Features
n Recommended for reflow soldering
n Rotor design compatible with pick and
place and automatic adjustment equipment
n 3 mm size meets EIA/EIAJ standard
trimmer footprint
n RoHS compliant*
n For trimmer applications/processing
guidelines, click here
TC33 - 3 mm SMD Trimpot® Trimming Potentiometer
*RoHS Directive 2011/65/EU and amendment of Annex II 2015/863.
“Trimpot” is a registered trademark of Bourns, Inc.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific disclaimers as set forth on the last page of
this document, and at www.bourns.com/legal/disclaimer.pdf.
Electrical Characteristics
Standard Resistance Range
...................... 100 ohms to 1 megohm
(see standard resistance table)
Resistance Tolerance ............ ±25 % std.
Absolute Minimum Resistance
≤1KOhms .................. 20 ohms max.
>1KOhms ................. 2 % max. of TR
Contact Resistance Variation .... 5 % max.
Resolution.................. Essentiallyinnite
Adjustment Angle................. 270 ° ± 20 °
Environmental Characteristics
Power Rating (50 VDC max.)
70 °C .................................... 0.15 watt
Temperature Range ....-40 °C to +100 °C
TemperatureCoefcient ....±250 ppm/°C
Humidity...... +40 °C ± 2 °C, 90-95 % RH
TRS max. .......................................±5 %
Load Life
....... @ 70 °C rated power 1000 hours
TRS ±5 %
Rotational Cycling
.........................20 cycles, TRS ±10 %
Physical Characteristics
Torque................ 0.98-11.76 mN-m max.
Mechanical Angle ....Continuous rotation
for Model TC33X-1
Marking ...................... Part marking code
Standard Packaging ... 2500 pcs./7 ” reel
Adjustment Tool .................... See note(1)
Pushing Static Force .................. <4.9 N
(1) Use an adjustment tool with the
following recommended measurements:
1.7 mm (.067 in.) cross slot
The recommended adjustment tool size
is not available from Bourns. Please
contact a Bourns representative for
further information.
Product Dimensions
1.2
(.047)
0.7
(.028)
1.2
(.047)
1.5
(.059)
0.8
(.031)
1.2
(.047)
1.2
(.047)
1.6
(.063)
1.2
(.047)
0.7
(.028)
1.2
(.047)
1.5
(.059)
0.8
(.031)
1.2
(.047)
1.2
(.047)
1.6
(.063)
2.7
(.106)
2.1
(.083)
3.0
(.118)
3.7
(.146)
0.8
(.031)
0.65
(.026)
0.5
(.020)
3.8
(.150)
1.75
(.069)
1.0
(.039)
0.95
(.037)
1.2
(.047)
1.2
(.047)
2.0
(.079)
0.75
(.030)
1.5
(.059)
2.7
(.106)
0.8
(.031)
1.0
(.039)
0.9
(.035)
0.75
(.030)
1.5
(.059)
2.1
(.083)
3.0
(.118)
3.6
(.142)
0.65
(.026)
0.5
(.020)
3.8
(.150)
1.75
(.069)
2.0
(.079)
0~15
2
3
1
2
3
1
SEE
MOUNTING
NOTE
BELOW
Mounting Note:
The gray area can be used to apply cement to hold the unit
in place during board processing, if required.
Mounting Note:
The gray area can be used to apply cement to hold the unit
in place during board processing, if required.
SEE
MOUNTING
NOTE
BELOW
TC33X-1
Recommended Land Pattern
TC33X-2
Recommended Land Pattern
DIMENSIONS: MM
(INCHES)
TOLERANCES: ± 0.3 EXCEPT WHERE NOTED
(.010)
13CW
CLOCKWISE
CCW
2WIPER
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Cautions
Aqueous cleaning not recommended
Flow soldering not recommended;
usereowsoldering
Model TC33 is not designed to be used
withux-usecarewithuxwhen
soldering
It is not recommended to adjust the Model
TC33X-1 past the effective rotary angle.
If an excessive force is applied to the
sliding part (the operating shaft) when
adjusting the resistance value, the sliding
part may be deformed or broken.
Standard Resistance Table
Resistance Resistance
(Ohms) Code
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
500,000 504
1,000,000 105
Popular distribution resistance values listed in
boldface.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific disclaimers as set forth on the last page of this document, and at www.bourns.com/legal/disclaimer.pdf.
TC33 - 3 mm SMD Trimpot® Trimming Potentiometer
Packaging Specications
REV. 05/19
TC33X-1, -2
9.0 ± 1.0
(.354 ± .039)
TAPE
REEL
Meets EIA 481
180.0 -3/+0
(7.087 -.118/+0) DIA.
11.4 ± 1.0
(.449 ± .039)
60.0 -0/+1.0
(2.362 -0/+.039)
DIA.
13.0
(.512) DIA.
1.75 ± 0.1
(.069 ± .004)
1.55 ± 0.05
(.061 ± .002)
DIA.
4.0 ± 0.1
(.157 ± .004)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.1
(.079 ± .004)
0.07
(.003)
0.25
(.010)
1.7
(.067)
5.5
(.217)
8.0
(.315) 2.75
(.108)
3.5 ± 0.05
(.138 ± .002)
330.2 -3/+0
(13.0 -.118/+0) DIA.
-OR-
0.06
(.002)
0.3
(.012)
2.4
(.094)
5.5
(.217)
1.75 ± 0.1
(.069 ± .004)
1.55 ± 0.05
(.061 ± .002)
DIA.
4.0 ± 0.1
(.157 ± .004)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.1
(.079 ± .004)
8.0
(.315) 2.75
(.108)
3.5 ± 0.05
(.138 ± .002)
9.0 ± 1.0
(.354 ± .039)
TAPE
REEL
Meets EIA 481
180.0 -3/+0
(7.087 -.118/+0) DIA.
11.4 ± 1.0
(.449 ± .039)
60.0 -0/+1.0
(2.362 -0/+.039)
DIA.
13.0
(.512) DIA.
DIMENSIONS: MM
(INCHES)
TOLERANCES: ± 0.3 EXCEPT WHERE NOTED
(.012)
9.0 ± 1.0
(.354 ± .039)
TAPE
REEL
Meets EIA 481
180.0 -3/+0
(7.087 -.118/+0) DIA.
11.4 ± 1.0
(.449 ± .039)
60.0 -0/+1.0
(2.362 -0/+.039)
DIA.
13.0
(.512) DIA.
1.75 ± 0.1
(.069 ± .004)
1.55 ± 0.05
(.061 ± .002)
DIA.
4.0 ± 0.1
(.157 ± .004)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.1
(.079 ± .004)
0.07
(.003)
0.25
(.010)
1.7
(.067)
5.5
(.217)
8.0
(.315) 2.75
(.108)
3.5 ± 0.05
(.138 ± .002)
330.2 -3/+0
(13.0 -.118/+0) DIA.
-OR-
0.06
(.002)
0.3
(.012)
2.4
(.094)
5.5
(.217)
1.75 ± 0.1
(.069 ± .004)
1.55 ± 0.05
(.061 ± .002)
DIA.
4.0 ± 0.1
(.157 ± .004)
4.0 ± 0.1
(.157 ± .004)
2.0 ± 0.1
(.079 ± .004)
8.0
(.315) 2.75
(.108)
3.5 ± 0.05
(.138 ± .002)
9.0 ± 1.0
(.354 ± .039)
TAPE
REEL
Meets EIA 481
180.0 -3/+0
(7.087 -.118/+0) DIA.
11.4 ± 1.0
(.449 ± .039)
60.0 -0/+1.0
(2.362 -0/+.039)
DIA.
13.0
(.512) DIA.
How To Order
TC33 X - 1 - 103 E
Model
Style
Standard Product Indicator
-1 = Continuous Rotation
-2 = Rotational Stop
Resistance Code
Embossed Tape Designator
E = 2500 pcs./7 ” Reel
G = 9000 pcs./13 ” Reel
Tape and reel material meets Antistatic ANSI/
ESD 5541-2003 packaging standards.
Recommended Storage Conditions
Temperature ......................+5 °C to +35 °C
Humidity.......................... 45 % to 85 % RH
Recommended Reow Solder Prole
Temperature (°C)
Time (Seconds)
EXIT
180 SEC. (REF.)
ROOM
TEMPERATURE 70 SEC.
(REF.)
150 °C (REF.)
230 °C
260 °C (MAX.)
40 SEC.
(MAX.)
10 SEC.
(MAX.)
ENTRANCE
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afliates (collectively, “Bourns”).
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
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The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
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PDF: http://www.bourns.com/docs/Legal/disclaimer.pdf
C1753 05/17/18R