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DC Blocks
DC Block

A coaxial DC Block is used when DC isolation is required to protect sensitive RF system components like receivers or test equipment. Richardson RFPD provides three (3) types of coaxial DC Block: Inner, Outer, and Inner/Outer.

Inner DC Blocks have a capacitor in-series with the center conductor (of the coaxial connection), which prevents the flow of direct current (DC) and minimizes the flow of audio frequency current, but provides only minimum impedance to RF signals (up to the rated maximum frequency in GHz). Similarly, Outer DC Blocks have the capacitor in-series with the outer conductor (of the coaxial connection). The Inner/Outer models have capacitors in-series with both inner and outer conductors.

Applications for DC Block include ground loop elimination, signal source modulation leakage suppression, system signal-to-noise ratio improvement, test setup isolation and other situations where undesired DC or audio current need to be prevented from flowing between different sections of an RF system.

Specific attributes which are important in selecting the right DC Block for your application include the coaxial Connector Type (N, SMA, BNC, etc.); Maximum Frequency (in GHz); the rated Voltage (V); and the Block Type (Inner, Outer, or Inner/Outer).

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Found 45 Products that matched
Products
12
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 Part #Mftg Part #SupplierPart NamePriceAvailableData
Sheet
QuantityConnector TypeMaximum Frequency (GHz)Voltage (V)Block Type
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IsROHSCompliant
80378037API Technologies Corp - InmetDC Block 1+ $38.00
50+ $36.00
100+ $33.00
110
SMA18 200Inner
IsROHSCompliant
80388038API Technologies Corp - InmetDC Block 1+ $58.00
50+ $54.00
100+ $52.00
51
SMA18 200Outer
IsROHSCompliant
80398039API Technologies Corp - InmetDC Block 1+ $84.00
50+ $80.00
100+ $78.00
433
SMA18 200Inner/Outer
IsROHSCompliant
80468046API Technologies Corp - InmetDC Block 1+ $54.00
50+ $52.00
100+ $49.00
92
N18 200Inner
IsROHSCompliant
80488048API Technologies Corp - InmetDC Block 1+ $96.50
25+ $95.00
50+ $92.50
more..
124
N18 200Inner/Outer
IsROHSCompliant
8055H8055HAPI Technologies Corp - InmetDC Block 1+ $38.00
50+ $33.00
100+ $31.00
23
SMA18 200Inner
IsROHSCompliant
8060A8060AAPI Technologies Corp - InmetDC Block 1+ $98.00
50+ $94.00
100+ $90.00
3
2.9mm26.5 75Inner
IsROHSCompliant
8061-I8061API Technologies Corp - InmetDC Block 1+ $136.56
50+ $131.81
Request Quote for Lead Time
2.9mm26.5 200Outer
IsROHSCompliant
8062A8062AAPI Technologies Corp - InmetDC Block 1+ $189.00
25+ $183.38
50+ $177.75
more..
Request Quote for Lead Time
2.9mm26.5 200Inner/Outer
IsROHSCompliant
8072-I8072API Technologies Corp - InmetDC Block 1+ $96.50
25+ $95.00
50+ $92.50
more..
45
TNC18 200Inner
IsROHSCompliant
80808080API Technologies Corp - InmetDC Block 1+ $59.69
25+ $56.88
50+ $54.06
more..
Request Quote for Lead Time
BNC4 200Inner
IsROHSCompliant
8080-I8080API Technologies Corp - InmetDC Block 1+ $62.94
50+ $60.00
Request Quote for Lead Time
BNC4 200Inner
IsROHSCompliant
80828082API Technologies Corp - InmetDC Block 1+ $121.25
50+ $119.38
Request Quote for Lead Time
BNC4 200Inner/Outer
IsROHSCompliant
8141A8141AAPI Technologies Corp - InmetDC Block 1+ $201.88
Request Quote for Lead Time
SMA40 200Inner
IsROHSCompliant
8143A8143AAPI Technologies Corp - InmetDC Block 1+ $443.00
50+ $427.00
100+ $412.00
10
2.9mm40 200Inner/Outer
IsROHSCompliant
8146A-DC8146AAPI Technologies Corp - InmetDC Block 1+ $550.00
25+ $537.50
Request Quote for Lead Time
2.9 mm40 200Inner/Outer
IsROHSCompliant
81748174API Technologies Corp - InmetDC Block 1+ $40.00
50+ $37.00
100+ $35.00
24
F2 200Inner
IsROHSCompliant
81768176API Technologies Corp - InmetDC Block 1+ $90.00
50+ $87.50
Request Quote for Lead Time
F2 200Inner/Outer
IsROHSCompliant
81798179API Technologies Corp - InmetDC Block 1+ $688.75
50+ $653.13
Request Quote for Lead Time
2.4mm50 75Inner/Outer
IsROHSCompliant
81808180API Technologies Corp - InmetDC Block 1+ $510.00
10+ $435.00
Request Quote for Lead Time
2.4mm-2.9mm40 200Inner
IsROHSCompliant
8184-I8184API Technologies Corp - InmetDC Block 1+ $143.75
50+ $137.50
Request Quote for Lead Time
N4 200Inner
IsROHSCompliant
83028302API Technologies Corp - InmetDC Block 1+ $64.38
50+ $62.50
Request Quote for Lead Time
N-SMA18 200Inner
IsROHSCompliant
8302-I8302API Technologies Corp - InmetDC Block 1+ $64.38
50+ $62.50
Request Quote for Lead Time
N-SMA18 200Inner
IsROHSCompliant
83068306API Technologies Corp - InmetDC BlockQuote RequiredRequest Quote for Lead Time
2.4mm-2.9mm40 200Inner
IsROHSCompliant
8532-NI-HV8532-NI-HVAPI Technologies Corp - InmetDC Block 1+ $42.19
50+ $40.63
Request Quote for Lead Time
N18 950Inner
12
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