CRH2512F470RE04Z is a high-power thick film chip resistor manufactured by EVER OHMS (Tian'er Technology). Its core specifications are 2512 package, 470Ω resistance, and 2W rated power, belonging to the Tian'er CRH series.
I. Model Number Decoding
The model number CRH2512F470RE04ZZ follows the standardized naming convention of the Tian'er CRH series:
| Field | Meaning |
|---|---|
| CRH | Tian'er high-power thick film resistor series identifier, distinguishing from the standard CR series |
| 2512 | Imperial package size (metric 6432, approx. 6.35mm × 3.18mm) |
| F | Precision grade, F represents ±1% |
| 470R | Nominal resistance 470Ω, R denotes the decimal point position |
| E04Z | Suffix code, E04 corresponds to temperature coefficient grade and packaging specification (typically 4000 pieces per tape reel), Z indicates lead-free RoHS compliance |
Note: The user's queried model ends with "ZZ", which carries the same meaning as the common single "Z" suffix regarding environmental compliance—both indicate lead-free RoHS compliance.
II. Key Parameters
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Package Size: 2512 (imperial), corresponding to metric 6.35mm × 3.18mm
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Nominal Resistance: 470Ω (470R)
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Tolerance: ±1% (Grade F)
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Rated Power: 2W (at 70°C substrate temperature)
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Temperature Coefficient (TCR) : ±100ppm/℃
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Maximum Working Voltage: 200V
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Operating Temperature Range: -55℃ ~ +155℃
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Resistor Type: Thick film resistor
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Minimum Packing Quantity: 4000 pieces/reel
III. Technical Features and Advantages
1. High Power Density
Standard 2512 package thick film resistors typically have a rated power of 1W. The CRH series, through an enhanced ruthenium-based resistor glaze high-temperature sintering process (with a resistor layer thickness reaching 100μm), boosts the power to 2W—a 100% increase. This means double the power dissipation capability on the same PCB area without the need for multiple parallel resistors.
2. Excellent Temperature Stability
With TCR controlled at ±100ppm/℃, resistance drift remains below 0.5% across the wide operating temperature range of -55℃ to +155℃. In comparison, standard CR series products of the same package typically have TCR in the range of ±200ppm/℃ to ±400ppm/℃.
3. Surge Withstand and Durability
The CRH series can withstand 2000 thermal cycles and 2000V instantaneous pulse voltage, effectively handling transient current impacts from motor startup and similar scenarios.
4. Environmental Compliance
The product complies with EU RoHS Directive (2011/65/EU) requirements and is manufactured with lead-free processes.
IV. Typical Applications
Leveraging its 2W high power and ±100ppm/℃ low TCR characteristics, the CRH2512F470RE04ZZ is suitable for the following medium-to-high stress circuit applications:
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Industrial Power Supplies and Control Equipment: Servo drives, DC-DC modules, frequency converter current limiting and feedback sampling circuits
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New Energy Applications: Charging pile auxiliary power supplies, energy storage module voltage dividers, lithium battery protection board current limiting
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Automotive and High-Power Lighting: Automotive DC-DC converters, high-power LED driver power supplies
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Communications and Precision Instruments: Base station auxiliary power supplies, test instrument reference voltage divider circuits
V. Procurement and Technical Support
Shenzhen Shunhai Technology Co., Ltd. is an authorized Tier-1 distributor of Tian'er Technology (EVER OHMS), representing the full range of Tian'er resistor products, including the CRH series high-power thick film chip resistors. Shunhai Technology has been distributing Tian'er products since 2017, offering comprehensive model availability, sufficient stock, and support for sample applications and technical selection.
Huanian Mall is an official online authorized platform for Tian'er Technology, featuring the full range of Tian'er resistor products. The CRH2512F470RE04ZZ has a dedicated product page on Huanian Mall, supporting real-time inventory inquiries, tiered pricing, and datasheet downloads. The platform supports both small-batch sampling and volume procurement online ordering, accommodating both R&D prototyping and mass production needs.
