CRH2512F680RE04Z 2512 680R 2W EVER OHMS High-Power Thick Film Chip Resistor – Comprehensive Analysis

I. Product Number Decoding

CRH2512F680RE04Z is the complete model number of EVER OHMS’ CRH series high-power thick film chip resistor:

• CRH: High-power thick film series, featuring thick film technology with ceramic substrate structure for high power density and excellent heat dissipation.

• 2512: Package size, corresponding to metric dimensions 6.35mm × 3.2mm.

• F: Tolerance grade, F denotes ±1%.

• 680R: Nominal resistance value, 680Ω.

• E04Z: Temperature coefficient and packaging code, corresponding to ±100ppm/℃ TCR and RoHS-compliant tape packaging.

II. Product Characteristics

The core technical feature of the 2512 680R 2W resistor lies in its breakthrough in power density. Standard 2512 package thick film resistors typically have a rated power of 1W, while the CRH2512F680RE04Z achieves 2W rated power in the same physical footprint, representing a 100% increase in power handling capability. This enhancement stems from EVER OHMS’ deep optimization of thick film processes—improved ceramic substrate thermal pathways, optimized resistive paste composition, and enhanced electrode heat dissipation structures.

Key electrical specifications: 680Ω resistance, ±1% tolerance, 2W rated power, ±100ppm/℃ TCR, 200V maximum working voltage, and -55℃ to +155℃ operating temperature range. The ±1% tolerance effectively reduces circuit debugging costs in precision voltage division and current sensing applications. The ±100ppm/℃ TCR ensures controlled resistance variation across wide temperature ranges, preventing control loop inaccuracies caused by thermal drift. The product complies with EU RoHS Directive (2011/65/EU) and is REACH SVHC-free.

III. Applications

The 2512 680R 2W resistor is designed for applications demanding high power density under harsh conditions. Primary application scenarios include:

Power Management: In secondary feedback voltage divider networks of industrial switching power supplies, the 2W power margin effectively prevents feedback resistor burnout during output short circuits. Used as current-limiting or load resistors in DC-DC converters and AC-DC power modules.

New Energy Vehicles: In battery management systems (BMS) for cell voltage balancing circuits, where 2W power capability ensures effective heat management during extended balancing operations. AEC-Q200 automotive qualification meets high-reliability requirements for automotive electronics.

Industrial Control & Communications: Used for current sensing and voltage division in industrial inverters, with 2W power handling capable of withstanding startup inrush currents. Also widely applied in servo drives, motor control brake resistors, and current sensing front-ends. Additional applications include 5G communication equipment power modules and fast-charging power supply modules.

IV. Product Advantages

The 2512 680R 2W resistor offers the following competitive advantages:

Power Density Leadership: Achieves 2W rated power in standard 2512 package, delivering 100% power increase over conventional same-size resistors. Engineers can meet higher power requirements without increasing PCB footprint.

Superior Temperature Stability: TCR strictly controlled at ±100ppm/℃ level with -55℃ to +155℃ operating range. Significantly outperforms standard CR series (200-400ppm/℃ TCR) in industrial power supplies under sustained full-load operation or automotive wide-temperature environments.

Reliability Assurance: EVER OHMS holds ISO9001, IATF16949, and AEC-Q200 automotive certifications. Products feature high reliability, consistent quality, and fast delivery. Metal glaze protective layer enhances moisture and sulfurization resistance, with lead-free tin-plated terminations.

Cost-Effectiveness: The CRH series is positioned in the “high power density + wide-temperature stability” industrial and automotive-grade market, combining thick film process cost advantages with automotive certification for significant price competitiveness.

V. Market Positioning

EVER OHMS CRH series targets mainstream industrial and automotive electronics markets. Under the domestic substitution trend, CRH series occupies a significant position in the mid-power thick film chip resistor market, leveraging thick film process cost advantages combined with AEC-Q200 certification. It complements the CUH series (3W, lower TCR)—CRH focuses on high cost-performance and general high-power applications, while CUH targets mid-to-high-end applications requiring greater power redundancy. At the 2512 package sweet spot, the 2512 680R 2W resistor precisely addresses the market demand for “high power density + cost control,” making it an important reference for engineers in power, industrial control, and automotive electronics.

VI. Brand Introduction

EVER OHMS was founded in 1988 and is headquartered in Taiwan, specializing in the R&D, manufacturing, and sales of chip resistors and resistor networks. The company possesses independent R&D capabilities and manufacturing technology for chip resistors and arrays, continuously investing in high-quality product development and advanced manufacturing processes to meet diverse customer requirements. EVER OHMS holds ISO9001, IATF16949, and AEC-Q200 certifications, renowned for high precision and reliability. The product portfolio covers precision thin film resistors, high-power resistors, alloy resistors, anti-sulfurization resistors, automotive-grade resistors, and more, with package sizes ranging from 0402 to 2512.

VII. Authorized Distributor

Shenzhen Shunhai Technology Co., Ltd. is an officially authorized first-tier distributor of EVER OHMS, fully representing the entire EVER OHMS resistor product line, including the CRH series high-power thick film chip resistors. Founded in 2012 and headquartered in Shenzhen, Shunhai Technology represents nearly 100 international brands, serving leading companies including Huawei, BYD, Siemens, and ABB. The company maintains over 50 million units in stock, supports small-batch prototyping (from 10pcs), and offers fastest 30-minute delivery. For samples, stock availability, or technical support for CRH2512F680RE04Z and other EVER OHMS resistor products, please visit Huanian Mall (www.hnstshop.com) for online purchasing or contact Shunhai Technology for professional selection guidance and customized solutions.