GW Instek GSM-20H10 | Precision Source Measure Unit
Captures I-V curves, low currents and resistance changes under controlled stimulus, accelerating component testing, result evaluation and approval.
- ✓ Four-quadrant operation up to 22 W
- ✓ ±21 V/±1.05 A or ±210 V/±105 mA
- ✓ up to 0.012% basic measurement accuracy
Programmable Precision DC Source Measure Unit
GW Instek GSM-20H10: Source and Measurement in One Instrument
The GW Instek GSM-20H10 combines a programmable DC voltage and current source with an integrated 6½-digit digital multimeter.
As a Source Measure Unit (SMU), it applies defined voltage or current levels while simultaneously measuring voltage, current, or resistance at the DUT.
Typical applications include I-V characterization of semiconductors, passive components, organic materials, nanomaterials, and lighting components.
Four-Quadrant Operation for Characterization and Battery Testing
In four-quadrant operation, the GW Instek GSM-20H10 supplies power to the DUT or absorbs power and dissipates it internally. This supports I-V characterization as well as battery charge and discharge testing. Its two operating ranges provide either higher current at lower voltage or higher voltage at lower current.
Configure Measurement Sequences for the DUT
Source Delay Measure delays measurement after a voltage or current change until the DUT has stabilized. The GSM-20H10 then acquires the measurement value.
Linear and logarithmic sweeps, stored source values, and user-defined sequences are available for characteristic measurements. Each sequence can contain up to 2,500 source points.
The GSM-20H10 supports 2-, 4-, and 6-wire resistance measurements. For low-resistance measurements, the 4-Wire Measurement reduces the effect of lead resistance.
Evaluate Limits and Integrate into Test Systems
Limit tests automatically classify measurement values as PASS or FAIL. OVP and OTP monitor the output voltage and instrument temperature, while the OVP threshold is user-adjustable.
SCPI, RS-232, USBTMC, and LAN support computer-controlled operation; GPIB is optional.
The instrument is designed for source-measure sequences and component characterization, not for conventional power-supply tasks or high-power electronic load testing.
Alternative Products
For applications requiring multiple synchronized channels or higher power, the ITECH IT2700 provides modular source, load, and measurement functions. For DC testing with up to eight modules, integrated measurement, and data logging, consider the ITECH IT2705 DC Power Analyzer.
Related Product Categories
SMU / Source Measure Units | Battery Measurement Technology | DMM / Digital Multimeters
Is the GSM-20H10 Right for Your Characterization Task?
Planning I-V, resistance, or battery tests? We review the voltage and current range, wiring method, sequence requirements, and interfaces for your DUT.
Specifications
| Maximum Output Power | 22 W |
|---|---|
| Output Range | ±21 V at ±1.05 A |
| Output Range | ±210 V at ±105 mA |
| Sequence Output | linear and logarithmic setpoint sequences, stored source values (SRC-MEM), and user-defined sequences with up to 2,500 points |
| Protection Functions | adjustable overvoltage protection (OVP) and overtemperature protection (OTP) |
| Basic Measurement Accuracy | 0.012% |
| Measurement Speed | adjustable from 0.01 to 10 PLC |
| Operating Mode | four-quadrant operation |
| Measurement Start Delay | 0 to 9,999.999 s (Source Delay Measure, SDM) |
| Resistance Measurement | 2-, 4-, and 6-wire measurement |
| Display Resolution | 3½, 4½, 5½, or 6½ digits |
| Limit Tests | three PASS/FAIL tests with a total of eleven memory sets |
| Calculation Functions | power, offset compensation for resistance measurements, voltage coefficient, varistor alpha, and percentage deviation |
| Display | 4.3-inch TFT LCD |
| Controls | function keys and numeric keypad |
| Real-Time Clock | integrated |
| Interfaces | RS-232, USBTMC, and LAN; GPIB optional |
Options & Accessories
| SM-01 | Digital I/O Adapter, Convert DB15 to DB9 + 8-pin micro-DIN |
|---|---|
| SM-02 | Digital I/O Adapter, Convert DB15 to DB37 + 8-pin micro-DIN |
| GTL-246 | USB Cable (USB 2.0 A-B Type, approx.. 1200mm) |
| GTL-258 | GPIB Cable (25 pin Micro-D Connector) |
Scope of Delivery
| 1 x GSM-20H10 |
| 2 x Alligator Clip |
| 1 x user manual (+CD) |
| 1 x GTL-207A test lead |
Videos
Links & Downloads
Available Documents (Subject to Change)
Supplier
Founded in 1975, Good Will Instrument Co., Ltd was the first professional manufacturer in Taiwan specializing in electrical test & measurement instruments. GW Instek began as a manufacturer of power supplies and quickly expanded into the development of high precision electronic test and measurement instruments.
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