Features

BLBL S S NTNT
LA A NN IAIA
n 3/8 ” Square/ Multiturn / Cermet /

AIAIL IOIO PLPL

AV V RRS MM
VEVES C OCO Industrial / Sealed

EE
S
S
oHoH

n Five popular terminal styles

*R*R

n Standoffs
n RoHS compliant* version available
n For trimmer applications/processing
guidelines, click here

NT T
IAIAN
PL L
MMP
CO O
S S C
oHoH
3299 - 3/8 ” Square Trimpot® Trimming Potentiometer
*R*R

Electrical Characteristics Product Dimensions Standard Resistance Table

Standard Resistance Range 3299P Resistance Resistance
.................................10 to 2 megohms Common Dimensions (Ohms) Code

EE
RE E
F FR
(see standard resistance table) ADAD 2.54 10 100
.38 1.09 ± .254 (.100) 20 200
Resistance Tolerance............ ±10 % std.
LELE

(.015) (.043 ± .010) 2.54 50 500

(tighter tolerance available) 1.12 ± .254 (.100) 100 101
Absolute Minimum Resistance 9.53 (.044 ± .010) 200 201
(.375) 500 501
............................ 1 % or 2 ohms max. 1,000 102
(whichever is greater) 1.52
6.22 ± 1.14 2,000 202
(.060)
Contact Resistance Variation (.245 ± .045) 5,000 502
10.03
10,000 103

PLPL A RAR
......................... 1.0 % or 3 ohms max.

IAIANE E
6.10 +.30/-.25

OMM S S E E

**
(.395)

C COIONONFRERE

NT T
(.240 +.012/-.010) 20,000 203
(whichever is greater) 3 HSHSRS SI D D F
.51 25,000 253
RoRo VEVERLELAEA
ADJ. SLOT 2 DIA. TYP.
Adjustability 2.29 DIA. 1
(.020) 50,000 503
Voltage................................... ±0.01 % (.090) 100,000 104
.56 200,000 204
Resistance............................. ±0.05 % X
(.022)
WIDE
250,000 254
Resolution.................................... Infinite .64 2.54
5.23
500,000 504
X DEEP (.206)
Insulation Resistance................ 500 vdc. (.025) (.100) 1,000,000 105
2,000,000 205
1,000 megohms min. BOTTOM VIEW

Dielectric Strength 3299W 1.91

(.075) Popular distribution resistance values listed in
Sea Level................................ 900 vac 2.54 boldface. Special resistances available.
(.100)
70,000 Feet............................. 350 vac
3
Effective Travel..................25 turns nom. How To Order
2
Environmental Characteristics 1 3299 W - 1 - 103 LF
Power Rating (300 volts max.) 2.54 BOTTOM VIEW Model
(.100)
70 °C....................................... 0.5 watt MIN. Style
125 °C........................................ 0 watt 3299X Standard or Modified
1.91
Temperature Range.... -55 °C to +125 °C 2.54 2.54 (.075) Product Indicator
Temperature Coefficient.... ±100 ppm/°C (.100) (.100)
3 -1 = Standard Product
Seal Test.......................85 °C Fluorinert† 2 Resistance Code
Humidity........MIL-STD-202 Method 103 1
96 hours Terminations
BOTTOM VIEW LF = 100 % Tin-plated (RoHS compliant)
(2 % ΔTR, 10 Megohms IR)
Blank = 90 % Tin / 10 % Lead-plated
Vibration........ 20 G (1 % ΔTR; 1 % ΔVR) 3299Y
2.54 2.54
1.91
(Standard)
(.075)
Shock.......... 100 G (1 % ΔTR; 1 % ΔVR) (.100) (.100)
3
Load Life Consult factory for other available options.
2
.............. 1,000 hours 0.5 watt @ 70 °C
1
(3 % ΔTR; 3 % or 3 ohms, 2.54
whichever is greater, CRV) (.100)
BOTTOM VIEW
Rotational Life........................200 cycles
(4 % ΔTR; 3 % or 3 ohms, 3299Z 1.91
whichever is greater, CRV) 2.54 2.54 (.075)
(.100) (.100)
3
Physical Characteristics 2
Torque.............................. 3.0 oz-in. max. 1
Mechanical Stops.................. Wiper idles 2.54
(.100)
Terminals........................Solderable pins BOTTOM VIEW
Weight...................................... 0.035 oz.
Marking............................ Manufacturer’s 2 WIPER
trademark, resistance code,
wiring diagram, date code, CCW 1 3 CW
REV. 11/16
manufacturer’s model CLOCKWISE
“Trimpot” is a registered trademark of Bourns, Inc.
number and style †“Fluorinert” is a registered trademark of 3M Co.
Wiper................ 50 % (Actual TR) ±10 % MM
DIMENSIONS: *RoHS Directive 2002/95/EC Jan. 27, 2003 including
(INCHES)
Flammability...........................U.L. 94V-0 annex and RoHS Recast 2011/65/EU June 8, 2011.
0.25
Standard Packaging......50 pcs. per tube TOLERANCES: ± EXCEPT WHERE NOTED Specifications are subject to change without notice.
(.010)
Adjustment Tool...............................H-90 The device characteristics and parameters in this data
sheet can and do vary in different applications and
actual device performance may vary over time.
Users should verify actual device performance in their
specific applications.