130

Revised: February 22, 2011

© 2011 Littelfuse, Inc.

Specifications are subject to change without notice.

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

LCAS Protection

Asymmetrical Multiport Series - MS-013

Electrical Characteristics

Part

Number

Part Marking

V

= 5μA

V

S

@100V/μs

V

= 5μA

V

S

@100V/μs

V

I

S

mA

I

T

A

I

H

mA

VV

V

V

V

Pins 2-3, 5-6

Pins 1-2, 4-5

Pins 1-2, 2-3, 4-5, 5-6

A1220UA4Lxx

A1220UA4

100

130

180

220

4

800

2.2

120

A1225UA4Lxx

A1250UA4

100

130

230

290

4

800

2.2

120

A1220UC4Lxx

A1220UC4

100

130

180

220

4

800

2.2

120

A1225UC4Lxx

A1250UC4

100

130

230

290

4

800

2.2

120

1

2

3

designed to protect LCAS (Line Circuit Access Switch)

devices from damaging overvoltage transients.

The series provides a specialized asymmetrical dual port

overvoltage protection solution that enables equipment

to comply with various global requlatory standards.

Description

Features and Benefits

Low voltage overshoot

Low on-state voltage

Does not degrade with

use

Fails short circuit when

surged in excess of

ratings

Replaces four discrete

devices

Two-port protection

LCAS specific tip and

ring thresholds

Agency Approvals

Agency

Agency File Number

E133083

Schematic Symbol

Applicable Global Standards

TIA-968-A

TIA-968-B

ITU K.20/21 Enhanced

Level*

ITU K.20/21 Basic Level

GR 1089 Inter-building*

GR 1089 Intra-building

IEC 61000-4-5

YD/T 1082

YD/T 993

YD/T 950

*A-rated parts require series resistance

Pinout Designation

1

2

3

6

5

4

Notes:

- Absolute maximum ratings measured at T

- Devices are bi-directional.

- All electrical characteristics shown are defined from Tip to Ground (pin 1 to pin 2 and pin 6

to pin 5) and Ring to Ground (pin 3 to pin 2 and pin 4 to pin 5).

- XX = Part Number Suffix: ‘TP’ (Tube Pack) or ‘RP’ (Reel Pack).