AV
DI TH AIL
ST RO AB
RI U LE
B U GH
TI
ON
Features
Surface Mount 4mm Square / Multiturn
Cermet / Industrial / Sealed
s
Sealed to withstand board wash
processing
s
Pick and place centering design, with
flush adjustment
s
4mm design meets EIA/EIAJ/IPC/VRCI
SMD standard trimmer footprint
s
Top and side adjust styles
s
J-hook, and gull-wing
s
Patent #5047746 advanced drive/wiper
mechanism
s
3214 - 5-Turn Trimming Potentiometer
Electrical Characteristics
Standard Resistance Range
....................................10 to 2 megohm
(see standard resistance table)
Resistance Tolerance .............±10% std.
Absolute Minimum Resistance
.....................................1% or 2.0 ohms
(whichever is greater)
Contact Resistance Variation
...............................3% or 3 ohms max.
Resolution...................Essentially Infinite
Insulation Resistance ................500 vdc.
100 megohms min.
Dielectric Strength
Sea Level ..................600 vac (1minute)
Adjustment Angle ...............5 turns nom.
Environmental Characteristics
Power Rating (300 volts max.)
85°C .......................................0.25 watt
150°C ..........................................0 watt
Temperature Range ......-65°C to +150°C
Temperature Coefficient .....±100ppm/°C
Humidity ........MIL-STD 202 Method 106
TRS ±2%; IR 10 megohms
Vibration ..........20G TRS±1%; VRS ±1%
Shock ............100G TRS ±1%; VRS±1%
Load Life
..........@ 85°C rated power 1,000 hours
TRS 3 ohms or 3%
(whichever is greater)
Rotational Cycling..................200 cycles
TRS 3 ohms or 3%
(whichever is greater)
Thermal Shock ...........................5 cycles
TRS±2%; VRS±1%
Physical Characteristics
Mechanical Stop ...................Wiper idles
Torque ..............................180g-cm max.
Weight ................Approximately 0.01 oz.
Marking .................Manufacturer’s code,
resistance code and date code
Solderability ..............Per MIL-STD-202,
Method 208
Wiper ......................Set at 50% nominal
Flammability ..............................UL94V0
Pushover Strength ..2 Kilograms (4.4lbs)
Adjustment Tool ..............................H-91
3214G Side Adjust
1.52 DIA.
(.060)
1.17
(.046)
3214J Side Adjust
2
1
4.8
(.189)
1.52
DIA.
(.060)
1.17
(.046)
2
1
4.8
(.189)
2.79
(.110)
2.41
(.095)
5.82
(.229)
4.57
(.180)
3
2.24
(.088)
2.79
(.102)
2.4
(.095)
5.0
(.197)
4.57
(.180)
3
2.24
(.088)
ADJUSTMENT SLOT
0.56
WIDE
(.022)
.51
DEEP
X
(.020)
3.91
(.154)
0.2
.008
ADJUSTMENT SLOT
0.56
WIDE
(.022)
.51
DEEP
X
(.020)
3.7
(.146)
0.2
(.008)
0.8
(.0031)
1.27
TYP.
(.050)
5.2
(.205)
0.61
TYP.
(.024)
1.3
(.051)
2
TYP.
(.078)
4.0
(.157)
1.2 3 PLCS.
(.047)
2.0
(.079)
2.3
(.091)
2.0
(.079)
1.27 SQ. 2 PLCS.
(.050)
0.80
2 PLCS.
(.031)
1.27 2 PLCS.
(.050)
2.3
(.091)
1.3
(.051)
0.80
2 PLCS.
(.031)
2
CCW
WIPER
3214W Top Adjust
1
CLOCKWISE
3
CW
3.9
(.154)
1
2.54
(.100)
3.5
(.138)
1.2
(.047)
5.1
(.201)
1.3
(.051)
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
DIMENSIONS ARE:
METRIC
(INCHES)
3
2.6
(.102)
2
1.52 DIA.
(.060)
1.0
3 PLCS.
(.039)
5.3
(.209)
0.9
(.035)
4.8
(.189)
How To Order
3214 J - 1 - 502 E
Model
Style
Standard or Modified
Product Indicator
-1 = Standard Product - IR Reflow
* -2 = Wave Solderable
Resistance Code
Embossed Tape Designator
Style J, G: 500 pcs./7” reel (standard)
Style W: 250 pcs./7” reel (standard)
Consult factory for other available options.
* -2 has a treated stainless steel shaft
ADJUSTMENT SLOT
0.56
WIDE
(.022)
.51
DEEP
X
(.020)
1.3
2 PLCS.
(.051)
2.0
(.079)
1.2
(.047)
0.2
.008
2.9
(.114)
1.6
3 PLCS.
(.063)
2.54
(.100)
0.8
2 PLCS.
(.031)
12
Specifications are subject to change without notice.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
