AFS1842.5S4

Overview

The AFS1842.5S4 is a Surface Acoustic Wave (SAW) filter manufactured by Abracon LLC, designed for RF signal conditioning in cellular communication systems. It operates at a center frequency of 1.843 GHz with a bandwidth of 75 MHz and an insertion loss of 3 dB. The component utilizes a 6-SMD, No Lead surface mount package, ensuring compatibility with automated assembly processes. This device is specifically engineered to meet the stringent requirements of LTE Band 3 applications, providing reliable frequency selection and interference rejection for mobile phone receivers.

Feature Summary

• Utilizes Surface Acoustic Wave technology for efficient RF filtering
• Optimized for LTE Band 3 receiver applications
• Designed for compact surface mount integration

Applications

• Cellular phone RF front-end modules
• LTE Band 3 receiver circuits
• Mobile communication base stations

Procurement Notes

Verify compliance with RoHS II directives before procurement. Confirm that the 6-SMD no-lead package matches your PCB footprint design. Ensure the 1.843 GHz center frequency aligns with your specific LTE Band 3 implementation requirements. Cross-reference datasheet specifications against your system's insertion loss and bandwidth tolerances to guarantee performance integrity.

Selection Notes

Select this component when designing for LTE Band 3 reception where a 75 MHz bandwidth is required. The 3 dB insertion loss specification should be evaluated against your link budget constraints. Consider the 6-SMD package dimensions for board space optimization. Verify thermal management needs as SAW filters generally have low power handling capabilities compared to other filter types.

Part Context

Abracon Corporation specializes in frequency control and signal conditioning components. The AFS series represents their line of SAW filters tailored for wireless communications. This specific model targets the global LTE market, particularly regions utilizing Band 3 spectrum allocations. The product reflects Abracon's focus on miniaturized, high-performance RF solutions for modern mobile devices.

Replacement Considerations

TA1843B from TAI-SAW TECHNOLOGY CO., LTD. is a confirmed substitute offering identical 1842.5MHz center frequency and 75MHz bandwidth for LTE Band 3 Rx applications.