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STEP VARIABLE ATTENUATOR

	TYPE P2550 / P2560 Series
	Au-plated contact materials (Low contact resistance). 22 or 21positions (0dB - Cut off or Max.attenuation). Used a highly precise resistor. 25mm square (Body) Rear terminal

Last update: 2024.02.29.

[Electrical-spec]

[Mechanical-spec]

[Note]

[Dimensions]

[Model-number]

EU-RoHS

Information

Electrical specifications	TYPE P2550/P2560 Series
Products	*P2551*-*	*P2552*-*	*P25*3*-*	*P25*4*-*	*P25*5*-*	*P25*6*-*	*P25*7*-*	*P25*8*-*
Attenuation [Load: High]	BTS-50dB		2dB x20		1dB x20		0.5dB x20
Circuit method	Potentiometer circuit
Total resistance (1-C)	1kohm, 7kohm, 10kohm, 100kohm
Total resistance tolerance	±3%
Attenuation  accuracy  [Load: High]	±0.3dB
Max attenuation [Load: High]	50dB ±0.6dB		40dB ±0.6dB		20dB ±0.6dB		10dB ±0.6dB
Cut off [15kHz]	80dB Min.	-	80dB Min.	-	80dB Min.	-	80dB Min.	-
Insertion loss	0.3dB or less
Frequency range (DC to Max)	DC to 20kHz
Voltage proof	1 Min. at AC500V
Insulation resistance	100Mohm or more at DC500V
Input level	Max. 0.1W
Rotational life	30,000 Cycles Min. (18cycles/min, Insertion loss: 1dB or less)

* BTS-50dB      0, 2, 4, ...(2dB step)... , 30, 32, 34, 37, 42, 50, Cut off

* [Load: high]    The output side load should be used with high impedance (20 times or more than the total resistance value).

Mechanical specifications	TYPE P2550/P2560 Series
Operating angle	With cut off : 315 degrees ±2 degrees Without cut off : 300 degrees ±2 degrees
Step angle	15 degrees
Strength Nut-Attached	50Ncm
Attached parts	Hexagonal nut (M9)
Stopper strength	50Ncm
Push-pull strength	50N

General specifications	TYPE P2550/P2560 Series
Temperature range	-10 to +70 degrees C (Operating), -15 to +75 degrees C (Storage)
Relative humidity	90%RH (No condensation)

Note

* Solder heat resistance: 350deg C max, 5sec max, 2 times. (Manual soldering only)

* 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.

* This product is an attenuator of the types to change resistance.    Therefore, a switching noise may occur.

Dimensions - *P25***-*

P2550 / P2560

Dimensions - Terminations

Model number

P25 5 1 S - 10K - 6R 22 *1 *2 *3 *4   *5   *6 *7

*1	Product number	P25 : TYPE P2550/P2560 Series
*2	Direction of attenuation	5 : CCW 6 : CW (“BTS-50dB Eis not selectable.)
*3	Attenuation types and Cut off	1 : BTS-50dB, With Cut off 2 : BTS-50dB, Without Cut off 3 : 2dB x20, With Cut off 4 : 2dB x20, Without Cut off 5 : 1dB x20, With Cut off 6 : 1dB x20, Without Cut off 7 : 0.5dB x20, With Cut off 8 : 0.5dB x20, Without Cut off
*4	Mechanical click option	Blank : Without click S        : With click (15degrees step)
*5	Total resistance	1K     : 1kohm 7K     : 7kohm 10K   : 10kohm 100K : 100kohm
*6	Shaft types	6R     : Φ6 Round Standard
*7	Shaft length (Length from mounting surface to shaft end)	20 : 20mm Standard (* Only "6R20" can be omitted.) 22 : 22mm 25 : 25mm 30 : 30mm

  Lineups (Click on "Attenuation type x Number of circuit")

Update list
2024.02.29.	Added standard shaft length.
2023.03.22.	First edition