Reflow Solderable SMT Vibrator Motors  

1-1 The specifications apply to the coreless cylindrical permanent magnetic micro vibration motor

   DC model  Z4NC1A1591901.

1. Standard Condition

1-1 Standard Voltage                 1.3V DC
1-2 Voltage Range                     1.1~1.5V DC
1-3 Standard Load                    Counter weight R2.3x4L
1-4 Rotating Direction                C.W. from the direction of the Counter weight
1-5 Moving temp. range              -10˚C~+60˚C
1-6 Storage temp. range             -40˚C~+85˚C(temp. 20˚C, relative humidity 65% RH, pressure 1013hPa)
1-7 Motor position                     All direction

2. Measuring Condition

2-1 Motor position                     Horizontal
2-2 Current                              DC stabilized current
2-3 Temp/Humidity                    Principle measurement 5˚C~35˚C, relative humidity
                                             30%~90%. For abnormalities, 20˚C±2˚C, 65%±5%
2-4 Rotating direction                C.W. from the direction of the counter weight (CW)

3. Electrical Features

3-1 Standard loaded rotation      10000±2500 rpm(under Standard Voltage and load)
3-2 Standard loaded current       125 mA Max (under Standard Voltage and load)
3-3 Starting current                  145 mA Max (under Standard Voltage)
      (Locked current)                  (2/3R extreme resisting rate)
                                              Not in the position which the brushes contact the
                                              commutator at two points
3-4 Standard loaded Starting       Under loaded condition towards CW, rotor shall move in
      Voltage                              all positions at 1.1V
                                              (counter weight is turned 360° slowly )
3-5 Insulation resistance             Under 50VDC,1MΩ Min between motor terminal and case
3-6 Voltage Insulation                Under 50V AC, without irregularities in 1 min between motor terminal and case
3-7 Electrical noise                    Using ring varistor
3-8 Wiring resistance                  2/3 between poles 10.0Ω±2.0Ω
3-9 Mechanical noise                  50dB(A) max from 10cm
                                              Background noise:28dB(A) max

4. Mechanical Structure

4-1 Appearance                         External measurement which should be within the
                                              difference accordance, Should not show Scratches,
                                              damages or loosening of the grip
4-2 End play of shaft                  0.30mm or less
4-3 Weight                               Approximately 1.2g
4-4 Weight of counter weight      Approximately 0.6g

5. Environment specification

5-1 Vibration Test                     Under packaged condition and vibration range of
                                              1.5mm cycle, subjecting to continuous speed change
                                              of 2mm or more during 3mins or less.
                                              Should satisfy item 3 & 4 even in additional of 30 mins
                                              with vibration of 1200~3300times/min.
5-2 Shock Test                         Inserting motor into a 6 sides simulated box (appx 60g),
                                              drop from 1.2m high on a concrete & metal surfaces and
                                              satisfying item 3 & 4
                                              Drop times: two drops per plane for a total of 12 drops

5-3 Storage Test                       Temperature cycle (without presence of condensation on the motor)

                                                           After exposure for 24Hrs and satisfy item 3 and 4

5-4 Counter weight High Temperature Test
      No vividly remarkable corrosion at 60˚C 90% HR after 250Hrs

5-5 Pull Test
      Counter weight pull (Under normal temperature and humidity)
      Counter weight must withstand axial pull of 3 kgf to destruct.

6. Life Test
 

                          Input voltage:       1.3V DC
                          Counter weight:     R2.3×4L appx 0.6g
                          (C) High temperature exposure at 60˚C, 20% RH
                                (D) Standard verification
                                      (1) Variety rate of standard rotation is less than +30%/-20% from initial.
                                      (2) Variety rate of standard current is less than +20%/-30% form initial.

6-1 Temperature Shock Life Test
(B)To maintain (A) cycle for 140hrs in the process of temperature shock
(D)To satisfy the standard specification

6-2 High Temperature Exposure Life Test
(C)To maintain (A) cycle under high temperature for 48hrs
(D)To satisfy the standard specification

7-1 Technical requirements for reflow

      Solder joint peak temperature: 250˚C.

      Exceeding this temperature will result in shorting and dead spot failures.

      Excessive heat weakens the magnets and it is also possible that the coating.
      on the magnet wires melts causing a short in the motor.

      Liquid Line (220˚C) over time: 30 ~ 90 seconds

      Requests temperature: 165˚C ~ 217˚C <100 seconds

      Preheat temperature requirements (<160˚C): ≤ 2˚C/ sec

      Peak temperature rise requirements: 1˚C ~ 3˚C / sec

8. Packing Condition
     8-1 Smallest packing condition

8-2 Cardboard Packing Condition

8-3 Final Packing Condition

9. Others

    9-1 Whatever items which be not stated in this specification will be not guaranteed.

    9-2 Do not subject the motor under locked condition for long times.

    9-3 Output test date and Cpk will be attached (n-35) of follows:
           Loaded rotation                             rpm
           Loaded current                              mA
           Lock current (Starting Current)         mA
           Starting voltage V (without consideration of Cpk value)