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汽车继电器V23134J1052D642

  • 型号/规格:

    1393304-9

  • 品牌/商标:

    TYCO(泰科)

  • 额定线圈电压 (VDC):

    12

  • 端子电流类 ::

    >50A

  • 安装类型:

    插入式

  • 线圈电阻 (Ω):

    90

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  • 企业名:山东京北科通电子科技有限公司

    类型:经销商

    电话: 05347058298

    手机:18511092358

    联系人:陈先生

    QQ: QQ:2850389425

    邮箱:mark@tycelec.com

    地址:山东德州德州市三八东路东汇大厦1419

产品分类
商品信息

Typical Automotive Applications

Load Application examples Typical current curve

Resistive Loads - Heatings

(rear window heating, seat heating

glow plug, air/water preheating)

Capacitive Loads - Lamps

(front and rear beam, fog lights, flasher)

- Filter capacitors in electronic modules

(engine management module, ABS module)

Inductive Loads - Solenoids

(vales, clutches, relay coils)

- Motors and pumps

(power window, central lock, cooling fan)

Introduction

The range of applications can be classified into resistive loads,

capacitive loads and inductive loads. The current curve of resistive

loads is specified by the load voltage and load resistance.

Capacitive loads have a high inrush current and a low steady

current. Therefore lamps are counted to the capacitive loads,

because the cold filament has a significantly lower resistance,

than the hot filament. Inductive loads are characterized by an

exponential current increase and a remarkable switch off arc,

induced by the demagnetization of the magnetic circuit of the

load. Power supply relays (clamp relays) can switch or feed

a mixture of different loads.

The circuit design of resistive and capacitive loads is usually a

simple switch on and switch off. Motor load circuits are often

more complex. The most typical circuits are described hereafter.

Short-Circuit Brake

The short-circuit brake is used, wherever an electric motor must

be braked (e.g. wiper). The short-circuit brake transforms the

rotational energy of the motor into electrical energy. The shortcircuit

brake can be critical at higher load voltages. If the switchoff

arc does not extinguish during the transition time of the

movable contact, the arc creates a direct shortage of the power

source. Particularly in 24VDC systems, the resulting extremely

high arc current could cause almost instantly severe damage to

the contacts and could destroy the entire relay.

Fig. 1 Short-circuit brake

Motor-Reverse Circuit (H-Bridge)

The H-bridge is used to operate a motor in two directions

(e.g. door lock, steering lock, power window,

seat adjustment, etc.). The operation time is typically

very short compared to the thermal time constant of

the relay (e.g. door lock <1s, power window <10s).

This means, H-bridge relays must be designed for

high current-switching-capability, but not for high

current-carrying-capability. Higher load voltages can

be critical, due to possible short-circuit-arcs (see also

short-circuit brake).

Fig. 2 H-bridge

time

current

time

current

time

current

Solenoid

Motor

M

Ubatt

Relay

M

U

联系方式

企业名:山东京北科通电子科技有限公司

类型:经销商

电话: 05347058298

手机:18511092358

联系人:陈先生

QQ: QQ:2850389425

邮箱:mark@tycelec.com

地址:山东德州德州市三八东路东汇大厦1419

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