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     MOTORIZED CONTROL FADER

MF-915 Series
Conductive plastic resistor element used (Low slide noise).
Best touch.
Horizontal style control-bar design (Protection against dust).
Durable system which adopted the shaft of the high quality.
4 types of output laws.
With touch sense track.
Last update: 2025.05.21. [Specifications] [Note] [Dimensions] [Model-number] [Update list] EU-RoHS


Information
The resistive element used has been changed to improve stability compared to the MF914 series.

We can also manufacture with wire harnesses. Please contact us with wire harness specifications.


Electrical specifications
(initial value)		 MF-915 Series
Products MF-915-B*-* MF-915-LB*-* MF-915-2B*-* MF-915-A*-* MF-915-AP*-*
Number of circuits 1 circuit 1 circuit 2 circuits 2 circuits 2 circuits
Type of output laws
    Law1: Servo
    Law2: 2nd law
 		 Law1:
    Linear taper
Law2:
     -		 Law1:
    Long linear taper
Law2:
     -		 Law1:
    Linear taper
Law2:
    Linear taper		 Law1:
    Linear taper
Law2:
    Audio taper		 Law1:
    Linear taper
Law2:
    AP taper
Circuit method (Output law1) Potentiometer circuit
Circuit method (Output law2) - Potentiometer circuit Ladder circuit
Total resistance (1-C), (1-3) 10kohm,   5kohm
Total resistance tolerance ±20%
Absolute linearity (Linear taper) ±5% (The travel is divided into 10 sections and 11 positions are measured.)
Residual voltage (1-2), (2-3)
(Linear taper)		 10mV or less
 
Residual resistance (1-2), (2-3)
(Reference values)		 30ohm or less
 		 200ohm or less
 		 30ohm or less
 
Touch sense track contact resistance 20ohm or less (Between terminal 4 and Control-bar.)
Attenuation accuracy [Load: high]
(Audio taper / AP taper)		 - 0 - 20dB: ±1.0dB (10dB: ±0.5dB)
   - 40dB: ±2.0dB
Insertion loss
(Audio taper / AP taper)		 - 0.5dB or less
 
Cut off [15kHz]
(Audio taper / AP taper)		 - 100dB Min.
 
Voltage proof 1 Min. at AC500V
Insulation resistance 50Mohm or more at DC500V
Max rating 0.2W (Linear taper),  0.1W (Other taper)
Maximum input voltage DC30V or less
Sliding noise level 47mV or less (by JIS C 6443)
Sliding life 100,000 Cycles Min. (18cycles/min, Sliding noise level: Less than 100mV)
Drive motor data


 		 DC12V Coreless motor : Input voltage: DC12V, Stall current: 0.55A or less
                [12CL-3035 (Custom-made for TKD.) : Orbray Co., Ltd.]
DC8V Iron cored motor : Input voltage: DC5V - 11.5V (Nominal DC8V), Stall current: 0.5A or less
                [FF-050SB-09250 : MABUCHI MOTOR Co., Ltd.]

Mechanical specifications
(initial value)		 MF-915 Series
Travel (Stroke) length 100mm ±0.5mm
Operating force 0.1 to 0.3N
Strength Nut-Attached 100Ncm
Attached parts M3 screw (Length: Panel thickness + 3mm)
Stopper strength 40N
Push-pull strength 40N
Alignment to the center ±0.5mm (State not to pressure control-bar, Measurement position: Mounting surface)

General specifications MF-915 Series
Temperature range -10 to +50 degrees C (Operating), -15 to +60 degrees C (Storage)
Relative humidity 80%RH (No condensation)


Please check before use.
* Solder heat resistance: 350deg C max, 5sec max, 2 times. (Manual soldering only)
* Please take care during soldering that the smoke from the solder does not flow inside a fader.
* If the flux sticks to a resistor board, it may cause a trouble with the fader.
* Move to one end in Control-bar on the occasion of knob wearing, and can break into it slowly.
* It is highly recommended that the fault tolerant system is to be set up in the big situation like the live broadcast.
* This product is designed on the assumption of the horizontal use.
* The enough operational testing is highly recommended for the slant or the vertical use to prevent the unexpected operation.
* Replacing it from other brands tests it enough, and please consider.
* Caution in Ladder circuit(Audio and AP taper) use.

   Important points in using audio curve and log curve of TKD faders >>
The load resistance (R) on the fader output side should be much higher than 20 times the total resistance value.

During fader operation, due to noise generated from friction between resistive elements and contacts
and noise generated from vibration of the power mechanism, there are many factors affecting the output signal quality.

To reduce these effects, use decoupling capacitors (C).
(Use a capacitor value that matches the control circuit to which it is connected.)
* It is recommended that motor leads be shortened and twisted.
  The J12 motor may be replaced with a thicker wire in the middle.
  Consider not to interfere with other motor leads.
* A simple resistor maintenance procedure is presented. Please try it when you need it.
  However, we do not guarantee the product after this work.
* Please provide your own equipment.

    >>  1st step ,  2nd step ,  3rd step
* The Long linear taper(LB) specification has a resistive element longer than the operating range,
  eliminating the part of the fader with a small change in resistance value at both ends of the fader.
  However, the residual resistance value will be larger.
* Please do not strike the fader carriage hard against either end of the fader.
* Please do not stop the fader keeping the fader carriage pushed hard against either end of the fader.


Outline -DC12V Coreless motor type
 
MF-915-xxxK-J12
(1circuit, Control-bar: 9mm)
MF-915-xxxK-J12
(1circuit, Control-bar: 10.5mm)
MF-915-xxxK-J12
(2circuits, Control-bar: 9mm)
MF-915-xxxK-J12
(2circuits, Control-bar: 10.5mm)

Outline -DC8V Iron cored motor type-
 
MF-915-xxxK-M8V
(1circuit, Control-bar: 9mm)
MF-915-xxxK-M8V
(1circuit, Control-bar: 10.5mm)
MF-915-xxxK-M8V
(2circuits, Control-bar: 9mm)
MF-915-xxxK-M8V
(2circuits, Control-bar: 10.5mm)

Panel cut out

Terminations


Model number
MF-915 - B 10K - J12 -     
*1   *2 *3   *4   *5


*1 Product number MF-915 : MF-915 Series
*2



 		 Output law



 		 B   : Linear taper + Touch sense track
LB : Long linear taper + Touch sense track
2B : Linear taper + Linear taper + Touch sense track
A   : Linear taper + Audio taper + Touch sense track
AP : Linear taper + AP taper + Touch sense track
*3
 		 Total resistance (Law1 and Law2)
 		 10K : 10kohm
5K   : 5kohm
*4
 		 DC Motor type
 		 J12  : DC12V Coreless
M8V : DC8V Iron cored
*5
 		 Control-bar length: Length (Bracket height)
 		 Blank : Standard 9mm (5mm)
L10.5  : 10.5mm (6.5mm)


    Model Number Search 

  • MF-915-B10K-J12
    (9mm control-bar, Linear taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-B5K-J12
    (9mm control-bar, Linear taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-B10K-M8V
    (9mm control-bar, Linear taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-B5K-M8V
    (9mm control-bar, Linear taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-B10K-J12-L10.5
    (10.5mm control-bar, Linear taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-B5K-J12-L10.5
    (10.5mm control-bar, Linear taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-B10K-M8V-L10.5
    (10.5mm control-bar, Linear taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-B5K-M8V-L10.5
    (10.5mm control-bar, Linear taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-LB10K-J12
    (9mm control-bar, Long linear taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-LB5K-J12
    (9mm control-bar, Long linear taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-LB10K-M8V
    (9mm control-bar, Long linear taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-LB5K-M8V
    (9mm control-bar, Long linear taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-LB10K-J12-L10.5
    (10.5mm control-bar, Long linear taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-LB5K-J12-L10.5
    (10.5mm control-bar, Long linear taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-LB10K-M8V-L10.5
    (10.5mm control-bar, Long linear taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-LB5K-M8V-L10.5
    (10.5mm control-bar, Long linear taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-2B10K-J12
    (9mm control-bar, Linear taper x2, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-2B5K-J12
    (9mm control-bar, Linear taper x2, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-2B10K-M8V
    (9mm control-bar, Linear taper x2, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-2B5K-M8V
    (9mm control-bar, Linear taper x2, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-2B10K-J12-L10.5
    (10.5mm control-bar, Linear taper x2, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-2B5K-J12-L10.5
    (10.5mm control-bar, Linear taper x2, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-2B10K-M8V-L10.5
    (10.5mm control-bar, Linear taper x2, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-2B5K-M8V-L10.5
    (10.5mm control-bar, Linear taper x2, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-A10K-J12
    (9mm control-bar, Linear taper and Audio taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-A5K-J12
    (9mm control-bar, Linear taper and Audio taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-A10K-M8V
    (9mm control-bar, Linear taper and Audio taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-A5K-M8V
    (9mm control-bar, Linear taper and Audio taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-A10K-J12-L10.5
    (10.5mm control-bar, Linear taper and Audio taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-A5K-J12-L10.5
    (10.5mm control-bar, Linear taper and Audio taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-A10K-M8V-L10.5
    (10.5mm control-bar, Linear taper and Audio taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-A5K-M8V-L10.5
    (10.5mm control-bar, Linear taper and Audio taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-AP10K-J12
    (9mm control-bar, Linear taper and AP taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-AP5K-J12
    (9mm control-bar, Linear taper and AP taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-AP10K-M8V
    (9mm control-bar, Linear taper and AP taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-AP5K-M8V
    (9mm control-bar, Linear taper and AP taper, Resistance 5kohm, DC8V Irion cored motor)
  • MF-915-AP10K-J12-L10.5
    (10.5mm control-bar, Linear taper and AP taper, Resistance 10kohm, DC12V Coreless motor)
  • MF-915-AP5K-J12-L10.5
    (10.5mm control-bar, Linear taper and AP taper, Resistance 5kohm, DC12V Coreless motor)
  • MF-915-AP10K-M8V-L10.5
    (10.5mm control-bar, Linear taper and AP taper, Resistance 10kohm, DC8V Irion cored motor)
  • MF-915-AP5K-M8V-L10.5
    (10.5mm control-bar, Linear taper and AP taper, Resistance 5kohm, DC8V Irion cored motor)

   After selecting each specification, the model number for ordering appears at the top.
   (If blank, there is no target model.)

   Output law :
 		 Linear taper Long linear taper
Linear taper + Linear taper Linear taper + Audio taper Linear taper + AP taper
   Total resistance value : 10kohm 5kohm
   DC Motor type : DC12V Coreless DC8V Iron cored
   Control-bar length : 9mm 10.5mm
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Update list
   
2025.05.15. Additional 3D data (step format).
2025.04.21. First edition