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304-103 :: Worlds Smallest 4mm Surface Mount Vibration Motor

Precision Microdrives is proud to launch its smallest vibration motor yet - the 304-103. This motor is also the worlds smallest 4mm SMT vibration motor with dimensions of just Ø 4mm diameter by 3.5mm tall. The ultra low profile of this motor is ideal for haptic feedback functions in tablet PCs and tablet phones.

304-103 :: Specifications

  • Smallest 4mm SMD Vibration Motor
  • Smallest 4mm SMD Vibration Motor

The 304-103 is a 3V DC surface mount reflow solderable vibration motor. It comes on tape and reel and is designed specifically to be used with a pick and place machine for high speed, high volume feedback solutions like the latest generation of tablet PCs. The motor body including SMD carriage is 4.4mm wide by 3.5mm high. This ultra-low profile is achieved by combining the more traditional C-shape magnetic circuit of larger vibration motors with miniature moulded neodymium magnets, and makes it ideal for hand-held haptic feedback applications.

Performance wise, the motor has a nominal speed of 14000 RPM (233 Hz) at 2.7V, and typically produces 0.5G (4.91 m/s²) of vibration amplitude. The motor vibration efficiency is typically 2.8 G/W, but a typical current draw of 65mA keeps the current low enough for battery powered applications.

Like other 4mm motors in our Pico Vibe range the typical audible noise level is less than 40dBA, and standard operation temperatures of -20°C  to +70°C

The 304-103 vibration motor is available from stock with no minimum order quantity.

304-103 :: Smallest SMD Vibration motors in 1+ quantities from stock

Pico Vibe™ :: Miniature vibration motors for tablet phones and PCs

  • Tablet PC / phone with vibration feedback
  • Tablet PC / phone with vibration feedback

Since the launch of Apple's iPad, the tablet form factor has become ubiquitous, and more recent models starting to contain our low-profile reflow SMT vibration motors like 304-103. These vibration motors are beginning to offer every more complicated vibration feedback mechanisms as software OS's like Google's Android start to contain hooks for haptic feedback functionality.

App designers are using haptic feedback for alerting, gaming and multi-sense interaction with users, whilst the OS itself uses the miniature vibration motors to make software buttons feel like real tactile buttons.

Vibration motors are also used frequently for vibration feedback, for example to indicate incoming phone calls, whose purpose is more to alert users of an event rather than replicating the feel of a tactile switches. 

Our engineering support team is comprised of experts in the field of applied haptic feedback, particularly for touch interfaces and handheld battery powered products. They are here to help you find the best vibration motor for your application.

Low-profile vibration motors are just part of a much wider range of 4mm to 7mm Pico Vibe™ vibration motors, which also come other form factors, such as PCB vibration motors and coin vibration motors.

Precision Microdrives :: Leading the industry on vibration technology

  • One of our bespoke vibration testing suites
  • One of our bespoke vibration testing suites

We help a lot of customers with prototyping and pre-production activities by holding the largest and widest range of stocked vibration motors in the world. All of these parts are available for same day dispatch and worldwide delivery. Our volume throughput comes however from a wide range of customers who are using our parts in production, scaling from 250 ~ 100,000 pcs per month.

Most production relationships start out as pre-production orders via our webstore. Our engineering application support team are always happy to lend a hand and give free, but nonetheless valuable advice about best-practice as the design progresses. However our experience and competence in the field really comes into its own when the application goes into production, and customers require a consistent supply of high quality and reliable motors. In our London lab, we have racks of bespoke made vibration testing suites which are used to verify the performance of newly manufactured motors, and perform longevity testing with conditions that match customer usage profiles.

Another highly valued service that we offer is our vibration motor customisation service. We are able to modify stock motors from a minimum quantity of 100 pcs, from changing the lead length to designing completely new motor configurations.

If you're looking for support in any of these areas, please email or phone us. We'll be very happy to help.

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