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.

IF35329.R00

U556-7

InterFET

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Technical

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U556, U557 Current Regulator Diode

Features

• InterFET N0016H Geometry

• Low Noise: 5 nV/√Hz Typical

• Low Capacitance: 2pF Typical

• RoHS Compliant

• SMT, TH, and Bare Die Package options.

Applications

• Current Regulation

• Current Limiting

• Biasing

Description

The 50V InterFET U556 and U557 JFET’s are

targeted for current regulation and limiting

applications. The TO-18 package is hermetically

sealed and suitable for military applications.

Ordering Information Custom Part and Binning Options Available

Part Number

Description

Case

Packaging

U556; U557

Through-Hole

TO-92-2L

Bulk

SMPU556; SMPU557

Surface Mount

SOT23

Bulk

SMPU556TR; SMPU557TR

7“ Tape and Reel: Max 3,000 Pieces

13” Tape and Reel: Max 9,000 Pieces

SOT23

Minimum 1,000 Pieces

Tape and Reel

U556COT; U557COT

Chip Orientated Tray (COT Waffle Pack)

COT

400/Waffle Pack

U556CFT; U557CFT

Chip Face-up Tray (CFT Waffle Pack)

CFT

400/Waffle Pack

Product Summary

Parameters

U556 Min

U557 Min

Unit

VOP

Peak Operating Voltage

50

50

V

IF

Regulator Current

2.4

3.6

mA

VL

Limiting Voltage

0.75 (typ)

1.5 (typ)

V

TO-18 Bottom View

3

2

1

Anode

Cathode

N/C