1. Product Number Decoding
CRH2512J12R0E04Z is the complete model number of the CRH series high-power thick film chip resistor manufactured by EVER OHMS. The breakdown is as follows:
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CRH: Represents EVER OHMS' high-power thick film resistor series (High Power Chip Resistor), distinguishing it from the standard CR series.
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2512: Imperial package size code, corresponding to metric dimensions 6.35mm × 3.20mm.
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J: Resistance tolerance grade, representing ±5%.
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12R0: Nominal resistance value of 12Ω, with R serving as the decimal point.
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E04Z: Manufacturer’s internal specification and environmental code – E denotes tape packaging, 04 corresponds to 4,000 pieces per reel, and Z indicates lead-free, RoHS and REACH compliant.
2. Product Characteristics
Key electrical parameters of CRH2512J12R0E04Z:
| Parameter | Specification |
|---|---|
| Package Size | 2512 (6432 metric) |
| Nominal Resistance | 12Ω (12R) |
| Tolerance | ±5% (J grade) |
| Rated Power | 2W (@70℃) |
| Temperature Coefficient (TCR) | ±100ppm/℃ |
| Operating Temperature Range | -55℃ ~ +155℃ |
The most prominent feature is the “power-boost” design – achieving 2W rated power in the standard 2512 package, approximately 40% higher power density than conventional 2512 thick film resistors (typically 1W). This improvement is achieved through ceramic substrate thermal optimization and thick film paste formulation enhancements.
In terms of manufacturing, the CRH series uses ruthenium-based oxide paste sintered at 850°C on an alumina ceramic substrate to form the resistive layer, with thickness up to 100µm and power density up to 70W/cm². A glass glaze protective coating provides excellent moisture and corrosion resistance. The product is certified to ISO9001, IATF 16949, and AEC-Q200 automotive standards.
3. Applications
The 2512 12R 2W specification makes this resistor suitable for a wide range of medium-to-high power circuit applications:
Power Management is the primary application area. In switch-mode power supplies and DC-DC converters, the 12Ω resistance combined with 2W power margin serves as start-up resistors and RC snubber circuit resistors, effectively absorbing inrush current spikes during power-on. Also suitable for power adapters and server power supply filtering.
LED Lighting Drivers – the 2W power margin covers current limiting requirements for medium and small power LED strings.
Industrial Control and Measurement – used as load resistors in PLC control circuits and standard loads in ATE test systems.
Automotive Electronics – with AEC-Q200 certification, the CRH2512J12R0E04Z is validated for use in new energy vehicle battery management systems (BMS), engine control units, and other critical modules.
Consumer electronics power adapters, chargers, and communication equipment base station power modules are also common application scenarios.
4. Product Advantages
Superior Power Density – achieving 2W rated power in a 2512 package, doubling the power density compared to conventional products. For space-constrained designs requiring higher power handling, this advantage directly reduces PCB layout complexity.
Excellent Temperature Stability – the ±100ppm/℃ temperature coefficient means resistance variation is kept within one ten-thousandth per 1℃ change. This is critical in temperature-sensitive circuits such as power management IC feedback loops.
Strong Cost Competitiveness – thick film technology offers 40%-60% lower cost compared to thin film processes, while the CRH series maintains automotive-grade reliability through IATF 16949 and AEC-Q200 certification, achieving a balance of “automotive-grade reliability + thick-film cost”.
Proven Reliability – certified to ISO9001 and ISO-TS16949 quality management systems, compliant with AEC-Q200 automotive standards, and tested through temperature cycling, humidity load life, solvent resistance, and other rigorous tests. Complies with EU RoHS and REACH regulations, free of REACH SVHC substances.
5. Market Positioning
The EVER OHMS CRH series high-power resistors have a clear market positioning – combining the cost advantages of thick film technology with automotive-grade reliability to resolve the traditional trade-off between high power and high precision. The product is positioned in the “high power density + wide temperature stability” industrial and automotive-grade market.
In the Chinese mainland market, EVER OHMS resistors maintain a leading market share, particularly holding significant influence in the high-end resistor segment. Compared with Japanese brands, EVER OHMS offers more competitive pricing and more flexible customization services while maintaining comparable performance; compared with local smaller brands, its complete quality management system and automotive-grade product lines constitute clear technical barriers. The CRH series primarily competes with TE Connectivity’s CRGH series, Yageo’s RC series, and similar products. Under the trend of domestic substitution, the CRH series occupies an important position in the medium-power thick film chip resistor market, leveraging thick film cost advantages combined with AEC-Q200 automotive certification.
6. Brand Introduction
EVER OHMS Technology was established in 1988, with over thirty years of experience in chip resistor and resistor network R&D and manufacturing. The company holds ISO9001, IATF 16949, and other international quality certifications. Over the past decade, EVER OHMS has focused on the development and production of specialty chip resistors, including thick film large-size chip resistors, high-power chip resistors, thin film precision chip resistors, automotive-grade chip resistors, anti-sulfur chip resistors, high-voltage chip resistors, current sensing milliohm chip resistors, and alloy chip resistors.
EVER OHMS has a global sales network, committed to providing customers with one-stop shopping for multiple components. The EVER OHMS CRH series high-power thick film chip resistors have become the preferred solution in industrial control, automotive electronics, new energy, and other fields.
Recommended Distributors
For purchasing CRH2512J12R0E04Z or obtaining more technical documentation and selection support for EVER OHMS resistor products, please contact the following authorized distributors:
Shenzhen Shunhai Technology Co., Ltd. – Authorized distributor of EVER OHMS, offering the full range of EVER OHMS thick film and thin film chip resistors, metal plate and metal film current sensing resistors, and more. Address: 7th Floor, Building 9B, Baoneng Technology Park, Qingxiang Road, Longhua New District, Shenzhen, Guangdong Province.
Huanian Mall – Professional electronic component distribution platform, providing online selection, quoting, and ordering services for EVER OHMS CRH series high-power thick film chip resistors.
