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Agilent E3631A Dc Power Supply. Triple Output: 0- +25v, 0-1a; 0- -25v, 0-1a; 0- 6v, 0-5a 80w.

Agilent E3631A
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DC power supply. Triple output: 0- +25V, 0-1A; 0- -25V, 0-1A; 0- 6V, 0-5A 80W.


  • 80W triple output
  • Low noise/excellent regulation
  • High accuracy and resolution
  • GPIB/RS-232 standard
  • Save and recall functions
  • Isolated 6V output
  • SCPI compatible


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Agilent E3631A Dc Power Supply. Triple Output: 0- +25v, 0-1a; 0- -25v, 0-1a; 0-

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Product Information

The Agilent E3631A 80-watt triple-output power supply provides three DC outputs: 0 to 6 V with a maximum current of 5A and 0 to 25V and 0 to -25V with a maximum current of 1.0A. An auto-tracking feature lets you use one voltage control to adjust the +25V and -25 V outputs simultaneously. The outputs track each other to within 1 percent, making it easy to adjust the power supply circuits requiring balanced voltages.

E3631A triple-output power supply
This famous 80-watt triple output supply offers three independent 0 to +6 V / 5A and 0 to ± 25V / 1A outputs. The 6V output is electrically isolated from the ± 25V supply to minimize any interference between circuits under tests. The ± 25V outputs can be set to track each other.

E363X: Power to the Bench
Agilent E3631A - E3634A power supplies are designed for bench automation in R&D design and QA verification. Even at value prices, these power supplies deliver great features and power. Their low noise and excellent regulation are essential for R&D engineers who need to evaluate assemblies or applications, and for test engineers who need to develop repair strategies for production.

Hybrid regulation techniques create a denser, lighter package and a smaller footprint—key considerations when bench space is at a premium. Front panel output connections enable ease-of-use, while GPIB and RS-232 interfaces make for a versatile power source.

Compare to Rigol DP1308A Similar quality and performance at a much lower price!

For a good lower cost alternative unit please see: Instek PST-3202

Agilent Instek
E3631A 6V @ 5A
25V @ 1A
25V @ 1A
PST-3202 6V @ 5A
30V @ 2A
30V @ 2A

What's In The Box

  • Users Guide
  • Service Guide
  • Product Reference CD
  • AC Power Cord


  • Every instrument and system we sell has a global warranty. Support is available for at least five years beyond the production life of the product.


E3631A/32A/33A/34A Programmable dc Power Supply Specifications

Model Number E3631A E3632A E3633A E3634A
1 2 3      
dc Output
Rating (0°C to 40°C)
0 to +6V,
0 to 5A
0 to +25V,
0 to 1A
0 to -25V, 0 to 1A 0 to 15V / 7A or 0 to 30V / 4A 0 to 8V / 20A or 0 to 20V / 10A 0 to 25V / 7A or 0 to 50V / 4A
Load Regulation1
±(% of output + offset)
<0.01% + 2mV
<0.01% + 250uA
Line Regulation
±(% of output + offset)
<0.01% + 2mV
<0.01% + 250uA
Ripple and Noise (20Hz to 20MHz)
Normal Mode Voltage <350uVrms / 2mVpp <350uVrms /
<500uVrms /
Normal Mode Current <2mArms <500uArms <2mArms
Common Mode Current <1.5uArms
Accuracy 12 Mos (25°C + 5°C), ± (% output + offset)
Voltage 0.1% + 5mV 0.05% + 20mV 0.05% + 10mV
Current 0.2% + 10mA 0.15% + 4mA 0.2% + 10mA
Voltage 0.1% + 5mV 0.05% + 10mV 0.05% + 5mV
Current 0.2% + 10mA 0.15% + 4mA 0.15% + 5mA
Program 0.5mV / 0.5mA 1.5mV / 0.1mA 0.5mV / 0.1mA 0.5mV / 1mA 1.5mV / 0.5mA
Readback 0.5mV / 0.5mA 1.5mV / 0.1mA 1mV / 0.5mA 1mV /1mA 3mV / 0.5mA
Meter 1mV / 1mA 10mV / 1mA 1mV / 1mA 1mV / 1mA (<0 A), 10mA (³10A)
Transient Response Less than 50 usec for output to recover to within 15mV following a change in output current from full load to half load or vice versa.
Command Processing Time2 <100 msec
Accuracy, ±(% output + offset) N/A 0.5% + 0.5V / 0.5% + 0.5A
Activation time N/A 1.5 msec, OVP ³3V / <10msec, OVP <3V and OCP
Temperature Coefficient per °C ±(% output + offset)
Voltage 0.01% + 2mV 0.01% + 3mV
Current 0.02% + 3mA 0.02% + 0.5mA 0.02% + 3mA
Stability, constant output & temperature ±(% of output + offset), 8 hrs
Voltage 0.03% + 1mV 0.02% + 2mV 0.02% + 1mV
Current 0.1% + 3mA 0.05% + 1mA 0.1% + 1mA
Remote Sense Max voltage in each load lead 1V 0.7V
Voltage Programming Speed, to within 1% of total excursion
  Full Load
  No Load

11 msec
10 msec

50 msec
45 msec

50 msec
20 msec

95 msec
45 msec

80 msec
100 msec
  Full Load
  No Load

13 msec
200 msec

20 msec
400 msec

45 msec
400 msec

30 msec
450 msec

30 msec
450 msec
AC Input (47 Hz - 63 Hz) 100Vac ±10% (Opt 0E9) / 115Vac ±10% (Std) / 230 ac ±10% (Opt 0E3)
Dimension/Net Weight 213 mm W x 133 mm H x 348 mm D / 8.2 kg (18 lbs) (8.4 x 5.2 x 13.7 in) 213 mm W x 133 mm H x 348 mm D (8.4 x 5.2 x 13.7 in) / 9.5 kg (21 lbs)
Product Regulation Certified to CSA 22.2 No. 231 (for E3631A), No. 1010.1 (for E3632A /33A /34A); conforms to IEC 1010-1; carries CE mark; complies with CISPR-11, Group 1, Class A


  1. Accuracy specifi cations are valid after a 1-hour warm-up and calibration at 25 ºC.
  2. Accuracy refers to readback over GPIB and RS-232 or front panel with respect to actual output.
  3. Maximum time for output to change after receipt of commands.

Agilent E3631A Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Power Supplies/DC Power Supplies Template

Voltage Output 1 What's This?Variable
Max Voltage Output 1 What's This?6 V
Min Voltage Output 1 What's This?0 V
Current Output 1 What's This?Variable
Max Current Output 1 What's This?5 A
Min Current Output 1 What's This?0 A
Voltage Output 2Variable
Max Voltage Output 2 What's This?25 V
Min Voltage Output 2 What's This?0 V
Current Output 2 What's This?Variable
Max Current Output 2 What's This?1 A
Min Current Output 2 What's This?0 A
Voltage Output 3Variable
Max Voltage Output 3 What's This?0 V
Min Voltage Output 3 What's This?-25 V
Current Output 3 What's This?Variable
Min Current Output 3 What's This?0 A
Max Current Output 3 What's This?1 A
Meter Type What's This?Digital
Constant current/voltageNo
Remote Sensing What's This?Yes

Test Equipment General Attributes

Unique FeaturesSingle and triple output
• 80 W to 200 W output power
• Dual range output
(except E3631A)
• Low noise and excellent
• Remote sensing
(except E3631A)
• Front and rear output
(E3633A/34A only)
• GPIB and RS-232 standard
• Save and recall functions
Warranty1 YEARS
Warranty DetailsReturn to Agilent Warranty- 1 Year
Additional Info/CommentsShipping Weight Included
Calibration IncludedFactory Calibration 
Power Supply Voltage120V 50/60 Hz
Data Logging What's This?No
Interfaces I/O Analog Output, GPIB, RS-232
StorageCompact Flash
Product Weight18 LBS
Product Height13.7 IN
Product Length8.4 IN
Product Width5.2 IN
Shipping Weight24 LBS
Country of OriginUnited States



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