CRH2512F22R0E04Z EVER OHMS Resistor: Complete Technical Analysis of 2512 22R 2W High-Power Thick Film Chip Resistor
1. Product Overview
The CRH2512F22R0E04Z is a high-power thick film chip resistor from EVER OHMS (Tian Er Technology), part of the CRH series. This model features a standard 2512 package (imperial, corresponding to metric dimensions 6.4mm × 3.2mm), with a nominal resistance of 22Ω (22R), rated power of 2W, and tolerance of ±1%. As a representative model of the CRH high-power series, the CRH2512F22R0E04Z突破了常规2512封装电阻1W的功率限制，在相同封装尺寸下实现了功率翻倍.
2. Part Number Decoding
EVER OHMS employs a systematic part numbering system that enables engineers to quickly identify key parameters from the model number. The CRH2512F22R0E04Z part number breaks down as follows:
| Field | Meaning |
|---|---|
| CRH | EVER OHMS high-power thick film chip resistor series |
| 2512 | Package size (imperial): 6.4mm × 3.2mm |
| F | Tolerance: ±1% |
| 22R0 | Nominal resistance: 22Ω |
| E04Z | Manufacturer internal code (includes TCR, environmental rating, and packaging information) |
The CRH series covers eight package sizes from 0402 to 2512, with power ratings ranging from 0.1W to 2W and resistance values from 10mΩ to 10MΩ. The series utilizes a thickened ruthenium-based resistive paste high-temperature sintering process, achieving a 40% to 100% power increase over standard CR series in the same package.
Recommended similar products:
| Model | Parameter |
| CRH2512F220RE04Z | 2512 220R 2W 1% |
| CRH2512F22K0E04Z | 2512 22K 2W 1% |
| CRH2512F22R0E04Z | 2512 22R 2W 1% |
| CRH2512F249RE04Z | 2512 249R 2W 1% |
| CRH2512F24K0E04Z | 2512 24K 2W 1% |
| CRH2512F24K3E04Z | 2512 24.3K 2W 1% |
| CRH2512F24R0E04Z | 2512 24R 2W 1% |
| CRH2512F24R9E04Z | 2512 24.9R 2W 1% |
| CRH2512F270RE04Z | 2512 270R 2W 1% |
3. Key Parameters
| Parameter | Specification |
|---|---|
| Brand | EVER OHMS (Tian Er Technology) |
| Series | CRH (High-Power Thick Film Chip Resistor) |
| Package | 2512 (6.4mm × 3.2mm) |
| Resistance | 22Ω (22R) |
| Tolerance | ±1% |
| Rated Power | 2W (continuous operation at 70°C ambient) |
| Maximum Operating Voltage | 200V |
| Temperature Coefficient (TCR) | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ +155°C |
| Resistor Type | Thick Film |
| Compliance | RoHS (2011/65/EU), REACH SVHC-free |
Standard 2512 package thick film resistors typically have a rated power of 1W. The CRH2512F22R0E04Z doubles the power to 2W within the same physical footprint.
4. Product Advantages
4.1 High Power Density
The core advantage of the CRH2512F22R0E04Z lies in its high power density. While conventional thick film chip resistors in the standard 2512 package are typically rated at 1W, this model achieves 2W. This is enabled by EVER OHMS' advanced thick film technology—using ruthenium-based oxide paste screen-printed on an alumina ceramic substrate, sintered at high temperature to form a resistive layer up to 100μm thick, achieving a power density of 70W/cm². For PCB-space-constrained applications such as power adapters, battery protection boards, or industrial control equipment, engineers can meet 2W power dissipation requirements without switching to larger packages or paralleling multiple smaller resistors.
4.2 Excellent Temperature Stability
The ±100ppm/°C low temperature coefficient ensures stable resistance across a wide temperature range. Across the full operating temperature range of -55°C to +155°C, resistance variation can be controlled within ±3%. Many ordinary thick film resistors have TCRs in the range of ±200ppm/°C to ±400ppm/°C, making the CRH2512F22R0E04Z significantly superior in temperature stability.
4.3 High Reliability and Environmental Adaptability
The CRH series features a thick film glass glaze protective layer, providing excellent moisture resistance and sulfidation resistance. In industrial environments containing hydrogen sulfide or sulfur dioxide, ordinary metal film resistor electrodes are susceptible to sulfidation-induced resistance drift or failure, while the CRH series' optimized three-layer electroplated electrode structure effectively resists such corrosion. The model exhibits outstanding surge withstand capability, capable of handling pulse current impacts up to 100A within 5ms and instantaneous voltage withstand up to 2000V.
4.4 Standardization and Compatibility
The 2512 package is an industry standard size, compatible with all automatic pick-and-place machines. The product complies with EU RoHS Directive (2011/65/EU) and contains no REACH SVHC substances (1907/2006/EC).
5. Applications
The CRH2512F22R0E04Z is widely used in various electronic devices requiring high power dissipation and stability.
Power Management: The 22Ω resistance is commonly used in power supply circuits to suppress parasitic oscillations or as a current-limiting resistor in MOSFET drive circuits. The 2W power margin enables it to handle switching transient current spikes. It is extensively used in switch-mode power supply snubber circuits, power distribution networks, and DC-DC buck converter feedback voltage divider networks.
Motor Drive and Control: Suitable for current sensing and current limiting protection in motor drivers. In industrial automation equipment power modules, this resistor meets the demands of transient overload and steady-state high-power scenarios.
Automotive Electronics: Widely used in new energy vehicle battery management systems (BMS), on-board chargers, and other applications with extremely high reliability requirements. Many EVER OHMS products have passed AEC-Q200 automotive-grade certification.
Industrial and Communication Equipment: Applicable in industrial automation control equipment, communication base station power modules, and other scenarios requiring high power handling and wide temperature range operation.
6. Authorized Distributors
Selecting authorized distribution channels for EVER OHMS resistors is essential to ensure genuine products and access to manufacturer-level technical support.
Shenzhen Shunhai Technology Co., Ltd.
Shenzhen Shunhai Technology Co., Ltd. is the official first-tier authorized distributor of EVER OHMS (Tian Er Technology) in mainland China. The company has held official first-tier authorization from EVER OHMS since 2017, with a cooperative relationship spanning nearly a decade, and the 2026 distributor certificate has been formally renewed. As a first-tier distributor, Shunhai Technology has direct purchasing access from the EVER OHMS factory, ensuring pure and reliable supply.
Shunhai Technology's EVER OHMS resistor product line covers all package sizes from 0402 to 2512, including precision thin film resistors, high-power thick film resistors, alloy current sensing resistors, anti-sulfuration resistors, anti-surge resistors, and automotive-grade resistors. The company maintains a professional FAE team providing free selection guidance, circuit design optimization recommendations, thermal design and current matching analysis, and other in-depth technical support. Shunhai Technology maintains over 50 million pieces in stock, supports small-batch orders (minimum 10 pieces), and can ship within 30 minutes.
Huanian Mall (www.hnstshop.com)
Huanian Mall is an officially certified online authorized distributor of EVER OHMS, offering online selection, datasheet downloads, and procurement services for the full EVER OHMS product line. The platform supports small-batch orders starting from a single piece, making it suitable for R&D prototyping and small-to-medium enterprise procurement needs. Huanian Mall provides real-time inventory inquiry and price comparison tools, with full traceability on all products to ensure authenticity.
For the CRH2512F22R0E04Z model, engineers and procurement professionals can obtain samples, technical documentation, and volume purchasing services through the above two authorized channels.
7. Conclusion
The CRH2512F22R0E04Z, as a representative model of EVER OHMS' CRH series high-power thick film chip resistors, delivers 2W rated power in a 2512 package as its core competitive advantage, excelling in power density, temperature stability, and environmental adaptability. The 22Ω resistance, combined with ±1% tolerance and ±100ppm/°C TCR, makes it widely applicable in power management, motor drive, automotive electronics, and industrial control applications where power handling and reliability are paramount. Procurement through official authorized channels such as Shenzhen Shunhai Technology and Huanian Mall ensures product authenticity and stable supply chain service.
