Disclaimer: It is the Buyers responsibility for designing, validating and testing the end application under all field use cases and

extreme use conditions. Guaranteeing the application meets required standards, regulatory compliance, and all safety and

security requirements is the responsibility of the Buyer. These resources are subject to change without notice.

IF35096.R00

IF4520

InterFET

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Technical

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IF4520 N-Channel JFET

Features

• InterFET N0450S Geometry

• Low Noise: 1.0 nV/√Hz Typical

• Replacement for SNJ450113

• RoHS Compliant

• SMT, TH, and Bare Die Package options.

Applications

• Low R(ON) Switch

• Low-Noise, High Gain Amplifier

Description

The -40V InterFET IF4520 is a higher voltage

version of the low noise high gain IF4500 JFET.

The TO-72 package is hermetically sealed and

suitable for military applications.

Ordering Information Custom Part and Binning Options Available

Part Number

Description

Case

Packaging

IF4520T18

Through-Hole

TO-18

Bulk

IF4520ST3

Surface Mount

SOT23

Bulk

IF4520ST3TR

7“ Tape and Reel: Max 3,000 Pieces

13” Tape and Reel: Max 9,000 Pieces

SOT23

Minimum 1,000 Pieces

Tape and Reel

IF4520COT

Chip Orientated Tray (COT Waffle Pack)

COT

400/Waffle Pack

IF4520CFT

Chip Face-up Tray (CFT Waffle Pack)

CFT

400/Waffle Pack

Product Summary

Parameters

IF4520 Min

Unit

BVGSS

Gate to Source Breakdown Voltage

-40

V

IDSS

Drain to Source Saturation Current

8

mA

VGS(off)

Gate to Source Cutoff Voltage

-0.3

V

GFS

Forward Transconductance

20 (Typ)

mS

1

2

3

Source

Drain

Gate

SOT23 Top View

TO-18 Bottom View

3

2

1

Gate/Case

Source

Drain