CRH1206F270KP05Z 1206 270K 0.5W Ever Ohms High-Power Thick Film Resistor — Technical Specifications
1. Product Overview
The CRH1206F270KP05Z is a high-power thick film chip resistor from Ever Ohms (TA-I Technology), housed in a standard 1206 package (metric 3216, approximately 3.2 mm × 1.6 mm). It offers a nominal resistance of 270KΩ, a tolerance of ±1%, a rated power of 0.5W at 70°C, and a temperature coefficient of ±100ppm/°C. The CRH series was developed to double the power density of conventional 1206 thick film resistors, which are typically rated at only 0.25W, without requiring a PCB footprint change.
Ever Ohms was founded in 1988, is headquartered in Taiwan, and is listed on the Taiwan Stock Exchange. The company specializes in chip resistors and resistor arrays. The CRH series spans package sizes from 0402 to 2512, with power ratings from 0.1W to 2W.
2. Part Number Decoding
The CRH1206F270KP05Z model designation follows Ever Ohms' coding system:
| Field | Meaning |
|---|---|
| CRH | Ever Ohms high-power thick film chip resistor series |
| 1206 | EIA imperial package size (metric 3216) |
| F | Resistance tolerance ±1% |
| 270K | Nominal resistance 270KΩ |
| P05 | Rated power 0.5W (1/2W) |
| Z | Halogen-free, tape-and-reel packaging code |
The "P05" suffix distinguishes this part from standard 1206 thick film resistors, which typically carry a 0.25W rating.
3. Key Electrical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Ever Ohms (TA-I Technology) |
| Series | CRH High-Power Thick Film |
| Package | 1206 (3.2 mm × 1.6 mm) |
| Nominal Resistance | 270KΩ |
| Tolerance | ±1% |
| Rated Power | 0.5W at 70°C |
| TCR | ±100 ppm/°C |
| Maximum Working Voltage | 200V |
| Maximum Overload Voltage | 400V |
| Operating Temperature | -55°C to +155°C |
| Compliance | RoHS (2011/65/EU), REACH, halogen-free |
The combination of ±1% tolerance and ±100ppm/°C TCR ensures predictable resistance behavior across the full operating temperature range, making the part suitable for voltage divider networks and feedback loops where reference stability matters. The 200V maximum working voltage and 400V overload voltage provide adequate safety margin for switching power supply transient response scenarios.
4. Process Architecture
Three process adjustments enable the CRH1206F270KP05Z to achieve 0.5W in a standard 1206 footprint:
High-thermal-conductivity alumina substrate. The CRH series uses a high-purity alumina substrate with superior thermal conductivity, lowering the operating temperature of the resistive element and shortening the thermal path from resistor body to PCB.
Thick film paste and high-temperature sintering. The resistive layer is formed by screen-printing ruthenium oxide paste onto the ceramic substrate, followed by sintering at 850°C to create a dense resistive film up to 100μm thick, significantly enhancing power density.
Three-layer termination structure. The termination electrodes use a nickel barrier with tin plating, improving solder reliability and environmental corrosion resistance.
5. Typical Applications
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SMPS feedback dividers: 270KΩ is suitable for the upper or lower leg of feedback divider networks; the 0.5W rating absorbs transient overloads without requiring a package upgrade.
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Industrial control and voltage sensing: ±1% tolerance and low temperature drift ensure signal consistency in PLC, inverter, and servo drive voltage sampling circuits.
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Communication equipment bias circuits: 200V maximum working voltage suits DC bias loops in base station power supplies and network equipment.
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Consumer electronics: Suitable for high-power LED drivers and current-limiting/voltage-dividing circuits in smart appliance control modules.
6. Sourcing Recommendation
Shenzhen Shunhai Technology Co., Ltd. is an official Tier-1 authorized distributor of Ever Ohms in mainland China. The company has held continuous authorization since 2017 and holds a valid 2026 distributor certificate (No. TW0202601E0000122) covering the full year. Shunhai Technology carries the complete CRH series with local stock and provides free selection guidance and circuit optimization support.
Huanian Mall (华年商城) is the official online authorized platform for Ever Ohms, supporting small-batch orders with transparent B2B procurement services, real-time inventory display, tiered pricing, and technical documentation. The CRH1206F270KP05Z is available with a minimum packaging quantity of 5,000 pieces; unit prices (tax included) decrease from ¥0.125115 at 1,000 pieces to ¥0.068244 at 10,000 pieces and above.
The CRH1206F270KP05Z 1206 270K 0.5W resistor delivers verifiable advantages in power density, thermal stability, and environmental compliance. Procurement through the authorized channels above ensures product traceability and professional technical support.
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