HL9405 Broadband Balun (50 GHz)

Effective 10/15/17, bandwidth (-3 dB) is now extended down to 500 kHz.

The HL9405 is a precision signal splitter and combiner that offers industry-leading amplitude and phase match from 500 kHz to 50 GHz at -3 dB.

This RoHS-compliant balun is suitable for use in 40+ Gbps communications systems, high-speed analog-to-digital conversion, frequency response testing for differential devices, and many other applications.

This product is also available in 67 GHz (HL9407), 40 GHz (HL9404), and 20 GHz (HL9402) connectorized variants, as well as a PCB-mountable device (HL9403).

Technical Specifications  PDF 

  • Bandwidth (at -3 dB): 500 kHz to 50 GHz
  • Amplitude match (typical): 
    • ± 0.1 dB to 30 GHz
    • ± 0.25 dB 30-50 GHz
  • Phase match: 
    • ± 4-6 degrees at 20 GHz, typical
    • ± 8-12 degrees at 40 GHz, typical
  • Insertion Loss: -6 dB
  • Connectors: >2.4 mm; 1x jack input, 2x jack output
  • RoHS compliant, assembled with lead-free solder

NOTE #1: If the DC voltage of the input or output is not zero, matched DC block capacitors are required.

NOTE #2 : To achieve maximum amplitude match to 50 GHz, our baluns are designed to require a pair of highly-accurate (<1 %) 50 ohm terminations.

Product Applications

  • Changing single-ended signals to differential in high-speed analog-to-digital converters
  • Generating differential data from single-ended sources
  • Combining differential signals into single-ended while minimizing harmonic distortion
  • Pulse inversion

Additional Resources

  • Installation Drawing PDF
  • S-Parameters  ZIP
    • Includes single-ended and mixed-mode parameters to 50 GHz

Please note the specific port assignments listed in the S-Parameters file.

Ordering and Shipping

Please see our current lead times for an estimated shipping date. 

Shipping charges will be calculated at time of purchase.

HL9405 Broadband Balun (50 GHz)
HL9405 Broadband Balun (50 GHz)HL9407 Amplitude MatchHL9405 Return Loss (RF In)HL9405 Return Loss (RF Out+)HL9405 Return Loss (RF Out+)HL9405 Mixed Mode ParametersHL9405 CMRRHL9405 VSWREye Diagram (10 Gbps, 7-bit) on HL9405 RF InEye Diagram (10 Gbps, 7-bit) on HL9405 RF Out+Eye Diagram (10 Gbps, 31-bit) on HL9405 RF Out+

Price: $3,295.00  |  Item #: HL9405

How to Buy

You can order through our website using with Visa, Mastercard, or American Express.

You can also request a written quotation.

Questions about this product?

Not sure this product fits your needs? Do you need something a little different? Please contact us and we'll help you figure it out.