CRH2512F1R80E04S EVER OHMS High-Power Thick Film Chip Resistor - Complete Analysis
I. CRH Series Overview
The CRH series is the core high-power thick film chip resistor product line from EVER OHMS Technology. Founded in 1988, EVER OHMS has accumulated over three decades of R&D and manufacturing expertise in chip resistors and resistor networks, with certifications including ISO9001, IATF16949, TTQS, and compliance with AEC-Q200 automotive electronics standards.
Building upon the conventional CR series, the CRH series achieves a significant power leap within the same package footprint through optimized ceramic substrate thermal paths, improved resistor paste formulations, and enhanced electrode heat dissipation structures. The series covers eight package sizes from 0402 to 2512, with power ratings from 0.1W to 2W and resistance values from 10mΩ to 10MΩ. The 2512 package CRH series doubles the power rating from the conventional 1W to 2W—delivering twice the power dissipation capability on the same PCB footprint.
II. Part Number Decoding
EVER OHMS CRH series follows a standardized naming convention. Taking CRH2512F1R80E04S as an example:
| Field | Meaning | This Model |
|---|---|---|
| CRH | Series code - High-power thick film | CRH |
| 2512 | Package size - Imperial 2512 (Metric 6432) | 2512 (6.35mm × 3.2mm) |
| F | Tolerance - F=±1% | F (±1%) |
| 1R80 | Resistance value - 1.80Ω | 1.8Ω |
| E04S | Internal code - TCR, power rating, packaging | 2W / ±400ppm/℃ |
Tolerance codes: F=±1%, J=±5%, B=±0.1%. Suffix E04S corresponds to 2W power rating and ±400ppm/℃ TCR.
III. Key Parameters
| Parameter | Specification |
|---|---|
| Brand | EVER OHMS |
| Series | CRH High-Power Thick Film Chip Resistor |
| Package | 2512 (Imperial) / 6432 (Metric), 6.35mm × 3.2mm |
| Resistance | 1.8Ω (1R80) |
| Tolerance | ±1% (F grade) |
| Power Rating | 2W (at 70℃ ambient) |
| Max Operating Voltage | 200V |
| TCR | ±400ppm/℃ |
| Operating Temperature | -55℃ ~ +155℃ |
| Type | Thick Film Resistor |
| RoHS | Compliant (2011/65/EU) and REACH SVHC compliant |
The 2W power rating is specified at 70℃ ambient temperature. Derating is required when ambient temperature exceeds 70℃, reaching zero power at 155℃.
Recommended similar products:
| Part Number | Parameter |
| CRH2512F200KE04Z | 2512 200K 2W 1% |
| CRH2512F200RE04Z | 2512 200R 2W 1% |
| CRH2512F20K0E04Z | 2512 20K 2W 1% |
| CRH2512F20R0E04Z | 2512 20R 2W 1% |
| CRH2512F220KE04Z | 2512 200K 2W 1% |
| CRH2512F220RE04Z | 2512 220R 2W 1% |
| CRH2512F22K0E04Z | 2512 22K 2W 1% |
| CRH2512F22R0E04Z | 2512 22R 2W 1% |
| CRH2512F249RE04Z | 2512 249R 2W 1% |
IV. Product Advantages
1. Double Power in Same Footprint
Conventional 2512 thick film chip resistors are typically rated at 1W (at 70℃), while CRH2512F1R80E04S delivers 2W—a 100% increase in power capability without changing PCB layout. At 0.8W actual power dissipation, conventional 1W resistors offer only 20% derating margin, while the CRH series provides 60% margin, resulting in lower operating temperatures and significantly improved long-term reliability.
2. Cost-Performance Balance via Thick Film Technology
Ruthenium-based oxide paste is screen-printed and sintered at high temperature to form the resistive layer, combining low cost with high power density. ±1% tolerance paired with mature thick film process stability reduces circuit debugging effort in precision voltage divider and current sensing applications.
3. Wide-Temperature Stable Operation
-55℃ to +155℃ operating range covers extreme conditions from cold outdoor equipment to high-temperature industrial environments. AEC-Q200 qualification ensures resistance drift below 0.5% under 85℃/85%RH湿热 conditions.
4. SMT Production Friendly
Tape & Reel packaging supports standard reflow and wave soldering processes. Nickel/tin-plated terminations are optimized for high-volume automated SMT assembly.
V. Typical Applications
Power Management & Conversion
AC-DC switching power supplies, DC-DC converters, LED drivers, and fast charger adapters for voltage division, feedback networks, and inrush current suppression. The 2W power margin effectively handles startup inrush currents. The 1.8Ω low resistance is particularly suited for current sensing and load division.
Battery Management Systems (BMS) & Energy Storage
Lithium battery protection boards, power tools, drones, and energy storage BMS for cell voltage balancing circuits. 2W capability ensures effective thermal management during extended balancing operations.
Industrial Control
Servo drives and PLC systems for current sensing and voltage protection. High power margin prevents feedback resistor burnout during output short circuits.
New Energy Vehicles & Automotive Electronics
On-board chargers (OBC) and BMS current sensing. AEC-Q200 qualification ensures reliable operation under wide-temperature and vibration conditions.
Communications Infrastructure
5G base station RF power amplifier signal conditioning and power distribution circuits.
VI. Authorized Distributors
Shenzhen Shunhai Technology Co., Ltd. is an authorized distributor of EVER OHMS, covering the full range of thick film and thin film chip resistors, metal plate and metal film current sensing resistors. Huanian Mall (www.hnstshop.com) provides online purchasing and real-time stock inquiry for CRH2512F1R80E04S. For complete datasheets, technical selection support, or sample requests, please contact through the above channels.
