Description
Isabellenhuette SMS-R180-1.0 ISA-PLAN Shunt Resistor — BOLTON SKU 67794.
About the SMS-R180-1.0 ISA-PLAN Shunt Resistor
Isabellenhütte codes its surface-mount shunts by series, resistance and tolerance, so the SMS-R180-1.0 shunt resistor is an SMS-series part of 0.18 ohms, that is 180 milliohms, written R180 in the R-notation which places the decimal point at the letter, held to a plus or minus 1.0 percent tolerance. It belongs to the manufacturer’s ISA-PLAN precision resistor construction, a family built around resistance-alloy elements rather than the thick-film pastes used in general-purpose chip resistors. A current-sensing shunt is used deliberately as a low-value, tightly toleranced resistance placed in series with a load, so that the small voltage developed across it can be measured and converted back into a current reading. At 0.18 ohms the part sits in the range typically used for lower-current measurement, where a larger resistance is needed to develop a usable sense voltage. Case size, power rating and temperature coefficient are confirmed from the manufacturer datasheet supplied with the quotation.
Key specifications
| Manufacturer | Isabellenhütte |
|---|---|
| Series | SMS (ISA-PLAN precision resistor construction) |
| Resistance | 0.18 Ω (180 mΩ) |
| Tolerance | ±1.0% |
| Function | Surface-mount current-sensing shunt resistor |
Typical applications
Shunt resistors of this value are used in current-measurement front ends: battery and charger monitoring, motor and actuator current feedback, overcurrent and short-circuit detection, and power-metering or telemetry channels in avionics and ground equipment. A plus or minus 1 percent tolerance keeps the error contributed by the shunt itself small relative to the amplifier and converter stages that follow it, which matters where the current reading feeds a protection threshold rather than an indicator only.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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