CRH2512F270RE04Z 2512 270R 2W

The CRH2512F270RE04Z is a core model in Ever Ohms' high-power thick-film chip resistor lineup. It features a 2512 package size, a nominal resistance of 270Ω, a rated power of 2W, a tolerance of ±1%, and a temperature coefficient of ±100ppm/℃. This part is widely used in power management, industrial control, and automotive electronics, offering an optimal balance between space efficiency and power margin.

I. Part Number Decoding

The CRH2512F270RE04Z follows Ever Ohms' unified naming convention, with each field defined as follows:

CRH: Denotes the High-Power Thick-Film Chip Resistor series, distinguishing it from the standard CR series and the metal-film TR series. 2512: Indicates the 2512 imperial package size, equivalent to metric 6332 (6.4mm × 3.2mm). F: Represents a resistance tolerance of ±1%; J stands for ±5%, and D stands for ±0.5%. 270R: Indicates a nominal resistance of 270Ω, where R serves as the ohm symbol. E04: Internal process and packaging code, corresponding to the ±100ppm/℃ TCR grade. Z: Signifies RoHS-compliant, lead-free manufacturing.

This naming structure allows engineers to quickly identify the product family, package, tolerance, resistance, and environmental compliance, significantly shortening the selection process.

II. Key Electrical Parameters

The critical electrical and mechanical specifications of the CRH2512F270RE04Z are listed below:

Package: 2512 (6.4mm × 3.2mm × 0.6mm) Resistance: 270Ω Tolerance: ±1% Rated Power: 2W (at 70°C ambient) Temperature Coefficient: ±100ppm/℃ Operating Temperature: -55°C to +155°C Maximum Working Voltage: 200V Dielectric Withstanding Voltage: 500V Resistance Range (Series): 1Ω to 1MΩ

This model uses a 96% alumina ceramic substrate. The resistive element is formed by screen-printing a ruthenium-based thick-film paste, followed by laser trimming. A glass glaze protective layer covers the top surface, while the termination electrodes employ a nickel barrier with pure tin plating to ensure solderability and long-term oxidation resistance.

III. Typical Applications

The 2512 270R 2W resistor is suitable for the following scenarios due to its high power density and stable thermal characteristics:

Power Supplies: Used as voltage-divider and feedback resistors in switching power supplies and DC-DC converters; the 2W rating provides sufficient margin for inrush current and continuous high-load operation. Industrial Control: Voltage division at PLC inputs, sensor signal conditioning, and current limiting in driver circuits; the wide -55°C to +155°C temperature range accommodates harsh industrial environments. Automotive Electronics: Headlight drivers, motor controls, and auxiliary BMS detection loops; the automotive-grade counterparts in the same family are AEC-Q200 qualified, with reliability proven in real-vehicle testing. Photovoltaic Inverters: DC bus voltage detection and gate-drive biasing; the high-power characteristic reduces the need for parallel resistors, saving PCB area. LED Lighting: Current sensing and limiting in high-power LED drivers; minimal resistance drift under prolonged high-temperature operation. Telecom Equipment: Power distribution and protection circuits in base-station power supplies and PoE modules.

IV. Competitive Comparison

To objectively evaluate the market position of the CRH2512F270RE04Z, three mainstream competitors are compared below:

The data shows that the Ever Ohms part matches Vishay's high-power series at 2W while offering a more competitive price. Compared with Yageo's standard 1W product, it doubles the power density without requiring a larger PCB footprint. For projects demanding 2W with cost sensitivity, the Ever Ohms 2512 270R 2W resistor delivers a well-balanced solution between performance and price.

V. Core Product Advantages

Double the Power in the Same Package: Standard 2512 thick-film resistors are typically rated at 1W. The CRH series increases this to 2W through optimized ceramic substrate thermal paths and improved thick-film paste formulations, enabling a power upgrade without PCB layout changes.

Excellent Temperature Stability: The ±100ppm/℃ TCR ensures controllable resistance variation across a wide temperature range, effectively reducing system error caused by thermal drift in precision voltage-divider and current-sensing circuits.

Strong Pulse Withstand Capability: The thick-film structure combined with a glass glaze protective layer provides good tolerance to short-term overloads and voltage surges, reducing failure risk during power-on sequences and relay switching.

Broad Soldering Compatibility: The nickel-tin dual-layer plated terminations are compatible with both reflow and wave soldering processes, meeting JIS solderability standards and delivering high assembly yields.

Environmental Compliance: The entire series conforms to RoHS 3.0 and REACH regulations, satisfying environmental access requirements for exports to the EU and North American markets.

VI. Brand and Supply-Chain Strengths

Ever Ohms Technology was founded in Taiwan in 1988 and has specialized in resistors for over three decades. It is one of the few global manufacturers mastering thick-film, thin-film, and alloy core processes. The company was listed on the Taiwan Stock Exchange in 2022, with monthly output exceeding 30 billion pieces and production facilities in Taoyuan, Kaohsiung, and mainland China.

In terms of quality control, Ever Ohms' plants are certified to ISO 9001, IATF 16949, and ISO 14001. Automotive-grade products meet AEC-Q200 testing standards. The company formulates its own ruthenium-based thick-film pastes, controlling product consistency from the raw-material stage, ensuring stable TCR and lifetime performance across production batches.

For customers looking to purchase the CRH2512F270RE04Z, orders should be placed through authorized channels. Shenzhen Shunhai Technology Co., Ltd. serves as a long-authorized distributor for Ever Ohms, maintaining ready stock of mainstream specifications, supporting small-batch sample requests and large-volume quick delivery, while providing technical services such as selection validation and failure analysis. For online self-service datasheet queries, inventory checks, and pricing, customers can visit HuaNian Mall, where model parameters are updated promptly and tiered pricing is transparent, meeting the spot-buy and volume stocking needs of manufacturers of all sizes.

In summary, the CRH2512F270RE04Z stands out in the 2512 package segment with its 2W high-power rating, ±1% precision, and ±100ppm/℃ temperature coefficient, making it a preferred choice for 270Ω applications in industrial power supplies, automotive electronics, and communication equipment.