High Power Current Sensing Resistors
Fort Technology's High Power Current Sensing Resistors, including the CUM1206, CUM2512, CUM2725, CUM2728, and CUM4527 series, are designed for applications requiring precise current sensing, voltage division, and pulse handling. These resistors are ideal for high-precision current sensing and circuit protection, featuring stable alloy materials with ultra-low TCR (50ppm/C). They offer excellent stability under various environmental conditions with a low drift rate (|R/R| 1.0% for 1000 h at 70 C) and can withstand high-temperature derating up to +170 C. The pure tin plating ensures compatibility with both lead-free and lead-containing soldering processes. Constructed with high-grade materials and a protective coat, these resistors meet RoHS directive 2011/65/EU, are Halogen-free, and utilize flame-retardant material compliant with UL94 V-0 requirements.
Product Attributes
- Brand: Fort Technology Co., Ltd
- Certifications: RoHS directive 2011/65/EU, Halogen free, UL94 V-0
- Material: Stable alloy plate, resistive paste, electroplated nickel barrier, pure tin (lead free) or matte-tin finish
Technical Specifications
| Model | Power Rating at 70 | T.C.R. (ppm/) | Max. Rating Current (A) | Max. Overload Current (A) | Resistance Range (m) | Material | Operating Temperature Range () |
|---|---|---|---|---|---|---|---|
| CUM1206 | 0.75W | 50 | 3.83 | 7.66 | R051~R075: FeCrAl | -55~+170C | |
| CUM1206 | 1W | 50 | 31.62 | 63.24 | R001: MnCuSn, R002~R007: MnCu, R008~R050: FeCrAl | -55~+170C | |
| CUM2512 | 1W | 75 | 44.72 | 100.00 | R0005~R00075: MnCuSn | -55~+170C | |
| CUM2512 | 1W | 50 | 31.62 | 70.71 | R001~R006: MnCu, R007~R500: FeCrAl | -55~+170C | |
| CUM2512 | 2W | 75 | 63.24 | 141.42 | R0005~R00075: MnCuSn | -55~+170C | |
| CUM2512 | 2W | 50 | 44.72 | 100.00 | R001~R006: MnCu, R007~R450: FeCrAl | -55~+170C | |
| CUM2512 | 3W | 75 | 77.45 | 173.20 | R0005~R00075: MnCuSn | -55~+170C | |
| CUM2512 | 3W | 50 | 54.77 | 122.47 | R001~R006: MnCu, R007~R100: FeCrAl | -55~+170C | |
| CUM2725 | 4W | 100 | 141.42 | 282.84 | R0002~R0004: MnCuSn, R0005~R0025:MnCu, R003:FeCrAl | -55~+170C | |
| CUM2725 | 4W | 50 | 126.49 | 252.98 | 0.25~3 | -55~+170C | |
| CUM2728 | 4W | 50 | 31.62 | 63.24 | R004~R450: FeCrAl | -55~+170C | |
| CUM4527 | 2W | 75 | 63.24 | 141.42 | R0005:MnCuSn | -55~+170C | |
| CUM4527 | 2W | 50 | 44.72 | 100.00 | R001~R005: MnCu, R006~R100: FeCrAl | -55~+170C | |
| CUM4527 | 3W | 75 | 77.45 | 173.20 | R0005:MnCuSn | -55~+170C | |
| CUM4527 | 3W | 50 | 54.77 | 122.47 | R001~R005: MnCu, R006~R060: FeCrAl | -55~+170C | |
| CUM4527 | 5W | 75 | 100.00 | 173.20 | R0005:MnCuSn | -55~+170C | |
| CUM4527 | 5W | 50 | 70.71 | 122.47 | R001~R005: MnCu, R006~R500: FeCrAl | -55~+170C |
2410121255_FORT-CUM1206-15FR008_C5185591.pdf
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