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For professionals (EU) | All data subject to change

Electronic Fuse for On-Wafer Measurements

AGIL eFuse2-300-10: Overcurrent Protection for On-Wafer Testing of Power Semiconductors

During on-wafer measurements on power semiconductors such as FETs or HBTs, a slipped probe can cause a high current. Incorrect contacting can have the same effect. This can damage the DUT, bias tee, connectors, and wafer probe.
The AGIL eFuse2 monitors the current in the DC bias line and is connected in series between the DC power supply and the DUT. If the current exceeds the set current limit, the electronic fuse interrupts the current flow in less than 300 ns.

Set the Current Limit and Remote-Control the eFuse via RS-232

The current limit can be set using a rotary push knob or via the RS-232 interface. For currents above 1 A, the current-limit setting accuracy is 5%. The current measured by the eFuse can also be read via the interface. The accuracy of the reported current value is approximately 5%. This makes the value suitable for current monitoring, but not for precision measurements.

Related Product Categories

Power Supplies / Sources | Probes

Would you like to reliably protect your wafer probes and DUTs from overcurrent?

We can help you select and integrate the eFuse2 for safe on-wafer and semiconductor testing – tailored to your specific measurement application.

Specifications

Product type high-speed electronic fuse
DC input voltage 0 to 300 VDC
Nominal current 10 A DC
Current limit setting 0 to 10 A DC
Turn-Off time < 300 ns
Internal resistance 50 mΩ
Voltage drop 500 mVDC at 10 A
Temperature coefficient 0.03 %/K
AC Mains voltage 98 to 127 VAC or 207 to 253 VAC, depending on device version
Mains frequency 47 to 63 Hz
Operation display, status indicator and rotary push knob
Interface RS-232
Connections safety sockets for input and output
Short-circuit immunity continuous at 0 to 40 °C
Ambient temperature 0 to 40 °C 0 bis 40 °C

Options & Accessories

AC mains voltage version 98 to 127 VAC or 207 to 253 VAC, factory-set to one voltage range

Scope of Delivery

eFuse 2 100-10 electronic fuse
AC power cord
Operating manual

Applications

Fast current shut-off protection of DUTs against excessive current
Probe protection reduced risk of damage caused by high stored energy
Protection with laboratory power supplies limiting energy from the power supply output capacitors
Research and development use in research laboratories of semiconductor manufacturers and universities
DC test setups protection device upstream of power supplies for applications up to 100 VDC and 10 A

Supplier

AGIL stands for Analog and Switched Industrial Power Electronics. The name of this small German specialist in custom power supply solutions says it all. bsw is the exclusive distributor of the efuse product family. The efuse is not a fuse in the conventional sense, but rather a high-speed electronic circuit that can disconnect the test probes used in on-wafer or semiconductor testing faster than a short circuit can damage the test probe and the device under test.