Standard Resistance Range .................................................................................................................................................100 ohms to 1 megohm
Total Resistance Tolerance ............................................................................................................................................................... (A Taper) ±10 %
Operating Temperature Range ...................................................................................................................................................... -40 °C to +125 °C
Storage Temperature Range ......................................................................................................................................................... -65 °C to +125 °C
Temperature Coefficient Over Storage Temperature Range ................................................................................................................ ±150 ppm/°C
Vibration ............................................................................................................................................................................................................ 20 G
Total Resistance Shift ................................................................................................................................................................. ±2 % maximum
Voltage Ratio Shift ...................................................................................................................................................................... ±6 % maximum
Shock ................................................................................................................................................................................................................. 50 G
Total Resistance Shift ................................................................................................................................................................. ±2 % maximum
Voltage Ratio Shift ...................................................................................................................................................................... ±6 % maximum
Total Resistance Shift ................................................................................................................................................................. ±3 % maximum
Rotational Life (C & N Bushing) No Load .............................................................................................................................................50,000 cycles
Total Resistance Shift ................................................................................................................................................................. ±5 % maximum
Moisture Resistance (MIL-STD-202, Method 106, Condition B)
Total Resistance Shift ................................................................................................................................................................. ±2 % maximum
Salt Spray ...................................................................................................................................................MIL-STD-202, Method 101, Condition A
IP Rating .............................................................................................................................................................................................................IP 40
Mechanical Characteristics
1
Stop Strength ............................................................................................................................................................... 33 N-cm (3 lb.-in.) maximum
Starting and Running .......................................................................................................................................... 3.53 N-cm (5 oz.-in.) maximum
Mounting (Torque on Bushing)................................................................................................................... 1.7-2.0 N-m (15-18 lb.-in.) maximum
Weight (Single Section)............................................................................................................................................................... 25 grams maximum
Terminals ................................................................................................................................................................... Printed circuit pins or J-Hooks
Soldering Condition .................................................... Recommended hand soldering using Sn85/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, wiring diagram, date code, resistance, manufacturer’s part number
Ganging ............................................................................................................................................................................................ 1 cup maximum
Hardware ........................... One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.
1 AT ROOM AMBIENT: +25 °C NOMINAL AND 50 % RELATIVE HUMIDITY NOMINAL, EXCEPT AS NOTED.
*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
3862 - 1/2 ” Diameter Single-Turn Panel Control
Product Dimensions
PCB LAYOUT
5.08
(.200)
3.04
(.120)
2.54
(.100)
TYP.
5.08
(.200)
45
°
6.325
(.249)
6.731
(.265)
DIA.
2.438
+
.127 / -0.000
(.096 + .005 / - .000)
DIA. 2 PLCS.
PANEL LAYOUT
6.325
(.249)
3862E/T
11.51
±
.41
(.453
±
.016)
12.07
±
.76
(.475
±
.030)
12.7
±
.41
DIA.
(.500
±
.016)
15.88
3862C/N
STD.
(5/8)
.89
±
.25
11.51
±
.41
3.18
±
.03
(.035
±
.010)
(.453
±
.016)
DIA.
2 PLCS. (.125
±
.001)
12.07
±
.76
L
.79 (.475
±
.030)
(.031)
DIA. 12.7
±
.41
(.500
±
.016)
9.53, 22.23
STD.
(3/8, 7/8)
.89
±
.25
3.18
±
.03
(.035
±
.010)
DIA.
(.125
±
.001)
2 PLCS.
L
.79
2.38
(.031)
(.094)
Shaft End Detail
3862
45
° ±
15
°
2.31
2 PLCS.
(.091)
.41
.41
45
° ±
5
°
X
45
° ±
5
°
X
6.25
(.016) 6.25
(.016)
-32 UNEF - 2A
-32 UNEF - 2A
(1/4)
6.35
3.3
.79
±
.25
(1/4)
.79
±
.25
POSITION OF SLOTS VARIABLE
OPTIONAL FLAT
LONG OR
(.250)
(.13) 16.88(.031
±
.010)
(.031
±
.010)
9.53
12.7
L=
FOR "T" BUSHING,
FOR "E" BUSHING
FROM BUSHING FOR SHAFTS UNDER (5/8)
(.375)
(.500)
6.35
9.65
L=
FOR "C" BUSHING,
FOR "N" BUSHING
(.250)
(.380)
6.22
(.245)
2 PLCS.
C OF LUG
L
.25
(.010)
2 PLCS.
32-1/2
° ±
10
°
FLAT ORIENTATION
@ CCW END
SLOTS ARE
NOT ORIENTED
PC PIN TERMINAL
3.04
(.12)
2
3
5.08
(.20)
5.08
(0.20)
1
2.54
(0.10)
.723
(.0285)
12.06 ± .762
(.475 ± .03)
J-HOOK TERMINAL
4.953
REF ONLY
(.195)
2
3
8.89
(.35)
5.08
(0.20)
1
2.54
(0.10)
.762
(.03)
TYP.
2.286
(.09)
TYP.
1
CCW
3
2
POTENTIOMETER
6.53
(.250)
MAX.
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
How to Order 3862 Series Panel Controls
3862
C
-
28
2
-
102
A
L
12
16
20
28
SHAFT TYPE
(FMS) & DIAMETER
3/8 ” (9.53 mm) L X 1/8 ” (3.18 mm) D
1/2 ” (12.7 mm) L x 1/8 ” (3.18 mm) D
5/8 ” (15.88 mm) L x 1/8 ” (3.18 mm) D
7/8 ” (22.20 mm) L X 1/8 ” (3.18 mm) D
RESISTANCE
CODE/VALUE
(IN OHMS)
BUSHINGS
C
C
C, E, N, T
C, E, N, T
(101)
(251)
(501)
(102)
(252)
(502)
(103)
(253)
(503)
(104)
(254)
(504)
(105)
100
250
500
1K
2.5K
5K
10K
25K
50K
100K
250K
500K
1M
RoHS IDENTIFIER
L
Compliant
Consult factory for lengths not shown.
ELEMENT
TAPER/TOLERANCE
A
H
Linear ±10 %
Linear ±5 %
C
E
N
T
BUSHING
Plain 1/4 ” (6.35 mm) D x 1/4 ” (6.35 mm) L
Locking 1/4 ” (6.35 mm) D x 1/2 ” (12.7 mm) L
Plain 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L
Locking 1/4 ” (6.35 mm) D x 3/8 ” (9.53 mm) L
MODEL
3862 1/2 ” (12.7 mm) D Single-Turn Cermet
1
2
3
5
6
7
TERMINAL STYLE AND
SHAFT TYPE
Solder Lugs, Plain End
Solder Lugs, Slotted End
Solder Lugs, Flatted Shaft
PC Pins, Plain End
PC Pins, Slotted End
PC Pins, Flatted End
Boldface features are Bourns standard
options. All others are available with higher
minimum order quantities.
REV. 04/11
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
