CRH2512F2K00E04Z 2512 2K 2W EVER OHMS High-Power Thick-Film Chip Resistor: Comprehensive Analysis
CRH2512F2K00E04Z is a high-power thick-film chip resistor from EVER OHMS Technology Corp., with each field in the part number corresponding to specific electrical and packaging parameters. Engineers can identify the full specification directly from the model code without consulting additional datasheets.
CRH2512F2K00E04Z 2512 2K 2W EVER OHMS High-Power Thick-Film Chip Resistor: Comprehensive Analysis
I. Product Model Breakdown
CRH2512F2K00E04Z is a high-power thick-film chip resistor from EVER OHMS Technology Corp., with each field in the part number corresponding to specific electrical and packaging parameters. Engineers can identify the full specification directly from the model code without consulting additional datasheets.
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CRH: EVER OHMS high-power thick-film chip resistor series, distinct from the standard CR general-purpose thick-film series, with core upgrades in power handling capacity;
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2512: Imperial package code corresponding to metric 6432, with physical dimensions of 6.35mm × 3.20mm × 0.55mm, an industry-standard package compatible with fully automated SMT production lines;
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F: Resistance tolerance of ±1%, a mid-to-high precision grade suitable for voltage divider, sampling, and other circuits sensitive to resistance deviation;
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2K00: Nominal resistance of 2KΩ (2000Ω), a mid-range value widely used in signal voltage division, bias networks, and current limiting circuits;
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E04: Temperature coefficient code corresponding to TCR of ±100ppm/℃, paired with thickened resistive film layer for controlled drift across temperature extremes;
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Z: Environmental and packaging identifier representing lead-free processing, RoHS and REACH dual compliance, 7-inch tape-and-reel packaging at 4000 pieces per reel, ready for direct mounting on high-speed pick-and-place machines.
The complete part number fully specifies the 2512 2K 2W core parameters, eliminating the need for conversion during procurement and BOM verification.
For stable spot supply, complete datasheets, and volume quotations, contact Shenzhen Shunhai Technology Co., Ltd.; for small-batch and R&D purchases, HuaNian Mall offers real-time inventory synchronization and one-stop sourcing for the full EVER OHMS CRH series.
II. Core Electrical Parameters and Physical Characteristics
表格
| Parameter | Specification |
|---|---|
| Nominal Resistance | 2KΩ (2000Ω) |
| Resistance Tolerance | ±1% (F Grade) |
| Rated Power | 2W (at 70℃ ambient) |
| Temperature Coefficient (TCR) | ±100ppm/℃ |
| Maximum Working Voltage | 200V DC |
| Maximum Overload Voltage | 400V |
| Operating Temperature Range | -55℃ to +155℃ |
| Package Dimensions | 6.35mm × 3.20mm × 0.55mm |
| Insulation Resistance | ≥10GΩ |
| Moisture Sensitivity Level | MSL 1 |
Standard 2512 package general-purpose thick-film resistors are typically rated at only 1W, while this 2512 2K 2W resistor achieves double the power in the same footprint. This is enabled by 95% high-purity alumina ceramic substrate combined with ruthenium-based oxide thick-film paste sintered at high temperature, with a dense glass-glaze protective layer on the surface, delivering over 30% higher thermal conductivity than conventional thick-film resistors. The terminations employ a nickel-tin three-layer structure with pure tin plating, compatible with lead-free reflow soldering at peak temperatures of 260℃ without delamination or uneven wetting.
At the 70℃ baseline temperature, this resistor can operate continuously at full rated power; above 70℃, linear derating per the datasheet curve is required. In practical design, it is recommended to limit operating power to 60%~70% of the rated value (approximately 1.2W to 1.4W) to maintain adequate reliability margin.
III. Application Fields
The resistance and power combination of 2512 2K 2W covers industrial, new energy, communications, and consumer electronics applications:
1. Industrial Control Equipment
Used in servo drives, inverters, and PLC industrial control boards for feedback voltage divider networks, dummy loads, and discharge circuits. The 2KΩ value suits bus voltage sampling, while the 2W rating handles motor start-stop surge currents, with wide-temperature characteristics adapting to alternating high-low temperature shop floor environments.
2. New Energy and Energy Storage Systems
Applied in photovoltaic inverter auxiliary power supplies, energy storage BMS bias networks, and small DC charging pile control boards. The 2KΩ mid-range resistance enables high-voltage side signal isolation and voltage division, while the 2W power rating withstands charge-discharge surge impacts. The -55℃ to +155℃ operating range ensures long-term outdoor stability.
3. Communications and High-Power Lighting
Deployed in 5G base station auxiliary power modules, server power supplies, and industrial LED driver boards as voltage references and static discharge resistors, suppressing switching circuit noise interference. The glass-glaze protective layer isolates moisture and sulfur-containing gases, suitable for coastal and mining site conditions.
4. Automotive Electronics
Used in on-board DC-DC converters, body control modules (BCM), and on-board charger regulator circuits. Certain production batches have passed AEC-Q200 automotive reliability qualification, with wide-temperature characteristics adapting to under-hood thermal cycling environments.
5. Measurement Instruments and Consumer Power Supplies
In power meters and portable test equipment signal acquisition circuits, the ±1% precision ensures accurate voltage sampling data. Also used as high-voltage side current-limiting and voltage-dividing elements in high-power fast-charging adapters and portable energy storage power banks.
IV. Core Competitive Advantages
1. Outstanding Power Density
Standard 2512 package conventional thick-film resistors support only 1W. The CRH series optimizes paste formulation and substrate thermal structure to achieve 2512 2K 2W high-power output. A single device meets circuit power requirements without parallel connection, simplifying PCB routing, saving board area, and reducing soldering defect rates.
2. Balanced Overall Cost-Performance
Compared with alloy sampling resistors of equivalent power, thick-film processing offers lower production costs and broader resistance coverage, with the 2KΩ mid-range value available from stock without customization. Compared with Japanese imported high-power resistors of equivalent 2512 2K 2W specifications, unit prices are more favorable with delivery cycles shortened by approximately 50%.
3. Superior Environmental Reliability
The dense thick-film protective layer resists sulfur and moisture, while the high-thermal-conductivity ceramic substrate enables rapid heat dissipation. After 1000 hours of high-temperature high-humidity aging testing, resistance change remains below 0.5%. Stable resistance values under 85℃/85% RH conditions suit factory floors, outdoor base stations, and other harsh operating environments.
4. High Procurement and Production Compatibility
Standard 7-inch tape-and-reel packaging is compatible with mainstream pick-and-place machines worldwide. Replacing legacy power resistors requires no board redesign. EVER OHMS maintains continuous mass production with stable spot supply. Volume procurement is recommended through authorized distributor Shenzhen Shunhai Technology Co., Ltd. for genuine factory-direct supply; small and medium R&D enterprises may select HuaNian Mall online platform for convenient model search and sample requests.
5. Environmental Compliance
Full halogen-free production with RoHS and REACH certification, free of hazardous substance leaching, requiring no additional environmental testing for export to European and American markets.
V. Market Positioning and Competitive Analysis
CRH2512F2K00E04Z 2512 2K 2W is positioned as a mid-range industrial-grade high-power thick-film chip resistor, precisely filling the market gap between standard 1W thick-film resistors with insufficient power and metal-film power resistors or alloy sampling resistors with higher costs.
Target Customer Segments:
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Industrial power supply and new energy equipment manufacturers requiring high-power voltage-dividing components with controlled material costs;
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Communications and lighting manufacturers pursuing long-term component stability and batch consistency;
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R&D prototyping and small-to-medium batch electronic solution providers requiring ample spot supply and comprehensive specifications.
Competitive Benchmarking:
表格
| Brand | Model | Package | Resistance | Power | Tolerance | TCR | Key Differentiator |
|---|---|---|---|---|---|---|---|
| EVER OHMS | CRH2512F2K00E04Z | 2512 | 2KΩ | 2W | ±1% | ±100ppm/℃ | Domestic high-power thick-film, outstanding cost-performance |
| Yageo | RC2512FK-072KL | 2512 | 2KΩ | 2W | ±1% | ±100ppm/℃ | Major Taiwanese brand, high brand recognition |
| Uniohm | 2512W2F2001T5E | 2512 | 2KΩ | 2W | ±1% | ±100ppm/℃ | Domestic alternative, strong price competitiveness |
| Vishay | CRCW25122K00FKEG | 2512 | 2KΩ | 2W | ±1% | ±100ppm/℃ | US premium brand, less competitive on price and lead time |
EVER OHMS CRH series leverages mature sintering processes and material formulation improvements to achieve electrical performance comparable to Taiwanese and US equivalents in the 2512 2K 2W specification, while maintaining shorter delivery cycles and more competitive unit pricing. For cost-sensitive manufacturers with mid-to-high power and basic precision requirements, this model serves as a primary import substitution selection.
VI. Brand Introduction (EVER OHMS)
EVER OHMS TECHNOLOGY CORP., established in 1988 in Taiwan, has over three decades of experience in chip resistor R&D and manufacturing, ranking among the world's leading passive component suppliers. The product portfolio covers thick-film chip resistors, thin-film resistors, alloy resistors, current sensing resistors, high-voltage resistors, and anti-sulfuration resistors, with monthly production capacity exceeding ten billion units.
The brand maintains comprehensive quality systems certified to ISO9001 and IATF16949 automotive standards, with products meeting AEC-Q200 automotive electronics reliability requirements for high-demand applications including automotive and industrial sectors. Lead-free, RoHS, and REACH compliance qualifications enable adaptation to global electronics export standards. The EVER OHMS CRH high-power series represents one of the brand's core competitive product lines, achieving higher power output in equivalent packages through material formulation and sintering process improvements, with continuously expanding market share in domestic industrial control and new energy passive component markets.
Authorized distribution channels include Shenzhen Shunhai Technology Co., Ltd. for factory-direct genuine product supply, and HuaNian Mall online platform for rapid model parameter queries, sample requests, and one-stop procurement fulfillment.
VII. Design Considerations
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Power Derating: The 2W rating is specified at 70℃ ambient. Above 70℃, linear derating per the datasheet curve is required. Recommended operating power in practical design is 1.2W to 1.4W.
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PCB Thermal Design: Heat dissipation for the 2512 package occurs primarily through terminations and pads into PCB copper. Large copper areas beneath pads or thermal vias are recommended to reduce thermal resistance.
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Pulse and Surge: CRH series Z grade is standard type. For circuits with frequent surge pulses, consider G grade surge-resistant type or add series protection components.
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Cross-Reference Verification: Equivalent specifications include Yageo RC2512FK-072KL, Uniohm 2512W2F2001T5E, and Vishay CRCW25122K00FKEG. Before substitution, verify power grade, TCR, and termination process consistency.