1206 2Ω 0.5W High Power Thick Film Chip Resistor for Current Sensing and Power Applications

CRH1206F2R00P05S — 1206 2Ω 0.5W Ever Ohms High-Power Thick Film Chip Resistor

CRH1206F2R00P05S is a high-power thick-film chip resistor from Taiwan-based Ever Ohms Technology (EVER OHMS / 天二科技). Rated at 2Ω, ±1%, 0.5W in a 1206 (3216 metric) package, it delivers twice the power of a standard 0.25W 1206 resistor in the same footprint—making it a common choice for current sensing, inrush limiting, discharge and snubber circuits in power supplies, LED drivers, industrial controls and automotive electronics.

表格

• Rated power: 0.5W at reference ambient (typically 70°C); derate linearly above, to zero at upper temperature limit
• Resistance: 2.00Ω ±1%
• Case size: 1206 / 3216 metric, ~3.2mm × 1.6mm × 0.55mm
• Operating temperature: −55°C to +155°C
• TCR: typically within ±200 to ±400ppm/°C in the low-resistance range (refer to the official datasheet)
• Max. working voltage / overload voltage: 200V typical for 1206; confirm in the CRH datasheet
• Insulation resistance: ≥10GΩ @ 500V
• Construction: alumina substrate + RuO₂ resistive layer + glass overcoat + Ni/Sn termination
• Compliance: RoHS 2.0 compliant, halogen-free
• Assembly: suitable for reflow and wave soldering, SMT pick-and-place compatible

When actual dissipation approaches 0.2W, a standard 1206 runs hot and drifts. The CRH series raises the same package to 0.5W through optimized paste formulation and electrode structure, which:

• Saves board space — no need to parallel two 0.25W resistors.
• Lowers surface temperature under the same load, improving long-term stability.
• Handles higher transient energy from motor start-up, relay pull-in, or hot-plug events.

Design practice: derate to 50–70% of nominal. For continuous dissipation keep it near 0.25W or below. At 2Ω, 0.25W corresponds to roughly 350mA RMS continuous current.

• AC-DC adapters & SMPS: output current limiting, inrush suppression, bleeder/load resistors
• LED drivers: constant-current sensing and over-current protection
• DC-DC converters: feedback divider lower leg, soft-start, discharge
• Motor drives & power tools: armature current limiting, braking energy absorption
• Automotive: OBC, BMS balancing/pre-charge (confirm AEC-Q200 grade for automotive use)
• Industrial: inverters, servo drives, signal conditioning
• Consumer electronics: fast chargers, power banks, smart appliances

• Verify tolerance: for sensing/divider circuits, stick with F (±1%); do not substitute J (±5%).
• Evaluate TCR-induced error over the full operating temperature range.
• Distinguish CR (0.25W) from CRH (0.5W) on the BOM — same footprint, different power.
• Confirm reel quantity (S suffix) and MOQ before placing an order.
• Buy through authorized channels; request authorization certificates and batch reports.

Shenzhen Shunhai Technology Co., Ltd. is an authorized first-tier distributor of Ever Ohms in mainland China, covering the full Ever Ohms resistor lineup. Based in Longhua, Shenzhen, Shunhai supports samples, volume pricing, cross-reference advice and flexible payment terms for industrial, communications, consumer and automotive customers.

Online orders can be placed via HuaNian Mall , Shunhai's e-commerce platform, which offers parametric search, real-time stock and tiered pricing for Ever Ohms parts — ideal for prototyping and small-to-medium replenishment.