The EWA-5128-120 is a balanced armature receiver with sound tube, designed for hearing aids and in-ear monitors where space is limited but sound quality matters. Each unit is manufactured with tight process control and fully tested before shipment.
We support custom frequency response tuning, impedance options, tube and cable variants, and tailored packaging. Send us your target specifications for a quotation — samples are available for evaluation.
| Type | Balanced armature receiver |
|---|---|
| Variant | With sound tube |
| Series | EWA |
| Damping | No damping |
| Weight | 0.15 g typical |
| Storage temperature | -40℃ to 70℃ |
|---|---|
| Operating temperature | 0℃ to 70℃ |
| Nominal drive | Constant current (CI), 0.177 mA |
| DCR @ 20°C | 125 Ω ±10% |
| Impedance @ 500 Hz | 175 Ω ±15% |
| Impedance @ 1 kHz | 260 Ω ±15% |
| Frequency (Hz) | Min (dB) | Nominal (dB) | Max (dB) |
|---|---|---|---|
| 200 | -1 | +2 | +5.0 |
| 500 | -2.4 | +0.6 | +3.6 |
| 1000 | -3 | 100 | +3.0 |
| 2900-3500 | +7.6 | +10.6 | +13.6 |
| 7000-9000 | -16 | --- | --- |
Sensitivity in dB re 20 µPa, measured on an IEC 60318-4 (IEC-711) coupler at 23℃, 50% RH, per the official datasheet.
Standard models support small-batch pilot runs. Exact MOQ and lead times depend on the model, quantity and packaging, and are confirmed at inquiry.
Yes. OEM / ODM tuning is available — tell us your target response and we will confirm the right model and a sample plan.
Every model has a measured datasheet (PDF + XLSX) in the Download Center, free of charge.
From sample to mass production
Tell us your target specs and application — we will confirm the right model, sample quantity and lead time.
Low-MOQ pilots · Clear lead times · FOB Tianjin · Free measured datasheets
