PCB Piezotronics
PCB Piezotronics Industrial Charge Amplifier Series
Model 421B30:Differential charge amplifier for Dynamic pressure sensors to be used with PCB 176 sensors
Available models include 421B30, 421B31.
Model 421B30:Differential charge amplifier for Dynamic pressure sensors to be used with PCB 176 sensors
This series groups the official PCB Piezotronics variants listed below. Differences such as frequency, configuration, connector, range, or regional option are shown in the table.
Key Features
Model 421B30:Differential charge amplifier for Dynamic pressure sensors to be used with PCB 176 sensors
- Sensitivity: (±5%)20.6 mV/pC
- Output Voltage: ±5 Vpk
- Temperature Range: -22 to +185 °F (-30 to +85 °C)
- Housing Material: Aluminum
Model & Varian
| Model | Official Variant Description | Sensitivity (±5 %) (Voltage Output) | Sensitivity (±5 %) (Current Output) | Input Range | Low Frequency Response (-3 dB) | High Frequency Response (-1 dB) | Non-Linearity | Temperature Range (Operating) | Temperature Response (Sensitivity Deviation) |
|---|---|---|---|---|---|---|---|---|---|
| 421B30 | 421B30 Industrial Charge Amplifier | 20.6 mV/pC / [4] [6] | 20.6 µA/pC / [4] [6] | ±242 pC | 10 Hz / [2] [5] | 5 kHz / [1] [3] [5] | ≤1.0 % FS | -22 to +185 °F / -30 to +85 °C | <2.5 % |
| 421B31 | 421B31 Industrial Charge Amplifier | 10 mV/pC / [4] [6] | 10 µA/pC / [4] [6] | ±500 pC | 10 Hz / [2] [5] | 1 kHz / [1] [3] [5] | ≤1.0 % FS | -22 to +185 °F / -30 to +85 °C | <2.5 % |
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Spesifikasi
| Sensitivity (±5 %) (Voltage Output) | 20.6 mV/pC / [4] [6] |
|---|---|
| Sensitivity (±5 %) (Current Output) | 20.6 µA/pC / [4] [6] |
| Input Range | ±242 pC |
| Low Frequency Response (-3 dB) | 10 Hz / [2] [5] |
| High Frequency Response (-1 dB) | 5 kHz / [1] [3] [5] |
| Non-Linearity | ≤1.0 % FS |
| Temperature Range (Operating) | -22 to +185 °F / -30 to +85 °C |
| Excitation Voltage | 22 to 28 VDC |
| Output Voltage | ±5 Vpk |
| Output Bias Voltage | 7.3 to 7.7 VDC |
| Output Bias Current | 11 to 13 mA |
| Output Current | ±5 mApK |
| Broadband Electrical Noise (1 to 10000 Hz) | 1040 µV / -60 dB / [7] [8] |
| Spectral Noise (1 Hz) | 38 µV/√Hz / -88 dB / [7] [8] |
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