Ever Ohms Metal Film Resistors TRL Series Advantageous Supply

Advantage supply and technical analysis of Tian'er metal film resistor TRL series
1、 Core advantages of TRL series
1. Technical parameters and performance
High precision and low-temperature drift
Accuracy: Usually 1%, some models can reach up to 0.5%.
Temperature coefficient (TCR): as low as ± 50ppm/℃, ensuring stable resistance within a wide temperature range of -55 ℃~155 ℃, suitable for precision circuits and current detection scenarios.
Long term stability: using metal film technology, resistance fluctuation<0.5%, improving current sampling accuracy (such as electric vehicle motor control error<0.3%).
Low resistance and high power
Resistance range: 0.33 Ω~10 Ω, covering low resistance requirements.
Power: 1W (1206 package)~2W (2512 package), supporting high-power applications such as power filtering and motor driving.
Surge resistance: The nickel chromium alloy film layer can withstand 20A/10 μ s pulse current (in accordance with IEC 61000-4-5 standard), protecting backend components from voltage surges.
Heat dissipation optimization
Thickening the copper layer of the electrode (50 μ m) and optimizing the thermal conductivity path of the ceramic substrate, with a temperature rise of ≤ 30 ℃ at 1W power and a 25% increase in heat dissipation efficiency, supporting high-density PCB layout.
Typical applications: In car charger (OBC), USB PD 3.1 fast charging adapter.
2. Application Fields
Consumer electronics: mobile fast charging, USB PD 3.1 adapter, precision instrument current sampling.
Industrial and automotive electronics: industrial frequency converters, photovoltaic MPPT controllers, surge suppression for on-board chargers (OBC).
In the field of new energy, devices such as inverters and battery management systems (BMS) require anti surge and low-temperature drift characteristics.
3. Cost and supply advantages
High cost-effectiveness: As a universal metal film resistor, the cost is lower than that of sulfide resistant (TSL series) or surge resistant (EAM series) models, making it suitable for cost sensitive projects such as consumer electronics.
Batch purchase discount: For large-scale purchases (such as starting from 5000 pieces), the unit price is as low as ¥ 0.19~0.24. Authorized agents (such as Shunhai Technology and Huanian Mall) provide support for small batch purchases (starting from 10 pieces) and fast shipping (within 30 minutes).
Environmental compliance: Compliant with RoHS directive, using halogen-free and lead-free materials, suitable for export products.
4. Certification and Reliability
Passed AEC-Q200 automotive certification: Some models (such as TSL series) are suitable for automotive electronics, while TRL series, although not certified by automotive regulations, still has high reliability and stability, suitable for general industrial environments.
Quality assurance: Authorized agents provide genuine product assurance, and the resistor body is marked with the "EVEROHMS" logo to eliminate the risk of refurbishment.
2、 Supply channels and procurement recommendations
1. Authorized agents
Shunhai Technology: The official first level agent of Tian'er Technology, providing a full range of resistors (TRL, TSL, EAM), supporting small batch procurement, technical consulting, and customized solutions (such as circuit optimization and parameter calculation).
Huanian Mall/Lichuang Mall: an online platform where real-time inventory can be queried and data manuals can be downloaded. It is suitable for quickly purchasing niche resistance values (such as 1.1 Ω) or verifying models.
Shenzhen Shiyi Electronics Co., Ltd.: Provides TRL series low resistance metal film resistors, emphasizing lead-free certification and long-term stability, suitable for precision current sensing.
2. Procurement precautions
Minimum Order Quantity (MOQ): The TRL series typically requires a minimum order quantity of 5000 pieces, but authorized agents may offer more flexible small batch options (such as a minimum order quantity of 10 pieces).
Delivery time: Some models (such as 1.1 Ω) may not be in stock and need to be prepared 4-10 months in advance. It is recommended to confirm inventory through agents.
Technical verification: Before procurement, it is necessary to verify the temperature coefficient (TCR), power derating curve, and sulfur resistance performance (if used in corrosive environments, TSL series should be selected).