CMS-18138-25-SP Miniature Micro-Speaker by SAME SKY
The CMS-18138-25-SP is a high-quality miniature speaker designed for compact electronic applications. Manufactured by SAME SKY in China, this audio device features a small footprint with reliable performance, making it ideal for space-constrained environments.
Product Features
Micro-speaker with small footprints for versatile integration
Spring leads for easy mounting and electrical connection
Impedance: 8 Ohms at 2 kHz
Resonant frequency (Fo): approximately 480 Hz
Frequency response up to 20 kHz with ±10 dB SPL
Sound Pressure Level (SPL): up to 93.5 dB at 0.7 W, 0.1 m
Maximum input power: 0.7 W (IEC-60268-5 standard)
Dimensions: 18.0 x 13.0 x 2.5 mm
Magnet: Nd-Fe-B
Material: PPA cone with Mylar diaphragm
Operating temperature: -20°C to 60°C
RoHS compliant
Technical Specifications
Parameter
Conditions/Description
Min
Typ
Max
Units
Input Power (Max)
IEC-60268-5, filter 60s on/120s off, 10 cycles at room temp in 1 cc closed box
0.7
1.0
W
Impedance at 2.0 kHz, 1.0 V
6.8
8.0
9.2
Ω
Resonant Frequency (Fo)
at 1.0 V in 1 cc closed box
384
765
Hz
Frequency Response Output SPL
±10 dB Fo 20,000 Hz
Sound Pressure Level at 0.7 W, 0.1 m
In 1 cc closed box, at 2.0 kHz
87.5
90.5
93.5
dB
Distortion at 1.0 kHz, 0.7 W
10
%
Mechanical and Packaging Details
Dimensions: 18.0 x 13.0 x 2.5 mm
Weight: 1.6 g
Package Type: Tray (80 pcs per tray), Carton (2,000 pcs per carton)
Note: All specifications are measured under standard conditions (5~35°C, humidity 45~85%, pressure 86~106 kPa). For more detailed information, please refer to the datasheet or visit the product page.
{"id":10021026070845,"title":"CMS-18138-25-SP","handle":"cms-18138-25-sp","description":"\u003ch3\u003eCMS-18138-25-SP Miniature Micro-Speaker by SAME SKY\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCMS-18138-25-SP\u003c\/strong\u003e is a high-quality miniature speaker designed for compact electronic applications. Manufactured by \u003cstrong\u003eSAME SKY\u003c\/strong\u003e in China, this audio device features a small footprint with reliable performance, making it ideal for space-constrained environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMicro-speaker with small footprints for versatile integration\u003c\/li\u003e\n \u003cli\u003eSpring leads for easy mounting and electrical connection\u003c\/li\u003e\n \u003cli\u003eImpedance: 8 Ohms at 2 kHz\u003c\/li\u003e\n \u003cli\u003eResonant frequency (Fo): approximately 480 Hz\u003c\/li\u003e\n \u003cli\u003eFrequency response up to 20 kHz with ±10 dB SPL\u003c\/li\u003e\n \u003cli\u003eSound Pressure Level (SPL): up to 93.5 dB at 0.7 W, 0.1 m\u003c\/li\u003e\n \u003cli\u003eMaximum input power: 0.7 W (IEC-60268-5 standard)\u003c\/li\u003e\n \u003cli\u003eDimensions: 18.0 x 13.0 x 2.5 mm\u003c\/li\u003e\n \u003cli\u003eMagnet: Nd-Fe-B\u003c\/li\u003e\n \u003cli\u003eMaterial: PPA cone with Mylar diaphragm\u003c\/li\u003e\n \u003cli\u003eOperating temperature: -20°C to 60°C\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eConditions\/Description\u003c\/th\u003e\n \u003cth\u003eMin\u003c\/th\u003e\n \u003cth\u003eTyp\u003c\/th\u003e\n \u003cth\u003eMax\u003c\/th\u003e\n \u003cth\u003eUnits\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInput Power (Max)\u003c\/td\u003e\n \u003ctd\u003eIEC-60268-5, filter 60s on\/120s off, 10 cycles at room temp in 1 cc closed box\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e0.7\u003c\/td\u003e\n \u003ctd\u003e1.0\u003c\/td\u003e\n \u003ctd\u003eW\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eImpedance at 2.0 kHz, 1.0 V\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e6.8\u003c\/td\u003e\n \u003ctd\u003e8.0\u003c\/td\u003e\n \u003ctd\u003e9.2\u003c\/td\u003e\n \u003ctd\u003eΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eResonant Frequency (Fo)\u003c\/td\u003e\n \u003ctd\u003eat 1.0 V in 1 cc closed box\u003c\/td\u003e\n \u003ctd\u003e384\u003c\/td\u003e\n \u003ctd\u003e765\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003eHz\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eFrequency Response Output SPL\u003c\/td\u003e\n \u003ctd\u003e±10 dB Fo 20,000 Hz\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSound Pressure Level at 0.7 W, 0.1 m\u003c\/td\u003e\n \u003ctd\u003eIn 1 cc closed box, at 2.0 kHz\u003c\/td\u003e\n \u003ctd\u003e87.5\u003c\/td\u003e\n \u003ctd\u003e90.5\u003c\/td\u003e\n \u003ctd\u003e93.5\u003c\/td\u003e\n \u003ctd\u003edB\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDistortion at 1.0 kHz, 0.7 W\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e10\u003c\/td\u003e\n \u003ctd\u003e%\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMechanical and Packaging Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDimensions: 18.0 x 13.0 x 2.5 mm\u003c\/li\u003e\n \u003cli\u003eWeight: 1.6 g\u003c\/li\u003e\n \u003cli\u003ePackage Type: Tray (80 pcs per tray), Carton (2,000 pcs per carton)\u003c\/li\u003e\n \u003cli\u003eTray Size: 360 x 225 x 9 mm\u003c\/li\u003e\n \u003cli\u003eCarton Size: 375 x 240 x 260 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: CMS-18138-25-SP\u003c\/li\u003e\n \u003cli\u003eManufacturer: SAME SKY\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n \u003cli\u003eUOM: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cud\/cud-cms-18138-25-sp.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNote: All specifications are measured under standard conditions (5~35°C, humidity 45~85%, pressure 86~106 kPa). For more detailed information, please refer to the datasheet or visit the product page.\u003c\/p\u003e","published_at":"2025-08-12T10:21:08+05:30","created_at":"2025-08-12T10:21:08+05:30","vendor":"Waldom Electonics","type":"Audio Devices","tags":["480Hz","7W","Audio","IMPORT_CSV","SAME","Speakers","Transducers","WLDM"],"price":21066,"price_min":21066,"price_max":21066,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50611481084221,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"CMS-18138-25-SP","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"CMS-18138-25-SP","public_title":null,"options":["Default Title"],"price":21066,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"CMS-18138-25-SP","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/CMS-18138-25-SP_52255132_bc1d024d.jpg?v=1754974271"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/CMS-18138-25-SP_52255132_bc1d024d.jpg?v=1754974271","options":["Title"],"media":[{"alt":null,"id":45796709368125,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/CMS-18138-25-SP_52255132_bc1d024d.jpg?v=1754974271"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/CMS-18138-25-SP_52255132_bc1d024d.jpg?v=1754974271","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eCMS-18138-25-SP Miniature Micro-Speaker by SAME SKY\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCMS-18138-25-SP\u003c\/strong\u003e is a high-quality miniature speaker designed for compact electronic applications. Manufactured by \u003cstrong\u003eSAME SKY\u003c\/strong\u003e in China, this audio device features a small footprint with reliable performance, making it ideal for space-constrained environments.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eMicro-speaker with small footprints for versatile integration\u003c\/li\u003e\n \u003cli\u003eSpring leads for easy mounting and electrical connection\u003c\/li\u003e\n \u003cli\u003eImpedance: 8 Ohms at 2 kHz\u003c\/li\u003e\n \u003cli\u003eResonant frequency (Fo): approximately 480 Hz\u003c\/li\u003e\n \u003cli\u003eFrequency response up to 20 kHz with ±10 dB SPL\u003c\/li\u003e\n \u003cli\u003eSound Pressure Level (SPL): up to 93.5 dB at 0.7 W, 0.1 m\u003c\/li\u003e\n \u003cli\u003eMaximum input power: 0.7 W (IEC-60268-5 standard)\u003c\/li\u003e\n \u003cli\u003eDimensions: 18.0 x 13.0 x 2.5 mm\u003c\/li\u003e\n \u003cli\u003eMagnet: Nd-Fe-B\u003c\/li\u003e\n \u003cli\u003eMaterial: PPA cone with Mylar diaphragm\u003c\/li\u003e\n \u003cli\u003eOperating temperature: -20°C to 60°C\u003c\/li\u003e\n \u003cli\u003eRoHS compliant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eParameter\u003c\/th\u003e\n \u003cth\u003eConditions\/Description\u003c\/th\u003e\n \u003cth\u003eMin\u003c\/th\u003e\n \u003cth\u003eTyp\u003c\/th\u003e\n \u003cth\u003eMax\u003c\/th\u003e\n \u003cth\u003eUnits\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInput Power (Max)\u003c\/td\u003e\n \u003ctd\u003eIEC-60268-5, filter 60s on\/120s off, 10 cycles at room temp in 1 cc closed box\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e0.7\u003c\/td\u003e\n \u003ctd\u003e1.0\u003c\/td\u003e\n \u003ctd\u003eW\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eImpedance at 2.0 kHz, 1.0 V\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e6.8\u003c\/td\u003e\n \u003ctd\u003e8.0\u003c\/td\u003e\n \u003ctd\u003e9.2\u003c\/td\u003e\n \u003ctd\u003eΩ\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eResonant Frequency (Fo)\u003c\/td\u003e\n \u003ctd\u003eat 1.0 V in 1 cc closed box\u003c\/td\u003e\n \u003ctd\u003e384\u003c\/td\u003e\n \u003ctd\u003e765\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003eHz\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eFrequency Response Output SPL\u003c\/td\u003e\n \u003ctd\u003e±10 dB Fo 20,000 Hz\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eSound Pressure Level at 0.7 W, 0.1 m\u003c\/td\u003e\n \u003ctd\u003eIn 1 cc closed box, at 2.0 kHz\u003c\/td\u003e\n \u003ctd\u003e87.5\u003c\/td\u003e\n \u003ctd\u003e90.5\u003c\/td\u003e\n \u003ctd\u003e93.5\u003c\/td\u003e\n \u003ctd\u003edB\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eDistortion at 1.0 kHz, 0.7 W\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e\u003c\/td\u003e\n \u003ctd\u003e10\u003c\/td\u003e\n \u003ctd\u003e%\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eMechanical and Packaging Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eDimensions: 18.0 x 13.0 x 2.5 mm\u003c\/li\u003e\n \u003cli\u003eWeight: 1.6 g\u003c\/li\u003e\n \u003cli\u003ePackage Type: Tray (80 pcs per tray), Carton (2,000 pcs per carton)\u003c\/li\u003e\n \u003cli\u003eTray Size: 360 x 225 x 9 mm\u003c\/li\u003e\n \u003cli\u003eCarton Size: 375 x 240 x 260 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: CMS-18138-25-SP\u003c\/li\u003e\n \u003cli\u003eManufacturer: SAME SKY\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: CN\u003c\/li\u003e\n \u003cli\u003eUOM: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-cud\/cud-cms-18138-25-sp.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNote: All specifications are measured under standard conditions (5~35°C, humidity 45~85%, pressure 86~106 kPa). For more detailed information, please refer to the datasheet or visit the product page.\u003c\/p\u003e"}
