HL9403 Broadband Drop-In Balun (20 GHz)


The HL9403 is a drop-in broadband balun with typical ± 0.25 dB amplitude match from 5 MHz to 20 GHz (-3 dB) and ± 2 degree phase match typical at 10 GHz.

This product is optimized for use in high-speed analog-to-digital conversion, differential signal generation, harmonic distortion minimization, and pulse inversion.

The HL9403 is designed to be installed onto printed circuit boards, offering unmatched on-board performance for aerospace, R&D, and other cutting-edge applications.

An SMA connector version of this balun is available as the HL9402, while the HL9404 offers an extended 40 GHz bandwidth.

SKU: HL9403 Category:

Technical Specifications

Datasheet PDF

Bandwidth (-3 dB) 5 MHz to 20 GHz
Amplitude Match ± 0.25 dB, typical
Phase Balance ± 2-4 degrees, typical at 20 GHz
Insertion Loss -6 dB
Interface Drop-in with micro-coax leads
ROHS compliance Yes, assembled with lead-free solder
Warranty 1 year, repair or replacement

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

NOTE #2: To achieve maximum amplitude match to 20 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

Data and Documentation

Ordering and Shipping

This product is built to order. Please contact us for lead time information.

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.