Key Features
■Up to 1 Watt at 70°C
■Values Down to R10
■7 Chip Sizes
■Ideal for Current
Detection
■Value Marked on Resistor
■Lab Kits Available on
Request
■Sizes 0402 to 2512
■0402, 0603, 0805, 1206,
2512 stocked in
Distribution
Type RL73 Series
Tyco 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
Power Max. Max. Resistance Range Taping & Qty
Type T.C.R. Rating Working Overload *F(±1%) G(±2%), Per 7” Reel
@ 70°C Voltage Voltage E96, E24 J(±5%) E24 TP TD TE
RL73N1E ± 300 0.10W - - - R20 - R91 10000 - -
RL73N1J ± 300 - R20 - R91
RL73H2A ± 100 0.125W 1.11V 2.79V R10-10R - - 5000 -
RL73K2A ± 200 - R10-10R
RL73H2B ± 100 0.25W 1.58V 3.95V R10-10R - - 5000 -
RL73K2B ± 200 - R10-10R
RL73H2E ± 100 0.5W 2.23V 5.59V R10-10R - - 5000 -
RL73K2E ± 200 - R10-10R
RL73H2H ± 100 0.75W 2.73V 6.84V R10-10R - - - 4000
RL73K2H ± 200 - R10-10R
RL73H3A ± 100 1.0W 3.16V 7.90V R10-10R - - - 4000
*RL73K3A ± 200 - R10-10R
Maximum Operating Temperature: -55°C to +125°C
-60 -55 -40 -20 0 20 40 60 70 80 100 120125
100
80
60
40
20
0
Rated Load (%)
Ambient Temperature (°C)
If this device is expected to run at full continuous power then action to improve the cooling should be taken. This can be a
metal substrate, copper pad left under the chip, an opening in the PCB or extra large solder pads.
* Recommended Circuit Board Design
For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with this curve.
L
D
W
t
C
How to Order
RL73K 3A R10 J TE
Common Part
See Above
e.g. 3A - 1W
Rated Power
0.1 Ohm
(100 milli Ohm) R10
1 Ohm
(1000 milli Ohm) 1R0
10 Ohm
(10000 milli ohm) 10R
Resistor Value Tolerance
RL73K - Standard
* RL73H -
100ppm/°C
*See table Above
RL73N - 300ppm/°C
J ±5%
G ±2%
*F ±1%
* See Table Above
Packaging
TE - 4000 (RL73_3A,
RL73_2H Only)
TD - 5000 (RL73_2A,
RL73_2B, RL73_2E Only)
TP - 10,000 (RL73_1E,
RL73_1J Only)
Part Number L±0.2 W C D±0.2 t±0.1
RL73 1E 1.0 0.5 ±0.05 0.25 ±0.1 0.2 ±0.1 0.35
RL73 1J 1.6 0.8 ±0.15 0.3 ±0.1 0.3 ±0.2 0.45
RL73 2A 2.0 1.25±0.1 0.4±0.2 0.3 0.5
RL73 2B 3.2 1.6±0.2
RL73 2E 2.6±0.2 0.5±0.3 0.4 0.6
RL73 2H 5.0 2.5±0.2
RL73 3A 6.3 3.1±0.2
0.1
Literature No. 1773269
Issued: 01-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
SMD Low Ohmic - Current Sense Resistors
Type RL73 Series
Dimensions
Power Derating Curve
