Detailed Explanation of CRH2512J2K40E04Z Resistance Parameters (2512 2.4K 2W)

CRH2512J2K40E04Z is a high-power thick film surface mount resistor from Taiwan's EVER OHMS CRH series. Its core specifications include 2512 package, 2.4K Ω resistance, 2W rated power, and ± 5% accuracy. It is suitable for medium to high-power circuit scenarios such as industrial power supplies, automotive electronics, and communication equipment, and has the advantages of miniaturization, high stability, and high power density.

Detailed Explanation of CRH2512J2K40E04Z Resistance Parameters (2512 2.4K 2W)
CRH2512J2K40E04Z is a high-power thick film surface mount resistor from Taiwan's EVER OHMS CRH series. Its core specifications include 2512 package, 2.4K Ω resistance, 2W rated power, and ± 5% accuracy. It is suitable for medium to high-power circuit scenarios such as industrial power supplies, automotive electronics, and communication equipment, and has the advantages of miniaturization, high stability, and high power density.
1、 Complete model analysis
The model code of CRH2512J2K40E04Z directly indicates the core parameters, and the disassembly is as follows:
CRH: High power thick film resistor series code of Tian'er Technology, using thick film technology and ceramic substrate, with excellent heat dissipation performance and strong power carrying capacity.
2512: British package size (0.25 inches x 0.12 inches), metric 6.35mm x 3.2mm x 0.55mm, standard surface mount design, compatible with automated SMT mounting process.
J: Resistance accuracy level, representing * * ± 5% * *, meets the requirements of conventional circuits such as industrial grade voltage divider, current limiting, and load.
2K40: nominal resistance value of 2.4K Ω (2400 Ω), covering commonly used resistance values in power management, signal conditioning, circuit protection, and other scenarios.
E04: Temperature coefficient and packaging code, Temperature coefficient (TCR) ± 100ppm/℃, packaged in 4000PCS/roll, suitable for mass production.
Z: Compliant with RoHS environmental standards, lead-free design, and compatible with modern electronic manufacturing environmental requirements.
2、 Core electrical parameters (2512 2.4K 2W)
1. Power and temperature characteristics
Rated power: 2W (at an ambient temperature of 70 ℃), with only 1W for ordinary surface mount resistors of the same size. The power density doubles, and it can stably carry medium to high power loads.
Working temperature range: -55 ℃~+155 ℃, wide temperature range suitable for harsh industrial and vehicle environments.
Temperature coefficient (TCR): ± 100ppm/℃, which means that for every 1 ℃ change in temperature, the resistance drift is ≤ 0.01%, and the resistance stability is excellent over a wide temperature range.
Short term overload capacity: 2.5 times the rated power (5W), capable of withstanding the surge current impact during circuit startup.
2. Resistance and accuracy
Nominal resistance: 2.4K Ω (2400 Ω).
Accuracy level: ± 5% (J level), actual resistance deviation ≤ ± 120 Ω, meeting the accuracy requirements of most industrial circuits.
Resistance stability: Long term working resistance drift ≤ 0.5%, excellent aging performance.
3. Voltage and insulation performance
Rated working voltage: 200V, suitable for medium and low voltage circuits.
Maximum overload voltage: 400V, capable of withstanding instantaneous high voltage impact.
Insulation resistance: ≥ 10G Ω, minimal leakage current, reducing the risk of circuit short circuit.
4. Mechanical and welding characteristics
Package size: 6.35mm × 3.2mm × 0.55mm, standard 2512 package, compatible with mainstream SMT mounting equipment.
Terminal electrode structure: silver/nickel/tin three-layer structure, with strong welding reliability and good oxidation resistance.
Welding heat resistance: 260 ℃/10 seconds, suitable for reflow soldering and wave soldering processes.
3、 Advantages in craftsmanship and materials
CRH2512J2K40E04Z is manufactured using thick film technology, with an alumina ceramic substrate as the carrier. Ruthenium based resistor paste is attached to the substrate through screen printing, and precise resistance values are formed through high-temperature sintering and laser resistance adjustment.
High power density: The 2512 package achieves 2W power, balancing miniaturization and high power.
Excellent heat dissipation performance: Ceramic substrates have good thermal conductivity, quickly dissipate heat, and reduce temperature rise.
Strong reliability: high temperature resistance, moisture resistance, vibration resistance, suitable for harsh working conditions.
4、 Typical application scenarios
Industrial power supply: power module, voltage regulator circuit, current limiting protection.
Automotive electronics: in car power supply, motor control, battery management.
Communication equipment: base station, router, signal conditioning circuit.
Consumer electronics: high-power LED drivers, chargers, adapters.
5、 Procurement and Supply Recommendations
1. Shenzhen Shunhai Technology Co., Ltd
As an authorized agent of Tian'er Technology, we specialize in supplying CRH series high-power resistors. CRH2512J2K40E04Z has sufficient stock and stable quality, providing technical support, bulk customization, and fast delivery services, and is suitable for bulk procurement in industrial, automotive, communication, and other fields.
Shenzhen Shunhai Technology Co., Ltd
2. Hua Nian Mall
The one-stop procurement platform for electronic components, CRH2512J2K40E04Z, has complete specifications and transparent prices. It supports small batch trial orders and large batch procurement, providing genuine product guarantee, fast logistics, and after-sales technical support, suitable for small and medium-sized, multi model procurement needs.
Hua Nian Mall
6、 Key selection points
Power matching: The actual working power is ≤ 70% of the rated power (≤ 1.4W) to avoid overheating and damage.
Temperature adaptation: When the ambient temperature exceeds 70 ℃, reduce the power according to the derating curve.
Accuracy requirements: Conventional circuits can choose ± 5% (J-level), while precision circuits can choose ± 1% (F-level).
Environmental requirements: When RoHS compliance is required, priority should be given to models with the Z suffix.
CRH2512J2K40E04Z has become the preferred resistor for medium to high power circuits due to its * * 2512 package, 2.4K Ω, 2W, ± 5% * * balance performance. If you need procurement or technical consultation, you can contact Shenzhen Shunhai Technology Co., Ltd. and Huanian Mall to obtain genuine products and professional services.