TT Welwyn : Current Sense (1)
A Line Input Resistor is typically a fixed resistor connected in series with the mains input of a power supply.
It serves to (a) limit inrush surge current at switch on. (b) Contribute to lightening surge protection. (c) Prevent fire by fusing safely.
Data Sheets are shown where available.
| Image | Type | Description | Mounting | Package | Technology | Power Rating | Limiting Element Voltage | Resistance Min | Resistance Max | Best tolerance (± %) | Best TCR (± ppm/ °C) | Application | Approvals | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
4LPW10 | NOT RECOMMENDED FOR NEW DESIGNS Four-terminal current sensing wirewound | Datasheet | Through hole | Ceramic case power | Wirewound | 10W | 0mV | 10mΩ | 1Ω | 1% | 40 | Current sense | None |
|
4LPW15 | NOT RECOMMENDED FOR NEW DESIGNS Four-terminal current sensing wirewound | Datasheet | Through hole | Ceramic case power | Wirewound | 15W | 0mV | 10mΩ | 1Ω | 1% | 40 | Current sense | None |
|
4LPW3 | NOT RECOMMENDED FOR NEW DESIGNS Four-terminal current sensing wirewound | Datasheet | Through hole | Ceramic case power | Wirewound | 3W | 0mV | 10mΩ | 1Ω | 1% | 40 | Current sense | None |
|
4LPW5 | NOT RECOMMENDED FOR NEW DESIGNS Four-terminal current sensing wirewound | Datasheet | Through hole | Ceramic case power | Wirewound | 5W | 0mV | 5mΩ | 1Ω | 1% | 40 | Current sense | None |
|
4LPW7 | NOT RECOMMENDED FOR NEW DESIGNS Four-terminal current sensing wirewound | Datasheet | Through hole | Ceramic case power | Wirewound | 7W | 0mV | 5mΩ | 1Ω | 1% | 40 | Current sense | None |
 |
CSL | Four-terminal open air low ohm current sense | Datasheet | Through hole | Radial | Metal element | 5W | 0mV | 0.25mΩ | 2.5mΩ | 1% | 55 | Current sense | None |
|
CSLS | Four-terminal open air low ohm current sense | Datasheet | Through hole | Radial | Metal element | 5W | 0mV | 0.25mΩ | 2.5mΩ | 1% | 25 | Current sense | None |
 |
LCS0603 | Low Value Current Sense Thin Film Chip | Datasheet | SMD - solder | Chip 0603 | Metal film | 100mW | 50V | 200mΩ | 1Ω | 0.5% | 50 | Current sense | None |
|
LCS0805 | Low Value Current Sense Thin Film Chip | Datasheet | SMD - solder | Chip 0805 | Metal film | 125mW | 100V | 200mΩ | 1Ω | 0.5% | 50 | Current sense | None |
|
LCS1206 | Low Value Current Sense Thin Film Chip | Datasheet | SMD - solder | Chip 1206 | Metal film | 250mW | 150V | 100mΩ | 1Ω | 0.5% | 50 | Current sense | None |
|
LCS2010 | Low Value Current Sense Thin Film Chip | Datasheet | SMD - solder | Chip 2010 | Metal film | 500mW | 150V | 100mΩ | 1Ω | 0.5% | 50 | Current sense | None |
|
LCS2512 | Low Value Current Sense Thin Film Chip | Datasheet | SMD - solder | Chip 2512 | Metal film | 1W | 150V | 100mΩ | 1Ω | 0.5% | 50 | Current sense | None |
 |
LOB1 | Low resistance metal element | Datasheet | Through hole | Axial | Metal element | 1W | 0mV | 5mΩ | 100mΩ | 1% | 80 | Current sense | None |
|
LOB3 | Low resistance metal element | Datasheet | Through hole | Axial | Metal element | 3W | 0mV | 5mΩ | 100mΩ | 1% | 60 | Current sense | None |
|
LOB5 | Low resistance metal element | Datasheet | Through hole | Axial | Metal element | 5W | 0mV | 5mΩ | 100mΩ | 1% | 40 | Current sense | None |
 |
LPW10 | NOT RECOMMENDED FOR NEW DESIGNS Extremely low resistance power wirewound | Datasheet | Through hole | Axial | Metal element | 10W | 0mV | 10mΩ | 150mΩ | 1% | 30 | Current sense | None |
|
LPW15 | NOT RECOMMENDED FOR NEW DESIGNS Extremely low resistance power wirewound | Datasheet | Through hole | Axial | Metal element | 15W | 0mV | 10mΩ | 150mΩ | 1% | 30 | Current sense | None |
|
LPW3 | NOT RECOMMENDED FOR NEW DESIGNS Extremely low resistance power wirewound | Datasheet | Through hole | Axial | Metal element | 3W | 0mV | 5mΩ | 150mΩ | 1% | 30 | Current sense | None |
|
LPW5 | NOT RECOMMENDED FOR NEW DESIGNS Extremely low resistance power wirewound | Datasheet | Through hole | Axial | Metal element | 5W | 0mV | 5mΩ | 150mΩ | 1% | 30 | Current sense | None |
|
LPW7 | NOT RECOMMENDED FOR NEW DESIGNS Extremely low resistance power wirewound | Datasheet | Through hole | Axial | Metal element | 7W | 0mV | 10mΩ | 150mΩ | 1% | 30 | Current sense | None |
 |
LR1206 | Low value flat chip | Datasheet | SMD - solder | Chip 1206 | Thick film | 500mW | 0mV | 3mΩ | 1Ω | 1% | 100 | Current sense | AEC-Q200 |
|
LR2010 | Low value flat chip | Datasheet | SMD - solder | Chip 2010 | Thick film | 1W | 0mV | 3mΩ | 1Ω | 1% | 100 | Current sense | AEC-Q200 |
|
LR2512 | Low value flat chip | Datasheet | SMD - solder | Chip 2512 | Thick film | 2W | 0mV | 3mΩ | 1Ω | 1% | 100 | Current sense | AEC-Q200 |
 |
LRCS0402 | Low value current sense surface mount chip | Datasheet | SMD - solder | Chip 0402 | Thick film | 63mW | 0mV | 50mΩ | 1Ω | 1% | 200 | Current sense | None |
|
LRCS0603 | Low value current sense surface mount chip | Datasheet | SMD - solder | Chip 0603 | Thick film | 100mW | 0mV | 20mΩ | 1Ω | 1% | 200 | Current sense | None |
|
LRCS0805 | Low value current sense surface mount chip | Datasheet | SMD - solder | Chip 0805 | Thick film | 250mW | 0mV | 20mΩ | 1Ω | 1% | 200 | Current sense | None |
 |
LRF3W | Low value 3W chip | Datasheet | SMD - solder | Chip 1225 | Thick film | 3W | 0mV | 3mΩ | 100mΩ | 1% | 100 | Current sense | AEC-Q200 |
 |
LRMAM0805 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 0805 | Metal element | 500mW | 0mV | 5mΩ | 25mΩ | 1% | 100 | Current sense | AEC-Q200 |
|
LRMAM1206 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 1206 | Metal element | 1W | 0mV | 1mΩ | 30mΩ | 1% | 75 | Current sense | AEC-Q200 |
|
LRMAM2512 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 2512 | Metal element | 2W | 0mV | 0.5mΩ | 10mΩ | 1% | 75 | Current sense | AEC-Q200 |
|
LRMAM2512 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 2512 | Metal element | 1W | 0mV | 20mΩ | 60mΩ | 1% | 75 | Current sense | AEC-Q200 |
 |
LRMAN0612 | Low resistance metal alloy inverse | Datasheet | SMD - solder | Chip (other size) | Metal element | 1W | 0mV | 1mΩ | 3mΩ | 1% | 100 | Current sense | AEC-Q200 |
|
LRMAN0815 | Low resistance metal alloy inverse | Datasheet | SMD - solder | Chip (other size) | Metal element | 1W | 0mV | 3mΩ | 30mΩ | 1% | 100 | Current sense | AEC-Q200 |
|
LRMAN1225 | Low resistance metal alloy inverse | Datasheet | SMD - solder | Chip 1225 | Metal element | 3W | 0mV | 2mΩ | 40mΩ | 1% | 100 | Current sense | AEC-Q200 |
|
LRMAP2512 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 2512 | Metal element | 3W | 0mV | 0.5mΩ | 300mΩ | 1% | 75 | Current sense | AEC-Q200 |
 |
LRMAP3920 | Low Resistance Metal Alloy Power | Datasheet | SMD - solder | Chip (other size) | Metal element | 5W | 0mV | 0.2mΩ | 3mΩ | 1% | 50 | Current sense | AEC-Q200 |
|
LRMAT2010 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 2010 | Metal element | 1.5W | 0mV | 5mΩ | 100mΩ | 1% | 75 | Current sense | AEC-Q200 |
|
LRMAT2512 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 2512 | Metal element | 2W | 0mV | 1mΩ | 10mΩ | 1% | 75 | Current sense | AEC-Q200 |
|
LRMAT2512 | Low resistance metal alloy | Datasheet | SMD - solder | Chip 2512 | Metal element | 1W | 0mV | 11mΩ | 50mΩ | 1% | 75 | Current sense | AEC-Q200 |
|
LVC0402 | Low value current sense surface mount chip | Datasheet | SMD - solder | Chip 0402 | Thick film | 63mW | 0mV | 50mΩ | 1Ω | 1% | 200 | Current sense | None |
|
LVC0603 | Low value current sense surface mount chip | Datasheet | SMD - solder | Chip 0603 | Thick film | 100mW | 0mV | 20mΩ | 1Ω | 1% | 200 | Current sense | None |
|
LVC0805 | Low value current sense surface mount chip | Datasheet | SMD - solder | Chip 0805 | Thick film | 250mW | 0mV | 20mΩ | 1Ω | 1% | 200 | Current sense | None |
 |
MFC0603 | Metal foil on ceramic chip | Datasheet | SMD - solder | Chip 0603 | Metal foil | 500mW | NaNmV | 5mΩ | 20mΩ | 1% | 50 | Current sense | None |
|
MFC2817 | Metal foil on ceramic chip | Datasheet | SMD - solder | Chip (other size) | Metal foil | 5W | NaNmV | 3mΩ | 150mΩ | 1% | 30 | Current sense | None |
 |
OAR1 | Open air resistor metal element current sense | Datasheet | Through hole | Radial | Metal element | 1W | 0mV | 3mΩ | 100mΩ | 1% | 20 | Current sense | DSCC |
 |
OAR1TP | Open air resistor metal element current sense | Datasheet | Through hole | Radial | Metal element | 1W | 0mV | 3mΩ | 100mΩ | 1% | 20 | Current sense | None |
|
OAR3 | Open air resistor metal element current sense | Datasheet | Through hole | Radial | Metal element | 3W | 0mV | 2mΩ | 100mΩ | 1% | 20 | Current sense | DSCC |
|
OAR3TP | Open air resistor metal element current sense | Datasheet | Through hole | Radial | Metal element | 3W | 0mV | 2mΩ | 100mΩ | 1% | 20 | Current sense | None |
|
OAR5 | Open air resistor metal element current sense | Datasheet | Through hole | Radial | Metal element | 5W | 0mV | 3mΩ | 50mΩ | 1% | 20 | Current sense | DSCC |
|
OAR5TP | Open air resistor metal element current sense | Datasheet | Through hole | Radial | Metal element | 5W | 0mV | 3mΩ | 50mΩ | 1% | 20 | Current sense | None |
If you have a requirement for Welwyn-TT product we are happy to help.
Please call us on +44 (0) 208 760 7300, email us at sales@eurotech.co.uk or use the form below to contact us.