SDL1000X Series
A single-channel programmable DC electronic load rated 150 V / 30 A and up to 300 W. CC/CV/CR/CP plus dynamic mode to 25 kHz, down to 0.1 mV / 0.1 mA readback, with battery, CR-LED and auto-test functions for power, battery and LED-driver development.
Overview
The SDL1000X series is a single-channel programmable DC electronic load with a 3.5-inch TFT-LCD display, a clear user interface and excellent measurement performance. Every model is rated 150 V / 30 A, with maximum power of 200 W (SDL1020X) or 300 W (SDL1030X).
It offers four operating modes — constant current, voltage, resistance and power (CC / CV / CR / CP) — plus a dynamic transient mode up to 25 kHz in CC, with an adjustable current slew rate from 0.001 to 2.5 A/µs and voltage/current measurement up to 500 kHz. The high-resolution models read back down to 0.1 mV / 0.1 mA.
Built-in test routines — battery discharge, CR-LED, OCPT/OPPT auto-test, list and program sequencing, 4-wire remote sense and short-circuit testing — make it ideal for power-supply, battery, charger, LED-driver and automotive-electronics development.
The series comprises four models that differ only in power and readback resolution: SDL1020X / SDL1020X-E (200 W) and SDL1030X / SDL1030X-E (300 W); the "-E" models read back to 1 mV / 1 mA.
As the official Siglent distributor for Europe, we hold the SDL1000X in EU stock and back every unit with local warranty, optional ISO/DKD calibration and expert application support.
At a glance
- Type
- Programmable DC electronic load
- Models
- SDL1020X · 1020X-E · 1030X · 1030X-E
- Input rating
- 150 V · 30 A · 200 / 300 W
- Modes
- CC · CV · CR · CP + dynamic
- Display
- 3.5-inch TFT-LCD
- Availability
- EU stock
Key highlights
150 V / 30 A input
Single-channel input rated 150 V and 30 A for a wide range of sources.
Up to 300 W
200 W (SDL1020X) or 300 W (SDL1030X) of continuous power dissipation.
CC/CV/CR/CP + dynamic
Four static modes plus dynamic transient testing up to 25 kHz in CC.
0.1 mV / 0.1 mA readback
High-resolution measurement on the X models (1 mV / 1 mA on -E models).
Battery & CR-LED test
Dedicated battery-discharge and CR-LED modes, plus OCPT/OPPT auto-test.
RS232 · USB · LAN
Built-in remote interfaces with SCPI and a LabVIEW driver; USB-GPIB optional.
Core capabilities
Four modes + dynamic transient
Constant current, voltage, resistance and power (CC / CV / CR / CP), plus a dynamic mode (continuous, pulsed and toggled) up to 25 kHz in CC and 12.5 kHz in CP, with an adjustable current slew rate of 0.001–2.5 A/µs.
Battery, CR-LED & protection test
Battery-discharge testing (stop on voltage, capacity or time, up to 999 Ah / 24 h), a CR-LED mode for LED-driver testing, and OCPT / OPPT auto-test to validate a DUT's own protection.
List & program sequencing
Build complex load profiles with the list function (up to 100 steps, with per-step set-point, dwell and slew) and automate pass/fail sequences with the program function (up to 50 steps), saved to non-volatile memory.
4-wire sense, protection & analog
4-wire remote sense removes lead-drop error; OVP, OCP, OPP, OTP and reverse-voltage (LRV) protection keep tests safe; and external analog control (0–10 V) plus voltage/current monitoring integrate the load into automated setups.
Everything you need to integrate it
The SDL1000X is built for the automated bench. Standard RS232, USB and LAN interfaces give you full SCPI remote control and a LabVIEW driver out of the box, while the rear panel adds remote sense, external analog programming and voltage/current monitoring.
- Built-in RS232, USB (USBTMC) and LAN — USB-GPIB module optional
- 4-wire SENSE terminals for drop-free measurement at the DUT
- External analog control and 0–10 V voltage / current monitoring
- Free PC software with SCPI command set and LabVIEW driver
Models in the series
All 150 V / 30 A, single channel — choose power and readback resolution.
Specifications
Key specs across the SDL1000X series (SDL1020X / SDL1020X-E / SDL1030X / SDL1030X-E).
- Input voltage
- 0 – 150 V
- Input current
- 0 – 30 A (low range 0 – 5 A)
- Max power
- 200 W / 300 W
- Min operating voltage
- 0.15 V @ 5 A · 0.9 V @ 30 A
- Channels
- 1
- CR range
- 0.03 Ω – 10 kΩ
- Static modes
- CC · CV · CR · CP
- Dynamic CC
- to 25 kHz · cont./pulse/toggle
- Dynamic CP / CV
- 12.5 kHz / 0.5 Hz
- Current slew rate
- 0.001 – 2.5 A/µs
- Min rise time
- ≈ 10 µs
- V / I measure speed
- up to 500 kHz
- Voltage readback
- 0.1 mV (X) · 1 mV (-E)
- Current readback
- 0.1 mA (X) · 1 mA (-E)
- Power resolution
- 10 mW
- Resistance resolution
- 0.001 Ω
- Voltage accuracy
- ±(0.025% + 0.025% FS)
- Current accuracy
- ±(0.05% + 0.05% FS)
- Battery test
- stop on V / Ah / time · to 999 Ah
- LED test
- CR-LED mode
- Auto-test
- OCPT / OPPT
- List function
- up to 100 steps
- Program function
- up to 50 steps
- Other
- short-circuit · V rise/fall · trend
- Protection
- OVP · OCP · OPP · OTP · LRV
- Remote sense
- 4-wire
- External analog
- 0–10 V control & monitor
- Interfaces
- RS232 · USB · LAN · GPIB opt.
- Display
- 3.5-inch TFT-LCD
- Dimensions / weight
- 256 × 115 × 410 mm · 5.8 kg
Readback resolution of 0.1 mV / 0.1 mA applies to the SDL1020X / SDL1030X; the "-E" models read back to 1 mV / 1 mA. A 30 A test lead and a USB-GPIB adapter are optional accessories. Ask us for a configured quote. Full specifications in the datasheet below.
Software & control
Operate from the 3.5-inch display, or drive the load over RS232, USB or LAN for fully automated test.
EasySDL software
Free EasySDL PC software to control the load, run sequences and capture measurement and waveform-trend data.
SCPI & LabVIEW
Full SCPI command set over RS232 / USB / LAN with a LabVIEW driver; USB-GPIB module optional.
Related categories
Configure your SDL1000X
Tell us your power level (200 or 300 W), the readback resolution you need (0.1 mV/0.1 mA or 1 mV/1 mA) and any accessories — we'll quote the right SDL1020X, SDL1020X-E, SDL1030X or SDL1030X-E.
Frequently asked questions
Choosing and using the Siglent SDL1000X programmable DC electronic load.
What is a programmable DC electronic load used for?
An electronic load sinks a controlled current, voltage, resistance or power so you can test and characterise power supplies, batteries, chargers, LED drivers and other sources without building dummy loads. The SDL1000X adds dynamic, battery and auto-test functions for development and production.
What is the difference between the SDL1020X, SDL1020X-E, SDL1030X and SDL1030X-E?
All four are single-channel and rated 150 V / 30 A. They differ in power and readback resolution: the SDL1020X / SDL1020X-E are 200 W and the SDL1030X / SDL1030X-E are 300 W; the plain "X" models read back to 0.1 mV / 0.1 mA, while the "-E" models read back to 1 mV / 1 mA.
Which operating modes does the SDL1000X support?
It offers four static modes — constant current, voltage, resistance and power (CC / CV / CR / CP) — plus a dynamic transient mode (continuous, pulsed and toggled) up to 25 kHz in CC, with an adjustable current slew rate of 0.001–2.5 A/µs.
Can it test batteries and LED drivers?
Yes. A dedicated battery-discharge mode stops on voltage, capacity or time (up to 999 Ah / 24 h), and a CR-LED mode adds a breakover-voltage setting to emulate an LED for driver testing. OCPT and OPPT auto-tests validate a DUT's own protection.
How do I control the load remotely?
Every model has built-in RS232, USB (USBTMC) and LAN interfaces with a full SCPI command set, free PC software and a LabVIEW driver. A USB-GPIB module is available as an option. External analog control (0–10 V) is also supported.
Is it available with warranty and calibration in Europe?
Yes. As the official Siglent distributor for Europe (JRSE B.V., Helmond) we ship from EU stock with a 3-year warranty and optional ISO / DKD calibration, backed by local application support.
Specifications are based on the manufacturer's official datasheet and are provided for guidance only. While we take great care to keep this information accurate and up to date, specifications, options, availability and pricing are subject to change without notice, and errors or omissions may occur. The official Siglent datasheet remains the definitive reference — please contact us to confirm any detail before ordering.