STEF12EPUR eFuses and hot-swap ICs by STMicroelectronics

Electronic fuse for 12 V line

Status: Active
Series: STEF12E
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

The STEF12E is an integrated electronic fuse optimized for monitoring output current and input voltage. Connected in series to a 12 V rail, it is capable of protecting the electronic circuitry on its output from overcurrent and overvoltage. The device has a controlled delay and turn-on time. When an overload condition occurs, the STEF12E limits the output current to a predefined safe value. If the anomalous overload condition persists it goes into an open state, disconnecting the load from the power supply. If a continuous short-circuit is present on the board, when power is re-applied the E-fuse initially limits the output current to a safe value and then again goes into an open state. The device is equipped with a thermal protection circuit. The intervention of the thermal protection is signalled to the board monitoring circuits through a signal on the Fault pin. Unlike the mechanical fuses, which must be physically replaced after a single event, the Efuse does not degrade in its performance after short-circuit/thermal protection interventions and it is reset either by recycling the supply voltage or using the Enable pin. The companion chip for the 5 V power rails is also available with part number STEF05.

Prices starting from US$0.46


Distributor Starting From Stock
Logo for Future Electronics Future Electronics US$0.46
379
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Logo for Avnet Silica Avnet Silica -
3,000
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Logo for Newark Electronics Newark Electronics US$0.73
-
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Logo for Avnet America Avnet America US$0.53
-
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Logo for element14 element14 US$0.53
-
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Logo for EBV Elektronik EBV Elektronik -
-
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Features

Continuous current typ. 3.6 A
N-channel on-resistance typ. 45 mΩ
Enable/fault functions
Output clamp voltage typ. 15 V
Undervoltage lockout
Short-circuit limit
Overload current limit
Controlled output voltage ramp
Thermal latch typ. 165 °C
Uses tiny capacitors
Operating junction temp. -40 °C to 125 °C
Available in DFN10 (3x3 mm) package

Alternative Descriptions

IC Electronic Fuse 12V 10DFN | Future Electronics
Circuit Protection Misc Electronic Fuse for 12V Line | Avnet Silica
Electronic Fuse, 18V, -40 To 125Deg C Rohs Compliant: Yes |Stmicroelectronics STEF12EPUR | Newark Electronics
ELECTRONIC FUSE, 18V, -40 TO 125DEG C | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a STEF12EPUR?

Additional datasheets, footprints and schematics for STEF12EPUR are listed on our Part Details page. You can also find images and similar parts to STEF12EPUR on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for STEF12EPUR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view STEF12EPUR price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does STEF12EPUR fall under?

The STEF12EPUR is listed under Power Management > eFuses and hot-swap ICs > E-fuses.

Can I view similar or alternative parts?

You can view similar parts to STEF12EPUR when available in the E-fuses range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the STEF12EPUR you can contact the distributor directly for product support, shipping queries etc.

Is the STEF12EPUR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for STEF12EPUR have stock available?

Authorised distributors including Future Electronics, Avnet Silica, Newark Electronics, Avnet America and element14 have stock available or on a lead time for STEF12EPUR.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for STEF12EPUR often in real-time on the comparison pages.

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