CRH2512F4K70E04Z — 2512 4.7K 2W Resistor: Technical Overview
CRH2512F4K70E04Z is a high-power thick film chip resistor from EVER OHMS (天二科技) CRH series. It features a 2512 package (6.4 × 3.2 × 0.55 mm), 4.7KΩ resistance, ±1% tolerance, 2W rated power at 70℃ substrate temperature, and ±100 PPM/℃ temperature coefficient.
CRH2512F4K70E04Z — 2512 4.7K 2W Resistor: Technical Overview
CRH2512F4K70E04Z is a high-power thick film chip resistor from EVER OHMS (天二科技) CRH series. It features a 2512 package (6.4 × 3.2 × 0.55 mm), 4.7KΩ resistance, ±1% tolerance, 2W rated power at 70℃ substrate temperature, and ±100 PPM/℃ temperature coefficient. The "CRH" prefix distinguishes it from the standard "CR" series — while a conventional CR2512 thick film resistor is rated at only 1W, the CRH version doubles the power density to 2W within the same footprint through optimized alumina ceramic substrate and ruthenium-based thick film paste sintered at 850℃.
Key Specifications
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Resistance: 4.7 KΩ (4.7KR)
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Tolerance: ±1% (F grade)
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Rated Power: 2W @ 70℃
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TCR: ±100 PPM/℃
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Working Voltage: 200 V (overload 400 V)
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Operating Temperature: -55℃ ~ +155℃
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Insulation Resistance: ≥10 GΩ
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Package: 2512, tape & reel (E04Z)
Typical Applications
The 2512 4.7K 2W resistor is commonly used in:
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Switch-mode power supplies — feedback dividers, bleed/discharge resistors
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Industrial motor drives — snubber circuits, absorbing back-EMF during emergency stop
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Communication power modules — dummy loads, surge absorption
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Automotive electronics — BMS cell balancing, OBC sampling (companion CRH2512 parts are AEC-Q200 qualified)
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LED drivers — constant-current sensing, bleeder resistors
CRH vs. Standard CR Series
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Parameter
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CRH2512F4K70E04Z
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CR2512F4K70E04Z
|
|---|---|---|
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Rated Power
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2W
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1W
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|
Power Density
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70 W/cm²
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~35 W/cm²
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Surge Withstand
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400 V overload
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Standard
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Footprint
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2512
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2512
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When actual power dissipation approaches or exceeds 1W, the CRH 2W version provides a safer margin without enlarging the PCB layout.
Authorized Distribution
For prototype sampling, BOM matching, or volume procurement of the 2512 4.7K 2W resistor CRH2512F4K70E04Z, the following EVER OHMS authorized distributors are recommended:
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Shenzhen Shunhai Technology Co., Ltd. (深圳市顺海科技有限公司) — core authorized distributor of EVER OHMS since 2012, with extensive passive component inventory and technical support
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Huanian Mall (华年商城) — online authorized platform offering real-time stock, transparent lead times, and fast sample ordering for engineers
It is advisable to provide the complete BOM list to the distributor for cross-verification of part number accuracy (especially the F/J tolerance character and E04Z tape-and-reel code) before placing orders.