HP / Agilent 11899A Probe Power Supply

The HP/Agilent 11899A Probe Power Supply is a dedicated unit that delivers regulated DC power to active probes and compatible measurement accessories. It provides two independent probe power outputs, enabling stable and reliable operation across a range of precision measurement applications. The 11899A replicates the probe power functionality found on the front panels of Keysight spectrum, network, and lightwave component analyzers, making it an essential accessory for field measurements and bench-top testing configurations.

## Technical Specifications

**Power Outputs**
• +15 V / 130 mA
• –12.6 V / 45 mA

**Input Voltage Options**
The unit is available with four regional power input configurations: 100 V, 120 V, 220 V, or 240 V operation.

**Fuse Requirements**
• 100/120 V operation: IEC 127 5×20 mm, 0.315 A, 250 V (Agilent part 2110-0449)
• 220/240 V operation: IEC 127 5×20 mm, 0.16 A, 250 V (Agilent part 2110-0448)

Only specified fuses must be used; substitution is not permitted.

**Environmental Ratings**
Designed for Pollution Degree 2 per IEC 1010 and 664. Convection paths must remain unobstructed. Ambient temperature must be maintained at least 4 °C below the maximum rated operating temperature for every 100 watts of cabinet dissipation.

## Key Features

• Compact form factor: 27.5 mm width × 30.5 mm height × 4.9 mm depth
• Net weight: 0.255 kg; shipping weight: 1.49 kg
• Probe assembly length: 1245 mm
• Dual regulated DC outputs for multi-probe measurement setups

## Compatibility & Integration

The 11899A is compatible with the Agilent 85024A High Frequency Probe, Agilent 41800A Active Probe, and the Agilent 834XX family of lightwave sources and receivers. An optional extender cord (Agilent 10131B) enables increased probe-to-power-supply separation when required for measurement flexibility.