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High-performance LRMAP3920 precision resistor replaces VISHAY WSL3921 with a 20% lower cost
Precision resistors are indispensable important components in circuit design. With the rapid development of the electronics industry, there are more and more precision resistor applications. However, due to limited production capacity, Vishay, a large company, has difficulties in supplying precision resistors from multiple The customer knows that the basic delivery period has reached 50 weeks, and some products are even longer. In response to this situation, I recommend TT Electronics' high-performance precision resistor LRMAP3920 series to cope with this situation. It is recommended to replace VISHAY's WSL3921 series with LRMAP3920 series.
First look at the package size, 3920 and 3921 are basically the same, the pin can be replaced by pin to pin on the PCB, which is the most critical requirement for replacement resistors. The power of both is 3W at higher resistance, while the LRMAP3920 series has a power of 5W at low resistance, which is more suitable for testing high current. The temperature drift of the two is basically the same. The LRMAP3920 series can completely replace the WSL3921 series at -55°C-170°C, 0.2mΩ-3mΩ. Finally, the price of the LRMAP3920 series is 20% cheaper than the WSL3921 series.
At present, Chinamax has fully represented TT Electronics' products. In view of the phenomenon that the precision resistors are out of stock, the LRMAP3920 series is not out of stock, fast in supply and cheap, and is a good choice to replace the WSL3921 series.