CURRENT SHUNT RESISTORS

Open Air, Low Ohmic, Current Shunt Resistors

LRA

Tokenchina low ohmic current shunt resistor features industry standard Manganin metal resistance elements for temperature stability, super low resistance (2mΩ ~), non-inductive, and suitable for high power AC/DC current detection.


Tokenchina LRA, LRB Low Ohmic Current Shunt Series are RoHS compliant and zero-ohm jumper versions are also available.


LRA Series - Current Shunt, Open Air, Low Ohmic Resistors

Features

  • Low inductance, easy soldering.
  • The resistive element of a Ni-Cu alloys.
  • Tight tolerances ±1%, ±3%, ±5%, and ±10%.
  • Current detective shunt for power supply circuit.

Applications

  • Power Supply, Automotive Motor Control
  • High-end Computer, Process Monitoring, Medical Equipment

Dimension (Unit: mm) - Current Shunt LRA

Type H max. RM
LRA350-009 6.5 10
LRA351-009 10.5
LRA352-009 17.0
LRA351-010 8.0 15
LRA352-010 14.5
LRA352-010 16.1±1.0 14.5±1.0
LRA352-010 17.1±1.0 14.5±1.0
LRA352-011 12.0 20
  • The current shunt resistive elements consist of a flat metal-band. Spot welded Cu-terminals ensure
    high stability of contacts. Thus, this construction results in a non inductive of both high stability and
    overload capacity.

Specification - Current Detection LRA

Type LRA 350-009 351-009
351-010
352-009
352-010
352-011
Power rating P70 W 0.5 1.0 1.5
Resistance range Ω R003~R051 R004~R068 R006~R10
Thermal resistance KW-1 200 100 70
Tolerances % ±1, ±3, ±5, ±10
Temperature range °C -50~300
Temperature coefficient PPM ±25~±100
Max. Cont. working voltage VRMS For all styles
Insulation voltage (1min.) VRMS Non insulated
Insulation resistance Ω Non insulated
linear Derating °C 70~300(0W)
Failure rate (Total, max, 60% conf. lev.) 10-9 * h-1 Ca.10, Depends on value
Endurance (P70, 70,1000h) []% ±3.0
Damp heat ,steady state(40°C,93% r.h.,56d) []% ±0.5
Climatic sequence []% ±0.5
Terminal strength []% ±0.5
Resistance to soldering heat ( 260°C,10s ) []% ±0.2 typ.
Terminal tensile strength N 30
Solder ability s 2.5 Flow time, solder globule test
IEC 60068-2-20-T
Climatic category   55/200/56
E-series   E24≥R010
Making   Value imprinted

Packaging - Current Shunt LRA

Type Packaging Pieces Pack.-Code
LRA350-009 Bulk 200pcs Bulk
LRA351-009
LRA351-010
Bulk 200pcs Bulk
LRA352-010
LRA352-011
Bulk 200pcs Bulk

How to Order - Current Shunt LRA

LRA351-009 R024 5% Bulk
Type
LRA350-009
LRA351-009
LRA351-010
LRA352-009
LRA352-010
LRA352-011
Value
R003 0.003Ω
R051 0.051Ω
R068 0.068Ω
R100 0.100Ω
Tolerance
±1%
±3%
±5%
±10%
Pack - Code
Bulk

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LRA Series - Low Ohmic, Open Air, Current Shunt Resistors