TCR
400PPM
300PPM
200PPM
400PPM
300PPM
200PPM
400PPM
300PPM
200PPM
600PPM
400PPM
300PPM
200PPM
600PPM
400PPM
300PPM
200PPM
Power rating
@ 70°C
0.125W
0.125W
0.125W
0.125W
0.125W
0.125W
0.25W
0.25W
0.25W
0.5W
0.5W
0.5W
0.5W
2W
2W
2W
2W
Resistance
Range
R051 - R10
R110 - R47
R51 - 1R0
R051 - R10
R110 - R47
R51 - 1R0
R051 - R10
R110 - R47
R51 - 1R0
R010 - R020
R022 - R047
R051 - R091
R10 - 1R0
R010 - R020
R022 - R047
R051 - R091
R10 - 1R0
TDF
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
TD
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
--
--
--
--
TE
--
--
--
--
--
--
--
--
--
--
--
--
--
4000
4000
4000
4000
Tape
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Paper
Plastic
Plastic
Plastic
Plastic
Operating Voltage=√(P*R) ; Overload Voltage=2.5*√(P*R) ; Operating Current=√(P/R)
Maximum operating temperature -55°C to +155°C
Power Derating Curve
100
80
Power Ratio (%)
60
40
20
0
0
20
40
60
80
100
120
140
160
180
Ambient Temperature (°C)
* Recommended Circuit Board Design
For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with this curve.
Characteristics - Environmental
Item
Temperature Coefficient
of Resistance (TCR):
Short Time Overload:
Insulation Resistance:
Endurance:
Damp Heat with Load:
Dry Heat:
Bending Strength:
Solderability:
Resistance to Soldering Heat:
Voltage Proof:
Leaching:
Thermal Shock:
Reference Standards: IEC 60115-1, 60068-2-58; JIS-C 5201-1
Storage Temperature: 25±3°C; Humidity < 80%RH
Requirement
As Specification
±(0.5%+0.05Ω)
for higher Power rating: ±(1.0% + 0.05Ω)
≥10G
±(1.0%+0.05Ω)
±(0.5%+0.05Ω)
±(0.5%+0.05Ω)
As Spec.
95% min. coverage
±(0.5%+0.05Ω)
No breakdown or flashover
Individual leaching area ≤5%
Total leaching area ≤10%
±(0.5%+0.05Ω)
Test Method
-55°C ~ +125°C, 25°C is the reference temperature
RCWV*2.5 or Max. overload voltage for 5 seconds
Max. overload voltage for 1 minute
70 ±2°C, Max. working voltage for 1000 hrs with
1.5 hrs “ON” and 0.5 hrs “OFF”
40 ±2°C, 90-95% R.H. max. working voltage
for 1000 hrs with 1.5 hrs “ON” and 0.5 hrs “OFF”
at +155°C for 1000 hrs
Bending once for 5 seconds 2010, 2512 sizes: 2mm
Other sizes: 3mm
245 ±5°C for 3 seconds
260 ±5°C for 10 seconds
1.42 times RCWV (RMS) for 1 minute
260±5°C for 30 seconds
-55°C to +155°C, 5 cycles
2
1773269 CIS WR 02/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to:
te.com/help
SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Dimensions
D
L
W
t
C
1. Alumina Substrate
2. Bottom Electrode (Ag)
3. Top Electrode (Ag-Pd)
4. Edge Electrode (NiCr)
5. Barrier Layer (Ni)
6. External Electrode (Sn)
7. Resistor Layer (NiCr)
8. Overcoat (Epoxy)
9. Marking
Part Number
RL73 1H (0201)
RL(P)73 1E (0402)
RL(P)73 1J (0603)
RL(P)73 2A (0805)
RL(P)73 2B (1206)
RL(P)73 2E (1210)
RL(P)73 2H (2010)
RL73 3A (2512)
RLP73 3A (2512) <R10
RLP73 3A (2512) ≥R10
L
0.58 ±0.05
1.00 ±0.05
1.60 ±0.10
2.00 ±0.15
3.10 ±0.10
3.10 ±0.10
5.00 ±0.20
6.35 ±0.20
6.35 ±0.20
6.35 ±0.20
W
0.29 ±0.05
0.50 ±0.05
0.80 ±0.10
1.25 ±0.15
1.55 ±0.15
2.50 ±0.15
2.50 ±0.15
3.10 ±0.15
3.15 ±0.15
3.15 ±0.15
C
0.15 ±0.05
0.20 ±0.10
0.30 ±0.20
0.40 ±0.25
0.40 ±0.25
0.50 ±0.25
0.50 ±0.25
0.55 ±0.25
0.55 ±0.25
2.10 ±0.10
D
0.12 ±0.05
0.25 ±0.10
0.30 ±0.20
0.30 ±0.20
0.50 ±0.30
0.50 ±0.30
0.60 ±0.30
0.60 ±0.30
0.60 ±0.30
0.60 ±0.30
t
0.23 ±0.05
0.32 ±0.10
0.45 ±0.10
0.55 ±0.10
0.55 ±0.10
0.55 ±0.10
0.60 ±0.15
0.60 ±0.10
0.74 ±0.10
0.74 ±0.10
Recommend Land Pattern
Type
RL73 1H (0201)
RL(P)73 1E (0402)
RL(P)73 1J (0603)
RL(P)73 2A (0805)
RL(P)73 2B (1206)
RL(P)73 2E (1210)
RL(P)73 2H (2010)
RL73 3A (2512)
RLP73 3A (2512) <R10
RLP73 3A (2512) ≥R10
A
0.25
0.5
0.8
1.0
2.0
2.0
3.6
4.9
4.9
1.0
B
0.3
0.5
1.0
1.0
1.15
1.15
1.4
1.6
1.6
3.55
C
0.40 ±0.2
0.60 ±0.2
0.90 ±0.2
1.35 ±0.2
1.70 ±0.2
2.50 ±0.2
2.50 ±0.2
3.10 ±0.2
3.10 ±0.2
3.10 ±0.2
3
1773269 CIS WR 02/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to:
te.com/help
SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Packaging Quantity & Reel Specifications
Type
RL73 1H (0402)
RL(P)73 1E (0402)
RL(P)73 1J (0603)
RL(P)73 2A (0805)
RL(P)73 2B (1206)
RL(P)73 2E (1210)
RL(P)73 2H (2010)
RL(P)73 3A (2512)
øA
178.0 ±1.0
178.0 ±1.0
178.0 ±1.0
178.0 ±1.0
178.0 ±1.0
178.0 ±1.0
178.0 ±1.0
178.0 ±1.0
øB
60.0 +1.0
60.0 +1.0
60.0 +1.0
60.0 +1.0
60.0 +1.0
60.0 +1.0
60.0 +1.0
60.0 +1.0
øC
13.5 ±0.7
13.5 ±0.7
13.5 ±0.7
13.5 ±0.7
13.5 ±0.7
13.5 ±0.7
13.5 ±0.7
13.5 ±0.7
W
9.5 ±0.1
9.5 ±0.1
9.5 ±0.1
9.5 ±0.1
9.5 ±0.1
9.5 ±0.1
13.5 ±1.0
13.5 ±1.0
T
11.5 ±1.0
11.5 ±1.0
11.5 ±1.0
11.5 ±1.0
11.5 ±1.0
11.5 ±1.0
15.5 ±1.0
15.5 ±1.0
Paper
Tape
1000 / 5000
1000 / 5000
1000 / 5000
1000 / 5000
1000 / 5000
1000 / 5000
-
-
Embossed
Plastic Tape
-
-
-
-
-
-
1000 / 4000
1000 / 4000
Paper Tape Specification
Type
RL73 1H
RL(P)73 1E
RL(P)73 1J
RL(P)73 2A
RL(P)73 2B
RL(P)73 2E
A
0.38 ±0.05
0.65 ±0.10
1.10 ±0.10
1.60 ±0.10
1.90 ±0.10
2.90 ±0.10
B
0.68 ±0.05
1.15 ±0.10
1.90 ±0.10
2.40 ±0.20
3.50 ±0.20
3.50 ±0.20
W
8.0 ±0.20
8.0 ±0.20
8.0 ±0.20
8.0 ±0.20
8.0 ±0.20
8.0 ±0.20
E
1.75 ±0.10
1.75 ±0.10
1.75 ±0.10
1.75 ±0.10
1.75 ±0.10
1.75 ±0.10
F
3.50 ±0.05
3.50 ±0.05
3.50 ±0.05
3.50 ±0.05
3.50 ±0.05
3.50 ±0.05
P
0
4.00 ±0.10
4.00 ±0.10
4.00 ±0.10
4.00 ±0.10
4.00 ±0.10
4.00 ±0.10
P
1
2.00 ±0.05
2.00 ±0.05
4.00 ±0.05
4.00 ±0.05
4.00 ±0.05
4.00 ±0.05
P
2
øD
0
T
0.42 ±0.20
0.45 ±0.10
0.70 ±0.10
0.85 ±0.10
0.85 ±0.10
0.85 ±0.10
2.00 ±0.05 1.50+0.1,-0
2.00 ±0.05 1.50+0.1,-0
2.00 ±0.05 1.50+0.1,-0
2.00 ±0.05 1.50+0.1,-0
2.00 ±0.05 1.50+0.1,-0
2.00 ±0.05 1.50+0.1,-0
4
1773269 CIS WR 02/2012
Dimensions are in millimeters
and inches unless otherwise
specified. Values in brackets
are standard equivalents.
Dimensions are shown for
reference purposes only.
Specifications subject
to change.
For email, phone or live chat, go to:
te.com/help
SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Embossed Plastic Tape Specifications
Type
RL(P)73 2H
RL73 3A
RLP73 3A
A
2.80±0.10
3.50±0.10
3.38±0.10
B
5.50±0.10
6.70±0.10
6.68±0.10
W
12.0±0.10
12.0±0.10
12.0±0.30
E
1.75±0.10
1.75±0.10
1.75±0.10
F
5.5±0.05
5.5±0.05
5.5±0.01
P
0
4.00±0.05
4.00±0.05
4.00±0.10
P
1
4.00±0.10
4.00±0.10
4.00±0.10
P
2
2.00±0.05
2.00±0.05
2.00±0.05
øD
0
1.50+0.10
1.50+0.10
1.50+0.05
T
1.00±0.20
1.00±0.20
1.45±0.20
How to Order
RL73
Common Part
H
TCR
X -1000PPM
V - 600PPM
N - 300PPM
RL73
RLP73
H - 100PPM
K - 200PPM
M - 400PPM
See above for
applicability
2A
Size
1H -0201
1E -0402
1J -0603
2A -0805
2B -1206
2E -1210
2H -2010
3A -2512
R10
Resistor Value
F
Tolerance
TD
Packaging
TDF -1000 REEL
0.1 Ohm
(100milliOhm)
R10
0.91 Ohm
(910 milliOhm)
R91
F - ±1%
J - ±5%
TD -5000 REEL
TE -4000 REEL
See above for
applicability
TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks.
Other logos, product and Company names mentioned herein may be trademarks of their respective owners.
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While TE has made every reasonable effort to ensure the accuracy of the information in this datasheet, TE does not guarantee that it is error-free, nor does TE make any other
representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein
at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantability
or fitness for a particular purpose. The dimensions in this datasheet are for reference purposes only and are subject to change without notice. Specifications are subject to change
without notice. Consult TE for the latest dimensions and design specifications.
PCB Design
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