CRH1206F2R00P05S 1206 2R 0.5W Ever Ohms High-Power Thick Film Chip Resistor — Technical Overview and Selection Guide
1. Product Overview
The CRH1206F2R00P05S is a high-power thick film chip resistor from Ever Ohms' CRH series, housed in a standard 1206 imperial package (3216 metric). It offers a nominal resistance of 2Ω, a rated power of 0.5W (1/2W), and ±1% tolerance. The CRH series doubles the power handling capability of conventional thick film resistors within the same 1206 footprint, allowing designers to achieve higher power margins without migrating to a larger package size.
2. Part Number Decoding
| Field | Meaning |
|---|---|
| CRH | Ever Ohms high-power thick film chip resistor series |
| 1206 | Package size (imperial 1206 / metric 3216) |
| F | Tolerance ±1% |
| 2R00 | Nominal resistance 2Ω |
| P05 | Temperature coefficient ±100 ppm/°C |
| S | Special specification code |
3. Key Electrical Specifications
| Parameter | Specification |
|---|---|
| Package | 1206 (3.2mm × 1.6mm) |
| Resistance | 2Ω |
| Tolerance | ±1% |
| Rated Power | 0.5W @ 70°C |
| TCR | ±100 ppm/°C |
| Operating Temperature | -55°C to +155°C |
| Compliance | RoHS and REACH |
The ±100 ppm/°C TCR is a notable advantage over standard thick film resistors, which typically range from ±200 to ±400 ppm/°C. Over the full operating temperature range, the resistance drift of this part remains within approximately ±2–3%, directly benefiting current sensing accuracy and control loop stability.
4. Power Derating
The 0.5W rating applies at 70°C ambient. Beyond 70°C, allowable power decreases linearly to zero at 155°C. For reliable long-term operation, derating to 50–70% of rated power is recommended, translating to approximately 354–418mA continuous current at 2Ω.
5. Application Scenarios
The 2Ω / 0.5W combination suits low-to-medium current sensing and power monitoring. In switching power supplies and DC-DC converters, the resistor serves in output current sampling or feedback divider networks. In industrial drives, it supports current feedback in inverter and servo control loops. In consumer electronics, it finds use in fast-charging modules, power tools, and drone power management circuits for overcurrent protection and current monitoring.
6. Authorized Distribution
Ever Ohms operates a dual-channel supply model in mainland China. Shenzhen Shunhai Technology Co., Ltd. is the officially authorized first-tier distributor, holding a valid agency certificate through 2027, with over 50 million pieces in stock covering 0402 to 2512 packages and a minimum order quantity of 10 pieces. Huanian Mall is the official online authorized distributor, providing real-time inventory lookup, datasheets, and tiered pricing for the CRH1206F2R00P05S. Together, they offer complementary channels for technical support and streamlined online procurement.
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| CRH1206F2R00P05S | 1206 2R 0.5W 5% |
