Knowles SPH18R1LM4H-1
| Manufacturer | |
| MPN | SPH18R1LM4H-1 |
| LCSC Part # | C20627272 |
| Packaging | SMD |
| Customer # | |
| Key Attributes | Omnidirectional -37dB SMD Microphones RoHS |
| Datasheet | Knowles SPH18R1LM4H-1 |
| RoHS Compliance | 1 documents available |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Audio Products/Microphones | |
| Manufacturer | Knowles | |
| Packaging | SMD | |
| Voltage - Supply | 1.8V | |
| Width | 2.65mm | |
| Direction | Omnidirectional | |
| Current Consumption | 290uA;420uA;470uA | |
| Length | 3.5mm | |
| Sensitivity | -37dB | |
| Height | 1mm | |
| S/N Ratio | 65dB;68dB;68.5dB | |
| Operating Temperature | -40℃~+100℃ |
| Type | Description | |
|---|---|---|
| Category | Audio Products/Microphones | |
| Manufacturer | Knowles | |
| Packaging | SMD | |
| Voltage - Supply | 1.8V | |
| Width | 2.65mm | |
| Direction | Omnidirectional |
| Type | Description | |
|---|---|---|
| Current Consumption | 290uA;420uA;470uA | |
| Length | 3.5mm | |
| Sensitivity | -37dB | |
| Height | 1mm | |
| S/N Ratio | 65dB;68dB;68.5dB | |
| Operating Temperature | -40℃~+100℃ |
Introduction
The SPH18R1LM4H-1 is a miniature, high-performance, low-power bottom-port silicon digital microphone with single-bit PDM output. Utilizing Knowles' proven high-performance SiSonic MEMS technology, the SPH18R1LM4H-1 consists of an acoustic sensor, low-noise input buffer, and sigma-delta modulator. These devices are suited for applications requiring low power consumption, excellent wideband audio performance, and RF immunity, such as mobile phones, smartphones, sensors, and other portable electronic devices. In addition, the SPH18R1LM4H-1 offers multiple performance modes.
Applications
- Smartphones
- True Wireless Stereo (TWS) earphones
- Wearables/IoT
- Far-field recording/audio zoom
- Always-on applications
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 3.1532 | $ 3.15 |
| 10+ | $ 2.6584 | $ 26.58 |
| 30+ | $ 2.3476 | $ 70.43 |
| 100+ | $ 2.032 | $ 203.20 |
| 500+ | $ 1.8873 | $ 943.65 |
| 1,000+ | $ 1.8265 | $ 1826.50 |
Standard Packaging1000/Full Reel | ||
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Audio Products/Microphones | |
| Manufacturer | Knowles | |
| Packaging | SMD | |
| Voltage - Supply | 1.8V | |
| Width | 2.65mm | |
| Direction | Omnidirectional | |
| Current Consumption | 290uA;420uA;470uA | |
| Length | 3.5mm | |
| Sensitivity | -37dB | |
| Height | 1mm | |
| S/N Ratio | 65dB;68dB;68.5dB | |
| Operating Temperature | -40℃~+100℃ |
| Type | Description | |
|---|---|---|
| Category | Audio Products/Microphones | |
| Manufacturer | Knowles | |
| Packaging | SMD | |
| Voltage - Supply | 1.8V | |
| Width | 2.65mm | |
| Direction | Omnidirectional |
| Type | Description | |
|---|---|---|
| Current Consumption | 290uA;420uA;470uA | |
| Length | 3.5mm | |
| Sensitivity | -37dB | |
| Height | 1mm | |
| S/N Ratio | 65dB;68dB;68.5dB | |
| Operating Temperature | -40℃~+100℃ |
Introduction
The SPH18R1LM4H-1 is a miniature, high-performance, low-power bottom-port silicon digital microphone with single-bit PDM output. Utilizing Knowles' proven high-performance SiSonic MEMS technology, the SPH18R1LM4H-1 consists of an acoustic sensor, low-noise input buffer, and sigma-delta modulator. These devices are suited for applications requiring low power consumption, excellent wideband audio performance, and RF immunity, such as mobile phones, smartphones, sensors, and other portable electronic devices. In addition, the SPH18R1LM4H-1 offers multiple performance modes.
Applications
- Smartphones
- True Wireless Stereo (TWS) earphones
- Wearables/IoT
- Far-field recording/audio zoom
- Always-on applications
C20627272 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS Compliant |
| ECCN | EAR99 |
| CNHTS | 8518100000 |
| USHTS | 8518104000 |
| TARIC | 8518100010 |
| CAHTS | 8518100000 |
| BRHTS | 85181010 |
| INHTS | 85181000 |
| MXHTS | 8518.10.01 |
| Type | Details |
|---|---|
| RoHS | ROHS Compliant |
| ECCN | EAR99 |
| CNHTS | 8518100000 |
| USHTS | 8518104000 |
| TARIC | 8518100010 |
| Type | Details |
|---|---|
| CAHTS | 8518100000 |
| BRHTS | 85181010 |
| INHTS | 85181000 |
| MXHTS | 8518.10.01 |



