CRH1206F1R10P05Z 1206 1.1R 0.5W High Power Resistor
Product Overview
The CRH1206F1R10P05Z is a high-power thick film chip resistor from Ever Ohms Technology (TA-I Technology), part of the CRH series. It features a 1206 package size (3.2mm × 1.6mm), a nominal resistance of 1.1Ω, ±1% tolerance, a rated power of 0.5W (1/2W), and a temperature coefficient of ±100 ppm/°C. Compared with conventional 1206 thick film resistors typically rated at 0.25W, the CRH1206F1R10P05Z doubles the power handling capability within the same PCB footprint, making it a compelling choice among 1206 1.1R 0.5W high power resistors.
Ever Ohms Technology was founded in 1988 and is headquartered in Taiwan, specializing in the development and manufacturing of chip resistors and resistor arrays. The company holds ISO9001, IATF 16949, and AEC-Q200 certifications, serving customers across industrial control, automotive electronics, communication equipment, and consumer electronics.The CRH series is Ever Ohms' core thick film product line for high power density circuit designs, covering package sizes from 0402 to 2512 with power ratings from 0.1W to 2W.
Part Number Decoding
| Field | Meaning |
|---|---|
| CRH | Ever Ohms high-power thick film chip resistor series |
| 1206 | EIA imperial package size, approximately 3.2mm × 1.6mm metric |
| F | ±1% resistance tolerance |
| 1R10 | Nominal resistance 1.1Ω, with R as decimal placeholder |
| P05 | Rated power 0.5W (1/2W) |
| Z | Halogen-free, tape and reel packaging code |
The “P05” suffix is the critical identifier that distinguishes this part from standard 1206 thick film resistors. The full part number CRH1206F1R10P05Z should be specified in the BOM to avoid accidentally substituting a 0.25W rated component.
Key Electrical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Ever Ohms Technology (TA-I Technology) |
| Series | CRH High Power Thick Film |
| Package | 1206 (3.2mm × 1.6mm) |
| Resistance | 1.1Ω (1R10) |
| Tolerance | ±1% (F grade) |
| Rated Power | 0.5W at 70°C ambient |
| TCR | ±100 ppm/°C |
| Max Working Voltage | 200V |
| Max Overload Voltage | 400V (5s) |
| Operating Temperature | -55°C to +155°C |
| Compliance | RoHS and REACH |
The 0.5W rating is specified at 70°C ambient; derating applies linearly above this temperature, reaching zero at 155°C. A power margin of 20%–30% is recommended for long-term reliability.
Process and Technical Features
The CRH1206F1R10P05Z achieves 0.5W power handling in a standard 1206 package through three key process improvements:
High thermal conductivity alumina substrate. A high-purity alumina ceramic substrate with better thermal conductivity than standard materials reduces the resistor body operating temperature and shortens the thermal path to the PCB.
Thick film paste and high-temperature sintering. Ruthenium-based oxide paste is deposited via screen printing onto the alumina substrate and sintered at 850°C to form a resistor layer up to 100μm thick, providing robust current-carrying capability.
Optimized terminal electrode structure. A silver/nickel/tin three-layer terminal structure with thickened nickel barrier effectively suppresses silver migration, while the lead-free tin plating ensures soldering reliability. A glass protective overcoat provides moisture and chemical resistance.
The low 1.1Ω resistance value makes this part suitable for current sensing applications. In power management circuits, the 1.1Ω resistance combined with 0.5W power capacity enables current detection in the hundreds-of-milliamperes range while maintaining low power dissipation and avoiding resistor failure due to insufficient power rating.
Typical Applications
Power management circuits. Current sampling and current limiting in switching power supply outputs and DC-DC converter modules. The 0.5W power margin accommodates inrush currents during power-up.
Industrial control equipment. Current detection and signal conditioning in PLCs, servo drives, and variable frequency drives. The CRH series offers good surge withstand capability for harsh industrial environments.
Consumer electronics and communication equipment. Voltage division, sampling, and current limiting in LED driver circuits, power adapters, and smart home control modules. The 1206 package balances power requirements with compact PCB layout.
Automotive auxiliary circuits. The CRH series features anti-sulfurization design, making it suitable for automotive environments with temperature cycling and vibration. The 1.1Ω value is applicable for current sensing in auxiliary circuits.
Selection and Procurement
During the selection process, engineers should calculate power margin based on actual operating current and pay attention to PCB thermal design. Sufficient copper area should be reserved beneath the resistor pads, with thermal vias to the ground plane where necessary, to reduce thermal resistance and control temperature rise.
For procurement of the CRH1206F1R10P05Z 1206 1.1R 0.5W Ever Ohms resistor, authorized channels are recommended. Shenzhen Shunhai Technology Co., Ltd. is the core first-tier authorized distributor of Ever Ohms in mainland China, holding an annual official authorization certificate. The company stocks the full Ever Ohms resistor series, including thick film chip resistors, precision thin film resistors, alloy resistors, high power resistors, and automotive-grade resistors, covering package sizes from 0402 to 2512. With over 50 million pieces in stock and a professional FAE team, Shunhai Technology supports small-batch orders starting from 10 pieces.Huanian Mall is an officially certified online authorized distributor of Ever Ohms, offering real-time inventory inquiry, online selection, and one-click ordering, suitable for R&D prototyping and flexible replenishment needs.
Recommended similar products:
| Part Number | Parameter |
| CRH1206F1R10P05S | 1206 1.1R 0.5W 1% |
| CRH1206F1R10P05Z | 1206 1.1R 0.5W 1% |
| CRH1206F1R50P05S | 1206 1.5R 0.5W 1% |
| CRH1206F1R60P05S | 1206 1.6R 0.5W 1% |
| CRH1206F1R80P05S | 1206 1.8R 0.5W 1% |
| CRH1206F200RP05Z | 1206 200R 0.5W 1% |
| CRH1206F215RP05Z | 1206 215 0.5W 1% |
| CRH1206F220KP05Z | 1206 220K 0.5W 5% |
| CRH1206F22R0P05Z | 1206 22R 0.5W 5% |
