ISL9K18120G3

Description：DIODE ARR AVAL 1200V 18A TO247-3
Series：Stealth™

SKU:10c3dc5b359c Category: Diode Arrays Brand: onsemi

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Product introduction

ISL9K18120G3 is listed in the Diode Arrays range at ChipApex. The manufacturer field lists onsemi. Its product description is DIODE ARR AVAL 1200V 18A TO247-3. Review the specifications below when checking this part for your BOM.

Diode Arrays specifications for ISL9K18120G3

Description：DIODE ARR AVAL 1200V 18A TO247-3
Series：Stealth™
Mfr：onsemi
Package：Tube
Diode Configuration：1 Pair Common Cathode
Technology：Avalanche
Voltage - DC Reverse (Vr) (Max)：1200 V
Current - Average Rectified (Io) (per Diode)：18A
Voltage - Forward (Vf) (Max) @ If：3.3 V @ 18 A
Speed：Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr)：70 ns
Current - Reverse Leakage @ Vr：100 µA @ 1200 V
Operating Temperature - Junction：-55°C ~ 150°C
Mounting Type：Through Hole
Package / Case：TO-247-3
Supplier Device Package：TO-247-3
Grade：-
Qualification：-

Diode Arrays datasheet and documents for ISL9K18120G3

ISL9K18120G3

Diode Arrays Overview

The ISL9K18120G3 is a Stealth dual diode rated for 18A and 1200V. It features fast recovery with trr < 45ns and soft recovery characteristics (tb/ta > 5.0). The device operates up to 150°C and is avalanche energy rated at 20mJ. Packaged in TO-247, it provides two independent legs with a total average forward current of 36A.

Diode Arrays Feature Summary

Soft reverse recovery minimizes ringing and reduces snubber requirements
Fast recovery time reduces switching losses in transistors
Avalanche energy rated for robust operation under transient conditions

Diode Arrays Applications

Switch Mode Power Supplies
Hard Switched PFC Boost Diode
UPS Free Wheeling Diode
Motor Drive FWD
Snubber Diode

Diode Arrays Procurement Notes

Verify the datasheet revision matches Rev. A. Confirm the manufacturer origin as Fairchild Semiconductor or ON Semiconductor. Ensure the package marking K18120G3 corresponds to the specified TO-247 form factor. Check for lead-free compliance status if required by assembly specifications.

Diode Arrays Selection Notes

Select this component for high-frequency hard-switched applications requiring low loss. The dual configuration supports free-wheeling or boost roles. Consider pairing with 1200V NPT IGBTs for optimized power density and cost efficiency in designs demanding soft recovery performance.

Diode Arrays Part Context

This part belongs to the Stealth family of diodes, formerly developmental type TA49414. It is designed for general purpose power switching where low reverse recovery current and short tail phase are critical for system efficiency.