SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Key Features
n Up to 2 Watts at 70C
n Values down to R10
n 8 chip sizes
n Ideal for current
detection
n Value marked on resistor
n Sizes 0201 to 2512
n 0402, 0603, 0805, 1206,
2512 stocked in
distribution
n New Higher Power Version
now available
Applications
n Audio
n Communications
TE Connectivity are pleased to offer this thick film chip resistor for current sensing positions.
n Automotive 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
n Low voltage power supplies
production of a range of IC's for battery charge management and low voltage power
n Power management
supplies, the RL73 Series satisfies the demand for a low ohmic shunt resistor to act as a
applications
current sensor.
Characteristics - Electrical - Standard Power
Type TCR Power rating Resistance TDF TD TE Tape
@ 70C Range
RL73X1H 1000PPM 0.05W R10 - R13 1000 5000 -- Paper tape
RL73V1H 600PPM 0.05W R15 - R47 1000 5000 -- Paper tape
RL73N1H 300PPM 0.05W R51 - R91 1000 5000 -- Paper tape
RL73N1E 300PPM 0.0625W R10 - R91 1000 5000 -- Paper tape
RL73N1J 300PPM 0.1W R10 - R91 1000 5000 -- Paper tape
RL73H2A 100PPM 0.125W R10 - R91 1000 5000 -- Paper tape
RL73K2A 200PPM 0.125W R10 - R91 1000 5000 -- Paper tape
RL73H2B 100PPM 0.25W R10 - R91 1000 5000 -- Paper tape
RL73K2B 200PPM 0.25W R10 - R91 1000 5000 -- Paper tape
RL73H2E 100PPM 0.5W R10 - R91 1000 5000 -- Paper tape
RL73K2E 200PPM 0.5W R10 - R91 1000 5000 -- Paper tape
RL73H2H 100PPM 0.75W R10 - R91 1000 -- 4000 Embossed plastic tape
RL73K2H 200PPM 0.75W R10 - R91 1000 -- 4000 Embossed plastic tape
RL73H3A 100PPM 1W R10 - R91 1000 -- 4000 Embossed plastic tape
RL73K3A 200PPM 1W R10 - R91 1000 -- 4000 Embossed plastic tape
1
1773269 CIS WR 02/2012 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help
and inches unless otherwise reference purposes only.
specified. Values in brackets Specifications subject
are standard equivalents. to change.SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Characteristics - Electrical - High power version
Type TCR Power rating Resistance TDF TD TE Tape
@ 70C Range
RLP73M1E 400PPM 0.125W R051 - R10 1000 5000 -- Paper
RLP73N1E 300PPM 0.125W R110 - R47 1000 5000 -- Paper
RLP73K1E 200PPM 0.125W R51 - 1R0 1000 5000 -- Paper
RLP73M1J 400PPM 0.125W R051 - R10 1000 5000 -- Paper
RLP73N1J 300PPM 0.125W R110 - R47 1000 5000 -- Paper
RLP73K1J 200PPM 0.125W R51 - 1R0 1000 5000 -- Paper
RLP73M2A 400PPM 0.25W R051 - R10 1000 5000 -- Paper
RLP73N2A 300PPM 0.25W R110 - R47 1000 5000 -- Paper
RLP73K2A 200PPM 0.25W R51 - 1R0 1000 5000 -- Paper
RLP73V2B 600PPM 0.5W R010 - R020 1000 5000 -- Paper
RLP73M2B 400PPM 0.5W R022 - R047 1000 5000 -- Paper
RLP73N2B 300PPM 0.5W R051 - R091 1000 5000 -- Paper
RLP73K2B 200PPM 0.5W R10 - 1R0 1000 5000 -- Paper
RLP73V3A 600PPM 2W R010 - R020 1000 -- 4000 Plastic
RLP73M3A 400PPM 2W R022 - R047 1000 -- 4000 Plastic
RLP73N3A 300PPM 2W R051 - R091 1000 -- 4000 Plastic
RLP73K3A 200PPM 2W R10 - 1R0 1000 -- 4000 Plastic
Operating Voltage=(P*R) ; Overload Voltage=2.5*(P*R) ; Operating Current=(P/R)
Maximum operating temperature -55C to +155C
Power Derating Curve
100
80
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 70C, power rating must be derated in accordance with this curve.
Characteristics - Environmental
Item Requirement Test Method
Temperature Coefficient
As Specification -55C ~ +125C, 25C is the reference temperature
of Resistance (TCR):
(0.5%+0.05)
Short Time Overload:
RCWV*2.5 or Max. overload voltage for 5 seconds
for higher Power rating: (1.0% + 0.05)
Insulation Resistance: 10G Max. overload voltage for 1 minute
70 2C, Max. working voltage for 1000 hrs with
Endurance: (1.0%+0.05)
1.5 hrs ON and 0.5 hrs OFF
40 2C, 90-95% R.H. max. working voltage
Damp Heat with Load: (0.5%+0.05)
for 1000 hrs with 1.5 hrs ON and 0.5 hrs OFF
Dry Heat: (0.5%+0.05) at +155C for 1000 hrs
Bending Strength: Bending once for 5 seconds 2010, 2512 sizes: 2mm
As Spec.
Other sizes: 3mm
Solderability: 95% min. coverage 245 5C for 3 seconds
Resistance to Soldering Heat: (0.5%+0.05) 260 5C for 10 seconds
Voltage Proof: No breakdown or flashover 1.42 times RCWV (RMS) for 1 minute
Individual leaching area 5%
Leaching: 2605C for 30 seconds
Total leaching area 10%
Thermal Shock: (0.5%+0.05) -55C to +155C, 5 cycles
Reference Standards: IEC 60115-1, 60068-2-58; JIS-C 5201-1
Storage Temperature: 253C; Humidity < 80%RH
2
1773269 CIS WR 02/2012 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help
and inches unless otherwise reference purposes only.
specified. Values in brackets Specifications subject
are standard equivalents. to change.
Power Ratio (%)