Air Capacitors

Johanson Manufacturing / Knowles Air Capacitors feature long rotational life and >106MΩ insulation resistance. These capacitors also feature a one-piece self-locking constant drive mechanism. The mechanism utilizes transverse slots to create a spring effect between two threaded sections resulting in substantial contact areas. These substantial contact areas ensure uniform torque, high Q, and low dynamic tuning noise. The air capacitors operate at -65°C to 125°C temperature range and are RoHS-compliant. These capacitors are used in filter tuning, crystal trimming, RF amplifiers, impedance matching, interstage coupling, and oscillators.

Results: 53
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (TWD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Capacitance Range
Voltage Rating
Termination Style
Length
Width
Type
Diameter
Height
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
188In Stock
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
92In Stock
Min.: 1
Mult.: 1
Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
143In Stock
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
84In Stock
Min.: 1
Mult.: 1
Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR (1.5-14 PF)
Datasheet
196In Stock
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors ECO-TRIM
Datasheet
15In Stock
Min.: 1
Mult.: 1
Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors ECO-TRIM
Datasheet
10In Stock
Min.: 1
Mult.: 1
Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
9In Stock
120On Order
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors Air Capacitor
Datasheet
10In Stock
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR, RoHS
Datasheet
45In Stock
Min.: 1
Mult.: 1

Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR TRIMMER CAPACITOR
Datasheet
48In Stock
60Expected 8/20/2026
Min.: 1
Mult.: 1

Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
96In Stock
Min.: 1
Mult.: 1

1 pF to 20 pF 250 V Through Hole 0.49 in 0.28 in 0.28 in 0.49 in - 65 C + 125 C Air Trimmer Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
133In Stock
Min.: 1
Mult.: 1

1 pF to 20 pF Wire Air Trimmer Capacitor - 65 C + 125 C Air Trimmer Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
8In Stock
Min.: 1
Mult.: 1

0.8 pF to 10 pF Through Hole 12.954 mm (0.51 in) Air Trimmer Capacitor 7.493 mm - 65 C + 125 C Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors 0.6 - 6.0PF 250V
Datasheet
7In Stock
Min.: 1
Mult.: 1

0.8 pF to 10 pF Wire Air Trimmer Capacitor - 65 C + 125 C Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
1In Stock
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
19In Stock
Min.: 1
Mult.: 1
: 20

1 pF to 16 pF Through Hole Air Trimmer Capacitor - 65 C + 125 C Air Capacitors Reel, Cut Tape
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR
Datasheet
4In Stock
Min.: 1
Mult.: 1

1 pF to 20 pF Through Hole Air Trimmer Capacitor - 65 C + 125 C Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors 1PF - 30PF 250V
Datasheet
416On Order
Min.: 1
Mult.: 1
: 20

1 pF to 30 pF Wire Air Trimmer Capacitor - 65 C + 125 C Air Capacitors Reel, Cut Tape
Knowles Johanson Manufacturing Trimmer / Variable Capacitors .8~10PF 250V
Datasheet
298Expected 10/21/2026
Min.: 1
Mult.: 1

0.8 pF to 10 pF Through Hole Air Trimmer Capacitor - 65 C + 125 C Air Trimmer Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors AIR CAPR (0.6-3.5 PF)
Datasheet
19Expected 12/9/2026
Min.: 1
Mult.: 1

0.6 pF to 3.5 pF Through Hole 12.065 mm (0.475 in) Air Trimmer Capacitor 4.064 mm - 65 C + 125 C Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors ECO-TRIM
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors ECO-TRIM
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

Air Capacitors Bulk
Knowles Johanson Manufacturing Trimmer / Variable Capacitors CERA-TRIM, LEAD FREE,T&R, XPB4
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

SMD/SMT Ceramic Trimmer Capacitor - 65 C + 125 C Air Capacitors Reel
Knowles Johanson Manufacturing Trimmer / Variable Capacitors CERA-TRIM, LEAD FREE,T&R, XPB4
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 500
Mult.: 500
: 500

SMD/SMT Ceramic Trimmer Capacitor - 65 C + 125 C Air Capacitors Reel