Doorknob Transmitting Capacitors: Ceramic
HT-55 Series
Wire or thread ceramic doorknobs. 0.312" diameter, 0.39" length. 18 gauge wired or 2-56 threads.
Part Number Capacity Voltage Current Price
(CFC) HT550002-5 2 pF NPO wire 5 kv 1.3 amps 10.00 Add
(CFC) HT55T002R-5 2.5 pF NPO 5 kv 1.4 amps 10.00 Add
(CFC) HT550003-5 3 pF NPO wire 5 kv 1.4 amps 10.00 Add
(CFC) HT55T003-5 3 pF NPO 5 kv 1.4 amps 9.00 Add
(CFC) HT55T004.5-5 4.5 pF NPOm H1-Q 5 kv - 10.00 Add
(CFC) HT550005-5 5 pF NPO wire 5 kv 1.7 amps SOLD OUT
(CFC) HT55T005-5 5 pF NPO 5 kv 1.7 amps 9.00 Add
(CFC) HT55T006-5 6 pF NPO 5 kv 2.1 amps 12.00 Add
(CFC) HT55N006-5 6 pF N750 5 kv 2.1 amps 10.00 Add
(CFC) HT55T008-5 8 pF NPO 5 kv - 14.00 Add
(CFC) HT550010-5 10 pF wire 5 kv 2.8 amps 17.00 Add
(CFC) HT55N010-5 10 pF N750 5 kv 2.8 amps SOLD OUT
HT-53 Series
Ceramic doorknob. 0.562" diameter,
0.437" long. 2-56 UNF threads or wire.
Part Number Pic Capacity / Notes Voltage Current Price
(CFC) HT53T007-5 - 7 pF NPO 5 kv 3.8 amps 11.00 Add
(CFC) HT53T012-5 Pic 12 pF NPO, Threaded 5 kv 4.1 amps 13.00 Add
(CFC) HT53T016-5 - 16 pF NPO, Threaded 5 kv - 15.00 Add
(CFC) HT53T018-5 Pic 18 pF NPO, Threaded 5 kv 4 amps 13.00 Add
(CFC) HT53T020-5 - 20 pF NPO 5 kv 4.5 amps 10.00 Add
(CFC) HT530040-5 - 40 pF wire 5 kv 5.2 amps 10.00 Add
HT-54 Series
Wire or thread ceramic doorknobs. 0.437" diameter, 0.422" length. 18 gauge wired or 2-56 threads.
Part Number Pic Capacity / Notes Voltage Current Price
(CFC) HT54T001-5 - 1 pF, ±0.25 pF Tolerance 5 kv 1 amp 15.00 Add
(CFC) HT54T002-5 Pic 2 pF NPO, Threaded 5 kv 1.1 amps 14.00 Add
(CFC) HT54T003-5 Pic 3 pF NPO, Threaded 5 kv 1.2 amps 14.00 Add
(CFC) HT54T004-5 - 4 pF NPO 5 kv 1.3 amps 14.00 Add
(CFC) HT540004-5 - 4 pF NPO wire 5 kv 2.1 amps SOLD OUT
(CFC) HT54T005-5 Pic 5 pF NPO, Threaded 5 kv 2.2 amps 15.00 Add
(CFC) HT54T006-5 Pic 6 pF NPO, Threaded 5 kv 2.3 amps 12.00 Add
(CFC) HT540006-5 - 6 pF NPO wire 5 kv 2.3 amps 13.00 Add
(CFC) HT54T007-5 - 7 pF NPO 5 kv 2.5 amps 11.00 Add
(CFC) HT54T008-5 Pic 8 pF NPO, Threaded,
Collins P/N: 913-0763-00		 5 kv 2.6 amps 11.00 Add
(CFC) HT54T009-5 - 9 pF NPO 5 kv 2.6 amps 12.00 Add
(CFC) HT54T010-5 - 10 pF NPO 5 kv 2.8 amps 12.00 Add
(CFC) HT54T020-5 - 20 pF N750 5 kv 2.8 amps 12.00 Add
HT-50 / 58 Series
Ceramic doorknob. 0.813" diameter,
0.89" long. 6-32 UNF thread.
Part Number Pic Capacity Voltage Current Price
(CFC) HT580025-75 - 25 pF NPO 7.5 kv 7.9 amps SOLD OUT
(CFC) HT580030-25 - 30 pF NPO 2.5 kv 8 amps SOLD OUT
(CFC) HT580030-75 - 30 pF NPO 7.5 kv 8 amps SOLD OUT
(CFC) HT580040-5 - 40 pF NPO 5 kv 8.3 amps 19.00 Add
(CFC) HT580040-75 Pic 40 pF 7.5 kv (Various brands available) 21.00 Add
(CFC) HT580050-5N - 50 pF NPO 2.5% 5 kv 8.5 amps 21.00 Add
(CFC) HT580050-75 - 50 pF NPO 7.5 kv 8.5 amps SOLD OUT
(CFC) HT580060-75 - 60 pF 10% 7.5 kvdc 8.7 amps SOLD OUT
(CFC) HT580062-5 - 62 pF 5 kv 8.7 amps 25.00 Add
(CFC) HT580063-5 - 63 pF 5 kv 8.8 amps 12.00 Add
(CFC) HT580065-5 - 65 pF 5 kv 9.3 amps SOLD OUT
(CFC) HT580070 - 70 pF - Removed, tested, minor bin wear 19.00 Add
(CFC) HT580073 - 73 pF - Sold as-is, removed, tested 21.00 Add
(CFC) HT580075-75 - 75 pF 7.5 kv 7.5 amps SOLD OUT
(CFC) HT580100-5 - 100 pF 5 kv 9.8 amps 21.00 Add
(CFC) HT580100-5J - 100 pF 5 kv 9.8 amps 21.00 Add
(CFC) HT580100-7.5 Pic 100 pF, HT-50 7.5 kvdc, 5% - SOLD OUT
(CFC) HT580120-5 - 120 pF 5 kv 9.9 amps 21.00 Add
(CFC) HT580140-5 - 140 pF 5 kvdc 7.5 amps 21.00 Add
(CFC) HT580140-25 Pic 140 pF 2.5 kv 8.7 amps 19.00 Add
(CFC) HT580170-75 Pic 170 pF 7.5 kvdc - 33.00 Add
(CFC) HT580200-25 - 200 pF 2.5 kv CRL brand, N750, NOS 23.00 Add
(CFC) HT580250-75 - 250 pF 7.5 kv - SOLD OUT
(CFC) HT580500-5 Pic 500 pF 5 kv - SOLD OUT
(CFC) HT581000-5 Pic 1000 pF 5 kvdc, 20% - SOLD OUT
HT-57 Series
Our largest ceramic doorknob.
1.187" diameter, 1.89" long, 10-32 UNF thread.
Part Number Pic Capacity Voltage Current Price  
(CFC) HT570025-15 - 25 pF 15 kv 13 amps SOLD OUT
(CFC) HT570040-15 - 40 pF NPO 15 kv 13 amps 20.00 Add
(CFC) HT570050-15 - 50 pF 15 kv 14 amps SOLD OUT
(CFC) HT570100-15 Pic 100 pF 15 kv 13 amps SOLD OUT
(CFC) HT570200-75 Pic 200 pF 7.5 kv - SOLD OUT
(CFC) HT570200-15 Pic 200 pF 15 kv - SOLD OUT
(CFC) HT570500-15 Pic 500 pF 15 kv - 68.00 Add
(CFC) HT570750-75 - 750 pF 7.5 kv DC - 75.00 Add
(CFC) HT571000-15 - 1000 pF 15 kv - SOLD OUT
(CFC) HT571500-15 - 1500 pF 15 kv 5.3 amps 59.00 Add
Doorknob Capacitor
5 pF / 20 kvdc
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(CFC) DCAM509KA
High Voltage Components, Inc. doorknob capacitor. 5 pF, 20 kvdc, ±10%. 6 amp @ 30 MHz. Silver terminals. 1.30"D. NOS. Made in the USA. Alt. P/N: HT51Z509DB. NSN: 5910-00-481-1136.
$295 each
HEC Ceramic Doorknob Capacitor
100 pF / 8.5 kvdc
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(CFC) SPDTW101JH
HEC doorknob capacitor. 100 pF, 8.5 kvdc, ±5% NPO. 2-1/4"DIA x 3/8"H.
$95 each
Doorknob Capacitor
400 pF / 7.5 kv
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(CFC) HT580400-75
Doorknob capacitor. 400 pF, 7.5 kv, 20%. Various brands. NOS.
$25 each
Doorknob Capacitor
1000 pF / 5 kv
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(CFC) HPD5-1000
AVX / Kyocera HPD5 doorknob capacitor. 1000 pF, 5 kv, ±20%. Ceramic. N3300 dielectric. Internal thread, both ends. 2 hole mounting flange, 1.25" x 1.25". 1.15"H x 0.88"D.
$53 each
Leadless Ceramic Doorknob Capacitor
860 pF / 15 kv
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(CFC) 860-15
Leadless ceramic doorknob capacitor. 860 pF, 15 kv. 1.23"D x 0.797"L.
$25 each
Leadless Ceramic Doorknob Capacitor
2860 pF / 40 kv
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(CFC) 2860-40
Leadless ceramic doorknob capacitor. 2860 pF, 40 kv. 2-1/8"D x 0.744"H.
$49 each
Doorknob Capacitor
50 pF ±10% / 5 kvdc / NPO
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(CFC) HT570050-5
Doorknob capacitor. 50 pF, ±10%, 5 kvdc. NPO. Ceramic. CRL 857.
$75
Doorknob Capacitor
200 pF / 7.5 kv / 13 amps
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(CFC) HT570200-75V
Doorknob capacitor. 200 pF, 7.5 kv, 13 amps. HT-57. Used. Removed from VOA transmitter.
$35 each - $32 (10+), $29 (25+)
Jennings Doorknob Capacitor
400 pF / 4 kv
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(CFC) J1DT03CG401J402
Jennings Ceramic Transmitting Capacitor, 400pF @ 4kV, 10-32 threaded terminal, 3" DIA x 1" H
$225 each
Doorknob Capacitor
500 pF
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(CFC) J1HT570500-5
Jennings doorknob capacitor. Ceramic. 500 pF, 5 kv, 10%. N3300. 1.139"D x 1.618"H. NOS. Made in the USA.
$75 each
Ceramic Doorknob
500 pF / 15 kv
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(CFC) HT590500-15
HEC ceramic doorknob capacitor. 500 pF, 15 kv. N3300.
$125 each
High Energy Doorknob Capacitor
5 pF / 7.5 kv
(CFC) HT580005-75
High energy doorknob capacitor. 5 pF, �10%, 7.5 kv, 7 amps. NPO. Mfg. P/N: HEC HT50.
*** SOLD OUT ***
Draloric Doorknob Capacitor
170 pF / 7.5 kv
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(CFC) HT580170-75
Draloric doorknob capacitor. 170 pF, 7.5 kvdc, ±10%. N750. Mfg. P/N: TOS-20X16-170-10.
*** SOLD OUT ***
Jennings Ceramic Capacitor
25 pF - 15 kv
(CFC) J1DT02-25
25 pF, 15kv, 5% NPO, 16 amps. Low profile, high Q design out performs typical HT-57 style doorknobs. 1-7/8" diameter, 1-1/8" high. #10 screw terminals.
$95
SPHT / EPSL
Ceramic Capacitors
(CFC) SPHT1P150-2
150 pF, 2kv, 12 amps. Low profile design. 1-1/2" diameter, 3/4" high. #10 screw terminals.
*** SOLD OUT ***
SPHT / EPSL
Ceramic Capacitors (cont'd)
(CFC) SPHT2203MA
0.02 µF, 15kv, Low profile design. 3-1/8" diameter, 7/8" high. #10 screw terminals.
*** SOLD OUT ***
HEC Ceramic Capacitor
1000pF / 12kV / 20%
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(CFC) SPHT1102MA
HEC Ceramic Capacitor 1000pF @ 12kV, 20%, 10-32 Threaded terminal. 5-1/2"DIA x 1-1/8"H
$1,200 each
Ceramic Doorknob
5 pF - 30 kv
(CFC) TDK-5-30K
Ceramic doorknob capacitor. 5 pF, 30 kv, 1.5 amps. 1/2" diameter, axial leads.
$8 each - $7(6+), $6 (20+)
Erie Uncased Doorknob
700 pF - 10 kv
(CFC) 3915-700-10
Erie uncased doorknob capacitor. 700 pF, 10 kv, 3/4" diameter, axial leads. Alt P/N: 3915AD300X7S701AA.
$6 each - $5 (10+)