1.1 Ω 0.5W High Power Thick Film Chip Resistor with ±1% Tolerance in 1206

CRH1206F1R10P05Z | 1206 1.1R 0.5W Ever Ohms High-Power Thick Film Chip Resistor

CRH1206F1R10P05Z is a low-resistance model in the CRH high-power thick-film chip resistor series from EVER OHMS (天二科技), commonly referenced as the "1206 1.1R 0.5W Ever Ohms resistor." It delivers 0.5W rated power in a standard 1206 (metric 3216) package—double the output of a conventional 0.25W 1206 resistor—allowing a direct, drop-in replacement without any PCB re-layout. This makes it a practical choice for current sensing, inrush limiting, and LED driver feedback circuits where board space is limited but thermal headroom matters.

Always specify the full part number CRH1206F1R10P05Z in BOMs and RFQs to avoid confusion with the standard-power CR1206 series or the ±5% J-tolerance version.

Engineering note: For low-resistance parts, power—not voltage—is the limiting factor. Using RCWV = √(P×R), the continuous working voltage ceiling at 1.1 Ω / 0.5 W is only about 0.74 V, far below the 200 V rating. Design calculations should therefore be based on I²R dissipation with a 1.5–2× power margin, and derated above 70 °C ambient per the manufacturer's curve. For continuous full-power operation, add copper pads and thermal vias beneath the component.

• Thick-film process: Ruthenium-oxide paste screen-printed and fired on a 96% alumina substrate, laser-trimmed to ±1%. Low cost, good consistency, and fully compatible with high-speed SMT lines.
• Doubled power density: Optimized thermal path from the resistive layer to the terminals enables 0.5 W in a 1206 footprint, eliminating the need to upsize to 1210 or 1812 packages.
• Termination: Ni barrier layer with matte Sn plating provides strong resistance to electrochemical migration; compatible with both reflow and wave soldering.
• Protective overglaze: Guards against moisture and dust ingress, keeping resistance change rate controlled under prolonged damp-heat conditions.
• Compliance: Lead-free, halogen-free termination meeting RoHS 2.0 and REACH requirements.

• Power supplies & adapters – Current sensing, soft-start limiting, and surge suppression in AC-DC/DC-DC modules; the 0.5 W rating absorbs turn-on transient energy comfortably.
• Battery packs & BMS – Over-current detection and balancing branches in Li-ion protection boards and power-tool battery packs, suited to wide internal temperature swings.
• LED drivers – Feedback sense resistor in constant-current circuits; ±1% tolerance helps maintain stable output current across temperature, reducing lumen depreciation.
• Motor drives & appliance control – Withstands inrush and braking currents; thick-film construction offers better pulse handling than thin-film equivalents at the same resistance.
• Industrial control & telecom equipment – Voltage dividers, signal conditioning, and bleed circuits; 1206 size supports both hand soldering during prototyping and automated placement in volume production.

For tighter TCR requirements (<±50 ppm/°C) or lower resistance values, consider EVER OHMS MFR/MA metal-alloy current-sense resistors. If only 0.25 W is needed and cost is the priority, the standard CR1206 series suffices.

To ensure batch consistency and reliable lead times, purchase through authorized distributors and verify the authorization certificate and part-number coverage before ordering.

• Shenzhen Shunhai Technology Co., Ltd. – An authorized distributor of EVER OHMS in mainland China, Shunhai stocks the full CRH high-power series and covers all EVER OHMS thick-film, thin-film, and alloy resistor product lines. Founded in 2012 and based in BaoNeng Technology Park, Longhua, Shenzhen, the company serves industrial electronics, communications, automotive, and consumer segments, offering selection guidance, cross-reference matching, samples, volume supply, and one-stop BOM kitting.
• (HuaNian Mall) – The online procurement platform of Shunhai Technology, with clear part-number labeling and real-time price and stock visibility. It supports small-quantity orders and online checkout, making it convenient for R&D prototyping and pilot runs requiring small lots of the 1206 1.1R 0.5W Ever Ohms resistor.

When introducing this part number for the first time, run a small pilot batch and verify full-load temperature rise, long-term load drift, and post-reflow appearance before committing to volume production.