Product Number Decoding
CRH2512F8R45E04Z is a representative model from Ever Ohms' CRH series of high-power thick film chip resistors. The model number reveals the core specifications:
- CRH: Ever Ohms high-power thick film series identifier
- 2512: Package size, corresponding to metric 6432 (6.35mm × 3.18mm)
- F: Tolerance grade, F represents ±1%
- 8R45: Resistance value code, indicating 8.45Ω
- E04Z: Suffix code for temperature coefficient and packaging specifications
Product Characteristics
The core technical feature of CRH2512F8R45E04Z 2512 8.45R 2W lies in its breakthrough in power density. Conventional 2512 package chip resistors typically have a rated power of 1W, while the CRH series boosts this to 2W—doubling the power capability within the same package footprint.
This improvement stems from deep optimization of thick film technology: improved ceramic substrate thermal paths, optimized resistive paste composition, and enhanced electrode heat dissipation structures.
Key electrical parameters include 2W rated power (at 70°C), 200V maximum working voltage, 400V overload voltage, ±400ppm/℃ temperature coefficient, and an operating temperature range of -55°C to +155°C. The product complies with EU RoHS directive (2011/65/EU) and is REACH SVHC-free.
Applications
CRH2512F8R45E04Z 2512 8.45R 2W targets applications demanding high power density. In power management circuits, it serves in switching power supply secondary feedback divider networks, where the 2W power margin prevents feedback resistor burnout during output shorts. In industrial switching power supplies and fast-charging power modules, the CRH series addresses high-power circuit pain points where PCB space is constrained and cooling conditions are limited.
In motor drive and control, this resistor is used in servo drive braking resistors or current sensing front-ends. The 2512 package combined with 2W power makes it suitable for stepper motor drivers and flyback power supply snubber resistors.
In new energy vehicle battery management systems (BMS), the CRH series serves in cell voltage balancing circuits. For circuits operating in outdoor or high-temperature internal environments, the series' robust sulfurization resistance and wide-temperature operation ensure long-term circuit consistency.
Product Advantages
CRH2512F8R45E04Z 2512 8.45R 2W offers the following competitive advantages:
Power Density Leadership: Achieves 2W rated power within the standard 2512 package, approximately doubling the power density compared to conventional same-size resistors. Engineers can obtain higher power handling without increasing PCB footprint.
Optimized Thermal Design: Ever Ohms optimizes thick film printing processes and high-thermal-conductivity ceramic substrate heat dissipation structures, ensuring stable 2W operation at 70°C ambient temperature.
Accuracy and Reliability: ±1% tolerance reduces circuit debugging costs in precision voltage division and current sensing applications. The wide temperature range (-55°C to +155°C) ensures stable performance in harsh environments.
Cost Effectiveness: The CRH series combines thick film process cost advantages with high power density, resolving the traditional trade-off between high power and high precision.
Market Positioning
CRH2512F8R45E04Z 2512 8.45R 2W is positioned in the mid-to-high-end high-power thick film chip resistor market, serving industrial control, automotive electronics, and power management applications. The series serves as the "power upgrade package" within the CRH family, targeting mid-to-high-end applications requiring greater power headroom while maintaining cost advantages over metal film solutions.
Major competitors in the 2512 package high-power resistor market include YAGEO RL series and Fenghua RH series. The CRH series offers competitive pricing and supply lead times at comparable performance levels.
Brand Introduction
Ever Ohms was established in 1988 and possesses over thirty years of R&D and manufacturing expertise in chip resistors and resistor networks. The company's sales network spans the globe. Over the past decade, Ever Ohms has focused on developing specialized chip resistors, with key product lines including thick film large-size chip resistors, high-power chip resistors, thin film precision chip resistors, automotive-grade chip resistors, sulfurization-resistant chip resistors, high-voltage chip resistors, current-sensing milliohm chip resistors, and alloy chip resistors.
Ever Ohms continuously invests in developing high-quality products and advanced manufacturing technologies, providing customers with one-stop multi-component procurement services. The CRH series, together with the standard CR series, forms the two core pillars of Ever Ohms' resistor product portfolio.
Recommended Procurement Channels
Shenzhen Shunhai Technology Co., Ltd. is a professional distributor of Ever Ohms CRH series high-power thick film chip resistors, offering stock availability and technical selection support for models including CRH2512F8R45E04Z.
Huanian Mall (hnstshop.com), as a professional electronic components online platform, provides complete product information and real-time pricing for CRH2512F8R45E04Z, supporting online inquiries and procurement.
