LRD3R005FP [TOKEN]
LRD Open Air Four-terminal Resistors; LRD露天四端电阻型号: | LRD3R005FP |
厂家: | TOKEN ELECTRONICS INDUSTRY CO., LTD. |
描述: | LRD Open Air Four-terminal Resistors |
文件: | 总3页 (文件大小:377K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LRD Open Air Four-terminal Resistors
TOKEN
Four-terminal
Open Air Resistors
Token’s Open Air Four-terminal resistors (LRD)
tackle current sensing applications
Preview
Always preferred in current sense applications,
Token’s LRD Series range is available in the
1W, 3W, 5W, 7W and 10W packages,
resistance values down to 0.001 ohm,
with tolerances as tight as 0.50% and
TCRs of 50ppm standard.
The Kelvin (four-terminal) configuration
enables current to be applied through two
opposite terminals and a sensing voltage to
be measured across the other two terminals,
eliminating the resistance and temperature
coefficient of the terminals for a more accurate
current measurement.
With up to 10W power rating and TCRs as low as 50ppm/°C, the LRD Series resistors deliver excellent
performance, making them ideal for a variety of applications. The resistor is constructed using a low-resistance,
low-inductance, high-impulse proprietary metal element that gives the device its extended power and temperature
ratings.
Continually upgrading its resistors to take advantage of modern technologies and manufacturing methods, Token
is now able to offer complete ranges of products which meet the RoHS requirements and in addition to detailing
these, the component selector also provides designers with a comprehensive selection of application notes.
The LRD devices can be manufactured to custom length/width for use as a current shunt. Token will also produce
outside these specifications to meet customer requirements. Contact us with your specific needs.
Features
- Low inductance.
Applications
- Surge/Pulse Applications.
- 4 leads for Kelvin connection.
- Current Sensing Application.
- Decimal marked, silicone coated.
- Tinned copper terminal for easy soldering.
- Radial, self-supporting, design is ideal
for PC board mounting.
- Feed Back & Motor Control.
- High Precision Measurement Instrumentation.
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01 of 03
LRD Open Air Four-terminal Resistors
TOKEN
Specification & Dimensions (Unit: mm)
LSQ-A
L
W
H
P
d
Type
LRD-1
LRD-3
LRD-5
LRD-7
LRD-10
Rating Wattage
Resistance Range (mΩ)
1 ~ 10 mΩ
Tolerance (%)
TCR (ppm/°C)
1W
3W
D(±0.5%)
F(±1%)
G(±2%)
J(±5%)s
±50 ppm/°C
±100 ppm/°C
1 ~ 10 mΩ
5W
0.5 ~ 5 mΩ
7W
0.3 ~ 3 mΩ
10W
0.1 ~ 1 mΩ
Power Derating Curve
Power Derating Curve
120
100
8 0
6 0
4 0
2 0
0
-55 -25
25 40 70
125
175
Ambient Temperature (℃)
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Version 2010
02 of 03
LRD Open Air Four-terminal Resistors
TOKEN
Characteristic Specification
KELVIN ELECTRICAL CONNECTION
R
4
1
3
2
TERMINALS 2 & 3 CURRENT TRACES.
TERMINALS 1 & 4 SENSE TRACES.
Test Items
Test Method
Specification
Operating Temperature Range
Maximum Working Voltage
Terminal Tensile Strength
Withstand Voltage
-55°C ~ 125°C
(P40°C x R)1/2
ΔR≤±1.0%R
50N, 10s
1000V, 1 Min.
No damage on the appearance.
ΔR≤±4.0%R
Short Time Overload
Thermal Shock
5 times rated power, 5s
-55°C~+125°C, 5 cycles, 30 min.
ΔR≤±5.0%R
Load Life
70°C, 1000h 1.5 hours on, 0.5 hours off. ΔR≤±5.0%R
How to Order
LRD
5
R005
F
P
Part Number: LRD
Rated power
Tolerance %
Code
Rated power
1 Watt
Code
D
Tolerance %
±0.5%
±1%
1
3
3 Watt
F
5
5 Watt
G
±2%
7
7 Watt
J
±5%
10
10 Watt
Package-Code
Resistance Value (Ω)
Code
P
Package-Code
Bulk
Code
R005
R05
R1
Resistance Value (Ω)
0.005Ω
0.05Ω
0.1Ω
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