Features
■ Single-Turn / Cermet / Industrial / Sealed
■ Miniature package
■ Compatible with surface
mount manufacturing processes
■ RoHS compliant* - see processing
information on lead free surface mount
trimmers
■ Rotor designed for automatic machine
adjust interface
■ Withstands harsh environments and
immersion cleaning processes
3361 - 1/4 ” Square SMD Trimming Potentiometer
Electrical Characteristics
Product Dimensions
Standard Resistance Range
3361P
3361S
6.71 ± 0.12
(.264 ± .005)
6.71 ± 0.12
(.264 ± .005)
.....................................10 to 2 megohms
(see standard resistance table)
Resistance Tolerance ................ 10 ꢀ std.
(tighter tolerance available)
Absolute Minimum Resistance
..........................................1 ꢀ or 2 ohms
(whichever is greater)
Contact Resistance Variation
.................................3 ꢀ or 3 ohms max.
(whichever is greater)
Electrical adjustment
Electrical adjustment
2.77 ± 0.13
(.109 ± .005)
LONG
7.37 ± 0.38
(.290 ± .015)
2.77
(.109)
7.04 ± 0.25
(.277 ± .010)
LONG
0.64 ± 0.13
(.025 ± .005)
x
WIDE
0.64
(.025)
x
x
WIDE
4.17 ± 0.38
(.164 ± .015)
0.89 ± 0.13
(.035 ± .005)
3.84 ± 0.25
(.151 ± .010)
DEEP
x
0.89
(.035)
1
3
DEEP
3361
1
3
3361
Adjustability
5.21 ± 0.63
(.205 ± .025)
Voltage........................................ 0.0ꢁ ꢀ
Resistance .................................. 0.1ꢁ ꢀ
Resolution.........................................Infinite
Insulation Resistance ....................ꢁ00 vdc.
1,000 megohms min.
4.88 ± 0.12
(.192 ± .005)
4.88 ± 0.25
(.192 ± .010)
0.46 ± 0.02
(.018 ± .001)
3 PLACES
DIA.
.038 ± 0.05
(.001 ± .002)
LEADS TO BE
COPLANAR
WITHIN 0.10
(.004)
Dielectric Strength
Sea Level .....................................900 vac
80,000 Feet..................................3ꢁ0 vac
Adjustment Angle ......................240 ° nom.
.071 ± 0.25
(.028 ± .040)
Environmental Characteristics
Maximum Soldering Exposure
(Temp/Time)....................+24ꢁ ˚C/10 Sec.
Power Rating (300 volts max.)
70 °C..........................................0.ꢁ0 watt
12ꢁ °C.............................................0 watt
Temperature Range........-ꢁꢁ °C to +12ꢁ °C
Temperature Coefficient ........ 100 ppm/°C
Seal Test............................8ꢁ °C Fluorinert†
Humidity............MIL-STD-202 Method 103
96 hours
LEADS TO BE
0.38 ± 0.12
(.015 ± .005)
COPLANAR
WITHIN 0.10
(.004)
6.65
REF.
(.062)
0.79 ± 0.25
(.031 ± .010)
2.54 ± 0.25
(.100 ± .010)
2.54 ± 0.25
(.100 ± .010)
2.54 ± 0.25
(.100 ± .010)
2
2
2.29 ± 0.25
(.090 ± .010)
1.02 ± 0.25
(.040 ± .010)
2.54 ± 0.25
(.100 ± .010)
TYP.
8.53 ± 0.76
(.336 ± .030)
2.54 ± 0.25
(.10 ± .010)
(2 ꢀ ∆TR; 10 Megohms IR)
2.29 ± 0.25
(.090 ± .010)
Vibration.............30 G (1 ꢀ ∆TR; 1 ꢀ ∆VR)
Shock...............100 G (1 ꢀ ∆TR; 1 ꢀ ∆VR)
Load Life .....1,000 hours 0.ꢁ watt @ 70 °C
(3 ꢀ ∆TR; 3 ꢀ or 3 ohms,
whichever is greater, CRV)
Rotational Life............................200 cycles
(4 ꢀ ∆TR; 3 ꢀ or 3 ohms,
1
3
2.29 ± 0.25
(.090 ± .010)
DIA.
3
1
3 PLACES
2.54 ± 0.25
(.100 ± .010)
2.54 ± 0.25
(.100 ± .010)
Recommended Land Pattern
Recommended Land Pattern
1.19 ± 0.12
(.047 ± .005)
whichever is greater, CRV)
3 PLCS
1.19 ± 0.12
(.047 ± .005)
Physical Characteristics
TYP.
3.30 ± 0.25
(.130 ± .010)
3 PLCS
Mechanical Angle ......................270 ° nom.
Torque..................................3.0 oz-in. max.
Stop Strength......................7.0 oz -in. min.
Terminals ............................Solderable pins
Weight ............................................0.02 oz.
Marking............................Resistance code,
terminal numbers, manufacturer’s
7.62 ± 0.12
(.300 ± .005)
9.70 ± 0.12
(.381 ± .005)
3.30 ± 0.25
(.130 ± .010)
2.54 ± 0.12
(.100 ± .005)
model number, style
and date code
TYP.
5.08 ± 0.12
(.200 ± .005)
Wiper....................ꢁ0 ꢀ (Actual TR) 10 ꢀ
Flammability ..............................U.L. 94V-0
Standard Packing
“S” Style........................ꢁ00 pcs./13 ˝ reel
“P” Style........................7ꢁ0 pcs./13 ˝ reel
Adjustment Tool ..................................H-90
WIPER
2
TOLERANCES: 0.25 (.010) EꢀCEPT WHERE NOTED
CW
CCW
3
1
MM
(INCHES)
DIMENSIONS ARE:
CLOCKWISE
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
†“Fluorinert” is a registered trademark of 3M Co.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.