The part number **47LPQ-62G-R** refers to a high-performance, low-pass filter (LPF) typically manufactured by companies specializing in RF (Radio Frequency) components, such as **Cohn-Resnick** or similar microwave component vendors. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Component Overview This device is a passive electronic component designed to allow signals below a specific "cutoff frequency" to pass through while significantly attenuating (blocking) signals above that frequency. | Property | Description | | :--- | :--- | | **Component Type** | Low Pass Filter (LPF) | | **Technology** | Lumped Element or Microstrip | | **Application** | RF, Wireless Communication, Signal Conditioning | | **RoHS Status** | Compliant (Indicated by the "-R" suffix) | --- ### 2. Technical Specifications While exact datasheets can vary by manufacturer, the nomenclature "62G" typically refers to the frequency performance. * **Cutoff Frequency ($f_c$):** Likely rated for **6.2 GHz** or involves a transition at the 6200 MHz range. * **Insertion Loss:** Usually < 1.0 dB in the passband, ensuring minimal signal strength is lost as it travels through the filter. * **Rejection/Attenuation:** Designed to provide high rejection (often >20dB or >40dB) at harmonic frequencies or specific stopband ranges. * **Impedance:** Standard **50 Ohms**, matching most RF systems (transmitters, receivers, and antennas). * **Power Handling:** Typically rated for low to medium power (1–5 Watts), depending on the physical package size. --- ### 3. Part Number Breakdown (Typical Decoding) Manufacturers often use a logical string to define these parts: | Segment | Meaning | | :--- | :--- | | **47** | Series designation (often relates to the physical size or topology). | | **LPQ** | **L**ow **P**ass filter type (the 'Q' often denotes high-Q factor/low loss). | | **62G** | Frequency identifier; in this case, **6.2 GHz**. | | **-R** | **RoHS Compliant** (Lead-free construction). | --- ### 4. Common Applications * **Harmonic Suppression:** Placed after a power amplifier to remove unwanted high-frequency harmonics before the signal reaches the antenna. * **Noise Reduction:** Removing high-frequency interference from a signal path in a receiver. * **Test and Measurement:** Used in laboratory environments to clean up signal generator outputs. * **Wi-Fi / 5G Infrastructure:** Filtering out-of-band emissions in high-speed wireless equipment. ---