Download Manuals, Datasheets, Software and more:


PSPL5500 Series DC Blocks

PSPL5500A, PSPL5501A, PSPL5508 Datasheet

The products on this datasheet are no longer being sold by Tektronix.
View Tektronix Encore for reconditioned test equipment.
Check support and warranty status for these products.

Read Online:

The PSPL5500 Series of DC Blocks is composed of extremely broadband, coaxial blocking capacitors. Due to the coaxial construction, excellent microwave and very fast rise time responses are achieved. The PSPL5508 has a -3 dB bandwidth in excess of 26 GHz and a rise time faster than 8 ps. Large capacitance values up to 2.2 μF are available that give -3 dB low frequency cutoffs as low as 0.7 kHz.

Key performance specifications
  • 0.7 kHz to > 26 GHz
  • 8 ps Risetime

Typical performance



All specifications apply to all models unless noted otherwise.

Parameter 1PSPL5500A PSPL5501A PSPL5508
Capacitance 0.02 μF 0.22 μF 2.2 μF
Tolerance 20 % -50, +80% -50, +80%
DC Voltage 50 V max. 50 V max. 16 V max.
Type inner inner inner
BW (-3 dB) guaranteed > 26 GHz
20 GHz min.
> 26 GHz
20 GHz min.
> 26 GHz
20 GHz min.
Low Freq -3 dB 80 kHz 7 kHz 0.7 kHz
Risetime 10 ps 10 ps < 8 ps
Insertion Loss See S21 plots < 0.5 dB max. 100 MHz to 2 GHz is guaranteed
Delay 155 ps, see S21 group delay plots for typical responses
Impedance 50 Ω
Return Loss See S11 plots for typical responses
Temp. Range -55 C to +125 C, operating and storage
Dimensions 37.1 mm x 12.7 mm x 12. 7mm sq. (1.46” x 0.5” x 0.5”) including connectors
Connectors SMA jack (f) & plug (m)
Warranty One Year

1Parameters listed are typical values. Max/min limits for capacitance, bandwidth and insertion loss are guaranteed.

Mechanical dimensions


Ordering information

50 V DC block, 80 kHz
50 V DC block, 7 kHz
16 V DC block