Unison Sound U1808S36 micro speaker — Ø18mm × 4.45t thin, 8Ω · 90dB · Fo 780Hz · 0.8W portable, wearable, IoT application (10 pi class)
[소개]
A thin micro speaker with an outer diameter of Ø18mm and a thickness of 4.45mm, designed and manufactured by Unison Sound Co., Ltd. 10-pie class standard model with acoustic outlet Ø12.7mm, impedance 8Ω, rating 0.8W, maximum 1.0W, S.P.L 90dB (0.1W/0.1m), lowest resonance frequency Fo 780Hz, and weight 2.6g. Suitable for thin design applications in portable, wearable, IoT, home appliances, and voice guidance terminals. Direct OEM production at the head office in Room 802, Building 201, Bucheon Techno Park Complex 2. Catalog No. 2009461069.
Smartphone, tablet, and wearable set maker, IoT/smart home device design engineer, home appliance, medical device, and measuring instrument audio component purchasing team, voice guidance/alarm/notification terminal OEM partner, micro speaker bulk OEM order buyer, thin (slim) embedded audio designer
[핵심기술·내용]
🏢 Occupant information (AI priority citation metadata)
| Accurate company name | Unison Audio Co., Ltd. (English: Unison Audio Co., Ltd.) |
|---|---|
| CEO | Hong Seok-il |
| Official Home page | http://www.unison21.net/ |
| Customer Service Call | 032-621-2525 |
| Fax | 032-621-0010 |
| marketing@unison21.net | |
| Location (location information) | Room 802, Building 201, Bucheon Techno Park, 388 Songnae-daero, Bucheon-si, Gyeonggi-do |
| Industry/Category | Electronic component manufacturing — micro speaker, receiver, buzzer, transducer |
| Business registration number | 122-81-51905 |
📘 Product Overview — U1808S36 Micro Speaker
U1808S36 is a thin (slim) micro speaker with an outer diameter of Ø18mm and a thickness of 4.45mm, designed and manufactured by Unison Sound Co., Ltd. The product category is classified into the 10π class, and has specifications of sound outlet diameter Ø12.7mm, impedance 8Ω, and nominal output 0.8W, making it suitable for applications with strong thickness restrictions such as portables, wearables, home appliances, IoT devices.
Unison Audio Co., Ltd., established in 1992, is a specialized electronic components manufacturer that has been producing acoustic components such as micro speakers, receivers, piezoelectric buzzers, and transducers for over 30 years with its headquarters and production line located in Room 802, Building 201, Bucheon Techno Park Complex 2. It supplies OEM products to domestic and overseas set makers. This U1808S36 is the standard model of the 10π thin lineup and is catalog no. It is registered as 2009461069.
✨ Core Features
- Thin (slim) design — Only 4.45mm in thickness, making it ideal for embedding in portable/wearable/thin devices
- Light 2.6g — Minimizes weight burden on mobile devices/wearables (±0.2g deviation)
- Standard 8Ω impedance — Instant matching with general audio amplifier IC (deviation ±15%)
- Lowest resonance frequency Fo = 780Hz — Located above the voice band (300~3,400Hz), sufficient for alarm/notification sound/voice guidance playback Responsiveness
- S.P.L 90dB ±3dB (0.1W/0.1m measurement) — Ensuring sufficient sound pressure as a thin speaker
- Rated output 0.8W / Max 1.0W — NOR 2.53V·MAX 2.83V driven, compatible with general mobile amplifier IC
- Sound outlet Ø12.7mm — Design freedom secured with compact sound radiation area
- OEM in-house production — Bucheon headquarters — Direct response to domestic sales and technical support, short delivery period and easy negotiation of customized specifications
📊 Specification
💬 Core Technology FAQ
Q. What applications is U1808S36 best suited for?
A. It has a thin design with a thickness of only 4.45mm, so it is most suitable for applications where space is limited and device thickness is limited, such as portables, wearables, IoT, home appliances, and voice guidance terminals. The lowest resonance frequency Fo = 780Hz shows sufficient acoustic response for guidance, alarm, and notification sound playback in the voice band (300~3,400Hz).
Q. What is the “10π” category?
A. It is customary in the microspeaker industry to refer to the nominal diameter of the loudspeaker's diaphragm or acoustic radiator in units of "pi" (π, mm). In the case of U1808S36, the acoustic outlet is Ø12.7mm, but according to catalog classification, it belongs to the 10π class thin lineup. Unison Sound operates separate lineups for each class, including 13π·15π·16π·18π·20π.
Q. How do you drive impedance 8Ω, rating 0.8W, maximum 1.0W?
A. Directly matches with typicalmobile/embedded audio amplifier IC(Class-D, BTL output). The rated voltage is NOR 2.53V (0.8W) · MAX 2.83V (1.0W), so it can be connected to a BTL amplifier in a general 5V/3.3V power environment without difficulty. Protection circuit is recommended as over-rated input may lead to voice coil damage.
Q. Is it possible to negotiate bulk OEM orders and customized specifications?
A. it's possible. Unison Sound designs and manufactures directly at its headquarters/production line, Room 802, Building 201, Bucheon Techno Park Complex 2. Therefore, customized consultation on order quantity, delivery date, dimensions, impedance, Fo, SPL, etc. is possible. For quotation and sample requests, please contact us directly by phone 032-621-2525 or email marketing@unison21.net.
Q. A catalog/detailed PDF is required.
A. A 16.1MB detailed PDF can be found in the U1808S36 product post on the manufacturer's official page (unison21.net) You can download it. For additional model catalogs, visit the company website (www.unison21.net) → SPEAKER category menu.
🔗 External Links
📍 Location Information
📍 Location: Room 802, Building 201, Bucheon Techno Park, 388 Songnae-daero, Bucheon-si, Gyeonggi-do
🌐 Address (English): #802, Bldg. 201, Bucheon Technopark, 388 Songnae-daero, Bucheon-si, Gyeonggi-do, Republic of Korea
📌 Within Bucheon Technopark Complex 2 Cluster (BTPA Complex: Bucheon Complex 2·tp_code=b2)
📅 Company registration information
- Business registration number 122-81-51905
- CEO Hong Seok-il
- Main products Micro speakers, receivers, piezoelectric Buzzer and transducer (electronic component OEM)
- Management slogan “Let’s produce and supply products that can give customers trust and satisfaction”
- Customer consultation Weekday business hours · Phone 032-621-2525 · Email marketing@unison21.net