927770-3 datasheet(23/260 Pages) TEC

23 / 260 page

Introduction

Timer Interconnection System

Catalog 889759-3

Revised 7-2011

All specifications subject to change. Consult TE Connectivity for latest specifications.

The contact body is responsible

for the electrical characteristics,

while the top spring ensures

that contact force is maintained

under critical circumstances

and over lifetime of the contact

system. Reduction in contact

force due to stress relaxation

at elevated temperature is thus

minimized.

In addition there are usually two

lances on the steel to spring.

These serve to lock the con-

tact securely into the housing.

Secondary locking of the

contact in the housing can be

achieved by means of the

steel top spring, which usually

takes the form of a box.

All versions of Timer contacts

can be combined easily in one

connector without renouncing

secondary locking device.

Application in connectors

which contacts by means of

swiveling is possible.

Tabs and receptacles can be

applied in both watertight and

non-watertight connectors.

AMP Timer connectors are

available as receptacle and

tab housings (free-hanging

coupling in a wiring harness)

or as receptacle housings and

multiple tabs (group connec-

tion). With the free-hanging

coupling type the housings,

with up to 100 contacts, are

then secured by means of a

separate locking device.

With multiway connectors the

single lever method is usually

employed (sequential insertion

distributed along an angled

path).

Using this method a single

lever plug on the receptacle

housing engages in one end

of the multiple tab housing.

The connector is then latched

up to the final position.

This system is relatively tolerant

as regards the positioning of

the contact tabs in the housing.

An additional advantage is

that the contact system is, to

a large degree, insensitive to

crooked insertion. Even when

the tabs are not straight the

contact geometry ensures firm

contact.

In order that the flat contact

system can be employed at

interfaces with signal currents

of medium strengths as well

as with load currents more

than 70 A.

The comprehensive range of

AMP Timer contacts are

extensively used in the auto-

motive industry.

Each contact consists of a flat

receptacle, which mates with

a flat tab. The receptacle has

two respective four contact

springs, which are independent

of each other. Two-piece

contacts with a steel top spring

are pre-dominantly.

This two-piece contact design

means that the electrical and

mechanical properties are

separated. One end of the

contact body is either crimped

to wire, or soldered to a printed

circuit board. The other end

of the contact body mates with

the matching tab.

For Decades the

Timer Interconnection

System has Proven its

Reliability in the

Automotive Industry

927770-3 Datasheet(PDF) 23 Page - TE Connectivity Ltd

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