Keysight Technologies
N3300 Series
DC Electronic Loads
Data Sheet
02 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
Increase your manufacturing test throughput
with fast electronic loads
– Increase test system throughput
– Lower cost of ownership
– Decrease system development time
– Increase system reliability
–
– Stable operation down to zero volts
– DC connection terminal for ATE applications
Increase Test Throughput
Today’s high volume manufacturing requires optimization of
test system throughput, to maximize production volume without
increasing floorspace. The N3300 Series electronic loads can help
you in a number of ways to achieve this goal.
Reduced command processing time:
Commands are processed more than 10 times faster than
previous electronic loads.
sequences:
“Lists” of downloaded command sequences can execute
independent of the computer, greatly reducing the electronic load
command processing time and computer interaction time during
product testing.
Programmable delay allows for either
simultaneous or sequential load changes:
This is the most multiple output DC power supplies, simulating
real-life loading patterns, with a minimum of programming
commands.
Buffer measurement data:
Voltage, current, and power measurements can be buffered for
later readback to the computer, reducing computer interaction.
Control measurement speed vs. accuracy:
Decrease the number of measurement samples to achieve
greater measurement speed, or increase the number of samples
to achieve higher measurement accuracy. You can optimize your
measurements for each test.
Control rising and falling slew rates separately:
Reduce rate of loading change when necessary for DUT
stability or to simulate real life conditions, but otherwise change
load values at maximum rate.
Present and Future Requirements
Most power supply and battery charger test systems designed
today need to test a variety of products and/or assemblies. In the
future, additional products or assemblies may be needed. A
flexible family of electronic loads makes present system design
and future growth much easier.
Test low voltage power supplies:
The N3300 Series electronic loads operate with full stability down
to zero volts. Many other electronic loads available today have
been found to become unstable in the operating region below
one volt. When designing power supply test platforms, the trend
towards lower voltage requirements should be taken into
account. Refer to the specification and supplemental
characteristic tables for details of lower voltage operating
characteristics.
Choose DC load connection method:
Automatic test systems need consistency and reliability. Option
UJ1 8 mm screw connectors provide a simple screw onto which
your wires, terminated with insulated ring terminals, may be
securely mounted. This optional connector is specifically
designed for test systems. Wires may exit the plastic cover in
any direction, and multiple wires may be placed on each screw
terminal for easy parallel load connections. Up to AWG 4 wire
may be used.
Applications which require repeated connections/disconnections
are better suited to the standard connector. The standard
connector accepts an unterminated wire, and may be
hand-tightened. This connector is specifically designed for bench
applications and short-term automated tests.
Standard DC connectors Option UJ1 8 mm screw
connectors
03 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
Design a system to test a variety of products:
This series consists of 2 mainframes and 6 modules. The N3300A mainframe is full rack
width. It has 6 slots. The N3301A mainframe is half rack width. It has 2 slots. Any
assortment of the 6 different modules can be configured into these mainframes, up to
the slot capacity. The N3302A (150 watts), N3303A (250 watts), N3307A (250 Watts) and
N3304A (300 watts) each require one slot. The N3305A (500 watts) and the N3306A (600
watts) each require 2 slots. The electronic load can be configured to supply exactly what
you need now, and this modular design also allows for easy future reconfiguration.
Test high current power supplies:
Electronic load modules can be operated in parallel to provide additional current sinking
capability.
Control the electronic load how you want to:
GPIB, RS232, and manual use of the front panel all provide complete control of these
electronic loads. There are also analog programming and monitoring ports for those
applications that utilize nonstandard interfaces, require custom waveforms, or utilize
process control signals. Custom waveforms can also be created by downloading a “List”
of load parameters. In addition, there is a built-in transient generator, which operates in
all modes.
Quickly create powerful and consistent software:
All Keysight Technologies, Inc. electronic loads use the SCPI (Standard Commands for
Programmable Instruments) command set. This makes learning the commands easy,
because they are the same format as all other SCPI instruments. The resulting code is
virtually self-documenting, and therefore easier to troubleshoot and modify in the future.
Plug-n-Play drivers are also available to help you to integrate the loads into your standard
software packages.
Make Measurements Easily and Accurately
The 16-bit voltage, current and power measurement system provides both accuracy and
convenience. The alternative is using a DMM (digital multimeter) and MUX (multiplexer)
along with a precision current shunt and a lot of extra wiring. Avoiding this complexity
increases system reliability and makes the system easier to design and support. Current
measurements in particular are more consistently accurate using the electronic load’s
internal system, because the wiring associated with an external precision current shunt
may pick up noise.
Measure with all load modules simultaneously:
Testing multiple output DC power supplies and DC to DC converters can be very time
consuming if each output must be tested sequentially. If measurements are being made
through a MUX using one DMM, this is what will happen. Using the built-in measurement
capabilities of the N3300 electronic loads, all outputs can be measured simultaneously.
Alternatively, multiple single output power sources can be tested simultaneously.
Measure voltage and current simultaneously:
The N3300 measurement system has individual but linked current and voltage
measurement systems. This means that voltage and current measurements are taken
exactly simultaneously, which gives a true picture of the power supply under test’s output
at a particular moment in time. Some other electronic loads which feature internal
measurement systems actually take current and voltage measurements sequentially, and
therefore do not give as accurate a picture of momentary power.
04 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
Table A-1 lists the specifications for the different load models. Specifications indicate warranted performance in the 25 °C ± 5 °C region
of the operating temperature range. Specifications apply to normal and transient modes unless otherwise noted.
N3302A N3303A N3304A N3304-J01
Special order option
N3305A N3306A N3307A
Input ratings
Current 0–30 A 0–10 A 0–60 A 0–60 A 0–60 A 0–120 A 0–30 A
Voltage 0–60 V 0–240 V 0–60 V 0–80 V 0–150 V 0–60 V 0–150 V
Maximum power @ 40 °C1150 W 250 W 300 W 300 W 500 W 600 W 250 W
Input characteristic
Operating contour Derated current detail
N3302A N3303A N3304A N3304-J01
Special order option
N3305A N3306A N3307A
2.0 V 30 A 10 A 60 A 60 A 60 A 120 A 30 A
1.5 V 22.5 A 7.5 A 45 A 45 A 45 A 90 A 22.5 A
1.0 V 15 A 5 A 30 A 30 A 30 A 60 A 15 A
0.5 V 7.5 A 2.5 A 15 A 15 A 15 A 30 A 7.5 A
0 V 0 A 0 A 0 A 0 A 0 A 0 A 0 A
1. Maximum continuous power available is derated linearly from 100% of maximum at 40 °C, to 75% of maximum at 55 °C.
Table A-1 states that maximum current is available down to 2 volts. Typically, however
under normal operating conditions, the load can sink the maximum
current down to the following voltages:
N3302A N3303A N3304A N3304-J01
Special order option
N3305A N3306A N3307A
1.2 V 1.2 V 1.2 V 1.2 V 1.4 V 1.4 V 1.4 V
Table A-1
05 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
N3302A N3303A N3304A N3304-J01
Special order option
N3305A N3306A N3307A
Constant current mode1
Low range/High range 3 A/30 A 1 A/10 A 6 A/60 A 6 A/60 A 6 A/60 A 12 A/120 A 3 A/30 A
Regulation 10 mA 8 mA 10 mA 10 mA 10 mA 10 mA 10 mA
Low range accuracy 0.1% + 5 mA 4 mA 7.5 mA 7.5 mA 7.5 mA 15 mA 7.5 mA
High range accuracy 0.1% + 10 mA 7.5 mA 15 mA 15 mA 15 mA 37.5 mA 15 mA
1
Low range/High range 6 V/60 V 24 V/240 V 6 V/60 V 8 V/80 V 15 V/150 V 6 V/60 V 15 V/150 V
Regulation 5 mV 10 mV 10 mV 10 mV 10 mV 20 mV 10 mV
Low range accuracy 0.1% + 3 mV 10 mV 3 mV 5 mV 10 mV 3 mV 10 mV
High range accuracy 0.1% + 8 mV 40 mV 8 mV 12 mV 20 mV 8 mV 20 mV
Constant resistance mode1
Range 1
(I > 10% of current rating)
0.067–4 Ω 0.2–48 Ω 0.033–2 Ω 0.033–2.6 Ω 0.033–5 Ω 0.017–1 Ω 0.067–10 Ω
Range 2
(I > 1% of current rating)
3.6–40 Ω 44–480 Ω 1.8–20 Ω 2.4–26 Ω 4.5–50 Ω 0.9–10 Ω 9–100 Ω
Range 3
(I > 0.1% of current rating)
36–400 Ω 440–4800 Ω 18–200 Ω 24–260 Ω 45–500 Ω 9–100 Ω 90–1000 Ω
Range 4
(I > 0.01% of current rating)
360–
2000 Ω
4400–
12000 Ω
180–
2000 Ω
240–
2600 Ω
450–
2500 Ω
90–
1000 Ω
900–
2500 Ω
Current measurement1
Low range/High range 3 A/30 A 1 A/10 A 6 A/60 A 6 A/60 A 6 A/60 A 12 A/120 A 3 A/30 A
Low range accuracy20.05% + 3 mA 2.5 mA 5 mA 5 mA 5 mA 10 mA 3 mA
High range accuracy20.05% + 6 mA 5 mA 10 mA 10 mA 10 mA 20 mA 6 mA
Voltage measurement1
Low range/High range 6 V/60 V 24 V/240 V 6 V/60 V 8 V/80 V 15 V/150 V 6 V/60 V 15 V/150 V
Low range accuracy 0.05% + 3 mV 10 mV 3 mV 5 mV 8 mV 3 mV 8 mV
High range accuracy 0.05% + 8 mV 20 mV 8 mV 12 mV 16 mV 8 mV 16 mV
1
Accuracy 0.1% + 0.4 W 1.2 W 0.6 W 0.8 W 1.6 W 1.3 W 0.9 W
1.
2.
Table A-1
06 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
N3302A N3303A N3304A N3304A-J01 Special
order option
N3305A N3306A N3307A
Programming resolution
Constant current mode 0.05/0.5 mA 0.02/0.2 mA 0.1/1 mA 0.1/1 mA 0.1/1 mA 0.2/2 mA 0.05/0.5 mA
Constant voltage mode 0.1/1 mV 0.4/4 mV 0.1/1 mV 0.135/1.35 mV 0.25/2.5 mV 0.1/1 mV 0.25/2.5 mV
Constant resistance mode 0.07/0.7/7/
70 mΩ
0.82/8.2/
82 mΩ
0.035/0.35/
3.5/35 mΩ
0.05/0.5/5/
50 mΩ
0.085/0.85/
8.5/ 85 mΩ
0.0175/0.175/
1.75/17.5 mΩ
0.17/1.7/
17/170 mΩ
Readback resolution
Current 0.05/0.5 mA 0.02/0.2 mA 0.1/1 mA 0.1/1 mA 0.1/1 mA 0.2/2 mA 0.05/0.5 mA
Voltage 0.1/1 mV 0.4/4 mV 0.1/1 mV 0.135/1.35 mV 0.25/2.5 mV 0.1/1 mV 0.25/2.5 mV
1
Current
ranges
Slow band 500–25 kA/s 167–8330 A/s 1 k–50 kA/s 1 k–50 kA/s 1 k–50 kA/s 2–100 kA/s 500–25 kA/s
Fast band ≥3 V 50 k–2.5 MA/s 16.7 k–833 kA/s 100 k–5 MA/s 100 k–5 MA/s 100 k–5 MA/s 200 k–10 MA/s 50 k–2.5 MA/s
Fast band <3 V 50 k–250 kA/s 16.7 k–83.3 kA/s 100 k–500 kA/s 100 k–500 kA/s 100 k–500 kA/s 200 k–1 MA/s 50 k–250 kA/s
Voltage
ranges
Slow band 1 k–50 kV/s 4 k–200 kV/s 1 k–50 kV/s 1.33 k–66.6 kV/s 2.5 k–125 kV/s 1 k–50 kV/s 2.5 k–125 kV/s
Fast band ≥3 V 100 k–
500 kV/s
400 k–
2 MV/s
100 k–
500 kV/s
133 k–
666 kV/s
250 k–
1.25 MV/s
100 k–
500 kV/s
250 k–
1.25 MV/s
Fast band <3 V 100 k–50 kV/s 400 k–200 kV/s 100 k–50 kV/s 133 k–66.6 kV/s 250 k–125 kV/s 100 k–50 kV/s 250 k–125 kV/s
Resistance
range 1
Slow band 44–1125 Ω/s 540–13.5 kΩ/s 22–560 Ω/s 30–745 Ω/s 55–1400 Ω/s 11–280 Ω/s 110–2800 Ω/s
Fast band ≥3 V 2250–34 kΩ/s 27 k–408 kΩ/s 1120–17 kΩ/s 1500–22.6 kΩ/s 2800–42.5 kΩ/s 560–8.5 kΩ/s 5600–85 kΩ/s
Fast band <3 V 2250–3.4 kΩ/s 27 k–40.8 kΩ/s 1120–1.7 kΩ/s 1500–2.26 kΩ/s 2800–4.25 kΩ/s 560–850 Ω/s 5600–8.5 kΩ/s
Resistance
range 2
Slow band 440–11.25 kΩ/s 5.4 k–135 kΩ/s 220–5600 Ω/s 300–7450 Ω/s 550–14 kΩ/s 110–2800 Ω/s 1.1 k–28 kΩ/s
Fast band ≥3 V 22.5 k–
340 kΩ/s
270 k–
4.08 MΩ/s
11.2 k–
170 kΩ/s
15 k–
226 kΩ/s
28 k–
425 kΩ/s
5600–
85 kΩ/s
56 k–850 kΩ/s
Fast band <3 V 22.5 k–
34 kΩ/s
270 k–
408 kΩ/s
11.2 k–
17 kΩ/s
15 k–
22.6 kΩ/s
28 k–
42.5 kΩ/s
5600–
8.5 kΩ/s
56 k–
85 kΩ/s
Resistance
range 3
Slow band 4.4 k–
112.5 kΩ/s
54 k–
1.35 MΩ/s
2.2 k–
56 kΩ/s
3 k–
74.5 kΩ/s
5.5 k–
140 kΩ/s
1.1 k–
28 kΩ/s
11 k–
280 kΩ/s
Fast band ≥3 V 225 k–
3.4 MΩ/s
2.7 M–
40.8 MΩ/s
112 k–
1.7 MΩ/s
150 k–
2.26 MΩ/s
280 k–
4.25 MΩ/s
56 k–
850 kΩ/s
560 k–
8.5 MΩ/s
Fast band <3 V 225 k–
340 kΩ/s
2.7 M–
4.08 MΩ/s
112 k–
170 kΩ/s
150 k–
226 kΩ/s
280 k–
425 kΩ/s
56 k–
85 kΩ/s
560 k–
850 kΩ/s
Resistance
range 4
Slow band 44 k–
1.125 MΩ/s
540 k–
13.5 MΩ/s
22 k–
560 kΩ/s
30 k–
745 kΩ/s
55 k–
1.4 MΩ/s
11 k–
280 kΩ/s
110 k–
2.8 MΩ/s
Fast band ≥3 V 2.2 M–
34 MΩ/s
27 M–
408 MΩ/s
1.12 M–
17 MΩ/s
1.5 M–
22.6 MΩ/s
2.8 M–
42.5 MΩ/s
560 k–
8.5 MΩ/s
5.6 M–
85 MΩ/s
Fast band <3 V 2.25 M–
3.4 MΩ/s
27 M–
40.8 MΩ/s
1.12 M–
1.7 MΩ/s
1.5 M–
2.26 MΩ/s
2.8 M–
4.25 MΩ/s
560 k–
850 kΩ/s
5.6 M–
8.5 MΩ/s
Programmable short
Maximum 66 mΩ 200 mΩ. 33 mΩ 33 mΩ 33 mΩ 17 mΩ 33 mΩ
Typical 40 mΩ 100 mΩ 20 mΩ 20 mΩ 25 mΩ 12 mΩ 20 mΩ
Programmable open
≥ 20 kΩ ≥ 80 kΩ ≥ 20 kΩ ≥ 20 kΩ ≥ 20 kΩ ≥ 20 kΩ ≥ 80 kΩ
1. Slew rate bands are the ranges of programmable slew rates available. When you program a slew rate value outside the indicated bands, the electronic
slew rate itself.
value. Note that if you are using transient mode to generate a high frequency pulse train, a reduced slew rate might cause the load to never reach the
upper programmed value before beginning the transition to the lower programmed value. So even though the transient mode is still operational at lower
voltages, a fast pulse train with large transitions may not be achievable.
Supplemental Characteristics
Table A-2 lists the supplemental characteristics, which are not warranted but are descriptions of typical performance determined either by
design or type testing.
Table A-2
07 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
Supplemental Characteristics
N3302A N3303A N3304A/
N3304A-J01
N3305A N3306A N3307A
Ripple and noise (20 Hz–10 MHz)
Current (rms/peak to peak) 2 mA/
20 mA
1 mA/
10 mA
4 mA/
40 mA
4 mA/
40 mA
6 mA/
60 mA
2 mA/
20 mA
Voltage (rms) 5 mV rms 12 mV rms 6 mV rms210 mV rms 8 mV rms 10 mV rms
External analog programming
Voltage programming accuracy10.5% + 12 mV 48 mV 12 mV 30 mV 12 mV 30 mV
Current programming accuracy10.25% + 4.5 mA 1.5 mA 9 mA 9 mA 18 mA 4.5 mA
External monitor ports
Voltage monitor accuracy 0.25% + 12 mV 48 mV 12 mV 30 mV 12 mV 30 mV
Current monitor accuracy 0.1% + 4.5 mA 1.5 mA 9 mA 9 mA 18 mA 4.5 mA
1. Applies to all ranges.
2. Ripple and noise for N3304-J01 = 8 mV rms.
Table A-3
N3300A N3301A
Operating temperature range
0 °C to 55 °C 0 °C to 55 °C
Input ratings
Operating range 100–250 VAC; 48–63 Hz 100–250 VAC; 48–63 Hz
Input current 4.2 A @ 100–127 VAC;
2.2 A @ 200–250 VAC
2.3 A @ 100–250 VAC
Input VA 440 VA 230 VA
Inrush current 38 A 18 A @ 115 VAC; 36 A @ 230 VAC
Measurement time
1000 samples (default) 20 ms none
200 samples 10 ms < 6%
100 samples 9 ms < 10%
20 points 7 ms < 30%
< 20 points 7 ms > 30%
Table A-4 Measurement time
08 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
Ordering Information
N3300A & N3301A mainframes ship
with product reference CD-ROM
including: VXIplug&play drivers, user’s
guide, programming guide, and
application notes
Module options:
Opt. A6J: Certificate of calibration
Opt. UK6: Commercial calibration
Opt. UJ1: 8 mm screw terminal
connector
Chassis options:
Opt. 0L1: Printed user’s guide and
programming guide
Note: no service manual available for
this product
Accessories
1CM020A1
Rackmount flange kit 88.1 mm H (2U)
– four brackets (4U total); 1.75 inch
hole spacing
1CP012A1
Rackmount flange and handle kit
88.1 mm H (2U) – four brackets (4U
total); front handles
1CM001A1
Rackmount flange kit 177.0 mm H (4U)
– one bracket, one half-module
bracket
1CM034A1
Rackmount flange kit 177.0 mm H
(4U) – two flange brackets and lock
link kit for mounting two units side by
side. Equivalent to 1CM023A plus
p/n 5061-9694 lock link kit.
E3663AC
Support rails for Keysight rack
cabinets
1. Support rails or slides are required.
Supplemental
Characteristics for All
Model Numbers
Command processing time:
Average time for the output voltage to
change after getting a GPIB command
is 3 ms for discrete commands, 1 ms
for list commands
List dwell characteristics:
Range: 0 - 10 s
Resolution: 1 ms
Accuracy: 5 ms
Transient generator:
Frequency range: 0.25 Hz - 10 kHz
Frequency accuracy: 0.5%
Duty cycle range:
3 to 97% (0.25 Hz - 1 kHz);
6 to 94% (1 kHz - 10 kHz)
Duty cycle accuracy: 1%
Pulse width: 50 μs ± 1% to
4 seconds ± 1%
Analog programming
bandwidth:
10 kHz rms (-3 db frequency)
Analog programming
voltage:
Voltage: 0 - 10 V
Current: 0 - 10 V
Analog monitor ports:
Voltage: 0 - 10 V
Current: 0 - 10 V
Output terminals can be floated up to
± 300 VDC from chassis ground
Remote sensing:
5 V DC between sense and load input
Digital/Trigger inputs:
Vil = 0.9 V max at Iil = -1 mA
Vih - 3.15 V min (pull-up resistor on
input)
Digital/Trigger outputs:
Vol = 0.72 V max at Iol = 1 mA
Voh = 4.4 V min at Ioh = -20 μA
GPIB interface capabilities:
SH1, AH1, T6, L4, SR1, RL1 DT1, CD1
Software driver:
VXIplug&play
Regulatory compliance:
UL 61010B-1, IEC 61010-1/EN 61010-1,
CSA C22.2 No. 1010.1
Net weight:
N3300A: 13.2 kg (29 lb);
N3301A: 7.3 kg (16 lb);
N3302A, N3303A, N3304A,
N3304A-J08 or N3307A: 2.7 kg (6 lb);
N3305A or N3306A: 4.6 kg (10 lb)
Shipping weight:
N3300A: 17 kg (38 lb);
N3301A: 9.1 kg (20 lb)
N3302A, N3303A, N3304A,
N3304A-J08 or N3307A: 4.1 kg (9 lb)
N3305A or N3306A: 6.8 kg (15 lb)
Calibration interval:
One year for modules, mainframes do
not require calibration
Warranty:
One year
09 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
425.5mm
16.75"
624.8mm
24.6"
Top
177.8mm
7.0"
50.8mm
2.0"
190.5mm
7.5"
12.7mm
0.5"
Side
Rear
213.4mm
8.4"
624.8mm
24.6"
Top
177.8mm
7.0"
50.8mm
2.0"
190.5mm
7.5"
12.7mm
0.5"
Side
Rear
Keysight N3300A
Keysight N3301A
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10 | Keysight | N3300 Series DC Electronic Loads - Data Sheet
© Keysight Technologies, 2012 - 2014
Published in USA, August 2, 2014
5980-0232E
www.keysight.com
