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Product Detailed Parameters
- Description：868.35MHz SAW Res. +/-150KHz 4P
- Series：SIR
- Mfr：NextGen Components
- Package：Tape & Reel (TR)
- Type：SAW
- Frequency：868.35 MHz
- Frequency Stability：-
- Frequency Tolerance：±150kHz
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.197" L x 0.138" W (5.00mm x 3.50mm)
- Height：0.059" (1.50mm)
- Impedance：50 Ohms
- Capacitance：-
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Overview
The SIR868M350S044 is a Surface Acoustic Wave (SAW) resonator manufactured by NextGen Components. It operates at a center frequency of 868.35 MHz with a frequency tolerance of +/-150 kHz. The device features a maximum insertion loss of 2.0 dB and utilizes a 4-pad SMD package measuring 5.0 mm in length, 3.5 mm in width, and 1.5 mm in height.
Feature Summary
- Single-port SAW resonator design optimized for Sub-GHz wireless applications
- Compact L5.0*W3.5*H1.5mm surface-mount package suitable for automated assembly
- High frequency stability within specified industrial temperature ranges
Applications
- 868 MHz LoRa and LoRaWAN node transceivers
- Sub-GHz Sigfox communication modules
- Low-power wireless sensor network interfaces
- Industrial IoT gateway local oscillator circuits
Procurement Notes
Verify the specific datasheet version from NextGen Components to confirm exact electrical parameters and mechanical tolerances. Ensure that the 4-pad SMD footprint matches the target PCB layout dimensions precisely. Confirm compliance requirements such as RoHS III status directly with the manufacturer documentation before finalizing component selection for production.
Selection Notes
Select this component for designs requiring precise 868.35 MHz resonance with tight frequency tolerance. Consider the 2.0 dB maximum insertion loss when calculating link budget efficiency. Ensure the host circuit supports single-port operation and matches the required load capacitance for optimal frequency accuracy.
Part Context
This part belongs to the SIR series of SAW resonators from NextGen Components, designed for Sub-GHz ISM band applications. It complements other variants like the SIR868M350S045 which offers different frequency tolerances. The series targets cost-effective solutions for LPWAN protocols requiring stable oscillation.
Replacement Considerations
Direct substitutes include the SIR868M350S045, though it specifies a +/-200KHz tolerance rather than +/-150KHz. Verify if the looser tolerance meets system requirements. Other family members may differ in package size or insertion loss specifications.
