MA40S4R
Ultrasonic Sensor, Receiver, MA40 Series, 9.9 mm Diameter, 40 kHz, -63 dB, -40 °C to 85 °C
| Manufacturer | MURATA |
|---|---|
| Manufacturer Part No | MA40S4RCopy |
| Newark Part No. | 52R3631 |
| Product Range | MA40 Series |
| Your Part Number | |
| Technical Datasheet |
Product Information
| Manufacturer | MURATA |
|---|---|
| Manufacturer Part No | MA40S4RCopy |
| Newark Part No. | 52R3631 |
| Product Range | MA40 Series |
| Technical Datasheet | |
| Sensing Range Min | 200mm |
| Sensing Range Max | 4m |
| Beam Angle | 80° |
| Beam Angle | 80° |
| Switching Frequency | 40kHz |
| External Diameter | 9.9mm |
| Sensitivity (dB) | -63dB |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Product Range | MA40 Series |
| SVHC | Lead titanium zirconium oxide (04-Feb-2026) |
Product Overview
MA40S4R is an ultrasonic sensor for various detections. MA40S4R is used to receive ultrasonic waves. It consists of piezoelectric ceramics, metal plate, resonator and resin case. Resonator has like a funnel shape to transmit ultrasonic waves which is generated by vibration of resonator to the air efficiently (or to concentrate ultrasonic waves from the air on the center of resonance). Sound pressure level(S.P.L.) is the most important characteristic for ultrasonic transducers. For example, in measuring distance application, high S.P.L. transducer enables to detect the further distance. Suitable for object detection, measuring the distance and dynamic body detection applications.
- Open type structure (used for indoor applications)
- 40KHz center frequency
- Compact size(10.0mm dia), high sensitivity and sound pressure
- Sensitivity of -63dB typ. (0dB=10V/Pa)
- 80° (typ) directivity
- 2550pF capacitance with ±20% capacitance tolerance
Notes
Cannot be used in outdoor applications and cannot be used for automotive applications.
Technical Specifications
| Sensing Range Min | 200mm |
|---|---|
| Beam Angle | 80° |
| Switching Frequency | 40kHz |
| Sensitivity (dB) | -63dB |
| Operating Temperature Max | 85°C |
| SVHC | Lead titanium zirconium oxide (04-Feb-2026) |
| Sensing Range Max | 4m |
|---|---|
| Beam Angle | 80° |
| External Diameter | 9.9mm |
| Operating Temperature Min | -40°C |
| Product Range | MA40 Series |
Technical Docs (2)
Associated Products
1 Product Found
Legislation and Environmental
| US ECCN: | EAR99 |
|---|---|
| EU ECCN: | Unknown |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | Lead titanium zirconium oxide (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |