CRH2512F357RE04Z 2512 357R 2W Ever Ohms Resistor - Technical Overview
1. Product Overview
CRH2512F357RE04Z is a high-power thick film chip resistor from Ever Ohms’ CRH series. Established in 1988, Ever Ohms specializes in the R&D and manufacturing of chip resistors and resistor arrays, holding ISO9001, IATF16949, and AEC-Q200 automotive-grade certifications. The CRH series, as Ever Ohms’ high-power enhanced product line, delivers significantly higher power handling capacity than conventional thick film resistors within standard package dimensions.
2. Part Number Decoding
CRH2512F357RE04Z follows Ever Ohms’ standardized CRH series naming convention:
| Field | Meaning |
|---|---|
| CRH | Series code: Chip Resistor High Power |
| 2512 | Imperial package size, metric equivalent 6.35mm × 3.2mm |
| F | Tolerance grade: ±1% |
| 357R | Resistance value: 357Ω (R denotes decimal point) |
| E04 | Taping packaging and power rating code: 2W rated power (at 70℃ ambient) |
| Z | Lead-free and eco-compliant, meets RoHS and REACH requirements |
| Model | parameter |
| CRH2512F27R0E04Z | 2512 27R 2W 1% 100ppm |
| CRH2512F2K00E04Z | 2512 2K 2W 1% 100ppm |
| CRH2512F2K40E04Z | 2512 2.4K 2W 1% 100ppm |
| CRH2512F2R00E04S | 2512 2R 2W 1% 100ppm |
| CRH2512F30R0E04Z | 2512 30R 2W 1% 100ppm |
| CRH2512F330RE04Z | 2512 330R 2W 1% 100ppm |
| CRH2512F33K0E04Z | 2512 33K 2W 1% 100ppm |
| CRH2512F33R0E04Z | 2512 33R 2W 1% 100ppm |
| CRH2512F357RE04Z | 2512 357R 2W 1% 100ppm |
| CRH2512F360RE04Z | 2512 360R 2W 1% 100ppm |
3. Key Electrical Specifications
Core parameters of CRH2512F357RE04Z:
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Package: 2512 (6.35mm × 3.2mm)
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Resistance: 357Ω (357R)
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Tolerance: ±1% (F grade)
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Rated Power: 2W (at 70℃ ambient)
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TCR: ±100ppm/℃
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Operating Temperature: -55℃ ~ +155℃
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Maximum Working Voltage: 200V
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Maximum Overload Voltage: 400V
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Insulation Resistance: ≥10GΩ
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Environmental Compliance: RoHS compliant (2011/65/EU), REACH SVHC-free
4. Technical Advantages
4.1 High Power Density in Compact Package
Standard 2512 package thick film resistors typically offer 1W rated power. Through optimized thick film paste formulation, ceramic substrate thermal pathways, and multi-layer termination electrode design, the CRH series achieves 2W power handling within the same physical footprint. This enables engineers to double power margin without increasing PCB footprint.
4.2 Materials and Manufacturing Process
CRH2512F357RE04Z employs high-purity alumina ceramic substrate with a ruthenium-based oxide thick film paste sintered at 850℃, covered by a dense glass glaze protective layer. The termination electrodes feature a nickel-tin three-layer structure, improving thermal conductivity by approximately 30% over conventional thick film resistors. Moisture sensitivity level is MSL 1, allowing long-term ambient storage without special moisture control. The product features anti-sulfuration treatment, suitable for sulfur-containing industrial environments and high-humidity outdoor conditions.
4.3 Wide-Temperature Stability
The CRH series supports an operating temperature range of -55℃ to +155℃ with TCR controlled within ±100ppm/℃. Resistance drift remains below 0.5% under extreme conditions, ensuring long-term circuit stability.
4.4 Surge Withstand and Reliability
The thick film process provides excellent pulse withstand capability. The product is AEC-Q200 qualified, meeting the reliability requirements of automotive electronics and other demanding applications.
5. Typical Applications
CRH2512F357RE04Z, with its 2512 package, 357Ω resistance, and 2W power rating, is widely used in:
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Power Management: Switching power supplies, AC-DC/DC-DC converter startup circuits, RC snubber networks, power MOSFET gate drive current limiting
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Industrial Control: Frequency inverters, servo drive power divider and current sense circuits
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Automotive Electronics: BMS battery management systems, OBC onboard charger high-voltage side sensing, ECU auxiliary circuits
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New Energy & Energy Storage: PV inverter auxiliary sampling, BMS bias networks
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Telecommunications: Base station power supplies, network switch current limiting and voltage divider circuits
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Medical Equipment: CT scanners, ultrasound, defibrillators signal conditioning and divider links
6. Procurement Channels
CRH2512F357RE04Z is available through the following authorized channels:
Shenzhen Shunhai Technology Co., Ltd. , as an authorized Ever Ohms distributor, maintains full CRH series inventory with现货 support for popular models including the 2512 357R 2W resistor. Shunhai Technology carries over 50 million units in stock, supporting sample orders starting from 10 pieces as well as bulk volume supply, with最快 30-minute shipping. The company is equipped with a professional technical team and can provide original datasheets and quality assurance certificates.
Huanian Mall offers online ordering with bulk procurement support. The mall provides detailed datasheet downloads and product catalogs for CRH2512F357RE04Z, with transparent pricing tiers, minimum package quantity of 4000 pieces, and minimum order quantity starting from 5 pieces.
