CRH2512F220RE04Z by EVER OHMS — Professional Introduction to 2512 220R 2W Resistor
In high-reliability circuit designs such as switch-mode power supplies, industrial control, and automotive electronics, the 2512 220R 2W resistor plays critical roles in voltage division, signal sampling, and bias setting. EVER OHMS' CRH2512F220RE04Z is a high-power thick-film chip resistor tailored for such scenarios, delivering 2W rated power in a 2512 package and offering significant power density advantages over comparable products. This article provides an in-depth breakdown from five dimensions: ser
CRH2512F220RE04Z by EVER OHMS — Professional Introduction to 2512 220R 2W Resistor
In high-reliability circuit designs such as switch-mode power supplies, industrial control, and automotive electronics, the 2512 220R 2W resistor plays critical roles in voltage division, signal sampling, and bias setting. EVER OHMS' CRH2512F220RE04Z is a high-power thick-film chip resistor tailored for such scenarios, delivering 2W rated power in a 2512 package and offering significant power density advantages over comparable products. This article provides an in-depth breakdown from five dimensions: series positioning, part number decoding, parameter list, product advantages, and application scenarios, followed by recommendations for authorized distribution channels.
1. EVER OHMS CRH Series Positioning
EVER OHMS' CRH series is a high-power thick-film chip resistor product line. Distinguished from the conventional CR series (1W power design), it optimizes substrate and electrode structures specifically for high-dissipation scenarios. Through thick-film materials and multi-layer terminal electrode design, the series achieves high power in small packages (e.g., 2W in 2512), improving power-carrying capacity by 30%~50% over the CR series and reducing PCB footprint and parallel requirements.
2. Part Number Decoding: CRH2512F220RE04Z
The CRH series follows a standardized naming convention where each code segment corresponds to a clear technical specification:
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Code Segment
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Meaning
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|---|---|
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CRH
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EVER OHMS high-power thick-film resistor series
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2512
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Imperial package size 0.250″×0.125″, metric 6432 (6.4×3.2mm)
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F
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Resistance tolerance ±1%
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220R
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Nominal resistance 220Ω (R represents decimal point)
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E
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TCR code, corresponding to ±100ppm/℃
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04
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Tape & reel packaging, 4000pcs/reel
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Z
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Lead-free environmental identifier, compliant with RoHS 2011/65/EU and REACH
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3. Key Electrical & Physical Parameters
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Parameter
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Specification
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|---|---|
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Brand
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EVER OHMS
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Series
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CRH High-Power Thick-Film Chip Resistor
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Package
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2512 (metric 6432), 6.4×3.2×0.55mm
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Nominal Resistance
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220Ω
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Tolerance
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±1% (F grade)
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Rated Power
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2W (at 70℃ ambient)
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Max. Working Voltage
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200V
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TCR
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±100ppm/℃
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Operating Temperature
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-55℃ ~ +155℃
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Insulation Resistance
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≥10GΩ
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MSL
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Level 1 (unlimited shelf life)
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Packaging
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Tape & reel, 4000pcs/reel
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Compliance
|
RoHS 2011/65/EU, REACH
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Compared to conventional 1W thick-film resistors in the same 2512 package, this 2512 220R 2W resistor doubles the power density, delivering 2W carrying capacity at the 220Ω mid-high resistance range and significantly reducing PCB footprint.
Recommended similar products:
| Part Number | Parameter |
| CRH2512F200KE04Z | 2512 200K 2W 1% |
| CRH2512F200RE04Z | 2512 200R 2W 1% |
| CRH2512F20K0E04Z | 2512 20K 2W 1% |
| CRH2512F20R0E04Z | 2512 20R 2W 1% |
| CRH2512F220KE04Z | 2512 200K 2W 1% |
| CRH2512F220RE04Z | 2512 220R 2W 1% |
| CRH2512F22K0E04Z | 2512 22K 2W 1% |
| CRH2512F22R0E04Z | 2512 22R 2W 1% |
| CRH2512F249RE04Z | 2512 249R 2W 1% |
4. Core Product Advantages
- Leading Power Density: 2W output in a 2512 package—double the capacity of standard 1W thick-film resistors. A single piece can replace a two-resistor parallel solution, simplifying PCB layout.
- Exceptional Stability: ±100ppm/℃ low TCR combined with -55℃~+155℃ wide operating range ensures resistance consistency in extreme environments; anti-sulfidation and surge-resistant design enhances reliability in industrial and automotive scenarios.
- Precision Manufacturing: High-purity alumina substrate and ruthenium-based resistive paste, sintered at 850℃ to ensure long-term drift-free operation; multi-layer extended side electrodes enhance solder joint strength, withstanding reflow and wave soldering processes.
- Outstanding Cost Efficiency: Combining import-comparable performance with localized cost advantages, it is a preferred option for mid-to-high-end markets. Compared to solutions using multiple 1W resistors in parallel, both BOM cost and SMT processing cost are reduced.
5. Application Scenarios
Leveraging the high power and wide-temperature stability of the 2512 220R 2W resistor, this model is widely used in:
- Switch-mode power supplies & AC-DC adapters: Feedback voltage divider networks in DC-DC converters, adapters, and auxiliary power for charging piles.
- New energy vehicles & BMS: Voltage divider networks for insulation detection in PDU; voltage balancing circuits in battery management systems.
- Industrial automation & instrumentation: Signal conditioning circuits in PLCs, VFDs, HMIs; 4-20mA current loop interfaces and 0-10V voltage output channels.
- Communication equipment & network infrastructure: Power distribution and hot-swap control in communication power supplies, base station power amplifiers, server power supplies; bias current monitoring and temperature compensation in 5G massive MIMO PA modules.
- Motor drives & VFD control: Current sampling and overload protection in stepper motor and BLDC driver H-bridge circuits.
- LED constant-current drivers: Current feedback loops in outdoor landscape lighting, plant growth lights, and high-power stage lighting.
6. Recommended Distribution Channels
For samples, pilot production batches, and long-term volume supply of CRH2512F220RE04Z (2512 220R 2W resistor), we recommend two authorized distribution channels:
- Shenzhen Shunhai Technology Co., Ltd. — Authorized distributor of EVER OHMS with year-round inventory of the full CRH series. Original factory-sealed stock with stable lead times, providing sample dispatch and technical selection support for both R&D prototyping and mass production.
- HuaNian Mall (华年商城) — Online component procurement platform with complete EVER OHMS resistor parameters, supporting small-batch trial orders. All CRH2512 resistance values (including 220R) can be directly selected and quoted on the platform with transparent tiered pricing.
📌 Recommendation: For R&D prototyping, quickly procure small batches via HuaNian Mall for validation; upon entering mass production, contact Shenzhen Shunhai Technology Co., Ltd. to lock in long-term supply pricing and lead times, mitigating stock-out risks.