Ever Ohms CRH2512F47R0E04Z 2512 Chip Resistor - 47 Ω, 2 W, ±1% Tolerance High Power Thick Film
47 Ω 2512 Chip Resistor
,2 W High Power Thick Film Chip Resistor
,±1% Tolerance CRH Series Resistor
The CRH2512F47R0E04Z is a high-power thick-film chip resistor from Ever Ohms Technology Co., Ltd. (EVER OHMS), belonging to the CRH series. It adopts a standard 2512 package (metric 6432, approx. 6.35 mm × 3.20 mm × 0.55 mm), with a nominal resistance of 47 Ω (47R), rated power of 2 W, tolerance of ±1%, and a temperature coefficient (TCR) of ±100 ppm/℃. Widely used in power management, industrial control, consumer electronics and automotive electronics, it is a "power-upgraded" alternative to conventional 1 W 2512 chip resistors.
Ever Ohms' CRH series follows a standardized naming convention. For CRH2512F47R0E04Z:
| Segment | Meaning |
|---|---|
| CRH | Series code — High-power thick-film chip resistor (distinct from the standard-power CR series) |
| 2512 | EIA package size, metric 6432 (6.35 mm × 3.20 mm) |
| F | Tolerance grade — F = ±1% (J = ±5%, B = ±0.1%) |
| 47R0 | Nominal resistance — R denotes the decimal point, 47R0 = 47 Ω |
| E04 | TCR/packaging code — ±100 ppm/℃, embossed tape |
| Z | Lead-free, RoHS-compliant packaging identifier |
| Parameter | Specification |
|---|---|
| Part Number | CRH2512F47R0E04Z |
| Brand | Ever Ohms (EVER OHMS) |
| Series | CRH High-Power Thick-Film Chip Resistor |
| Package | 2512 (6.35 × 3.20 × 0.55 mm) |
| Resistance | 47 Ω (47R) |
| Tolerance | ±1% (F grade) |
| Rated Power | 2 W (at 70℃ base temperature) |
| TCR | ±100 ppm/℃ |
| Max. Working Voltage | 200 V |
| Max. Overload Voltage | 300 V |
| Operating Temperature | -55℃ ~ +155℃ |
| Resistive Element | Ruthenium-based thick film on 96% alumina substrate, sintered at 850℃ |
| Compliance | RoHS (2011/65/EU), REACH, lead-free & halogen-free |
| Packaging | 4000 pcs/reel (tape and reel) |
The 2512 47R 2W resistor doubles the power of a conventional 1 W 2512 thick-film part, achieving a power density of approx. 70 W/cm². At 47 Ω in a 24 V system, a current of ~0.7 A yields ~1.1 W dissipation; the 2 W rating provides the necessary margin for surge, pulse and high-temperature operation.
Leveraging its high power, wide-temperature stability and pulse withstand capability, the 2512 47R 2W is used across consumer, industrial and new-energy circuits:
- SMPS & DC-DC modules: feedback dividers, soft-start and dummy-load circuits.
- Industrial control & motor drives: inverters, servo drives, PLC signal conditioning, inrush current limiting.
- LED drivers & appliance control: constant-current sensing, over-current protection, air-conditioner inverter mainboards.
- Automotive electronics: BMS balancing, OBC, body control modules — benefiting from AEC-Q200 qualification and wide operating temperature.
Derating note: reserve ~30% power margin (continuous load ≤ 1.4 W); at ambient above 85℃, derate to ≤ 1.6 W and provide ≥ 10 mm² of copper heatsink area around the pads.
| Parameter | Ever Ohms CRH2512F47R0E04Z | Yageo RC2512 | Uniohm CR2512 | Vishay CRCW2512 |
|---|---|---|---|---|
| Rated Power | 2 W | Typically 1~1.5 W | 2 W | 2 W |
| TCR | ±100 ppm/℃ | ±150~±200 ppm/℃ | ±150~±200 ppm/℃ | ±50~±100 ppm/℃ |
| Max. Working Voltage | 200 V | ~150 V | ~150~180 V | 200 V |
| Operating Temp. | -55℃~+155℃ | -55℃~+125℃ | -55℃~+155℃ | -55℃~+155℃ |
| AEC-Q200 | Yes | No (standard series) | Optional | Select models |
| Positioning | High power density, strong cost-performance | Broad brand presence | Price-competitive | High-end, higher cost |
Conclusion: Yageo's standard equivalent is typically 1~1.5 W and shows larger TCR drift; Uniohm matches power but trails in TCR and surge voltage; Vishay offers superior precision at a significantly higher price and longer lead time. Ever Ohms CRH2512F47R0E04Z balances power density, TCR control, surge capability and BOM cost, making it well suited to volume production.
- High power in compact size: 2 W in a standard 2512 footprint; one resistor replaces two parallel 1 W 2512 parts, saving board area and reducing solder-joint failure risk.
- Balanced accuracy & stability: ±1% tolerance with ±100 ppm/℃ TCR keeps resistance drift low across the full -55℃~+155℃ range.
- Pulse & environment robustness: triple-layer electrodes (Ni barrier + Sn + glass glaze), laser-trimmed; AEC-Q200 qualified, sulfur- and humidity-resistant.
- Mature process & consistency: stable batch-to-batch performance, long-term drift below 0.5%.
- Full compliance: RoHS/REACH, lead-free and halogen-free for export markets.
Founded in 1988 and headquartered in Kaohsiung, Taiwan (listed on the Taiwan Stock Exchange, 6834.TW), Ever Ohms is the first manufacturer in Taiwan to mass-produce chip resistors and one of the few globally with in-house R&D and production across thick-film, thin-film and metal-plate (alloy) resistor technologies.
- Certifications: ISO 9001, IATF 16949, ISO 14001; AEC-Q200 self-qualified; lead-free since 2005 (RoHS & REACH compliant).
- Complete portfolio: thick-film (CR/CRH/CUH/HR), thin-film precision (TR), alloy current sensing, anti-sulfuration, automotive and resistor networks — from 0201 to 2512+, 0.05 W~7 W, 0.3 mΩ~10 MΩ.
- Global supply: manufacturing sites in Kaohsiung, Kunshan, Yuanling (Hunan) and Malaysia; in the supply chains of BYD, Huawei, *, etc..
- Patents & innovation: anti-sulfuration, double-sided printing and chip thermistor patents continuously strengthen reliability in harsh environments.
For samples, volume orders, datasheets or quality reports of the CRH2512F47R0E04Z (2512 47R 2W) Ever Ohms resistor, please contact the following authorized channels:
- Shenzhen Shunhai Technology Co., Ltd. — Authorized Tier-1 distributor of Ever Ohms, stocking the full CRH series. Provides original datasheets, factory inspection reports, supports both volume orders and small-batch sampling, with professional FAE guidance on derating and PCB thermal layout.
- Huanian Mall — Online component platform listing the full Ever Ohms catalog with parametric datasheets; supports both small-batch sampling and volume centralized procurement online, suitable for prototyping and mass production alike.
