PCB-378C20
| basic data | |||
| Nominal diameter of microphone | 1/2 " | ||
| application | diffuse-field | ||
| Sensitivity | 50 mV / PA | [2] | |
| sensitivity (±1. 5 dB) | -26 dB in relation to 1 V / PA | [2] | |
| frequency range (± 1 dB) | 7 … 6,300 Hz | ||
| (±2 dB) frequency range | 3.75 … 16,000 Hz | ||
| lower limiting frequency | 1.0 … 3.0 Hz | ||
| Noise | < 20 dB in relation to 20 µPa | ||
| noise | < 16.5 dB(A) in relation to 20 µPa | ||
| Dynamic range | > 135 dB in relation to 20 µPa | ||
| TEDS Chip | integrated by default | [1] | |
| conditions of use | |||
| Temperature range (operation) | -40 … 176 ° F | -40 … 80 ° C | |
| Temperature coefficient of sensitivity | 0,005 dB/°F | 0.009 dB / ° C | [2] [3] |
| Influence of static pressure | -0.01 dB/kPa | [2] [3] | |
| Humidity coefficient of sensitivity | ±0, 001 dB/% RH | [2] | |
| Influence by axial vibration | 63 dB in relation to 20 µPa | [3] | |
| technical characteristics | |||
| polarization voltage | 0 V | [4] | |
| Supply | 20 … 30 V DC | ||
| constant power supply | 2 … 20 mA | ||
| Bias voltage | 10 … 14 V DC | ||
| maximum output range | V ±7 PK | ||
| Output impedance | < 50 Ω | ||
| physical properties | |||
| housing material | stainless steel alloy | ||
| Pressure | back | [5] | |
| electrical connection | BNC Jack | ||
| mounting thread (cap) | 0,5 - 60 UNS | ||
| size - diameter (with cap) | 0.52 in | 13.2 mm | |
| size - diameter | 0.50 in | 12.7 mm | |
| Size - height (with cap) | 3.62 in | 91.9 mm | |
| size - height (without protection cap) | 3.58 in | 90.9 mm | |
| Mass | 1.63 oz | 45.8 grams | [3] |
| indications | |||
| [1] | TEDS memory in accordance with IEEE PP1451. 4 | ||
| [2] | based on 250 Hz | ||
| [3] | typically | ||
| [4] | Prepolarized | ||
| [5] | pressurised by the preamplifier | ||
| [6] | details: see PCBs Declaration of conformance PS064 | ||
| included Accessories | |||
| ACS-42 | calibration of a microphone with pre-amplifier | -1 | |
| (TLD) TEDS memory in accordance with IEEE P1451. 4 | |||
| Accessories | |||
| ACS-63 | calibration microphone with pre-amplifier | -1 |
PCB-378C20
