AV
DI TH AIL
ST RO AB
RI U LE
B U GH
TI
ON
Features
s
s
s
s
s
s
Surface Mount / Single-Turn Cermet /
Process Sealed
Elastomer seal allows multiple
adjustments (5 rotations)
Compatible with all surface mount
manufacturing processes
Recommended for reflow processing only
s
s
Cross-slot rotor design suitable for
automatic adjustment equipment
Supplied in 12mm embossed tape,
compatible with automatic pick-and-place
assembly equipment
Patent #5,095,298
Plastic rotor minimizes RF & ESD
concerns
3374 - 4mm Square Trimming Potentiometer
Electrical Characteristics
3374X/W
Packaging Specifications
4.01
(.158)
ADJ. SLOT
.48 WIDE
(.019)
.38
X
DEEP
(.015)
2.54
X
LONG
(.100)
2 PLCS.
2.69
±
.20
MAX.
(.106
±
.008)
X Orientation Shown
Standard Resistance Range
..................................10 to 2 megohms
(see standard resistance table)
Resistance Tolerance .............±20% std.
End Resistance........1% or 2 ohms max.
(whichever is greater)
Contact Resistance Variation
..............................3% or 3 ohms max.
(whichever is greater)
Resolution.....................................Infinite
Adjustment Angle ...................240º nom.
Maximum Voltage ...........................200V
Environmental Characteristics
.30 + .025/- .076
(.012 + .001/- .003)
1
1.78
(.070)
3.56
(.140)
3
3.98
±
.10
(.157
±
.004)
2.00
±
.05
(.079
±
.002)
8.00
±
.10
(.315
±
.004)
Power Rating
70°C.......................................0.25 watt
125°C..........................................0 watt
Operating Temperature Range
...................................-55°C to +125°C
Temperature Coefficient
<500K ohms.....................±100ppm/°C
≥500K
ohms.....................±150ppm/°C
Seal ......................................5 turns min.
Humidity ........MIL-STD 202 Method 103
Vibration ........20G; TRS ±1%, VRS ±1%
Shock ..........100G; TRS ±1%, VRS ±1%
Load Life (@70ºC Rated Power,
1000 hours) ...........................TRS ±3%
Rotational Life ......100 cycles; TRS ±3%
Thermal Shock ...........................5 cycles
TRS ±2%, VRS ±1%
Physical Characteristics
4.29
±
.20
(.169
±
.008)
1.93
(.076)
2
0.61 TYP.
(.024) 2 PLCS.
0.74 TYP. 2 PLCS.
(.029)
1.97
(.078)
1.75
±
.10
(.069
±
.004)
12.00
±
.30
(.472
±
.012)
5.00
±
.20
(.197
±
.008)
TAPE
177.8
±
2.03
DIA.
(7.000
±
.080)
2.0
(.079)
REF.
.76
(030)
EQUAL
SPACED
3 PLCS.
1.73 MIN.
(.068)
3.96
(.156)
4.90 MAX.
(.193)
59.2
(2.331)
REF.
21.01
±
.76
(.827
±
.030)
DIA.
REEL
Torque.............................18 - 180gm/cm
Mechanical Angle .................Continuous
Marking ..........Manufacturer’s trademark
and part marking code
Wiper ..........Positioned at 50% nominal
Standard Packaging ......750 pcs./7” reel
Adjustment Tool ..............................H-90
1.98
(.078)
3.17
(.125)
.99
(.039)
.99
(.039)
6.78
(.267)
13.0
±
.50
(.512
±
.020)
DIA.
14.0
±
1.5
(.551
±
.59)
Meets EIA 481
1.40
(.055)
Standard Resistance Table
Resistance
(Ohms)
10
20
50
100
200
500
1,000
2,000
5,000
10,000
20,000
50,000
100,000
200,000
500,000
1,000,000
2,000,000
Part Marking
Code
A1
21
51
A2
22
52
A3
23
53
A4
24
54
A5
25
55
A6
26
Resistance
Code
100
200
500
101
201
501
102
202
502
103
203
503
104
204
504
105
205
How To Order
3374 X - 1 - 502 E
Model
Style
Orientation of Parts in Tape:
Style W - Terminals Toward
Sprocket Holes
Standard or Modified
Product Indicator
-1 = Standard Product
Resistance Code
Embossed Tape
750 pcs./7” reel (standard)
Consult factory for other available options.
CCW
3.99
(.157)
2
1
CLOCKWISE
WIPER
3
CW
TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED
DIMENSIONS ARE:
METRIC
(INCHES)
Popular values listed in boldface. Special
resistances available.
SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.
58
Specifications are subject to change without notice.
BOURNS [ BOURNS ELECTRONIC SOLUTIONS ]
