CRH2512F18R0E04Z 2512 18R 2W EVER OHMS Resistor Technical Analysis
1. Product Overview
CRH2512F18R0E04Z is a representative model from the CRH series of high-power thick film chip resistors manufactured by EVER OHMS TECHNOLOGY CO., LTD. (Tian'er Technology). Founded in 1988 and headquartered in Kaohsiung, Taiwan, EVER OHMS is an established enterprise specializing in the R&D and manufacturing of chip resistors and resistor networks, certified with ISO-9001, ISO-TS16949, and TTQS, with products compliant with AEC-Q200 automotive electronics standards.
This model adopts a 2512 standard package (metric size 6.35mm × 3.20mm), with a resistance of 18Ω (18R), tolerance of ±1%, rated power of 2W, and temperature coefficient of ±100ppm/℃. CRH2512F18R0E04Z is a high-power chip resistor manufactured using thick film technology, with the core technical approach involving screen-printing resistor paste on an alumina ceramic substrate followed by high-temperature sintering to form the resistive layer.
2. Part Number Decoding
The complete part number CRH2512F18R0E04Z encodes comprehensive electrical and physical parameter information:
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CRH: Represents EVER OHMS high-power thick film resistor series (CR High Power), achieving power enhancement through material and process optimization over the standard CR series;
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2512: Imperial package size, corresponding to metric dimensions 6.35mm × 3.18mm;
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F: Resistance tolerance grade, indicating ±1%;
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18R0: Nominal resistance of 18Ω, where R denotes the decimal point position;
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E04Z: Manufacturer specification code, relating to packaging method, temperature coefficient, and environmental compliance information.
3. Key Electrical Parameters
| Parameter | Specification |
|---|---|
| Manufacturer | EVER OHMS (Tian'er Technology) |
| Series | CRH High-Power Thick Film Chip Resistor |
| Package Size | 2512 (6.35mm × 3.20mm) |
| Resistance | 18Ω (18R) |
| Tolerance | ±1% (F grade) |
| Rated Power | 2W (at 70℃ ambient temperature) |
| Temperature Coefficient (TCR) | ±100ppm/℃ |
| Maximum Operating Voltage | 200V |
| Operating Temperature Range | -55℃ ~ +155℃ |
| Resistor Type | Thick Film Resistor |
| Environmental Standards | RoHS, REACH, Lead-Free |
This 2512 18R 2W EVER OHMS resistor operates across a temperature range of -55℃ to +155℃ with a maximum working voltage of 200V, suitable for diverse temperature environments and voltage conditions.
Recommended similar products:
| Part Number | Parameter |
| CRH2512F150RE04Z | 2512 150R 2W 1% |
| CRH2512F15K0E04Z | 2512 15K 2W 1% |
| CRH2512F15R0E04Z | 2512 15R 2W 1% |
| CRH2512F16R0E04Z | 2512 16R 2W 1% |
| CRH2512F180KE04Z | 2512 180K 2W 1% |
| CRH2512F180RE04Z | 2512 180R 2W 1% |
| CRH2512F18R0E04Z | 2512 18R 2W 1% |
| CRH2512F1K00E04Z | 2512 1K 2W 1% |
| CRH2512F1K20E04Z | 2512 1.2K 2W 1% |
4. Technical Characteristics
4.1 High Power Density Design
The most notable technical advantage of CRH2512F18R0E04Z lies in its power density. Standard 2512 package thick film resistors typically have a rated power of 1W, while the EVER OHMS CRH series elevates power handling capability to 2W within the same physical dimensions through ceramic substrate thermal optimization and thick film paste formulation improvements. This enhancement is not merely parametric—it stems from deep optimization of thick film processes: improved ceramic substrate thermal paths, optimized resistor paste composition ratios, and enhanced electrode heat dissipation structures. Doubling the power capability within the same PCB footprint provides a critical solution for high-power-density circuit designs.
The CRH series employs 96% high-thermal-conductivity alumina ceramic substrates and ruthenium-based thick film resistor paste with high-temperature sintering processes. The series covers eight package sizes from 0402 to 2512, with power ratings ranging from 0.1W to 2W and resistance values spanning 10mΩ to 10MΩ.
4.2 Temperature Stability
The ±100ppm/℃ temperature coefficient ensures stable resistance values across a wide temperature range. Combined with the -55℃ to +155℃ operating temperature range, this 2512 18R 2W EVER OHMS resistor is suitable for applications ranging from low-temperature environments to high-temperature industrial scenarios.
4.3 Reliability and Environmental Compliance
The product complies with EU RoHS Directive (2011/65/EU) and REACH regulations, containing no REACH SVHC substances. Minimum packaging is 4,000pcs per reel, using tape and reel packaging.
5. Application Fields
Based on its high power density and wide temperature range characteristics, CRH2512F18R0E04Z finds extensive applications across multiple domains:
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Switching Power Supplies: Used in snubber circuits to effectively suppress voltage spikes during switching;
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Industrial Inverters: Used in braking circuits to dissipate regenerative energy during motor deceleration;
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LED Lighting: Current limiting and power distribution in high-brightness LED driver boards;
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Automotive Electronics: Power distribution and signal transmission in engine management systems and battery management systems (BMS);
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Power Modules: Energy conversion and protection in high-voltage, high-current circuits such as DC-DC converters;
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Communication Equipment: Filtering and voltage divider networks in base station power supplies and server power supplies.
Using conventional power chip resistors often requires multiple resistors in series or parallel to meet heat dissipation requirements. Directly selecting this 2512 18R 2W high-power resistor simplifies PCB layout while reducing BOM complexity and placement costs.
6. Authorized Distributors
EVER OHMS has established a comprehensive distributor network in mainland China, with Shenzhen Shunhai Technology Co., Ltd. and HuaNian Mall being two representative authorized distributors.
Shenzhen Shunhai Technology Co., Ltd. is a first-tier authorized distributor of EVER OHMS in mainland China. Established in 2012 and headquartered in BaoNeng Technology Park, Longhua, Shenzhen, Shunhai Technology has held official first-tier authorization from EVER OHMS since 2017, with the partnership extending nearly a decade and the 2026 authorization certificate remaining valid. Shunhai Technology holds the annual EVER OHMS official authorization certificate (Certificate No.: TW0202601E0000122) with direct factory supply qualifications. As a first-tier distributor, Shunhai Technology distributes the full EVER OHMS resistor product line, including thick film chip resistors, precision thin film resistors, alloy resistors, high-power resistors, and automotive-grade resistors, covering package sizes from 0402 to 2512, with over 50 million pieces in stock. For detailed datasheets and technical support for CRH2512F18R0E04Z, Shunhai Technology is available as a resource.
HuaNian Mall (www.hnstshop.com) is an officially certified online authorized distributor of EVER OHMS, operated by Shenzhen HuaNian Santian Electronics Co., Ltd., focusing on online spot procurement services for electronic components. In January 2026, following the affiliated company Shunhai Technology receiving the 2026 EVER OHMS authorization certificate, HuaNian Mall simultaneously obtained sales and promotion qualifications for the full EVER OHMS product line. HuaNian Mall provides spot sales and delivery services for EVER OHMS resistors, covering alloy resistors, precision resistors, capacitors, inductors, fuses, and other component categories, with all materials sourced directly from manufacturers and fully traceable.
For purchasing CRH2512F18R0E04Z or obtaining technical support for EVER OHMS resistors, please consult the above authorized distribution channels.
