Comprehensive Analysis of CRH2512F2K00E04Z 2512 2K 2W Ever Ohms Resistor
I. Product Model Nomenclature
CRH2512F2K00E04Z is the complete part number of the CRH series high-power thick film chip resistor manufactured by Ever Ohms (Tian Er Technology). The model coding follows a standardized naming convention.
Model Breakdown:
| Field | Meaning | Description |
|---|---|---|
| CRH | Series Code | High Power Thick Film Chip Resistor Series |
| 2512 | Package Size | EIA imperial package, metric size 6.35mm × 3.20mm |
| F | Tolerance Grade | F = ±1% tolerance (J = ±5%, B = ±0.1%) |
| 2K00 | Resistance Value | 2KΩ (2KR), 4-digit resistance code |
| E04Z | Suffix Code | TCR and packaging specification, corresponding to TCR ±100ppm/℃, tape & reel packaging, RoHS compliant |
The complete interpretation: Ever Ohms CRH series, 2512 package, 2KΩ resistance, ±1% tolerance, 2W power, ±100ppm/℃ temperature coefficient high-power thick film chip resistor.
II. Product Parameters
Core electrical and physical parameters of CRH2512F2K00E04Z:
| Parameter | Specification |
|---|---|
| Package Size | 2512 (imperial), 6.35mm × 3.20mm |
| Nominal Resistance | 2KΩ (2KR) |
| Resistance Tolerance | ±1% (Grade F) |
| Rated Power | 2W (continuous operation at 70℃ ambient) |
| Temperature Coefficient (TCR) | ±100ppm/℃ |
| Maximum Operating Voltage | 200V |
| Overload Voltage | 300V |
| Operating Temperature Range | -55℃ ~ +155℃ |
| Resistor Type | Thick Film |
| Insulation Resistance | ≥100MΩ |
| Environmental Compliance | RoHS compliant (2011/65/EU), REACH SVHC free |
Key Parameter Analysis:
Power Density Breakthrough is the most distinctive technical feature of CRH2512F2K00E04Z. Standard 2512 package thick film resistors typically offer only 1W rated power, while the Ever Ohms CRH series elevates this to 2W through optimized thick film paste formulations, ceramic substrate thermal pathways, and multilayer electrode designs. This means engineers can achieve double the power margin without increasing PCB footprint—a critical advantage for space-constrained designs requiring higher power handling capability.
Temperature Characteristics: TCR is strictly controlled at ±100ppm/℃, with operating temperature ranging from -55℃ to +155℃. Compared to standard CR series (TCR typically between ±200ppm/℃ and ±400ppm/℃), the CRH series maintains more stable resistance accuracy during prolonged full-load operation in industrial power supplies or wide-temperature automotive electronics applications.
Short-time Overload Capability: CRH2512F2K00E04Z can handle short-time overload power up to 3W (within 10 seconds), suitable for switching power supplies, motor drives, and other applications prone to current fluctuations.
III. Applications
CRH2512F2K00E04Z (2512 2K 2W) is widely used across various industries due to its 2W power, 2K resistance, and stable parameters:
(1) Power Management
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Switching power supply (SMPS) high-side voltage dividers and auxiliary feedback circuits
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DC-DC converter voltage sampling and feedback networks
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Power adapters, LED driver power supply current limiting and voltage divider circuits
(2) Industrial Control and Motor Drives
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Bus voltage sampling and voltage division in industrial inverters and servo drives
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Gate bleed resistors in BLDC motor drives
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Power circuits in variable frequency drives and UPS systems
(3) Automotive Electronics
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Voltage sampling and balancing circuits in new energy vehicle BMS
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High-voltage side detection in OBC on-board charging modules
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AEC-Q200 automotive grade certified, suitable for automotive electronic control units
(4) Communications and Medical Equipment
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Communication base station power modules
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Front-end signal conditioning circuits in medical monitors and ventilators
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Signal conditioning and voltage divider chains in CT, ultrasound, and other medical imaging equipment
(5) Consumer Electronics and Computing
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Power management circuits in motherboards, graphics cards, and other computer-related products
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Power modules in smart home and home appliance products
IV. Market Positioning
The CRH series represents the core product line of Ever Ohms, positioned as “high-power thick film chip resistors” . Ever Ohms is a well-known Taiwanese chip resistor manufacturer, with the CRH series targeting the mid-to-high-end high-power thick film market—distinguishing itself from ordinary domestic resistors through superior process technology while competing with Japanese brands (such as KOA and ROHM) on cost-performance ratio.
The CRH series directly competes with same-tier high-power offerings from Yageo, Uniohm, Vishay, and Panasonic, delivering comparable performance with competitive pricing—clearly positioned as an import substitution solution in mid-to-high-end industrial control, automotive, and new energy applications.
Within the product matrix, the 2512 2K 2W specification holds a particularly clear position: delivering 2W power in a 2512 package, meeting engineers’ demand for miniaturization while providing ample power margin. Compared to Ever Ohms' own standard CR2512 (1W), the CRH2512 often eliminates the need for a parallel resistor in the same footprint—resulting in a shorter BOM and cleaner layout, which is the fundamental reason it is repeatedly selected in compact power modules.
V. Competitive Analysis
In the niche specification of 2512 package, 2KΩ resistance, ±1% tolerance, and 2W power, market competition is intense. International brands including Vishay, Yageo, ROHM, and Panasonic, as well as domestic brands such as Uniohm, Fenghua, Walter, and TASMC, have all launched corresponding products.
5.1 Comparison with International Brands
Vishay CRCW2512 Series: The Vishay CRCW2512 series offers only 1W standard power in 2512 package—half the power of the Ever Ohms CRH series in the same package. While Vishay holds a slight advantage in extreme environmental adaptability, unit prices are typically 30% higher than Ever Ohms products, with lead times often exceeding 8 weeks.
Yageo RC2512 Series: The Yageo RC2512 series offers 2W power options, but tolerance is typically ±5% with temperature coefficient reaching ±200ppm/℃. In contrast, the Ever Ohms CRH2512F2K00E04Z delivers ±1% tolerance and ±100ppm/℃ TCR at the same 2W power—a clear parametric advantage.
ROHM and Panasonic: Japanese brands excel in low-TCR models but command higher prices and longer lead times, creating significant cost压力 in high-volume applications.
5.2 Comparison with Domestic Brands
Uniohm: Uniohm also achieves 2W power in 2512 package using a copper substrate + high-purity alumina ceramic composite structure. Both brands are in the same tier for power density, with Ever Ohms holding an edge in temperature rise control and long-term stability.
Fenghua: Products from Fenghua and similar brands are typically 5%-10% lower in price than Ever Ohms, but show gaps in critical parameters such as high-temperature load life and temperature drift consistency.
5.3 Competitive Summary
| Comparison Dimension | Ever Ohms CRH2512F2K00E04Z | Vishay CRCW2512 | Yageo RC2512 | Uniohm/Fenghua |
|---|---|---|---|---|
| Package | 2512 | 2512 | 2512 | 2512 |
| Power | 2W | 1W | 2W | 2W |
| Tolerance | ±1% | ±1%/±5% | ±5% | ±1%/±5% |
| TCR | ±100ppm/℃ | ±100ppm/℃ | ±200ppm/℃ | ±100~±200ppm/℃ |
| Price | Medium | High (+30%+) | Medium | Lower (-5%~10%) |
| Lead Time | Short | Long (>8 weeks) | Medium | Medium |
Overall, the Ever Ohms CRH2512F2K00E04Z matches or closely approaches international brands in performance metrics, excels in the balance of power density (2W in 2512) , accuracy (±1%) , and temperature characteristics (±100ppm/℃) , while offering clear advantages in cost and lead time. With ample standard stock availability, it represents a compelling selection consideration for R&D projects and mass production requiring fast turnaround.
VI. Authorized Distributors
Shenzhen Shunhai Technology Co., Ltd. is the official first-tier authorized distributor of Ever Ohms in mainland China, having held the Ever Ohms distribution authorization since 2017. Choosing Shunhai Technology for procurement of Ever Ohms resistors such as CRH2512F2K00E04Z provides customers with multiple guarantees and value-added services, including stable stock supply, complete technical datasheet support, and volume pricing quotations.
HNST Shop (hnstshop.com) offers online inquiry and one-stop procurement services for the complete Ever Ohms CRH series product portfolio, with real-time inventory查询, product datasheets, and pricing information.
