Features
■ Carbon element
■ Ganging up to 8 sections available
■ Knurled and fl atted shaft styles
■ Audio taper option
■ Tracking error within 3 dB
■ RoHS compliant*
PTR90 Series - 9 mm Multi-Ganged Potentiometer w/Rotary Switch
Electrical Characteristics
Standard Resistance Range
....................... 1 K ohms to 1 M ohms
Total Resistance Tolerance
.................................±10 % or ±20 %
Standard Tapers ................Linear & audio
Maximum Operating Voltage
............................... 150 VAC, 20 VDC
Rated Power
Linear Taper .......................0.05 watts
Audio Taper ......................0.025 watts
Noise .................................. 100 mV max.
Insulation Resistance @ 250 VDC
....................................... 100 M ohms
Dielectric Withstanding Voltage
..............................................300 VAC
End Resistance .................20 ohms max.
Tracking Error (-40 dB to 0 dB) .......±3 dB
Environmental Characteristics
Operating Temperature
.................................-10 °C to +50 °C
Rotational Life ................... 15,000 cycles
IP Rating .......................................... IP 40
Switch Characteristics
Contact Resistance .....50 milliohms max.
Rated Power ...................... 3 A @ 16 VDC
Detent Torque .................. 400 g-cm max.
Switch Activation Angle ............ 50 ° max.
Mechanical Characteristics
Mechanical Angle ...................300 ° ±10 °
Running Torque ............... 10 to 250 g-cm
Stop Strength .......................... 4.0 kg-cm
Shaft Push/Pull Strength .......5.0 kgf min.
Shaft Wobble .....0.6 x L/20 mm p-p max.
Mounting Torque ............. 7.0 kg-cm min.
Soldering Condition
Manual Soldering
........96.5 Sn/3.0 Ag/0.5 Cu solid wire
or no-clean rosin cored wire
270 °C max. for 3 seconds
Wave Soldering
.............96.5 Sn/3.0 Ag/0.5 Cu solder
with no-clean fl ux
260 °C max. for 5 seconds
Wash Process ...... Not recommended
Mounting Hardware ........ One fl at washer
and one mounting nut supplied
per potentiometer
Product Dimensions
DIMENSIONS: MM
(INCHES)
PTR901
M7XP0.75
SW
13.4 ± 0.5
(.528 ± .020)
0.8 ± 0.2
(.014 ± .007)
5.0
(.197)
6.25
(.246)
0.3
(.012)
0.3
(.012) 0.7
(.028)
MOUNTING
SURFACE
RECOMMENDED PCB LAYOUT
1.0 +0.2/-0
(.039 +.008/-0)
DIA. HOLES
5 PLCS.
5.0
(.197)
6.25
(.246)
SW
3
2
1
5.0
(.197)
SCHEMATIC
3
2
1
R1
SW
PTR902
M7XP0.75
SW R2 R1
15.8 ± 0.5
(.528 ± .020)
0.8 ± 0.2
(.014 ± .007)
5.0
(.197)
6.25
(.246)
MOUNTING
SURFACE
RECOMMENDED PCB LAYOUT
1.0 +0.2/-0
(.039 +.008/-0)
DIA. HOLES
8 PLCS.
5.0
(.197)
6.25
(.246)
2.5
(.098)
SW R2 R1
3
2
1
3
2
1
5.0
(.197)
2.5
(.098)
SCHEMATIC
33
22
11
R1R2
SW
0.3
(.012)
0.3
(.012)
2 PLCS.
2 PLCS.
0.7
(.028)
*RoHS COMPLIANT
Derating Curve
Ambient Temperature (°C)
20 40 50 60 70 80 90 1003010
0
20
33
40
60
80
100
0
Rating Power Ratio (%)
Standard Resistance Table
Resistance Resistance
(Ohms) Code
1,000 102
2,000 202
5,000 502
10,000 103
20,000 203
50,000 503
100,000 104
200,000 204
500,000 504
1,000,000 105
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice. Users should verify actual device performance in their specific
applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the
last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
PTR90 Series - 9 mm Multi-Ganged Potentiometer w/Rotary Switch
Product Dimensions
DIMENSIONS: MM
(INCHES)
PTR904
M7XP0.75
SW R2 R1R4 R3
23.3 ± 0.5
(.917 ± .020)
0.8 ± 0.2
(.014 ± .007)
5.0
(.197)
6.25
(.246)
MOUNTING
SURFACE
RECOMMENDED PCB LAYOUT
1.0 +0.2/-0
(.039 +.008/-0)
DIA. HOLES
14 PLCS.
5.0
(.197)
6.25
(.246)
2.5
(.098)
2.5
(.098)
SW R2 R1R4 R3
3
2
1
3
2
1
3
2
1
3
2
1
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
SCHEMATIC
33
22
11
R3R4
SW
33
22
11
R1R2
PTR906
M7XP0.75
1R2RWSR4R3R6 R5
30.8 ± 0.5
(1.213 ± .020)
0.8 ± 0.2
(.014 ± .007)
5.0
(.197)
6.25
(.246)
MOUNTING
SURFACE
RECOMMENDED PCB LAYOUT
1.0 +0.2/-0
(.039 +.008/-0)
DIA. HOLES
20 PLCS.
5.0
(.197)
6.25
(.246)
2.5
(.098)
2.5
(.098)
1R2RWSR4R3R6 R5
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098) 5.0
(.197)
SCHEMATIC
33
22
11
R3R4
SW
33
22
11
R5R6
33
22
11
R1R2
PTR908
M7XP0.75
1R2RWSR4R3R6 R5R8 R7
38.3 ± 0.5
(1.508 ± .020)
0.8 ± 0.2
(.014 ± .007)
5.0
(.197)
6.25
(.246)
MOUNTING
SURFACE
RECOMMENDED PCB LAYOUT
1.0 +0.2/-0
(.039 +.008/-0)
DIA. HOLES
26 PLCS.
5.0
(.197)
6.25
(.246)
2.5
(.098)
2.5
(.098)
1R2RWSR4R3R6 R5R8 R7
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098)
5.0
(.197)
2.5
(.098) 5.0
(.197)
SCHEMATIC
33
22
11
R3R4
SW
33
22
11
R5R6
33
22
11
R7R8
33
22
11
R1R2
Applications
■ Audio/TV sets
■ Amplifi ers/mixers/drum machines/synthesizers/DJ equipment
■ Multimedia sound systems
■ Portable electronics
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
PTR90 Series - 9 mm Multi-Ganged Potentiometer w/Rotary Switch
Product Dimensions
DIMENSIONS: MM
(INCHES)
SHAFT STYLE
"K"
A
B18 TEETH
KNURL
1.0
(.039)
6.0 +0/-0.1
(.236 +0/-.004)
DIA.
L ±
15
(.591)
L
1.5
(.059)
0.5
(.020)
20
(.787)
25
(.984)
5
(.197)
B7
(.276)
10
(.394)
6
(.236)
A10
(.394)
12
(.472)
30 °
9.5 ± 0.3
(.374 ± .012)
6.0
(.236)
4.8 ± 0.3
(.189 ± .012)
6.5 ± 0.3
(.256 ± .012)
3.5
(.138)
0.8
(.031)
5.0
(.197)
0.8
(.031)
2.0
(.079)
SHAFT SHOWN IN CCW POSITION
SHAFT STYLE
"F"
B
4.5
(.177)
6.0 +0/-0.1
(.236 +0/-.004)
DIA.
F
L ±0.5
(.020)
15
(.591)
L20
(.787)
25
(.984)
5
(.197)
B7
(.276)
10
(.394)
7
(.276)
F12
(.472)
12
(.472)
9.5 ± 0.3
(.374 ± .012)
6.0
(.236)
4.8 ± 0.3
(.189 ± .012)
6.5 ± 0.3
(.256 ± .012)
3.5
(.138)
0.8
(.031)
5.0
(.197)
0.8
(.031)
2.0
(.079)
SHAFT SHOWN IN CCW POSITION
60 °
4.5
(.177)
How To Order
PTR90 1 - 2 0 20 K - B 203
Model
• PTR90 = With
Rotary Switch
No. of Sections
• 1 = 1 Section
• 2 = 2 Sections
• 3 = 3 Sections
• 4 = 4 Sections
• 5 = 5 Sections
• 6 = 6 Sections
• 8 = 8 Sections
Pin Style
• 1 = PC Pins vertical/
down facing
and ±10 %
Total Resistance
Tolerance
• 2 = PC Pins vertical/
down facing
and ±20 %
Total Resistance
Tolerance
Center Detent Option
• 0 = No Detent
• 2 = Center Detent
Standard Shaft Length
• 15 = 15 mm
• 20 = 20 mm
• 25 = 25 mm
Shaft Styles
• K = Knurled Type Shaft (Metal)
18 Toothed Serration Type
• F = Flatted Metal Shaft
Resistance Taper (See Taper Charts)
Taper Series followed by Curve Number
Resistance Code (See Table)
Other shaft styles available.
REV. 11/18
010
10
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
A Series Tapers
Terminal 1-2 Output Voltage
Terminal 1-3 Input Voltage X 100 (%)
Rotational Travel (%)
(05A): A1
(10A): A2
(15A): A
(20A): A4
(25A): A5
(30A): A6
010
10
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
B Series Tapers
Terminal 1-2 Output Voltage
Terminal 1-3 Input Voltage X 100 (%)
Rotational Travel (%)
(5B): B5
(B): B
(1B): B1
(2B): B2
(2B): B2
(3B): B3
(4B): B4
010
10
20
20
30
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
C Series Tapers
Terminal 1-2 Output Voltage
Terminal 1-3 Input Voltage X 100 (%)
Rotational Travel (%)
(30C): C6
(05C): C1
(10C): C2
(15C): C
(25C): C5
(20C): C4
Tapers
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
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the user’s sole risk.
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also apply to such Bourns® custom products.
Users shall not sell, transfer, export or re-export any Bourns®WYVK\J[ZVY[LJOUVSVN`MVY\ZLPUHJ[P]P[PLZ^OPJOPU]VS]L[OL
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