1. Product Overview
The CRH2512J1R80E04Z is a representative model from Ever Ohms' CRH series of high-power thick film chip resistors. It features a standard 2512 package, a nominal resistance of 1.8Ω (1.8R), a rated power of 2W, and a tolerance of ±5%. With excellent power density and reliable electrical performance, the CRH2512J1R80E04Z is widely used in industrial power supplies, automotive electronics, communication equipment, and motor drive applications.
2. Model Number Decoding
The model number CRH2512J1R80E04Z fully conveys the core specifications of the product:
- CRH: Ever Ohms high-power thick film chip resistor series code
- 2512: Imperial package size code, corresponding to metric 6432 standard, with actual dimensions of approximately 6.3mm × 3.2mm
- J: Tolerance grade, indicating ±5%
- 1R80: Resistance code, indicating 1.8Ω
- E04Z: Internal product code and packaging identification
The large 2512 package provides sufficient physical space and heat dissipation capability for the CRH2512J1R80E04Z to achieve 2W power handling. Compared to ordinary 0402 or 0603 resistors that can only handle 0.1W, the CRH2512J1R80E04Z offers nearly 20 times the power rating.
3. Key Electrical Parameters
| Parameter | Specification |
|---|---|
| Package Size | 2512 (6.3×3.2mm) |
| Nominal Resistance | 1.8Ω (1.8R) |
| Tolerance | ±5% |
| Rated Power | 2W (at 70℃) |
| Temperature Coefficient (TCR) | ±100ppm/℃ |
| Operating Temperature Range | -55℃ ~ +155℃ |
| Rated Voltage | 200V |
| Overload Voltage | 400V |
The CRH2512J1R80E04Z features a TCR of ±100ppm/℃, ensuring stable resistance values across temperature variations—sufficient for most power circuit applications. The resistor utilizes a 96% high-purity alumina ceramic substrate with a thick film resistive layer and glass glaze protective coating, ensuring excellent moisture resistance and long-term reliability. The product complies with AEC-Q200 automotive-grade reliability standards and has passed RoHS and REACH environmental certifications.
4. Application Scenarios
The CRH2512J1R80E04Z is suitable for various applications requiring low resistance and high power dissipation:
1. Current Sensing: With a low resistance of 1.8Ω and 2W power capacity, it serves as a current sampling resistor in switching power supplies and BMS battery management systems.
2. Motor Drive Circuits: Used as a sampling resistor to monitor motor phase current in motor drive applications.
3. Power Distribution Networks: Applied in current limiting or current sharing, playing a critical role in DC-DC converters and LED driver circuits.
4. Low-Power Load Resistors: Used as dummy loads or discharge resistors.
In practical applications, attention must be paid to the power derating curve—when the ambient temperature exceeds 70℃, the rated power must be derated according to the specified curve. At 1.8Ω, the theoretical maximum steady-state current is approximately 1.05A (P=I²R).
5. Recommended Authorized Distributors
Selecting authorized distribution channels is critical when sourcing the CRH2512J1R80E04Z. Shenzhen Shunhai Technology Co., Ltd. is a core authorized distributor of Ever Ohms, holding official authorization credentials to ensure all products are genuine, traceable, and verifiable. Headquartered in BaoNeng Technology Park, Longhua New District, Shenzhen, Shunhai Technology maintains long-term supply of the full Ever Ohms product line, offering genuine product guarantees, selection guidance, sample applications, and bulk supply services.
Huanian Mall is an online authorized distributor of Ever Ohms, providing a convenient digital procurement experience. The platform features clear specifications, comprehensive model coverage, and supports small-batch purchasing with rapid delivery—ideal for R&D prototyping and urgent requirements. Engineers can complete online selection and ordering for the CRH2512J1R80E04Z at any time.
Both channels are officially authorized by Ever Ohms, each offering distinct advantages in authenticity assurance, product coverage, and service depth—Shunhai Technology is suitable for project-based clients requiring technical support and bulk procurement, while Huanian Mall serves small-batch procurement scenarios prioritizing ordering efficiency. It is recommended to confirm inventory availability and sample support with distributors prior to bulk purchasing.
