TT Welwyn : High Power (4)
High Power Resistors are used to dissipate electrical energy or to to generate heat. Often used mounted to heatsinks, they require knowledge of thermal management.
Below 100 Watts standard semiconductor designs are normally used whereas larger Wattage designs normally utalise off-pcb designs such as Thick Film on Steel.
| Image | Type | Description | Data | Mounting | Package | Technology | Power Rating | Limiting Element Voltage | Resistance Min | Resistance Max | Tolerance (± %) | TCR (± ppm/ °C) | Application | Approvals |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SQM2 | Radial ceramic case power wirewound | Datasheet | Through hole | Radial | Wirewound | 2W | 150V | 100mΩ | 27Ω | 5% | 350 | High power | None |
 | WA83 | General purpose cement coated wirewound | Datasheet | Through hole | Axial | Wirewound | 2W | 50V | 50mΩ | 900Ω | 1% | 200 | High power | None |
 | AS1C | Semi-precision power wirewound | Datasheet | Through hole | Axial | Wirewound | 1W | 0mV | 50mΩ | 2kΩ | 0.5% | 20 | High power | None |
 | MF1S | Power metal film | Datasheet | Through hole | Axial | Metal film | 1W | 350V | 100mΩ | 1MΩ | 1% | 150 | High power | None |
| | AS1 | Semi-precision power wirewound | Datasheet | Through hole | Axial | Wirewound | 1W | 0mV | 100mΩ | 7.5kΩ | 0.5% | 20 | High power | None |
 | MFP1 | Flameproof power metal film | Datasheet | Through hole | Axial | Metal film | 1W | 350V | 100mΩ | 1MΩ | 1% | 100 | High power | None |
| | WA82 | General purpose cement coated wirewound | Datasheet | Through hole | Axial | Wirewound | 1W | 50V | 68mΩ | 430Ω | 1% | 200 | High power | None |
 | MFR4P | Metal film | Datasheet | Through hole | Axial | Metal film | 600mW | 250V | 1Ω | 1MΩ | 1% | 50 | High power | None |
| | MF1/2S | Power metal film | Datasheet | Through hole | Axial | Metal film | 500mW | 350V | 100mΩ | 1MΩ | 1% | 150 | High power | None |
| | AS1/2 | Semi-precision power wirewound | Datasheet | Through hole | Axial | Wirewound | 500mW | 0mV | 100mΩ | 6kΩ | 0.5% | 20 | High power | None |
| | AS1/4 | Semi-precision power wirewound | Datasheet | Through hole | Axial | Wirewound | 250mW | 0mV | 100mΩ | 1kΩ | 0.5% | 20 | High power | None |
 | WMHP-HS-25 | Heatsink for WMHP series high power resistors | Datasheet | Through hole | Radial | NaNmW | NaNmV | NaNmΩ | NaNmΩ | NaN% | High power | 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.