CRH2512F12K0E04Z 2512 12K 2W Ever Ohms High-Power Thick Film Chip Resistor – Technical Overview
1. Product Introduction
CRH2512F12K0E04Z is a flagship model within the CRH series of high-power thick film chip resistors manufactured by Ever Ohms (Tian'er Technology). It adopts a 2512 imperial package (metric 6432, dimensions 6.35mm × 3.20mm), with a nominal resistance of 12KΩ (12KR), precision of ±1% (Class F), rated power of 2W, and temperature coefficient of ±100ppm/℃. The suffix E04Z denotes tape-and-reel packaging (4,000 pieces per reel), and the product complies with EU RoHS and REACH environmental regulations.
2. Model Nomenclature
The Ever Ohms CRH series adopts a standardized coding system. "CRH" designates the high-power thick film chip resistor product line; "2512" indicates the imperial package size; "F" denotes ±1% precision; "12K" represents the nominal 12KΩ resistance; "E04Z" corresponds to the temperature coefficient and packaging specifications. This naming convention enables engineers to quickly verify key parameters during the selection phase.
3. Key Electrical Characteristics
3.1 Power Density Breakthrough – Double Power in Same Package
Within the 2512 package category, standard thick film chip resistors typically offer 1W rated power. CRH2512F12K0E04Z elevates power handling capability to 2W without increasing PCB footprint—a 100% increase. This breakthrough stems from Ever Ohms' deep optimization of thick film processes: improved ceramic substrate thermal pathways, optimized resistive paste composition, and enhanced electrode heat dissipation structures. Power density reaches 70W/cm².
3.2 Wide Temperature Range and Low TCR
The resistor operates across a temperature range of -55℃ to +155℃. The ±100ppm/℃ low temperature coefficient of resistance (TCR) ensures resistance stability under extreme thermal conditions. Within a 100℃ temperature rise, resistance variation does not exceed 1%, delivering tangible engineering value for outdoor power supplies and automotive electronics requiring long-term thermal stability.
3.3 Voltage Ratings and Insulation
Maximum working voltage is 200V, with overload voltage of 400V and insulation resistance exceeding 10GΩ. The thick film process combined with a three-layer electrode structure maintains low drift characteristics under prolonged loading.
3.4 Precision and Reliability
The ±1% precision level provides sufficient signal fidelity for 12KΩ resistance in voltage divider networks and signal conditioning circuits. The product complies with ISO9001, IATF 16949, and AEC-Q200 automotive-grade certification standards.
4. Process and Materials
Ever Ohms employs ruthenium-based oxide paste sintered onto an alumina ceramic substrate at 850℃ to form the resistive layer, with a glass glaze protective coating that provides excellent moisture and corrosion resistance. The product contains no REACH SVHC substances (1907/2006/EC).
5. Typical Applications
CRH2512F12K0E04Z (2512 12K 2W) serves a wide range of applications:
- Switching Power Supplies and DC-DC Converters: The 12KΩ resistance is commonly used in feedback voltage divider networks and start-up circuits, with 2W power margin providing ample derating headroom.
- Industrial Control and Inverters: Serves voltage clamping functions in buffer absorption circuits of industrial inverters and servo drives.
- Automotive Electronics: Validated and applied in new energy vehicle battery management systems (BMS) and engine control units.
- LED Lighting Drivers: The 12KΩ value is frequently used in current limiting or current sharing networks.
- Medical Equipment: Power supplies for ultrasound machines and patient monitors demand stringent temperature drift and reliability performance, matching the capabilities of the CRH series.
The 12KΩ value falls within the medium resistance range, finding broad application in current limiting, voltage division, buffering, pre-charge, and RC snubber circuits—supporting BOM standardization efforts.
Recommended similar products:
| Part Number | Parameter |
| CRH2512F100RE04Z | 2512 100R 2W 1% |
| CRH2512F10K0E04Z | 2512 10K 2W 1% |
| CRH2512F10R0E04S | 2512 10R 2W 1% |
| CRH2512F110RE04Z | 2512 110R 2W 1% |
| CRH2512F11R0E04Z | 2512 11R 2W 1% |
| CRH2512F120KE04Z | 2512 120R 2W 1% |
| CRH2512F120RE04Z | 2512 120R 2W 1% |
| CRH2512F12K0E04Z | 2512 12K 2W 1% |
| CRH2512F12R0E04Z | 2512 12R 2W 1% |
6. Supply Channels and Technical Support
Ever Ohms has established a strong presence in the high-power thick film resistor market, with production lines covering the full range from 0402 to 2512 packages. Authorized distributors with genuine stock for CRH2512F12K0E04Z include Shenzhen Shunhai Technology Co., Ltd. and Huanian Mall.
Shenzhen Shunhai Technology Co., Ltd. is an officially authorized distributor of Ever Ohms, with authorization valid through 2027. Each batch of materials can be provided with original factory traceability documentation. Shunhai Technology is a professional technical distributor specializing in high-tech semiconductors and passive components, offering full product line coverage and stable inventory.
Huanian Mall (www.hnstshop.com) is an online component procurement platform developed by Shunhai Technology, featuring genuine现货, one-stop BOM fulfillment, stable lead times, and full-process technical support. The platform supports small-batch prototyping, medium-batch trial production, mass production, and long-term forward ordering. Both distributors maintain bulk inventory and support BOM matching and technical selection consulting, covering the entire lifecycle from R&D prototyping to volume production.
Engineers are encouraged to request datasheets and reliability test reports from distributors to verify device performance under specific temperature ranges and load conditions.
