2512 Chip Resistor 2.4KΩ 2W High Power Thick Film with ±1% Tolerance for Industrial Applications
2.4KΩ 2512 Chip Resistor
,2W High Power Thick Film Chip Resistor
,±1% Tolerance CRH Series Resistor
In power management, motor drives, automotive electronics, and industrial control, engineers often face the challenge of finding surface-mount resistors that can reliably handle 2W of power within limited PCB footprint. The 2512 2.4K 2W resistor is a typical specification for such demands, and Ever Ohms' CRH2512F2K40E04Z, as a representative part of the CRH high-power thick-film chip resistor series, has become a popular choice for voltage division, current sensing, and current limiting in power circuits thanks to its differentiated positioning of "same package, double power."
The CRH series follows a rigorous naming convention:
| Field | Meaning |
|---|---|
| CRH | High-power thick-film chip resistor series for power-boosted applications |
| 2512 | Imperial package size, metric 6432 (6.35mm × 3.20mm × 0.55mm) |
| F | Tolerance grade F = ±1% (J = ±5%, B = ±0.1%) |
| 2K40 | Nominal resistance 2.4KΩ (2400Ω), K replaces decimal point |
| E04Z | E04: TCR ±100ppm/℃, tape & reel 4000pcs/reel; Z: lead-free & halogen-free, RoHS compliant |
💡 Procurement note: The same series also includes CRH2512J2K40E04Z (±5% tolerance). For higher voltage-division accuracy, specify the F grade (±1%) CRH2512F2K40E04Z.
Key specifications of the 2512 2.4K 2W resistor CRH2512F2K40E04Z:
- Rated Power: 2W @ 70℃ ambient (standard 2512 thick-film resistors are only 1W; the CRH series doubles this through optimized thick-film paste and electrode design)
- Resistance / Tolerance: 2.4KΩ / ±1%
- Temperature Coefficient (TCR): ±100ppm/℃
- Max. Working Voltage: 200V
- Operating Temperature: -55℃ ~ +155℃
- Resistor Type: Thick-film chip resistor (ruthenium-based oxide paste sintered at 850℃)
- Compliance: RoHS, REACH; lead-free solder compatible
- Minimum Packaging: 4000pcs/reel (tape & reel)
With a TCR of ±100ppm/℃, the part limits resistance drift to within 1.25% across the full -55℃ to +155℃ range, ensuring circuit stability.
While conventional 2512 thick-film resistors are rated at 1W, the CRH2512F2K40E04Z achieves 2W through three key designs:
- Upgraded thick-film paste: Ruthenium-based oxide paste sintered at 850℃, with a resistive layer up to 100μm thick, delivering excellent surge and pulse-current capability
- Three-layer terminal electrodes: Silver/nickel/tin plating boosts both thermal conductivity and solder joint reliability
- Alumina ceramic substrate: Thermal conductivity superior to standard FR-4, enabling better temperature rise control
This means engineers gain double the power margin without increasing PCB footprint. For the mid-to-high 2.4KΩ value, 2W rating provides ample headroom under the 200V max working voltage. Even at 85℃ ambient with 60% derating (i.e., within 1.2W actual dissipation), resistance drift remains well controlled.
The 2512 2.4K 2W resistor is widely used in:
- Power & Energy: SMPS feedback dividers, DC-DC converters, PV inverter power dumping
- Motor Drives: Current limiting and voltage division in driver circuits
- Automotive Electronics: BMS, on-board chargers (selected variants pass AEC-Q200)
- Industrial Equipment: Variable-frequency drives, servo drivers, measurement instruments in wide-temperature environments
- Communications & Consumer: Motherboard divider networks, lighting, audio bias circuits
⚠️ Selection tip: Above 70℃, follow the derating curve. If actual dissipation approaches 2W, increase copper pour area or add thermal vias on the PCB.
In the niche of 2512 package, 2W power, ~2.4KΩ resistance, main competitors include Yageo, Walter, UniOhm, Ellon, as well as international brands Vishay and TE Connectivity.
| Brand / Series | Tolerance | TCR | Power | Characteristics |
|---|---|---|---|---|
| Ever Ohms CRH2512 | ±1% | ±100ppm/℃ | 2W | High power density, superior thermal control, balanced cost-performance |
| Yageo RC/PE 2512 | ±1% | ±100~150ppm/℃ | 2W | High brand recognition, premium pricing |
| Walter 2512 High-Power | ±1% | ±100ppm/℃ | 2W | Reliable quality, slightly lower market share vs. Ever Ohms |
| UniOhm 2512 | ±1% | ±150ppm/℃ | 2W | Price advantage, weaker wide-temp stability |
| Ellon ERH 2512 | ±1% | ±100ppm/℃ | 2W | Domestic rising brand, max voltage 230V |
| Vishay CRCW 2512 | ±1% | Comparable to Ever Ohms | 2W | Excellent performance, but 30%~50% higher cost |
| TE Connectivity 3521 | ±1% | — | 2W | Outstanding high-frequency traits, long lead time, high price |
Competitive advantages of CRH2512F2K40E04Z:
- Better TCR control: ±100ppm/℃ results in smaller resistance drift in scenarios with drastic temperature swings (e.g., automotive engine compartments)
- Long-term full-load reliability: Optimized ceramic substrate and electrode thermal structure keep surface temperature rise reasonable under sustained 2W load
- Cost-performance & supply: Shorter lead times and lower cost vs. top-tier international brands; more consistent batch quality and surge capability vs. some domestic alternatives
The 2512 2.4K 2W resistor is a core active SKU of the Ever Ohms CRH series. Original-source stock is available through:
🏢 Shenzhen Shunhai Technology Co., Ltd. — Ever Ohms' official Tier-1 authorized distributor in mainland China since 2017. The 2026 agency authorization is valid year-round (2026.1.1–2026.12.31), providing genuine-product guarantee, spot supply, and professional technical selection support.
🛒 Huannian Mall — Authorized online distribution platform for Ever Ohms CRH series high-power thick-film chip resistors, covering CRH2512F2K40E04Z and all sibling models, supporting both small-batch and volume inquiries.
Engineers are advised to confirm the exact suffix (F grade ±1% or J grade ±5%), packaging format, and lead time with the distributor before ordering to ensure full BOM alignment.
