Spindle Operated Potentiometers Type 31 Series Key Features � Versatile Design can be Customised to Suit Your Requirements � SPST Switch Style � Low Cost Twist Tab Model � PC Mounting Bracket � Insulated Shafts Up To 50mm � Non Linear Laws � Available with Choice of Bush Styles � Eyelet or PC Terminations TE Connectivity will customize these neat 16mm diameter control potentiometers to suit your requirements. They comprise a printed carbon resistance element with 0.25 W current handling and are avaliable with various bush, termination and spindle styles. As an additional feature, the range includes a twist tab design with mounting bracket applications for use where low price is an important consideration. Characteristics - Electrical Resistance Range (Law): 1K Ohm to 1M Ohm Linear 4K7 to 470K (Non Linear) Resistance Values: 1, 2.2 and 4.7 per decade Resistance Tolerance: ± 20% (± 10% by selection) Rated Dissipation at 40°C: 0.25W (Linear), 0.125W (Non Linear) Limiting Element Voltage: 350Vdc or ac RMS Electrical Rotation: 267° NOM without switch, 240° NOM with switch Terminal Resistance: 5 Ohms, Max. Noise (ENR): 2% Max. (Linear), 3% Max. (Non Linear) Insulation Resistance: 4 G Ohms Min. Voltage Proof: 500 Vac peak Characteristics - Mechanical Operating Torque: 15 mNm, Max. Mechanical Rotation: 270° Nominal End Stop Torque: 350 mNm, Max. Characteristics - Environmental Limits of Resistance Change: 15% (After 1000 hours endurance) Temperature characteristics of 5% resistance ( 20°C to 70°C ): 2 Bump Severity: 390m/s , 4000 Bumps 2 Vibration Severity: 10 - 500 Hz, 0.75mm or 98m/s Climatic Category: 8 days @ 36°C 82% RH DR < 15% Mechanical Endurance: 15000 Operations ( Min ) 1773116 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change. Spindle Operated Potentiometers Type 31 Series DIY Design The 31 Series can be customised to suit your individual requirements with features such as detent action, track centre tap etc. Please call our technical sales team to discuss variations on these 16mm diameter devices. Resistance Laws 100 90 80 70 C A - Linear 60 B - Log A 50 C - Inverse Log B 40 30 20 10 0 0 10 203040 5060 70 80 90 100 % Effective Electrical Clockwise Rotation Dimensions Type 31 Type 32 Type 34 (Non Switched only) Type 35 (Non Switched only) Type 36 1773116 CIS BI 06/2011 Dimensions are in millimeters Dimensions are shown for For email, phone or live chat, go to: te.com/help and inches unless otherwise reference purposes only. specified. Values in brackets Specifications subject are standard equivalents. to change. Percent Voltage Rated Output Spindle Operated Potentiometers Type 31 Series Multi Ganged Types Switched Types How to Order 31 E X A 104 M W B 25 B Potentiometer Type Customer Identity Resistance Value Shaft Length Bush Details 31 - Std Spindle Style N - Black plastic 8mm The first two digits are FMF in mm S- Standard 32 - No Bush A/F - M10 with 4mm hole signifigant figures of Mtg Bracket resistance value and the Standard Lengths are X - Customer Special P -Diecast M7 x 6mm third denotes the num- 15, 20, 25 and 50mm See Drawing 33 - Spindle with Integ 4mm hole ber of zeros following. (provide copy Knurled Knob 4mm S - Diecast M10 x 8mm with order) State Colour 6.35mm hole e.g. 4.7K Ohms: 472 34 - Rev Mount with 22K Ohms: 223 T - Diecast M7 x 9mm mounting pin and PC 100K Ohms: 104 4mm hole terminals swept down U - No Bush to board V - Diecast M10 x 8mm 35 - Rev Mount with 6mm hole PC Terminals swept down to board. W - Black plastic M10 No terminal on case 8mm M10 6mm hole 36 - Forward mount with PC pins swept forward to parallel to shaft 37 - Dual gang style sin- gle shaft same value / tol on each section 38 - Single Spindle Pot with centre detent Termination Style Resistor Law Resistance Tolerance Shaft Style Switch Details A - Plain 6mm A - DPST - Demko E - Std Eyelet A - Linear approved 4A/250V AC B - Slotted 6mm P - Std PC 12.5mm MH K - 10% B - SPST - Eyelet C - Flatted 6mm R - Long PC 15mm MH B - Log Termination (5mm A/F) X - Extra long for M - 20% C - DPDT - Changeover C - Inv. Log rear PC Mtg D - Flatted 6mm Switch deep flat 4mm A/F S - PC bend forward T - SPST - PC Push at 90° E - Plain 4mm Switch F - Full 6.35mm flat - special angle G - Flatted 4mm H - Plain 6.35mm J - Flatted 6.35mm (4.6mm A/F) TE Connectivity, TE connectivity (logo) and TE (logo) are trademarks. Other logos, product and Company names mentioned herein may be trademarks of their respective owners. While TE has made every reasonable effort to ensure the accuracy of the information in this datasheet, TE does not guarantee that it is error-free, nor does TE make any other representation, warranty or guarantee that the information is accurate, correct, reliable or current. TE reserves the right to make any adjustments to the information contained herein at any time without notice. TE expressly disclaims all implied warranties regarding the information contained herein, including, but not limited to, any implied warranties of merchantabili- ty or fitness for a particular purpose. The dimensions in this datasheet are for reference purposes only and are subject to change without notice. Specifications are subject to change without notice. Consult TE for the latest dimensions and design specifications.