BOURNS 3314 Service Manual
*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.
3314 - 4 mm Square Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
.......................10 ohms to 2 megohms
(see standard resistance table)
Resistance Tolerance ............±20 % std.
(tighter tolerance available)
End Resistance.......1 % or 2 ohms max.
(whichever is greater)
Contact Resistance Variation
......................................3 % or 3 ohms
Resolution.....................................Infinite
Insulation Resistance ................500 vdc.
100 megohms min.
Dielectric Strength
Sea Level.................500 vac (1 minute)
Adjustment Angle ..................210 ° nom.
Environmental Characteristics
Power Rating (300 volts max.)
70 °C......................................0.25 watt
125 °C.........................................0 watt
Temperature Range ....-55 °C to +125 °C
Temperature Coefficient ....±100 ppm/°C
Humidity.............................90-98 % RH,
10 cycles, 240 hours
TRS ±2 %; IR 10 megohms
Vibration......20 G TRS ±1 %; VRS ±1 %
Shock........100 G TRS ±1 %; VRS ±1 %
Load Life
.....(@ 70 °C Rated Power 1000 Hours)
TRS ±3 %
Rotational Life........................100 cycles
TRS ±3 %
Thermal Shock..........................5 cycles
TRS ±2 %; VRS ±1 %
Physical Characteristics
Mechanical Angle ..................240 ° nom.
Torque ..........................180 g-cm typical
Stop Strength...............300 g-cm typical
Pushover Strength (Z Style)
.............2 kilograms (4.4 lbs.) minimum
Weight ................Approximately 0.01 oz.
Marking .................Manufacturer’s code,
resistance code and date code
Wiper................50 % (Actual TR) ±10 %
Flammability...........................U.L. 94V-0
Standard Packaging
J, G and R ..................500 pcs./7 ” reel
S and Z.......................200 pcs./7 ” reel
H.....................................100 pcs./tube
Adjustment Tool ..............................H-90
3 1
2
2
3 1
2
3 1
2
1
3
1.0
(.040)
3 PLCS.
0.8 ± 0.1
(.031
± .004)
2 PLCS.
2.35
(.093)
2.3
(.091)
1.3
(.051)
2 PLCS.
2.0
(.079)
2.0
(.079)
3 PLCS.
3314J-1
0.20
(.008)
4.50
(.177)
4.50
(.177)
2.55
(.100)
TYP.
ADJ. SLOT
2.45
(.096)
.51
(.020)
.51
(.020)
WIDE
X
X
DEEP
LONG
4.00
(.157)
5.00
(.197)
5.00
(.197)
1.30 ± 0.1
(.051
± .004)
2
3 1
4.50
(.177)
3 1
2
2.55
(.100)
6.20
(.244)
5.00
(.197)
1.30 ± 0.1
(.051
± .004)
0.8 ± 0.1
(.031
± .004)
2.35
(.093)
2.3
(.091)
1.3
(.051)
5.5
(.217)
2.0
(.079)
3314G-1
0.20
(.008)
0.6
(.024)
5° MAX.
TYP.
4.50
(.177)
ADJ. SLOT
2.45
(.096)
.51
(.020)
.51
(.020)
WIDE
X
X
DEEP
LONG
TYP.
TYP.
2 PLCS.
2 PLCS.
1.3
(.051)
3 PLCS.
RECOMMENDED PCB
LAYOUT
RECOMMENDED PCB
LAYOUT
3314J-1, G-1, R-1, H-1
(Bourns Marking,
Straight Slot)
3314J-2, G-2, R-2, H-2
(Bourns Marking,
Cross Slot)
3314J-4, G-4, R-4, H-4
(Reverse Marking,
Cross Slot)
3314J-3, G-3, R-3, H-3
(Reverse Marking,
Straight Slot)
Features
■ Surface Mount / Single Turn / Cermet
Industrial / Sealed
■ Compatible with surface mount
manufacturing processes
■ Compatible with popular vacuum
pick-and-place equipment
■
J-hook, gull-wing and pinned
configurations
■
Side adjust available
■ Meets EIA/EIAJ/IPC/VECI SMD standard
trimmer designs
■ RoHS compliant* - see processing
information on lead free surface mount
trimmers
Product Dimensions
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
How To Order
3314 J - 1 - 502 E
Model
Style
Standard or Modified Product
Indicator (Styles J, G, R, H & S)
-1 = Single Slot
-2 = Cross Slot
-3 = Single Slot w/Reverse Marking
-4 = Cross Slot w/Reverse Marking
Product Indicator (Style Z only)
-GA4 = Single Slot
-1 = Cross Slot
-3 = Single Slot w/Reverse Marking
-4 = Cross Slot w/Reverse Marking
Resistance Code
Embossed Tape Designator**
E = Styles J, G and R: 500 pcs./7 ” reel
Styles S and Z: 200 pcs./7 ” reel
G = Styles J and G: 3000 pcs./13 ” reel
Style R: 2500 pcs./13 ” reel
Styles S and Z: 1000 pcs./13 ” reel
**Style H is available in tube packaging only.
Standard Resistance Table
Popular distribution resistance values listed in
boldface. Special resistances available.
Resistance Resistance
(Ohms) Code
10 100
20 200
50 500
100 101
200 201
500 501
1,000 102
2,000 202
5,000 502
10,000 103
20,000 203
50,000 503
100,000 104
200,000 204
250,000 254
500,000 504
1,000,000 105
2,000,000 205
*RoHS COMPLIANT
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Additional Features
■ Model 3314 has been approved for use
by DESC on drawings 88039 (3314J) and
90027 (3314G)
Packaging Specifications - J, G and R StylesProduct Dimensions
3314 - 4 mm Square Trimming Potentiometer
1
3
CW
CLOCKWISE
CCW
2
WIPER
DIMENSIONS ARE:
MM
(INCHES)
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
3314R-1
3 1
2.35
(.092)
6.20
(.244)
3314H-1
3 1
2.55
(.100)
5.00
(.197)
2
4.50
(.177)
5.00
(.197)
(.197)
2
5.00
6.20
(.244)
4.50
(.177)
ADJ. SLOT
2.45
(.096)
0.51
X
(.020)
0.51
X
(.020)
(.177)
ADJ. SLOT
2.45
(.096)
.51
X
(.020)
.55
X
(.022)
(.024 ± .004)
LONG
WIDE
DEEP
0.80 ± 0.10
(.031 ± .004)
1.30 ± 0.10
(.051 ± .004)
6.30
(.248)
4.50
LONG
WIDE
DEEP
0.6 ± 0.1
3 PLCS.
0.51 ± 0.13
(.020 ± .005)
2 PLCS.
DIA.
3.2
(.126)
THRU.
OUTSIDE WHEN
PINS ARE PARALLEL
2.55
(.100)
5.00
(.197)
2.55
(.100)
TYP.
0.51 ± 0.13
(.020 ± .005)
TYP.
0.20
(.008)
TYP.
RECOMMENDED PCB
LAYOUT
(.090)
(.216)
2.0
(.079)
1.3
(.051)
2 PLCS.
5.00 ± 0.10
(.197 ± .004)
4.00
(.157)
2.55
(.100)
0.80
(.031)
DIA. TYP.
0.13
R
(.005)
2.3
(.051)
2 PLCS.
5.5
0.20
(.008)
TYP.
TYP.
MAX.
TYP.
1.3
(J, G Styles)
TAPE
2.74 ± .10
(.108 ± .004)
1.5 + .10/ –.00
(.060 + .004/ - .000)
4.00 ± .10
(.157 ± .004)
2.00 ± .05
(.079 ± .020)
1.75 ± .10
(.069 ± .004)
(.472 ± .012)
REEL
1.78 ± .25
(.070) ± .010)
13.0 ± .51
(.512 ± .020)
DIA.
* Embossed Tape Designator "E"
** Embossed Tape Designator "G"
(See How To Order chart for further information.)
Meets EIA specification 481.
12.00 ± .30
177.8 ± 2.03
(7.00 ± .080)
330.2 ± 2.0
(13.00 ± .079)
DIA.
EQUAL SPACED 3 PLCS.
21.01 ± .79
(.827 ± .031)
DIA.*
DIA.**
.36
MAX.
(.014)
5.52 ± 0.5
(.217 ± .020)
5.26 ± .10
(.207 ± .004)
6.45 ± .10
(.254 ± .004)
5.26 ± .10
(.207 ± .004)
8.00 ± .20
(.315 ± .008)
DIA.
2.67 ± .25
(.105 ± .010)
59.18 ± 2.03
(2.330 ± .080)
12.4 + 2.01/ -.000
(.488 + .079/ - .000)
(G)
(R Style)
TAPE
3.29 ± .10
(.130 ± .004)
(J)
1.5 + .10/ –.00
(.059 + .004-.00)
DIA.
4.00 ± .10
(.157 ± .004)
2.00 ± .05
(.079 ± .002)
1.75 ± .10
(.068 ± .004)
REEL
1.78 ± .254
(.070 ± .010)
EQUAL SPACED
3 PLCS.
13.0 ± .508
(.512 ± .020)
DIA.
177.8 ± 2.03
(7.00 ± .080)
330.2 ± 2.0
(13.00 ± .079)
* Embossed Tape Designator "E"
** Embossed Tape Designator "G"
(See How To Order chart for further information.)
Meets EIA specification 481.
DIA.*
DIA.**
6° ± 2°
(.217 ± .002)
21.01 ± .789
(.000 ± .000)
DIA.
12.4 + 2.01/ -.000
(.488 + .079/-.000)
.30
(0.12)
5.52 ± 0.05
6.45 ± 0.10
(.254 ± .004)
5.26 ± .10
(.207 ± .004)
1.50 + 0.30
(.059 ± .012)
12.00 ± .30
(4.72 ± .012
2.67 ± .254
(.105 ± .010)
59.18 ± 2.03
(2.330 ± .080)
MAX.
DIA.
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