CRH1206F1R60P05S — 1206 1.6Ω 0.5W High-Power Low-TCR Resistor from EVER OHMS
Part Number Breakdown
CRH1206F1R60P05S is the full orderable part number of EVER OHMS' CRH series high-power thick-film chip resistor:
- CRH - High-power thick-film chip resistor series
- 1206 - Imperial package 3.2 mm × 1.6 mm (metric 3216)
- F - Tolerance ±1%
- 1R60 - Nominal resistance 1.6 Ω
- P05 - Rated power 0.5 W @ 70 °C
- S - Tape & reel, suitable for SMT assembly
The same naming rule applies to the 1206 1.8R 0.5W EVER OHMS resistor and other values in the series—only the resistance value changes, making cross-referencing during BOM checks straightforward.
Key Electrical Parameters
| Parameter |
Value |
| Resistance |
1.6 Ω |
| Tolerance |
±1% |
| Rated Power |
0.5 W @ 70 °C |
| TCR |
typically ±200 to ±400 ppm/°C (<10 Ω range; confirm with datasheet) |
| Max. Working Voltage |
200 V |
| Overload Voltage |
400 V (5 s) |
| Operating Temperature |
−55 °C to +155 °C |
| Insulation Resistance |
≥100 MΩ |
| Termination |
Ag base / Ni barrier / Pb-free Sn plating |
| Compliance |
RoHS, REACH, lead-free & halogen-free |
| Packaging |
5,000 pcs/reel |
Current, not voltage, sets the limit. At 1.6 Ω and 0.5 W, the thermally limited continuous current is about 0.56 A with only ~0.9 V across the part—the 200 V rating is essentially irrelevant at this resistance. What matters is continuous current and pulse energy.
Temperature drift must be budgeted. With an 85 °C temperature rise, a TCR of ±200 ppm/°C shifts the resistance by roughly ±27 mΩ; at ±400 ppm/°C the shift is about ±54 mΩ. This must be included in the total error budget for current sensing or over-current protection circuits.
Construction and Thermal Design
Three design features allow the standard 1206 package to handle 0.5 W instead of the usual 0.25 W:
- 96% alumina ceramic substrate - higher thermal conductivity spreads heat from the resistive layer to the end terminations and then into the PCB copper.
- Thickened ruthenium-based thick-film resistive layer - screen-printed RuO₂ paste fired at 850 °C, laser-trimmed to ±1%, with a glass overcoat for moisture and corrosion resistance.
- Three-layer composite terminations with widened ends - reduced contact thermal resistance, better resistance to soldering heat shock and sulfur corrosion, compatible with lead-free reflow.
Derating and Layout Guidelines
- Derate linearly above 70 °C per the datasheet curve; above 85 °C ambient, keep actual dissipation to 50-70% of rated.
- For motor start-up, hot-plug and soft-start conditions, calculate pulse energy rather than average power.
- Keep copper under the pads and add vias to internal planes; two devices in parallel can share dissipation, but tolerance stacking affects current sharing.
- In sulfur-bearing atmospheres, specify anti-sulfuration types and keep the component away from contamination sources.
Typical Applications
Switch-mode power supplies and adapters (current limiting, inrush suppression), LED drivers (constant-current sensing), industrial control and inverters, power tools and motor drives, battery management and energy storage, automotive electronics and charging piles.
Sourcing
Shenzhen Shunhai Technology Co., Ltd. is an authorized first-tier distributor of EVER OHMS in mainland China, established in 2012 and based in BaoNeng Technology Park, Longhua, Shenzhen. The company holds authorization for the full EVER OHMS product line and distributes nearly a hundred brands including WALTER, EGN, SUNLROD, LIZ and MURATA. In-house warehousing keeps regular stock on hand, supporting samples, small-batch trials, one-stop BOM kitting, and engineering assistance for selection and thermal design.
HuaNian Mall is Shunhai Technology's self-operated online procurement platform. Materials are stocked in its own warehouse with traceability documentation available per batch. The site provides real-time inventory lookup and online ordering, same-day dispatch for regular stock items, priority handling for urgent prototype orders, and free technical selection support. Engineers looking for stock, pricing and lead time on CRH1206F1R60P05S—or comparing adjacent values such as 1206 1.6R, 1206 1.8R and 1206 2R—can search the part number directly on HuaNian Mall.
Note: Parameters are compiled from the public CRH series specification. Final values shall be confirmed against the latest EVER OHMS datasheet and the original factory shipment report; incoming inspection and reliability testing are required before mass production.