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     STEP VARIABLE ATTENUATOR

TYPE-D Series
Au-plated contact materials (Low contact resistance).
Φ36mm body.
4 types attenuation circuits.
Used a highly precise resistor.

 
Last update: 2024.02.21. [Electrical-spec] [Mechanical-spec] [Note] [Dimensions] [Model-number] EU-RoHS


Information
 

Electrical specifications TYPE-D Series
Attenuation
 
BTS-50dB 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 37, 42, 50, cut-off
OtherPlease see product list.
Attenuation  accuracy


 
Attenuation step Error in step Max. Attenuation
0.5dB or less.Less than ±0.05 Less than ±0.1
1 - 2dB Less than ±0.1 Less than ±0.2
3dB or more Less than ±0.2 Less than ±0.4
Accuracy of impedance ±2% (Impedance 600ohm), ±5% (Other impedance)
Cut off [15kHz]


 
Cut-off Max. Attenuation Impedance
80dB Min. 50dB 600ohm
70dB Min. 50dB 7kohm
58dB Min. 20dB 7kohm
Voltage proof 1 Min. at AC500V
Insulation resistance 50Mohm or more at DC500V
Input level Max. 0.3W
Rotational life 30,000 Cycles Min. (18cycles/min, Insertion loss: 1dB or less)
* The output side in the potentiometer circuit load should be used with high impedance (20 times or more than the total resistance value).

Mechanical specifications TYPE-D Series
Operating angle [ (Step angle) x (Number of steps) ] degrees ±2 degrees
Strength Nut-Attached 100Ncm
Attached parts M3 screw (Length: Panel thickness + 3 to 5mm) or Hexagonal nut (M9)
Stopper strength 50Ncm
Push-pull strength 50N


General specifications TYPE-D Series
Temperature range -10 to +60 degrees C (Operating), -15 to +65 degrees C (Storage)
Relative humidity 80%RH (No condensation)

Note
* Solder heat resistance: 350deg C max, 5sec max, 2 times. (Manual soldering only)
   The solder please use the thing of the same composition. (Solder for wire lapping sticks to a terminal.)
   Use solder: SN100C (Sn-0.7Cu-0.05Ni-Ge) NIHON SUPERIOR CO.,LTD.
* Special order of the shaft length is possible. Please contact us for details.
* It is highly recommended that the fault tolerant system is to be set up in the big situation like the live broadcast.
* Replacing it from other brands tests it enough, and please consider.
* Cannot use this product for the signal line using phantom 48V.
* This product is an attenuator of the types to change resistance.
   Therefore, a switching noise may occur.

Dimensions - TYPE-D


Dimensions - Terminations


Model number
2 P 50 D S - 10Kohm - TM
*1 *2 *3 *4 *5   *6   *7


*1
 		 Number of circuits
 		 Blank : Single circuit
2         : Dual circuits specified
*2



 Circuit
(Please see dimensions-terminal.)


 P    : Potentiometer (Unbalanced circuit)
T    : Bridged-T (Unbalanced circuit)
H    : Bridged-H (Balanced circuit)
HN : Balanced Bridged-H (Balanced circuit)
*3 Max attenuation   
*4
 		 Product type
 		 D   : TYPE-D Series
sD : TYPE-sD Series (Bridge-H, 600ohm, BTS-50dB only. dim: D-4)
*5
  		 Stepper option
  		 Blank : Non-stepper type (Without clicks)
S        : Stepper type (With clicks)
*6 Impedance   
*7
  		 Mounting style
  		 Blank : Standard (Fastened at 2 points with screws)
TM      : Threaded mounting bushing


Standard lineups
Order number Standard products with a simple number.
Circuit




















 		POTENTIOMETER
  Unbalanced circuit
BRIDGED-T
  Insertion loss: 0dB
  Constant impedance
  Unbalanced circuit
BRIDGED-H
  Insertion loss: 0dB
  Constant impedance
  Balanced circuit
BRIDGED-HN
  Insertion loss: 0dB
  Constant impedance
  Balanced circuit
  With Ground point
Max. AttenuationMaximum attenuation without Cut off point.
Attenuation types
 		BTS-50dB: Look at specifications.
Ex) 1dBx10: 0, 1, ...(1dB step)..., 9, 10dB
ImpedanceTotal resistance (Potentiometer), Input / Output Impedance (other circuits)
Frequency RangeOperating frequency range.
1step angle
 		The angle to the next decrement point.
Total rotational angle = (Number of steps) x (1step angle)
Total Number of steps
 		Determined by the Circuit and Attenuation types.
Total number of contacts = Total number of steps + 1
Stepper optionWith: With Clicks
Cut off
 		Cut off attenuation.
Please see the cut-off attenuation specification.
Direction of attenuation
 		CCW: Attenuation decreases with the clockwise (Up to Signal level).
CW: Attenuation increases with the clockwise (Down to Signal level).
DimensionPlease see the Dimension and Dimension number.

Order No.
Model number		 Circuit Max. Attenuation Attenuation
types		 Impedance
[ohm]		 Frequency
range [Hz]		 1step
angle		 Total steps Stepper
option		 Cut-off Direction of
attenuation		 Dim.
D-P001
P20DS-50kohm		 P 20dB 1dB x20 50k DC - 50k 15degs 21 With With CCW D-1
D-P002
P20D-50kohm		 P 20dB 1dB x20 50k DC - 50k 15degs 21 - With CCW D-1
D-P003
P42DS-50kohm		 P 42dB 2dB x21 50k DC - 50k 15degs 21 With - CCW D-1
D-P004
P42D-50kohm		 P 42dB 2dB x21 50k DC - 50k 15degs 21 - - CCW D-1
D-P005
P42DS-250kohm		 P 42dB 2dB x21 250k DC - 15k 15degs 21 With - CCW D-1
D-P006
P42D-250kohm		 P 42dB 2dB x21 250k DC - 15k 15degs 21 - - CCW D-1
D-P007
P50DS-50kohm		 P 50dB BTS-50dB 50k DC - 50k 15degs 21 With With CCW D-1
D-P008
P50D-50kohm		 P 50dB BTS-50dB 50k DC - 50k 15degs 21 - With CCW D-1
D-P009
P50DS-1kohm		 P 50dB BTS-50dB 1k DC - 100k 15degs 21 With With CCW D-1
D-P010
P50D-1kohm		 P 50dB BTS-50dB 1k DC - 100k 15degs 21 - With CCW D-1
D-P011
P50DS-10kohm		 P 50dB BTS-50dB 10k DC - 50k 15degs 21 With With CCW D-1
D-P012
P50D-10kohm		 P 50dB BTS-50dB 10k DC - 50k 15degs 21 - With CCW D-1
D-P013
P50DS-100kohm		 P 50dB BTS-50dB 100k DC - 20k 15degs 21 With With CCW D-1
D-P014
P50D-100kohm		 P 50dB BTS-50dB 100k DC - 20k 15degs 21 - With CCW D-1
                       
D-T001
T20DS-600ohm		 T 20dB 1dB x20 600 DC - 20k 15degs 21 With With CCW D-1
D-T002
T20D-600ohm		 T 20dB 1dB x20 600 DC - 20k 15degs 21 - With CCW D-1
D-T003
T20DS-600ohm		 T 20dB 1dB x20 600 DC - 20k 15degs 21 With With CW D-1
D-T004
T20D-600ohm		 T 20dB 1dB x20 600 DC - 20k 15degs 21 - With CW D-1
D-T005
T20DS-600ohm		 T 20dB 1dB x20 600 DC - 200k 15degs 20 With - CCW D-1
D-T006
T20D-600ohm		 T 20dB 1dB x20 600 DC - 200k 15degs 20 - - CCW D-1
D-T007
T40DS-600ohm		 T 40dB 2dB x20 600 DC - 20k 15degs 21 With With CCW D-1
D-T008
T40D-600ohm		 T 40dB 2dB x20 600 DC - 20k 15degs 21 - With CCW D-1
D-T009
T40DS-600ohm		 T 40dB 2dB x20 600 DC - 150k 15degs 20 With - CCW D-1
D-T010
T40D-600ohm		 T 40dB 2dB x20 600 DC - 150k 15degs 20 - - CCW D-1
D-T011
T50DS-3kohm		 T 50dB BTS-50dB 3k DC - 15k 15degs 21 With With CCW D-1
D-T012
T50D-3kohm		 T 50dB BTS-50dB 3k DC - 15k 15degs 21 - With CCW D-1
D-T013
T50DS-7kohm		 T 50dB BTS-50dB 3k DC - 15k 15degs 21 With With CCW D-1
D-T014
T50D-7kohm		 T 50dB BTS-50dB 3k DC - 15k 15degs 21 - With CCW D-1
D-T015
T50DS-600ohm		 T 50dB BTS-50dB 600 DC - 20k 15degs 21 With With CCW D-1
D-T016
T50D-600ohm		 T 50dB BTS-50dB 600 DC - 20k 15degs 21 - With CCW D-1
D-T017
T50DS-600ohm		 T 50dB 5dB x10 600 DC - 20k 30degs 10 With - CCW D-1
D-T018
T10DS-600ohm		 T 10dB 1dB x10 600 DC - 500k 15degs 10 With - CCW D-1
D-T019
T10DS-600ohm		 T 10dB 1dB x10 600 DC - 500k 30degs 10 With - CCW D-1
D-T020
T30DS-600ohm		 T 30dB 3dB x10 600 DC - 150k 15degs 10 With - CCW D-1
D-T021
T30D-600ohm		 T 30dB 3dB x10 600 DC - 150k 30degs 10 - - CCW D-1
D-T022
2T50DS-600ohm		 T x2 50dB BTS-50dB 600 DC - 20k 15degs 21 With With CCW D-1
D-T023
2T50D-600ohm		 T x2 50dB BTS-50dB 600 DC - 20k 15degs 21 - With CCW D-1
                       
D-H001
H50DS-600ohm		 H 50dB BTS-50dB 600 DC - 20k 15degs 21 With With CCW D-2
D-H002
H50D-600ohm		 H 50dB BTS-50dB 600 DC - 20k 15degs 21 - With CCW D-2
                       
D-HN001
HN50DS-600ohm		 HN 50dB BTS-50dB 600 DC - 20k 15degs 21 With With CCW D-3
D-HN002
HN50D-600ohm		 HN 50dB BTS-50dB 600 DC - 20k 15degs 21 - With CCW D-3
                       
SD-H001
H50sDS-600ohm		 H 50dB BTS-50dB 600 DC - 20k 15degs 21 With With CCW D-4
SD-H002
H50sD-600ohm		 H 50dB BTS-50dB 600 DC - 20k 15degs 21 - With CCW D-4


Method of ordering
1. Can estimate the standard lineup product only with the order number.
2. In the case of the specifications product which a standard lineup does not have, there are two ways of estimate methods.

    a: Method to change a part of the standard lineup specifications

        a-1: Please inform it of the order number and specifications change point.
               Modifiable point: Cut off (With / Without), Stepper option (With / Without), Impedance, Control shaft length

        a-2: Examine production possibility with designated specifications before an estimate.

        a-3: Inform it of the model number and an estimate.

    b: Special order specifications

        b-1: Please inform it of specifications of the hope.
              (Cannot change the basic electric specifications such as input levels.)
               Modifiable point: Cut off (With / Without), Stepper option (With / Without), Impedance, Control shaft length, Circuit, Max.Attenuation,
               Attenuation type

        b-2: Examine production possibility with designated specifications before an estimate.

        b-3: Inform it of the model number and an estimate.




Update list
   
2024.02.21. Threaded mounting bushing style specification is added.
2022.11.14. First edition