54

PL
IA
NT
CO
M
*R
oH
S
Features
Applications
■ RoHS compliant*
■ Test and measurement equipment
■ Push-pull switch
■ Communications equipment
■ Linear and audio tapers
■ Medical diagnostic equipment
■ PC board and bushing mount
■ Professional audio equipment
■ Splash seal
■ Metal bushing and shaft
54 - 1/2 ” (12.5 mm) Panel Control w/Push-Pull Switch
Electrical Characteristics1
Standard Resistance Range
Linear ........................................................................................................................................................................................ 1K to 500K ohms
Audio ........................................................................................................................................................................................ 1K to 500K ohms
Total Resistance Tolerance
B & D Tapers.............................................................................................................................................................................................. ±20 %
E & S Tapers .............................................................................................................................................................................................. ±10 %
Independent Linearity ........................................................................................................................................................................................ ±5 %
Absolute Minimum Resistance ...................................................................................................................................................... 2 ohms maximum
Effective Electrical Angle .............................................................................................................................................................................. 270 ° ±5
Contact Resistance Variation ............................................................................................................................................................................ ±2 %
Dielectric Withstanding Voltage (MIL-STD-202 – Method 301)
Sea Level .............................................................................................................................................................................1,500 VAC minimum
70,000 .....................................................................................................................................................................................500 VAC minimum
Insulation Resistance ....................................................................................................................................................... 1,000 megohms minimum
Power Rating At 70 °C (Derate To 0 At 125 °C)
(Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)
Linear Tapers ........................................................................................................................................................................................... 0.5 watt
Audio Tapers .......................................................................................................................................................................................... 0.25 watt
Theoretical Resolution ................................................................................................................................................................... Essentially infinite
Environmental Characteristics1
Operating Temperature Range ....................................................................................................................................................... +1 °C to +125 °C
Storage Temperature Range ......................................................................................................................................................... -55 °C to +125 °C
Temperature Coefficient Over Storage Temperature Range ..............................................................................................................±1,000 ppm/°C
Vibration ...............................................................................................................................................................................................................8 G
Total Resistance Shift ..................................................................................................................................................................±2 % maximum
Voltage Ratio Shift .......................................................................................................................................................................±5 % maximum
Shock..................................................................................................................................................................................................................20 G
Total Resistance Shift ..................................................................................................................................................................+2 % maximum
Voltage Ratio Shift .......................................................................................................................................................................±5 % maximum
Load Life ..................................................................................................................................................................................................1,000 hours
Total Resistance Shift ........................................................................................................................................................±10 % TRS maximum
Rotational Life (No Load)......................................................................................................................................................................50,000 cycles
Total Resistance Shift ........................................................................................................................................................±10 % TRS maximum
Contact Resistance Variation....................................................................................................................................................................... ±2 %
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
B & E ................................................................................................................................................................................................. ±10 % TRS
D & S ................................................................................................................................................................................................. ±20 % TRS
IP Rating
Entire Unit ..................................................................................................................................................................................................... IP64
Shaft/Bushing ............................................................................................................................................................................................... IP65
Mechanical Characteristics
Stop Strength........................................................................................................................................................................... 39.5 N-cm (3.5 lb.-in.)
Mechanical Angle ....................................................................................................................................................................................... 290 ° ±5 °
Torque
Starting/Running .......................................................................................................................................... 0.2 to 1.3 N-cm (0.25 to 2.0 oz.-in.)
Mounting (Torque on Bushing) ............................................................................................................................ 1.7 to 2.0 N-m (15 to 18 lb.-in.)
Weight ......................................................................................................................................................................................................... 10 grams
Terminals .................................................................................................................................................................................... PC pin or solder lug
Soldering Condition .....................................................Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ” wire diameter.
Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean flux.
Part can be wave soldered at 260 °C (500 °F) for 5 seconds, no wash process with no clean flux.
Marking .................................................................................................... Manufacturer’s trademark, part number, resistance value and date code.
Ganging (Multiple Section Potentiometers) ...................................................................... Inquire for availability, minimum order quantity and price.
Hardware ............................................................................................. One lockwasher and one mounting nut is shipped with each potentiometer.
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
*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.
Customers should verify actual device performance in their specific applications.
54 - 1/2 ” (12.5 mm) Panel Control w/Push-Pull Switch
Initial Electrical Characteristics - Switch
Switch Type .....................................................................................................................................................................DPDT (Break before make)
Power Rating (Resistive Load) ....................................................................................................................................................... 0.25 A @ 30 VDC
Dielectric Withstanding Voltage (MIL-STD-202, Method 301)
Sea Level ..................................................................................................................................................................................1000 VAC minimum
Insulation Resistance .........................................................................................................................................................1500 megohms minimum
Contact Resistance ..............................................................................................................................................................100 milliohms maximum
Actuating Stroke .............................................................................................................................................................0.41 cm (0.16 in.) maximum
Environmental Characteristics1
Vibration ................................................................................................................................................................................................................8 G
Contact Resistance............................................................................................................................................................100 milliohms maximum
Contact Bounce ............................................................................................................................................................. 0.1 milliseconds maximum
Shock...................................................................................................................................................................................................................20 G
Contact Resistance............................................................................................................................................................100 milliohms maximum
Contact Bounce ............................................................................................................................................................. 0.1 milliseconds maximum
Switch Life @ Rated Power ............................................................................................................................................................15,000 actuations
Switch Actuating Force .....................................................................................................................................................0.45 kg (1.0 lb) minimum
Contact Resistance............................................................................................................................................................100 milliohms maximum
Moisture Resistance (MIL-STD-202, Method 103, Condition B)
Contact Resistance............................................................................................................................................................100 milliohms maximum
Insulation Resistance (After 24 Hours @ Room Temperature - 500 VDC) ........................................................................100 megohms minimum
1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.
Switch Configurations (Shown in Pulled Position)
A
B
A
B
A
B
C
PULLED
D
E
E
F
F
DPST NC/NO
PUSHED
D
E
DPDT
DPST NC/NC
B
A
C
B
B
C
E
C
F
DPST NO/NO
SPST NO
SPDT
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
54 - 1/2 ” (12.5 mm) Panel Control w/Push-Pull Switch
Product Dimensions
B
(SEE SHAFT/
BUSHING STYLES)
L
(SEE SHAFT/
BUSHING STYLES)
MOUNTING SURFACE
24.13 ± 0.53
(.950 ± .021)
8.89 ± 0.17
(.350 ± .007)
PRIMARY UNIT
12.5
(.492)
15.24 ± 0.25
(.600 ± .010)
SWITCH MODULE
6.25
(.246)
0.76
9 PLCS.
(.030)
MOUNTING
SURFACE
2.54
(.100)
6.99
(.275)
2.54
(.100)
3.3 - 4.7
(.130 - .185)
SWITCH ACTUATION
TRAVEL
0.64 ± 0.05
6 PLCS.
(.025 ± .002)
5.08 ± 0.3
(.200 ± .012)
0.3
(.012)
5.08 ± 0.3
(.200 ± .012)
5.08 ± 0.3
(.200 ± .012)
11.9 ± 0.3
(.469 ± .012)
3 PLCS.
0.66 ± 0.05
(.026 ± .002)
6.35 ± 0.25
(.250 ± .010)
2.54
(.100)
2.54
(.100)
5.08
(.200)
5.08
(.200)
11.9
(.469)
5.08
(.200)
SUGGESTED PCB LAYOUT
SHAFT FLAT SHOWN AT 50 % OF MECHANICAL TRAVEL.
PACKAGE DIMENSIONS WITH FRONT AND REAR PCB MOUNTING BRACKET
1.02
4 PLCS.
(.040)
MOUNTING
SURFACE
0.76
9 PLCS.
(.030)
5.08
(.200)
2 PLCS.
0.91 ± 0.05
(.036 ± .002)
2 PLCS.
1.32 ± 0.25
(.052 ± .010)
0.3
(.012)
0.64 ± 0.05
6 PLCS.
(.025 ± .002)
5.08 ± 0.3
(.200 ± .012)
5.08 ± 0.3
(.200 ± .012)
2 PLCS.
0.41 ± 0.05
(.016 ± .002)
2.54
(.100)
TERMINAL
SPACING
2 PLCS.
5.08 ± 0.3
(.200 ± .012)
11.9 ± 0.3
(.469 ± .012)
DIMENSIONS:
Anti-Rotation Lug
6.35 ± 0.25
(.250 ± .010)
5.08
(.200)
5.08
(.200)
0.41
(.016)
5.08
(.200)
1.32
(.052)
5.08
(.200)
5.08
(.200)
11.9
(.469)
28.37
(1.117)
SUGGESTED PCB LAYOUT
Electrical Schematic
CCW
(Style "A", 90° CW Shown)
0.80 ± 0.30
(.031 ± .012)
2.54
(.100)
5.08
(.200)
MM
(INCHES)
Terminal Layout
2.54
(.100)
3
1
5.70
(.224)
CW
2
1.52
(.060)
Suggested Panel Layouts
2
.25
(.010)
.13
.XXX = ±
(.005)
SHAFT DIMENSIONS ± .80
(1/32)
FOR TOLERANCES SHOWN: .XX = ±
1
3
A
D
B
E
C
F
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
6.20
(.244)
2.20
(.087)
BUSHING DIAMETER
0.80
( .031)
6.35
(.250)
2.77
(.109)
BUSHING DIAMETER
0.80
( .031)
The Model 54 can be used with either
of the two panel layouts shown below.
54 - 1/2 ” (12.5 mm) Panel Control w/Push-Pull Switch
Shaft/Bushing Styles
9.53
(.375)
How To Order
54
6.35
9.53
SHAFT
BUSHING
(.250)
(.375)
D
-
C
28
-
B
15
/
P50
L
RoHS IDENTIFIER
Code Description
L
Compliant
ANTI-ROTATION LUG /
BRACKET OPTION
Code Description
AR Lug 90 ° CW
A
No AR Lug or Bracket
D
Front Bracket
L
Front and Rear Bracket
N
A Style Bushing
STD. LENGTH ‘L’
.750
(19.05)
.875
(22.23)
SWITCH OPTION
Code Description
P50 DPDT
NO. OF SECTIONS
Code Description
A
Single plus Switch
RESISTANCE CODES
Code Value in Ohms
10 1K
13 5K
15 10K
18 50K
20 100K
22 250K
23 500K
0.79 ± 0.25
OPT.
(.031 ± .010)
0.79 ± 0.10
OPT.
(.031 ± .004)
1/4-32UNEF-2A
3.18
6.35
SHAFT
BUSHING
(.125)
(.250)
STD. LENGTH ‘L’
.750
(19.05)
.875
(22.23)
MAX. FLAT LENGTH
1.52 ± 0.25
OPT.
(.060 ± .010)
BUSHING DESIGNATOR
Code Description
3/8 ” D x 3/8 ” L Threaded
A
1/4 ” D x 1/4 ” L Threaded
C
ELEMENT TAPER
TYPE/TOLERANCE
Code Description
Linear CP ±20 %
B
Linear CP ±10 %
E
CW Audio CP ±20 %
D
CW Audio CP ±10 %
S
MODEL
Code Description
54 PC Terminals w/Push-Pull
Switch
C Style Bushing
9.53
(.375)
A
1.194 ± 0.10
OPT.
(.047 ± .004)
3/8-32UNEF-2A
6.35
(.250)
A
1.60 ± 0.25
OPT.
(.063 ± .010)
15.88
(.625)
SHAFT LENGTH DESIGNATOR
Code Description
24 3/4 ” FMS Long
28 7/8 ” FMS Long
5.49 ± 0.10
OPT.
(.216 ± .005)
3/8-32UNEF-2A
6.35
9.53
SHAFT
BUSHING
(.250)
(.375)
A Style Bushing Flatted Shaft
Boldface features are Bourns
standard options. All others are
available with higher minimum
order quantities.
Code
B
C
E
SHAFT STYLE
Description
1/4 ” D Slotted End
1/4 ” D Flatted End
1/8 ” D Slotted End
AVAILABLE ONLY WITH
BUSHING
Code
A
A
C
STD. LENGTH ‘L’
.750
(19.05)
.875
(22.23)
DIMENSIONS:
MM
(INCHES)
Asia-Pacific: Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe: Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas: Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
REV. 03/12
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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