CRH2512F330RE04Z 2512 330R 2W EVER OHMS Resistor – Detailed Introduction
1. Product Overview
The CRH2512F330RE04Z is a representative model from EVER OHMS’s CRH series of high-power thick film chip resistors. EVER OHMS, established in 1988, possesses comprehensive R&D capabilities and manufacturing technologies in chip resistors and resistor networks, holding ISO-9001, ISO-TS16949, TTQS certifications, and AEC-Q200 automotive electronics quality standards.
This device adopts the standard 2512 package (metric dimensions 6.35mm × 3.2mm), with a nominal resistance of 330Ω (330R), rated power of 2W, and precision of ±1% (Class F). In high-density PCB designs, this resistor provides sufficient power margin within limited board space, making it suitable for power management, current sensing, LED driving, and industrial control applications where both power handling and stability are critical.
The CRH series builds upon the standard CR series thick film resistors by optimizing thick film paste formulations, ceramic substrate thermal structures, and electrode designs, achieving a significant increase in power handling capability. While conventional 2512 package thick film resistors are typically rated at only 1W, the CRH series approximately doubles the power density through thick film paste optimization and electrode process improvements.
2. Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer | EVER OHMS |
| Model | CRH2512F330RE04Z |
| Package | 2512 (6.35mm × 3.2mm) |
| Resistance | 330Ω (330R) |
| Tolerance | ±1% (Class F) |
| Rated Power | 2W (@70°C) |
| Temperature Coefficient (TCR) | ±100ppm/°C |
| Maximum Working Voltage | 200V |
| Overload Voltage | 400V |
| Operating Temperature Range | -55°C ~ +155°C |
| Resistor Type | Thick Film |
| Compliance | RoHS, REACH |
| Packaging | Tape & Reel, 4000pcs/reel |
Model code breakdown: CRH = High Power Thick Film Chip Resistor Series; 2512 = Package Size; F = ±1% Tolerance; 330R = 330Ω Nominal Resistance; E04 = ±100ppm/°C TCR; Z = Tape Packaging.
3. Technical Features
High Power Density Design
The most prominent technical feature of the CRH2512F330RE04Z is its “power-up” capability—achieving 2W rated power in the standard 2512 package. The series employs ruthenium-based oxide thick film technology with a resistor layer thickness of 100μm, achieving a power density of approximately 70W/cm², over 5 times that of thin film resistors. Full power operation is possible at ambient temperatures up to 70°C; derating is required when board temperatures rise further.
Excellent Temperature Stability
The ±100ppm/°C temperature coefficient ensures stable resistance values across a wide temperature range. Combined with the -55°C to +155°C operating temperature range, this model adapts to applications ranging from extreme cold environments to high-temperature industrial scenarios. The ±1% tolerance meets the precision requirements of most industrial-grade circuits for voltage division, sampling, and biasing applications.
High Reliability and Surge Withstanding
Capable of withstanding instantaneous pulses at twice the rated voltage and 100A pulse current within 5ms. The 96% alumina ceramic substrate delivers approximately 40% higher thermal conductivity compared to conventional substrates. The termination electrodes feature a three-layer structure (silver/nickel/tin), ensuring reliable metallurgical bonding with PCB pads along with excellent solderability and solder heat resistance.
Environmental Adaptability
The product complies with RoHS environmental directives, with lead-free termination plating meeting current electronics manufacturing environmental standards. The 155°C upper operating temperature enables stable operation in enclosed equipment or high-temperature environments. Moisture resistance, salt fog resistance, and anti-sulfurization performance have been verified through standard testing.
4. Typical Applications
Switching Power Supplies and DC-DC Converters
In Buck, Boost, and other topologies, the 330Ω resistance is commonly used in feedback voltage divider networks, soft-start timing, and current sensing auxiliary loops. The 2W power rating withstands energy冲击 during startup or abnormal conditions, reducing failure risks due to overload.
LED Lighting Drivers
Sampling resistors and bias resistors in constant current driver circuits frequently utilize 2512 package specifications. The 330Ω value combined with 2W power provides ample power reserve for LED current limiting applications.
Communications Equipment
Signal processing and power management circuits in mobile phones, fax machines, and base station equipment.
Computer and Peripheral Devices
Power management modules in motherboards, servers, and storage devices.
Measurement Instruments
Precision measurement circuits in electricity meters, navigation equipment, and industrial instruments.
Automotive Electronics
Compliant with AEC-Q200 standards, suitable for automotive electronic systems.
| Model | parameter |
| CRH2512F270RE04Z | 2512 270R 2W 1% |
| CRH2512F27K0E04Z | 2512 27K 2W 1% |
| CRH2512F27R0E04Z | 2512 27R 2W 1% |
| CRH2512F2K00E04Z | 2512 2K 2W 1% |
| CRH2512F2K40E04Z | 2512 2.4K 2W 1% |
| CRH2512F2R00E04S | 2512 2R 2W 1% |
| CRH2512F30R0E04Z | 2512 30R 2W 1% |
| CRH2512F330RE04Z | 2512 3370R 2W 1% |
| CRH2512F33K0E04Z | 2512 33K 2W 1% |
5. Selection and Procurement Recommendations
In 24V power systems, a 330Ω resistor dissipates approximately 1.75W—making the 2512 330R 2W resistor a more reliable choice than 1W versions, eliminating temperature rise concerns under full load. The CRH2512F330RE04Z is supplied in tape packaging with 4,000 pieces per reel. For volume procurement and technical selection, it is recommended to source through EVER OHMS’s official authorized channels to ensure genuine products and professional technical support.
Shenzhen Shunhai Technology Co., Ltd. is EVER OHMS’s official first-tier authorized distributor in mainland China, having represented the full EVER OHMS resistor product line since 2017. The company provides direct factory supply, ample inventory, and a technical support team to assist with circuit design and sample testing. Shunhai Technology holds the 2026 EVER OHMS distributor certificate, maintains over 50 million pieces in inventory, supports small-batch orders (minimum 10 pieces), and offers delivery within 30 minutes. The company’s professional FAE team provides free selection guidance, circuit design optimization recommendations, thermal design, and current matching analysis, with service capabilities validated by industry leaders including BYD and Huawei.
Huanian Mall (www.hnstshop.com) is an EVER OHMS officially certified online authorized sales platform, providing online inquiries, datasheet downloads, and one-stop procurement services for the full EVER OHMS product range. The platform supports small-batch orders with real-time inventory visibility and price comparison tools. All materials are sourced directly from the factory with full traceability, ensuring product authenticity.
6. Conclusion
The CRH2512F330RE04Z, as a 2512 package 330Ω 2W high-power thick film chip resistor, offers significant value across power management, industrial control, communications equipment, and automotive electronics applications through its high power density, wide operating temperature range, and excellent temperature stability. Procurement through official authorized channels—Shenzhen Shunhai Technology Co., Ltd. and Huanian Mall—ensures product authenticity and professional technical support.
