Littelfuse SRDA3.3 Series Uživatelský manuál stáhnout pdf

Speciﬁ cations are subject to change without notice.

Please refer to www.littelfuse.com for current information.

TVS Diode Arrays (SPA

Diodes)

Revision: June 14, 2013

Lightning Surge Protection- SRDA3.3 Series

SRDA3.3

SRDA3.3 Series

Description

Applications

The SRDA3.3 integrates low capacitance rail-to-rail diodes

with an additional zener diode to protect I/O pins against

ESD and lightning induced surge events. This device can

safely absorb up to 35A per IEC61000-4-5 (tp=8/20s)

without performance degradation and a minimum

±30kV ESD per IEC61000-4-2 international standard. Its

low loading capacitance makes it ideal for high-speed

interfaceprotection.

Features

• Lightning protection,

IEC61000-4-5, 35A

(8/20µs)

• EFT, IEC61000-4-4, 50A

(5/50ns)

• ESD, IEC61000-4-2,

±30kV contact, ±30kV air

• Low clamping voltage

• Low leakage current

• SOIC-8 surface mount

package (JEDEC MS-012)

Functional Block Diagram

Pinout

Note: Pinout diagrams above shown as device footprint on circuit board.

SOIC-8 (Top View)

I/O 1

I/O 2

I/O 3

I/O 4

Ref 1

Ref 2

Life Support Note:

Not Intended for Use in Life Support or Life Saving Applications

The products shown herein are not designed for use in life sustaining or life saving

applications unless otherwise expressly indicated.

RoHS

GREEN

Application Example

SRDA3.3-4

T1/E1/T3/E3 Interface Protection

T1/E1/T3/E3

Transceiver

R Tip

R Ring

T Tip

T Ring

SRDA3.3 Series 8pF 35A Diode Array

• Tertiary (IC Side)

Protection:

- T1/E1/T3/E3

- HDSL/SDSL

- Ethernet

• RS232, RS485

• Video Line Protection

• Security Cameras

• Storage DVRs

• Network Equipment

• Instrumentation, Medical

Equipment

I/O 1

I/O 3

I/O 2

I/O 4

Ref 2

Ref 1

1 2 3 4

Shrnutí obsahu

Strany 1 - TVS Diode Arrays (SPA

Strany 2

Strany 3 - Power Derating Curve

Strany 4 - SRDA-3.3

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