Ever Ohms CRH2512F220RE04Z 2512 220Ω 2W High-Power Thick Film Chip Resistor with ±1% Tolerance
220Ω High-Power Thick Film Chip Resistor
,2W Rated Power 2512 Chip Resistor
,±1% Tolerance SMD Resistor
CRH2512F220RE04Z 2512 220R 2W Ever Ohms High-Power Thick Film Chip Resistor
Part Number Breakdown
CRH2512F220RE04Z is a standard part number from Ever Ohms Technology for high-power thick film chip resistors. Each field is explained below:
| Field | Meaning | Description |
|---|---|---|
| CRH | High-Power Thick Film Series | Ever Ohms' product line developed specifically for high-power applications |
| 2512 | Package Size | Imperial code corresponding to 6.35mm × 3.10mm, a large-footprint chip resistor |
| F | Tolerance Grade | ±1%, meeting the consistency requirements of most precision circuits |
| 220R | Nominal Resistance | 220Ω, a mid-range resistance value |
| E04Z | Packaging Code | Standard tape-and-reel, 4K per reel, compatible with automated SMT lines |
The complete definition is: Ever Ohms high-power thick film chip resistor, 2512 package, 220Ω resistance, ±1% tolerance, 2W rated power, TCR ±100PPM/℃.
Key Parameters
| Parameter | Specification |
|---|---|
| Brand | Ever Ohms Technology |
| Product Type | High-Power Thick Film Chip Resistor |
| Package Size | 2512 (6.35mm × 3.10mm × 0.55mm) |
| Nominal Resistance | 220Ω (220R) |
| Resistance Tolerance | ±1% (Grade F) |
| Rated Power | 2W (at 70℃ ambient) |
| Temperature Coefficient (TCR) | ±100PPM/℃ |
| Operating Temperature Range | -55℃ to +155℃ |
| Maximum Working Voltage | 200V |
| Packaging | 4,000 pcs/reel, tape-and-reel |
| Soldering Method | Reflow / Wave soldering compatible |
| Environmental Standard | RoHS compliant |
Product Advantages
High Power Density. The 2512 package provides a large heat dissipation area. Ever Ohms optimizes thick film paste formulation and substrate thermal structure to achieve a 2W rating, double that of standard 2512 chip resistors. This allows the 2512 220R 2W resistor to replace some through-hole resistors in power management and motor drive applications, significantly reducing PCB area.
Stable Resistance Accuracy. The ±1% tolerance combined with ±100PPM/℃ TCR ensures controlled resistance drift across a wide temperature range. For the 220Ω mid-range value, temperature drift stays within one ten-thousandth per degree Celsius, satisfying current sensing and voltage divider networks.
Excellent Solderability and Mechanical Strength. Thick film process on high-purity alumina substrate delivers outstanding resistance to soldering thermal shock. Under reflow peak temperature of 260℃, resistance change remains within standard limits. The three-layer terminal electrode (Ag/Ni/Sn) provides excellent solder wettability and high solder joint reliability, suitable for high-density double-sided mounting.
Wide Environmental Adaptability. The -55℃ to +155℃ operating range covers industrial-grade and partial automotive electronics environments. In high-humidity and high-sulfur conditions, thick film resistors offer better anti-sulfuration performance than standard thin film products, making them suitable for outdoor power supplies and industrial controllers.
Automated Production Compatibility. Standard tape-and-reel packaging with 8mm carrier tape supports direct SMT line feeding. For manufacturers purchasing in volume, this feature significantly reduces manual insertion costs and improves overall line efficiency.
Typical Applications
Switching Power Supplies and Adapters. In AC-DC and DC-DC converter feedback dividers, soft-start circuits, and current limit detection loops, the 2512 220R 2W resistor handles power dissipation tasks. The 220Ω value is commonly used for voltage divider sampling in 48V input buck circuits, and the 2W power margin effectively reduces resistor body temperature rise, extending overall power supply life.
LED Drivers and Lighting Control. In high-power LED constant-current drive circuits, 220Ω resistors serve for current sensing or MOSFET gate drive current limiting. The large 2512 package helps heat dissipate quickly through PCB copper, preventing localized overheating that accelerates LED lumen depreciation.
Motor Control and Inverters. In BLDC motor drive pre-driver circuits and braking resistor networks, this part absorbs regenerative energy or sets bias voltage. Its 2W power capability and ±1% accuracy provide a stable signal reference for closed-loop motor speed control.
Industrial Automation Equipment. In PLC analog input modules and sensor signal conditioning circuits, 220Ω resistors are used for I/V conversion or filtering networks. Industrial sites experience large temperature swings and strong electromagnetic interference; the high reliability and wide temperature characteristics of Ever Ohms' CRH series ensure long-term system stability.
New Energy and Energy Storage Systems. In photovoltaic inverters and energy storage BMS balancing circuits and communication interfaces, applications require chip resistors that withstand certain power levels while maintaining stable resistance. The 2512 package 220R 2W product offers both power handling and space-saving advantages.
Sourcing and Purchasing Recommendations
When selecting CRH2512F220RE04Z during the design phase, engineers should calculate resistor temperature rise based on actual power dissipation and maintain at least a 30% power derating margin. During PCB layout, maximize copper foil area connected to resistor pads or add thermal vias to fully realize the 2W rated performance.
For volume purchasing and technical support, we recommend obtaining genuine products through authorized channels. For complete datasheets, sample requests, or lead-time inquiries, please contact the following professional distributors:
Shenzhen Shunhai Technology Co., Ltd. — Authorized distributor of Ever Ohms Technology, maintaining full CRH series inventory. Supports small-batch samples and large-volume orders, offering BOM kitting and technical support services.
HuaNian Mall — Professional electronic component spot trading platform, with complete availability of 2512 220R 2W resistor models, short lead times, transparent pricing, and support for online ordering with fast delivery.
