PD554A - DC Blocking Power Splitter Combiner

4 Way, BNC, 698 - 2700 MHz, Pass/Block DC + 10 MHz

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Qty 1-9: $142.79
Qty 10-24: $126.98
Qty 25+:

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Product Overview

  • Passes 10 MHz BUC reference signal with exceptionally low 0.8 dB max insertion loss on pass port
  • Blocks 10 MHz by 50 dB min on block port
  • Passes DC one port for powering LNB/active antenna at 4A/50 VDC max
  • Equally splits full L-Band spectrum with exceptional specs
Insertion Loss
Isolation Input
698-2700 MHz 0.8 dB* 0.3 dB max 8° max 22 dB min 1.25 : 1 max 1.25 : 1 max
10 MHz Pass 0.4 dB max** N/A N/A 50 dB min 1.25 : 1 max 1.20 : 1 max
10 MHz Block 50 dB min N/A N/A 50 dB min 1.25 : 1 max 100 : 1 min
*Above 6.02 dB power split **Total insertion loss
Mechanical Specifications
Circuit Design Wilkinson; DC+10 MHz pass 1 port, DC+10 MHz block 1 port
Connectors BNC Female (Jack) 50 Ohm
Connector Body Brass, Tri-Alloy Plate
Connector Pin Phosphor Bronze, Gold Plate
Connector Insulator PTFE, Virgin Electrical Grade
Housing Aluminum, Clear Chem Film
Operating Temp -65°C to +85°C
Weight 386 Grams
4 Way Power Divider RF Input Ratings
Into Matched
Load VSWR's
In-Phase 180° Out-of-Phase
1.2 : 1 40 Watts 40 Watts
2.0 : 1 40 Watts 40 Watts
20 Watts 4 Watts
4 Way Power Combiner RF Input Ratings
Input Signals In-Phase 180° Out-of-Phase
Coherent 4 X 10 Watts 4 X 1 Watts
Non-Coherent 4 X 2 Watts

PD554A Features & Benefits


PD554A is a 4-way, BNC, L-Band power splitter combiner capable of bi-directional splitting and combining in transmit and receive modes. This passive Wilkinson microstrip unit equally splits the full L-band radio spectrum between two receivers or modems while passing DC and 10 MHz through one port and blocking DC and 10 MHz from the other port. This model is ideal for splitting L-band satellite signals between two receivers. The DC+10 MHz pass port allows one receiver to power an LNB and provides a path for the 10 MHz BUC reference signal necessary to maintain correct transmission uplink frequency. The DC+10 MHz block port prevents redundant feed from the other receiver. A unique feature of this splitter is low insertion loss of the 10 MHz BUC reference signal thru the pass port at less than 0.8 dB compared to conventional models passing 10 MHz with approximately 3.6 dB insertion loss. This remarkably low insertion loss is achieved by filtering the 10 MHz signal from the block port, resulting in more than 50 dB rejection. This conserves virtually all the 10 MHz signal for transmission through the pass port only. The DC pass port is rated 50VDC and 4A. All L-band applications in the frequency range from 698 to 2700 MHz are covered with best in class performance.


The heart of the unit is a precision designed and etched Wilkinson type microstrip circuit on a low loss, high frequency, dielectric substrate. Electrical performance is highlighted by 0.4 dB max insertion loss (above the 6.02 dB power split), 22 dB min isolation, 1.20:1 max input VSWR and 1.20:1 max output port VSWR. Equal power split and symmetry is displayed by 0.2 dB amplitude balance and 3 degrees phase balance. Narrow band RF performance over your frequency range may be even better. See 4-way power divider test sweeps for details.


Mechanical features include precision CNC, brass, 50 ohm BNC female coaxial connectors with tri alloy plating to insure tarnish resistance and low PIM operation. Connector pins are gold plated phosphor bronze for reliability and low contact resistance. Virgin electrical grade PTFE support insulators captivate the contact pins enabling trouble free coaxial connector mating. Long term operation and superior shielding is assured by the rugged CNC machined aluminum housing with clear chemical film finish. Secure mounting is provided by two 0.125" diameter (3.18 mm) through holes. RoHS construction includes no-lead solder and a finish free of hexavalent chromium.


Housing dimensions are 1.98" wide by 1.98" deep by 0.88" high (50.3 x 50.3 x 22.2 mm). The BNC female (jack) connectors extend 0.65" (16.5 mm) from the housing. Operating temperature range is from -65°C to +85°C. Weight is 136 grams. See 2 way L-band splitter outline drawing for more information.


The PD554A 4-way, TNC jack, DC+10 MHz blocking, L-band splitter is ideal for a wide range of wireless radio frequency microwave applications on both transmit and receive sides, ranging from amplifier sharing & receiver combining to antenna splitting, and is deployed world wide in networks encompassing 700 MHz Public Safety Band, 800 MHz cellular, GSM 850, 900, 1800 & 1900, PCS 1900, 1 GHz to 2 GHz L-Band, GPS, W-CDMA-3G, UMTS, TETRA, RFID, IEEE802.11b/g, 2.45 GHz ISM, Wi Fi and 2.3 GHz & 2.5 GHz WiMAX.

PD554A - 4 Way Power Divider Combiner Test Data

Close Test Data
Insertion Loss Test Sweep for PD554A
Insertion Loss Test Sweep for PD554A
Port-to-Port Isolation Test Sweep for PD554A
Port-to-Port Isolation Test Sweep for PD554A
Input Return Loss Test Sweep for PD554A
Input Return Loss Test Sweep for PD554A
Output Return Loss Test Sweep for PD554A
Output Return Loss Test Sweep for PD554A
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