Agilent / Keysight 87422A Power Supply, 12 VDC, 15 VDC, 70 W

The Agilent/Keysight 87422A is a compact DC power supply engineered to deliver stable, low-ripple power to microwave system amplifiers and preamplifiers. It has multiple regulated output rails with integrated overvoltage and short-circuit protection, making it suitable for integration into laboratory benchtop setups or rack-mounted test configurations. The unit accepts universal AC input and includes a 2-meter DC output cable for direct connection to compatible RF and microwave instrumentation.

Technical Specifications

• AC Input: 90–250 VAC, 50/60 Hz


• Total Output Power: 90 W maximum


• DC Output Rails: - +15V DC at 4.0 A - −15V DC at 200 mA - +12V DC at 2.0 A - −12V DC at 200 mA


• Line Regulation: 0.1%


• Load Regulation: 1.0% (+15V rail, 20% to full load); 2.0% (+12V rail, 20% to full load)


• Output Ripple: 25 mV RMS maximum


• Output Noise: 2% peak-to-peak maximum


• Operating Temperature: 0° to +55° C at full load


• Storage Temperature: −40° to +70° C


• Weight: 0.9 kg

Key Features

• Current-limited short-circuit and overload protection with automatic recovery on fault removal


• Low-ripple design suitable for sensitive RF and microwave amplifier applications


• Overvoltage protection on all output rails


• Flexible mounting with user-supplied hardware; operates in any orientation


• Compact form factor for space-constrained system integration

Typical Applications

• Powering microwave system power amplifiers and preamplifier modules


• Test and measurement setups requiring multiple isolated DC rails


• RF instrumentation requiring clean, regulated DC supplies

Compatibility & Integration The 87422A directly supports Agilent/Keysight amplifier modules including the 83020A power amplifier and preamplifiers such as the 83006A, 83017A, 83018A, 83050A, and 83051A. It also powers the 83440C high-speed lightwave converter when used with the 83440-60009 adapter. Supplied 2-meter output cable enables straightforward system integration.