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.

IF35328.R00

U553-4-5

InterFET

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Technical

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U553, U554, U555 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 U553, U554, and U555 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

U553; U554; U555

Through-Hole

TO-92-2L

Bulk

SMPU553; SMPU554; SMPU555

Surface Mount

SOT23

Bulk

SMPU553TR; SMPU554TR; SMPU555TR

7“ Tape and Reel: Max 3,000 Pieces

13” Tape and Reel: Max 9,000 Pieces

SOT23

Minimum 1,000 Pieces

Tape and Reel

U553COT; U554COT; U555COT

Chip Orientated Tray (COT Waffle Pack)

COT

400/Waffle Pack

U553CFT; U554CFT; U555CFT

Chip Face-up Tray (CFT Waffle Pack)

CFT

400/Waffle Pack

Product Summary

Parameters

U553 Min

U554 Min

U555 Min

Unit

VOP

Peak Operating Voltage

50

50

50

V

IF

Regulator Current

0.18

0.6

1.4

mA

VL

Limiting Voltage

0.75 (typ)

0.55 (typ)

0.75 (typ)

V

TO-18 Bottom View

3

2

1

Anode

Cathode

N/C