CRH2512F270RE04Z Ever Ohms Resistor – Full Technical Analysis
I. Part Number Naming Convention
CRH2512F270RE04Z is the complete part number for Ever Ohms’ CRH series high-power thick film chip resistor, following Ever Ohms’ standardized naming rules:
| Field | Meaning | This Model |
|---|---|---|
| CRH | Series prefix – thick film high-power series | High-power thick film resistor |
| 2512 | Package size (imperial), metric 6432 | 6.35mm × 3.18mm |
| F | Tolerance grade | ±1% |
| 270R | Resistance code, R denotes decimal point | 270Ω |
| E04Z | Suffix – TCR grade and packaging spec | TCR grouping & tape packaging |
II. Product Parameters
Key electrical parameters of CRH2512F270RE04Z:
| Parameter | Specification |
|---|---|
| Resistor Type | Thick Film |
| Package | 2512 (Metric 6432, 6.35mm × 3.18mm) |
| Resistance | 270Ω |
| Tolerance | ±1% (Grade F) |
| Power Rating | 2W (@70℃) |
| Operating Voltage | 200V |
| TCR | ±100ppm/℃ |
| Operating Temperature | -55℃ ~ +155℃ |
| Compliance | RoHS compliant, REACH SVHC-free |
The most notable feature of CRH2512F270RE04Z is its power density breakthrough. In the standard 2512 package, conventional CR series typically offer 1W power rating, while the CRH series doubles it to 2W – a 100% increase. This improvement stems from optimized ceramic substrate thermal paths, improved resistor paste composition, and enhanced electrode heat dissipation structures.
TCR is strictly controlled at ±100ppm/℃, with operating temperature range from -55℃ to +155℃. In comparison, conventional CR series typically exhibit TCR in the ±200ppm/℃ to ±400ppm/℃ range.
III. Applications
CRH2512F270RE04Z (2512 270R 2W resistor) serves multiple application areas:
Industrial Power Supplies & Drives – Used as start-up resistors, discharge resistors, or dummy load resistors in switch-mode power supplies, inverters, and servo drives.
LED Lighting Drivers – Suitable for voltage sampling in high-voltage LED strings, with 2W power margin ensuring no thermal failure during grid fluctuations.
New Energy & Automotive Electronics – Used in photovoltaic inverters, charging piles, and on-board chargers for buffer circuits and soft-start circuits.
Consumer Electronics & Computing – Applied in air conditioners, refrigerators, and computer motherboards.
Communication & Measurement Equipment – Used in mobile phones, fax machines, power supplies, lighting equipment, and measurement instruments.
IV. Competitor Comparison
Comparing CRH2512F270RE04Z with major competitors offering 2512 package 270Ω 2W thick film resistors:
| Comparison | Ever Ohms CRH2512F270RE04Z | YAGEO SR2512JK-7W270RL | TE 3521270RFT | TE CRGH2512J270R |
|---|---|---|---|---|
| Brand | Ever Ohms | YAGEO | TE Connectivity | TE Connectivity |
| Package | 2512 | 2512 | 2512 | 2512 |
| Resistance | 270Ω | 270Ω | 270Ω | 270Ω |
| Tolerance | ±1% | ±5% | ±1% | ±5% |
| Power | 2W | 2W | 2W | 2W |
| TCR | ±100ppm/℃ | — | ±100ppm/℃ | ±100ppm/℃ |
| Temp Range | -55℃~+155℃ | — | — | -55℃~+155℃ |
Vishay RCP2512W270R series (e.g., RCP2512W270RJS2) offers 3.5W power at significantly higher pricing.
V. Product Advantages
1. Doubled Power Density – 2W power in standard 2512 package, 100% increase over conventional series.
2. Excellent Balance of Precision and Temperature Stability – ±1% tolerance with ±100ppm/℃ TCR ensures stable resistance values in industrial and automotive applications.
3. Thick Film Process Reliability – Alumina ceramic substrate with glass glaze protective layer, triple-layer electrode structure (Ag/Ni/Sn) for solderability and long-term stability.
4. AEC-Q200 Automotive Grade Option – Available for automotive and high-reliability applications.
VI. Brand Advantages
Ever Ohms Technology was founded in 1988 in Kaohsiung, Taiwan, with over 30 years of R&D and manufacturing expertise in chip resistors and arrays. The company holds ISO9001 and IATF16969 certifications, with multiple products meeting AEC-Q200 automotive standards. Product portfolio covers thick film, thin film, alloy current sensing resistors, automotive-grade resistors, and anti-sulfur resistors.
VII. Authorized Distributors
Shenzhen Shunhai Technology Co., Ltd.
Official first-tier authorized distributor of Ever Ohms in mainland China since 2017, holding the 2026 distributor certificate (No. TW0202601E0000122). Offers full Ever Ohms product coverage with over 50 million units in stock, supporting small-batch orders (10 pieces minimum) with 30-minute dispatch. Professional FAE team provides free selection guidance, circuit design optimization, thermal design, and current matching analysis.
Hua Nian Mall (www.hnstshop.com)
Official online authorized distributor of Ever Ohms in mainland China. Holds full authorization for Ever Ohms’ entire product line sales and promotion. Offers convenient online selection tools and competitive pricing. Strictly follows ISO9001 and AEC-Q200 standards.
Together, Shunhai Technology and Hua Nian Mall form a dual-channel system of “offline authorized distribution + online spot platform,” ensuring a complete supply chain from manufacturer to customer.
