Product Overview
The Littelfuse WSTM Series is a low ohm, two-terminal surface mount current sense resistor designed for long-term stability and excellent heat dissipation. Its small package makes it suitable for a wide range of applications, offering optimal linearity in I/V conversion and a durable ceramic substrate. This series is ideal for power management applications.
Product Attributes
- Brand: Littelfuse
- Series: WSTM
- Certifications: RoHS, Pb-Free Assembly
Technical Specifications
| Part Number | Size (Inch) | Size (mm) | Resistance Value (m) | Resistance Tolerance (%) | Power Rating (W) | TCR (ppm / C) | Standard Package Quantity |
| WSTM0603DLR006FNR | 0603 | 1608 | 6 | 1.0% | 0.5 | 75 | 5000 |
| WSTM0603DLR009FNR | 0603 | 1608 | 9 | 1.0% | 0.5 | 75 | 5000 |
| WSTM0603QLR010FNR | 0603 | 1608 | 10 | 1.0% | 0.5 | 50 | 5000 |
| WSTM0603QLR015FNR | 0603 | 1608 | 15 | 1.0% | 0.5 | 50 | 5000 |
| WSTM0603QLR020FNR | 0603 | 1608 | 20 | 1.0% | 0.5 | 50 | 5000 |
| WSTM0603QLR022FNR | 0603 | 1608 | 22 | 1.0% | 0.5 | 50 | 5000 |
| WSTM0603QLR030FNR | 0603 | 1608 | 30 | 1.0% | 0.5 | 50 | 5000 |
| WSTM0603QLR033FNR | 0603 | 1608 | 33 | 1.0% | 0.5 | 50 | 5000 |
| WSTM0805DLR003FNR | 0805 | 2012 | 3 | 1.0% | 0.75 | 75 | 5000 |
| WSTM0805QLR004FNR | 0805 | 2012 | 4 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR005FNR | 0805 | 2012 | 5 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR007FNR | 0805 | 2012 | 7 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR008FNR | 0805 | 2012 | 8 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR009FNR | 0805 | 2012 | 9 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR013FNR | 0805 | 2012 | 13 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR015FNR | 0805 | 2012 | 15 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR016FNR | 0805 | 2012 | 16 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR018FNR | 0805 | 2012 | 18 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR020FNR | 0805 | 2012 | 20 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR022FNR | 0805 | 2012 | 22 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR024FNR | 0805 | 2012 | 24 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR030FNR | 0805 | 2012 | 30 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR033FNR | 0805 | 2012 | 33 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR047FNR | 0805 | 2012 | 47 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR100FNR | 0805 | 2012 | 100 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR165FNR | 0805 | 2012 | 165 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR220FNR | 0805 | 2012 | 220 | 1.0% | 0.75 | 50 | 5000 |
| WSTM0805QLR470FNR | 0805 | 2012 | 470 | 1.0% | 0.75 | 50 | 5000 |
| WSTM1206QLR004FNR | 1206 | 3216 | 4 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR005FNR | 1206 | 3216 | 5 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR006FNR | 1206 | 3216 | 6 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR007FNR | 1206 | 3216 | 7 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR008FNR | 1206 | 3216 | 8 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR009FNR | 1206 | 3216 | 9 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR010FNR | 1206 | 3216 | 10 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR011FNR | 1206 | 3216 | 11 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR012FNR | 1206 | 3216 | 12 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR015FNR | 1206 | 3216 | 15 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR016FNR | 1206 | 3216 | 16 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR018FNR | 1206 | 3216 | 18 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR020FNR | 1206 | 3216 | 20 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR022FNR | 1206 | 3216 | 22 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR024FNR | 1206 | 3216 | 24 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR027FNR | 1206 | 3216 | 27 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR028FNR | 1206 | 3216 | 28 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR030FNR | 1206 | 3216 | 30 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR036FNR | 1206 | 3216 | 36 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR039FNR | 1206 | 3216 | 39 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR043FNR | 1206 | 3216 | 43 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR047FNR | 1206 | 3216 | 47 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR056FNR | 1206 | 3216 | 56 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR062FNR | 1206 | 3216 | 62 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR075FNR | 1206 | 3216 | 75 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR120FNR | 1206 | 3216 | 120 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR130FNR | 1206 | 3216 | 130 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR140FNR | 1206 | 3216 | 140 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR160FNR | 1206 | 3216 | 160 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR240FNR | 1206 | 3216 | 240 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR270FNR | 1206 | 3216 | 270 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR330FNR | 1206 | 3216 | 330 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR360FNR | 1206 | 3216 | 360 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR402FNR | 1206 | 3216 | 402 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR430FNR | 1206 | 3216 | 430 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR470FNR | 1206 | 3216 | 470 | 1.0% | 1 | 50 | 5000 |
| WSTM1206QLR499FNR | 1206 | 3216 | 499 | 1.0% | 1 | 50 | 5000 |
| WSTM2512DLR002FYR | 2512 | 6432 | 2 | 1.0% | 2 | 75 | 4000 |
| WSTM2512DLR003FYR | 2512 | 6432 | 3 | 1.0% | 2 | 75 | 4000 |
| WSTM2512QLR005FYR | 2512 | 6432 | 5 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR006FYR | 2512 | 6432 | 6 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR007FYR | 2512 | 6432 | 7 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR010FYR | 2512 | 6432 | 10 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR012FYR | 2512 | 6432 | 12 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR015FYR | 2512 | 6432 | 15 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR016FYR | 2512 | 6432 | 16 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR018FYR | 2512 | 6432 | 18 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR020FYR | 2512 | 6432 | 20 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR022FYR | 2512 | 6432 | 22 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR027FYR | 2512 | 6432 | 27 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR030FYR | 2512 | 6432 | 30 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR033FYR | 2512 | 6432 | 33 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR036FYR | 2512 | 6432 | 36 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR051FYR | 2512 | 6432 | 51 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR068FYR | 2512 | 6432 | 68 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR075FYR | 2512 | 6432 | 75 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR120FYR | 2512 | 6432 | 120 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR130FYR | 2512 | 6432 | 130 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR140FYR | 2512 | 6432 | 140 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR180FYR | 2512 | 6432 | 180 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR240FYR | 2512 | 6432 | 240 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR300FYR | 2512 | 6432 | 300 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR330FYR | 2512 | 6432 | 330 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR360FYR | 2512 | 6432 | 360 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR390FYR | 2512 | 6432 | 390 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR430FYR | 2512 | 6432 | 430 | 1.0% | 2 | 50 | 4000 |
| WSTM2512QLR470FYR | 2512 | 6432 | 470 | 1.0% | 2 | 50 | 4000 |
| WSTM4527RLR007FMR | 4527 | 11470 | 7 | 1.0% | 4 | 100 | 1000 |
| WSTM4527QLR015FMR | 4527 | 11470 | 15 | 1.0% | 4 | 50 | 1000 |
| WSTM4527QLR020FMR | 4527 | 11470 | 20 | 1.0% | 4 | 50 | 1000 |
2411261538_Littelfuse-WSTM2512QLR330FYR_C20350438.pdf
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