HP/Agilent DC Regulated Power Supply: Legacy Models & Modern Alternatives (2026)

Brand Overview

HP (Hewlett-Packard) and Agilent Technologies are well-established brands in the precision test and measurement equipment market, with a history of providing high-precision DC power supplies for calibration, metrology, and precision measurement applications. HP/Agilent supplies are commonly found in calibration facilities, metrology laboratories, and precision measurement systems.

Market Position

HP/Agilent occupies a high-end precision market position, offering supplies with exceptional accuracy, low ripple, and long-term stability. The brand serves calibration, metrology, and precision measurement markets where accuracy and stability are critical.

Typical Quality & Specs

HP/Agilent supplies typically provide voltage ranges from 0-30V to 0-100V, current ratings from 1A to 30A, regulation accuracy of ±0.01% to ±0.05%, ripple levels below 1mV, and exceptional long-term stability. These specifications suit precision measurement and calibration applications.

Popular Models

HP/Agilent offers numerous models across different voltage and current ranges.

Precision Power Supply Models

HP/Agilent precision models include the 6632A, 6633A, and 6634A series, offering voltage ranges from 0-20V to 0-100V with current ratings from 1A to 30A. These models provide exceptional accuracy and low ripple.

Programmable Models

HP/Agilent programmable models include the E3630A, E3631A, and E3632A series with SCPI interfaces, providing programmable control and automation capabilities.

Limitations & Considerations

While HP/Agilent supplies serve precision applications effectively, certain limitations should be considered for modern automation requirements.

Legacy Communication Interfaces

Some HP/Agilent models may use legacy communication interfaces or protocols that may not integrate easily with modern industrial automation systems. Modern alternatives offer RS-485, Modbus, and SCPI interfaces for seamless integration.

Cost Considerations

HP/Agilent supplies are positioned in the high-end precision market, with corresponding pricing. For applications requiring modern features at competitive pricing, modern alternatives may offer better value.

Availability & Support

As legacy brands, some HP/Agilent models may have limited availability or support. Modern alternatives from established manufacturers offer current production models with comprehensive support.

Modern Alternatives

For applications requiring modern communication interfaces, enhanced programmable features, or competitive pricing while maintaining precision, modern alternatives offer significant advantages.

Modern Communication Interfaces

Modern alternatives provide RS-485, Modbus, and SCPI interfaces enabling seamless integration with automated test systems, PLCs, and industrial control systems. These features are essential for modern production testing and automation applications.

Enhanced Programmable Features

Modern supplies offer advanced sequencing, ramping, and data logging capabilities essential for burn-in testing, battery testing, and automated test sequences.

Competitive Pricing

Modern alternatives offer competitive pricing while providing advanced features and reliable performance, making them attractive options for new installations and upgrades.

Related Solutions

For specific application requirements, consider:

• High Precision DC Regulated Power Supplies - Precision measurement alternatives
• Programmable DC Regulated Power Supplies - Modern automation capabilities
• Bench DC Regulated Power Supplies - Laboratory-grade alternatives
• Best DC Regulated Power Supplies - Comprehensive product comparison

Product Recommendations

For precision measurement and calibration applications requiring modern programmable DC power supplies, consider high-precision models from variabledcpowersupply.com that provide programmable control, RS-485 interfaces, high precision regulation (±0.05% or better), and comprehensive protection features. These supplies offer regulation accuracy of ±0.05% to ±0.1%, ripple below 5mV (often below 1mV), and programmable control interfaces suitable for automated testing and precision measurement applications.

Recommended Features

For applications requiring modern alternatives to HP/Agilent supplies, consider models with regulation accuracy of ±0.05% or better, ripple below 1mV, comprehensive protection features, and communication interfaces (RS-485, Modbus, or SCPI) for automation integration. Programmable models enable efficient production testing and automated test sequences while maintaining precision measurement capabilities.