RTI Tech
MODEL 2140 PERFORMANCE SPECIFICATION
New subminiature transducers for applications
demanding the ultimate in vibration immunity and ultra small size such as hearing aids
worn in the ear. This is the Zero G line which incorporates a novel diaphragm construction
which reduces interference caused by mechanical vibration. The wide frequency range
permits improved voice intelligibility and an internal preamp facilitates applications.
Supply voltage |
1.3 V (0.9-3V) |
| Current drain at 1.3 V |
25µA (10–50 µA) |
| Output impedance at 1.3 V |
3 kOhm (2–6 kOhm) |
Noise level («A» -weighted)
(l kHz equivalent SPL) |
26 dB (28 dB Max) |
Sensitivity to vibration
(1 kHz equivalent SPL) |
66 dB per g |
| Sensitivity
(dBV) |
| Frequency |
min |
nom |
max |
|
| 100 Hz |
|
-66 |
|
| 1000 Hz |
-62 |
- 59 |
-56 |
| » 5000 Hz |
|
- 54.5 |
|
|
Device conformity range of deviation from 1 kHz |
|
| 100 Hz |
-11 dB |
to |
-4 dB |
| 1000 Hz |
0 dB |
|
0 dB |
| » 5000 Hz |
+1.5 dB |
to |
+7.5 dB |
|
| Patented under US
4,764,690 and others pending |
|
 |
DIMENSIONS
IN MM (INCHES) |
|
