TISP4A270H3BJR-S

更新时间： 2024-02-18 11:37:50

品牌	Logo	应用领域
伯恩斯 - BOURNS		触发装置硅浪涌保护器光电二极管
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11页	231K
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TISP4A270H3BJR-S 数据手册

TISP4A270H3BJ

ASYMMETRICAL-BIDIRECTIONAL THYRISTOR SPD

TISP4A270H3BJ LCAS R_LINEProtector

Optimized LCAS R_LINEProtector

SMB Package (Top View)

TISP4A270H3BJ V_(BO)Derived from:

-Break Switch, SW1 & SW2, Ratings

-Ring Return Switch, SW3, Rating

-Ringing Access Switch, SW4, Rating

-Switch Isolation Ratings

-Battery Voltage Range of -40 V to -60 V

-Power Fault Conditions

MD4A270B

-Lightning Impulse Conditions

-LCAS Characteristic Temperature Range

Device Symbol and Circuit Application

TISP4A270H3BJ Designed for:

-Battery-Backed Ringing Circuits

SW1

Break

switch

'7581 LCAS

TISP4165H3

Voltage Swing ........................................... +148 V to -206 V

Allows .................103 V rms Ringing with -60 V Battery

Temperature Range .................................. -40 °C to +85 °C

TIP

T_LINE

T_BAT

F_GND

SW3

Ring

V_DRM

V_(BO)

Device

return

switch

SW2

Break

switch

V_BAT

+160

-222

+217

-270

‘4A270

R_LINE

R_BAT

V_DD

RING

Rated for International Surge Wave Shapes

I_PPSM

TISP4A270H3

SW4

Ringing

access

switch

LATCH

INPUT

D_GND

Wave Shape

Standard

2/10

GR-1089-CORE

ITU-T K.20/45/21

GR-1089-CORE

500

150

100

10/700

10/1000

T_RINGING

T_SD

R_RINGING

AI4BITAMA

............................................ UL Recognized Components

Description

The TISP4A270H3BJ is an asymmetrical-bidirectional thyristor surge protective device (SPD). It is designed to limit the peak voltages on the

R_LINE(Ring Line) terminal of ‘7581/2/3 LCAS (Line Card Access Switch) devices. The TISP4A270H3BJ must have the bar-indexed terminal 1 (G)

connected to the protective ground and terminal 2 (R) connected to the R_LINEterminal.

The TISP4A270H3BJ voltages are chosen to give R_LINEterminal protection for all LCAS switch conditions. The most potentially stressful

condition is low level power cross when the switches are closed. Under this condition, the TISP4A270H3BJ limits the voltage and

corresponding LCAS dissipation until the LCAS thermal trip operates and opens the switches.

Under open-circuit ringing conditions, the R_LINEterminal will have high peak voltages. For battery backed ringing, the R_LINEterminal will have a

larger peak negative voltage than positive, i.e. the peak voltages are asymmetric. The TISP4A270H3BJ has a similar voltage asymmetry which

will allow the maximum possible ringing voltage, while still giving protection. With a connected telephone line, the LCAS T_LINE(Tip Line)

terminal voltage levels will be less than 50 % of the open-circuit R_LINEterminal values. So the T_LINEterminal can be protected by a symmetrical-

bidirectional overvoltage protector of the TISP4xxxH3BJ series.

How to Order

For Standard

Termination Finish Termination Finish

Order As Order As

For Lead Free

Device

Package

Carrier

TISP4A270H3BJ

BJ (SMB/DO-214AA with J-Bend)

R (Embossed Tape Reeled)

TISP4A270H3BJR TISP4A270H3BJRS

*RoHS Directive 2002/95/EC Jan 27 2003 including Annex

APRIL 2002 - REVISED FEBRUARY 2005

Specifications are subject to change without notice.

Customers should verify actual device performance in their specific applications.

12 3 4 5 6 7...11

中文翻译

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TISP4A270H3BJR-S 替代型号

型号	品牌	替代类型	描述	数据表
TISP4A270H3BJR	BOURNS	功能相似	Silicon Surge Protector, 217V V(BO) Max, 60A, DO-214AA, PLASTIC, SMB02, 2 PIN

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