|  | H |
SECTION H — ELECTRICITY

|  | H01 |
BASIC ELECTRIC ELEMENTS

|  | H01 |
Note(s) Processes involving only a single technical art, e.g. drying, coating, for which provision exists elsewhere are classified in the relevant class for that art.

|  | H01C |
RESISTORS

|  | H01C 1/00 |
Details of resistors

|  | H01C 1/02 |
· | Mounting; Housing; Enclosing; Filling the housing or enclosure

|  | H01C 1/04 |
· | Arrangements of distinguishing marks, e.g. colour coding

|  | H01C 1/06 |
· | Electrostatic or electromagnetic shielding arrangements

|  | H01C 1/08 |
· | Cooling arrangements; Heating arrangements; Ventilating arrangements

|  | H01C 1/12 |
· | Current collectors, e.g. mercury contacts; Means for moving current collectors

|  | H01C 1/14 |
· | Terminals; Tapping points

|  | H01C 1/16 |
· | Resistor networks not otherwise provided for

|  | H01C 3/00 |
Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven, or formed as grids

|  | H01C 3/02 |
· | arranged or constructed for reducing self-induction, capacitance, or variation with frequency

|  | H01C 3/04 |
· | Iron-filament ballast resistors; Similar resistors having variable temperature coefficient

|  | H01C 5/00 |
Adjustable metal resistors made of wire or ribbon, e.g. coiled, woven, formed as grids

|  | H01C 5/02 |
· | with current collectors gliding thereon

|  | H01C 5/04 |
· | with current collectors rolling thereon

|  | H01C 5/06 |
· | with one or more fixed tapping points

|  | H01C 5/08 |
· | structurally combined with a switch and having a common operating member therewith

|  | H01C 7/00 |
Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material and/or powdered semi-conducting material with or without insulating material (semi-conductor devices Fulltext... Hierarchy... Expanded...H01L; devices exhibiting galvanomagnetic effects Fulltext... Hierarchy... Expanded...H01V 5/00)

|  | H01C 7/02 |
· | having positive temperature coefficient, e.g. with layers of carbon

|  | H01C 7/04 |
· | having negative temperature coefficient, e.g. thermistor

|  | H01C 7/06 |
· | independent of temperature

|  | H01C 7/08 |
· | sensitive to radiant heat or light (dependent on the presence of a potential-jump barrier in the resistor Fulltext... Hierarchy... Expanded...H01L 15/06)

|  | H01C 7/10 |
· | dependent on applied voltage, e.g. varistor

|  | H01C 7/12 |
· · | Overvoltage protection resistors

|  | H01C 7/14 |
· | dependent on electric field applied by a control electrode insulated from the resistor, e.g. fieldistor (field-effect transistors Fulltext... Hierarchy... Expanded...H01L 11/14)

|  | H01C 7/16 |
· | dependent on magnetic field (applications for measuring magnetic or electric variables Fulltext... Hierarchy... Expanded...G01R)

|  | H01C 9/00 |
Adjustable resistors formed as one or more layers or coatings; Adjustable resistor made from powdered conducting material and/or powdered semi-conducting material with or without insulating material

|  | H01C 9/02 |
· | with current collectors gliding thereon

|  | H01C 9/04 |
· | with one or more fixed tapping points

|  | H01C 9/06 |
· | adjustable by mechanical pressure or force (resistance strain gauges Fulltext... Hierarchy... Expanded...G01; carbon microphones Fulltext... Hierarchy... Expanded...H04R 21/02)

|  | H01C 9/08 |
· | structurally combined with a switch and having a common operating member therewith

|  | H01C 11/00 |
Liquid resistors

|  | H01C 13/00 |
Resistors not covered by groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...H01C 3/00-H01C 11/00

|  | H01C 15/00 |
Resistors constructed for special applications (for overvoltage protection Fulltext... Hierarchy... Expanded...H01C 7/12; for heating purposes Fulltext... Hierarchy... Expanded...H05B; adaptations for structural combination with measuring instruments Fulltext... Hierarchy... Expanded...G01R)

|  | H01C 15/02 |
· | Coherers or like imperfect resistors for detecting electro-magnetic waves

|  | H01C 15/04 |
· | Arresters using powdered resister material or semi-conductive material

|  | H01C 17/00 |
Apparatus or processes specially adapted for manufacturing resistors