Datasheet > QHS40ZB8

QHS40ZB8

更新时间： 2024-11-26 20:39:15

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数据手册

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QHS40ZB8 数据手册

QHS DC-DC Series Data Sheet

Features

•

RoHS lead-solder-exempt compliant

Low profile – 12.7 mm height

Input/output isolation: 1500 VDC, Basic

insulation

•

High efficiency - up to 92% at full load

Start-up into high capacitive load

Low conducted and radiated EMI

Output overcurrent protection

Output overvoltage protection

Back drive protection

Overtemperature protection

Remote sense

Applications

•

Distributed power architectures

Remote on/off (primary referenced), positive or

negative logic

Telecommunications equipment

LAN/WAN

•

Output voltage trim adjust

Data processing

UL1950 recognition, CSA 22.2 No. 950-95

certification, TUV IEC950

Description

The QHS is a series of high efficiency, high-density, single output dc-dc converters for onboard conversion of

standard telecom and datacom input voltages into isolated low voltage outputs in a through-hole mounting

package. The two-board construction provides a cool environment for control components and the integrated

metallic substrate PCB provides superior thermal management for power components resulting in enhanced

product reliability. A heat sink can be conveniently and effectively attached to the IMS base plate for operations in

elevated ambient conditions or where airflow is minimal.

Model Selection

Model

Input

Voltage

VDC

Input

Current, Max

ADC

Output

Voltage

Vout,

Output Rated

Current

I _rated,

Output

Ripple/Noise,

mV p-p

Typical

Efficiency @

I _rated,

VDC

ADC

QHS12ZH

QHS25ZG

QHS40ZE

QHS40ZD

QHS40ZB

QHS50ZA

QHS50ZY

36-75

4.5

4.3

4.5

3.3

2.5

2.7

2.3

12.0

5.0

3.3

2.5

1.8

1.5

1.2

150

100

Model numbers highlighted in yellow or shaded are not recommended for new designs.

DEC 09, 2004 revised to APR 12, 2006

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