3" (77 mm) Waterproof Intercom Speaker, 45 Ohm
Brand Name
MISCO OEM
Part #
77SA45M-1
In stock
$15.73
- MSRP$23.99
- Buy 1 - 9$15.73
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This all-weather speaker is ideal for applications both outside and inside. With its 45 ohm impedance, it is often used in entry intercoms and easily fits into small enclosures and tight spaces. Its neodymium magnet helps deliver high levels of clear communication. Its mylar cone design helps prevent moisture absorption, especially useful in high humidity.
- Neodymium High Energy Plus Magnet (HE+)
- 1 watt, Program Power
- Steel basket construction
- High tensile strength polyester film (PET) cone & dust cap
- Robust, copper-wound 0.6 inch voice coil
This speaker is not only ideal for intercom, it would be a great replacement speaker (standard hole placement) for radios, TVs, signaling, and alarm devices.
Download Product Specifications (PDF) »
Brand Name | MISCO OEM |
---|---|
Speaker Type | Voice |
Shape of Speaker | Square |
Size, Nominal (inch & mm) | 3" (77 mm) |
Environment | Outdoor / Indoor |
Application | Commercial, Indoor, Medical, Outdoor , Signal / Alarm Systems, Voice Communications |
RoHS Compliant | Yes |
Rated Impedance (Ω) | 45 |
Rated Power IEC268-5 (W) | 1 Watt |
Program Power (W) | 2 |
Sensitivity (dB SPL) ¹ | 86 |
Frequency Range (Hz) | 250 - 12,000 |
DC Resistance (Re) (Ω) | 42.0 |
Resonant Frequency (Fs) (Hz) | 300 |
Nominal Impedance (Z) (Ω) | 45 |
Voice Coil Inductance (Le) (mH) | 0 |
Mechanical Q Factor (Qms) | 14.1 |
Electrical Q Factor (Qes) | 13.4 |
Total Q Factor (Qts) | 6.86 |
Basket Type | Zinc Plated Stamped Steel |
Terminal Size (mm) | 5.2 x 0.5 (0.205" x 0.02") |
Voice Coil Diameter (mm) | 15.2 (0.6") |
Voice Coil Wire Material | Copper |
Voice Coil Former Material | Engineered paper |
Magnet Material | Neodymium |
Magnet Weight (g) | 10 (0.40 ounces) |
Cone Body Material | Polyester (PET) |
Cone Surround Material | Polyester (PET) |
Spider Material | Cloth |
Dust Cap Material | Polyester (PET) |
Net Weight (kg) | 0.050 |
Technical Notes | ¹ Sensitivity is measured with 2.83 volt input, measured on-axis at 1 meter distance |