Datasheet > WR12S05/50K

WR12S05/50K

更新时间： 2024-11-05 07:06:23

品牌	Logo	应用领域
其他 - ETC		光电二极管
页数	文件大小	规格书
4页	53K
描述
50 to 60 Watt Wide input DC/DC converters

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数据手册

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WR12S05/50K 数据手册

WR-K SERIES

Single, dual and triple output

• Low profile – 0.91 inch high

• Efficie ncie s to 84%

• UL approve d (Single outputs )

• 2:1 input range

• PCB or chas s is mounting

• Pi input filte r

• OVP on all outputs

WR-K Series devices are efficient, high power DC/DC converters with single,

dual and triple outputs supplying 50 to 60 Watts. Their low profile 3.5 x 5.5 x

0.91 inch package provides a power density of 3.4 Watts per cubic inch.

Efficiencies range from 78% to 84% . These converters feature unique dual

power stages utilising forward converters with MOSFET switching at 100kHz. A

Pi network input filter is also included. High efficiency is virtually constant down

to 30% output loading. Other features include output short circuit protection,

overvoltage protection, remote sensing of primary output, input surge protection

and remote on/off control. The 2:1 input voltage ranges are 9 to 18VDC, 18 to

36VDC and 36 to 72VDC. Typical applications for WR-K Series power supplies

include telecoms, distributed power systems and industrial automation.

[ 2 YEAR WARRANTY ]

SPECIFICATION ^{All specifications are typical at nominal input, full load at 25°C unless otherwise stated}

OUTPUT SPECIFICATIONS

INPUT SPECIFICATIONS CONTINUED

Voltage accuracy

±1.0%

±10%

Yes

Remote ON/OFF

Logic compatibility

E_c-ON

CMOS or open collector TTL

Voltage adjustability

Remote sense

Singles and duals, Note 7, 8

+5.5VDC min. or open-circuit

max. 1.8VDC

E_c-OFF

See Note 5, 6

Shutdown idle current

Input resistance

Control common

5mA

0VDC <Ein< 9VDC; 100kΩ

Referenced to input minus

Line regulation

HL-LL

Triples, –5V output

±0.5% , max.

±1% max.

GENERAL SPECIFICATIONS

Load regulation

Note 3, 11

FL-0.25% FL

±1.0% max

±2% max.

±5.0% max.

Efficiency

See table

Input/output

78% , min.

Dual output

Triples, –5V output

Isolation voltage

See Note 9

500VDC, min.

250VDC, min.

Input/case

Ripple and noise

5Hz to 20MHz

75mV pk-pk

10mV rms, max.

Switching frequency

Fixed

100kHz

UL478

Transient response

25% step load,

change

±1.0% error band

500µs recovery max.

Approvals and

standards

Safety

Temperature coefficient

±0.02% /°C, max.

Case material

Black coated aluminium with

non-conductive base

Overvoltage protection See Note 4

Short circuit protection All outputs

INPUT SPECIFICATIONS

OVP clamp on

all outputs

Weight

(without heatsink)

Single/dual

Triple

454g (16.03oz)

390g (13.77oz)

Continuous

automatic recovery

MTBF

See Note 10

840,000 hours

ENVIRONMENTAL SPECIFICATIONS

Input voltage range

12VDC

24VDC

48VDC

9 to 18VDC

18 to 36VDC

36 to 72VDC

Thermal performance

Operating ambient

Operating with

optional heatsink

–25°C to +55°C

–25°C to +71°C

Operating, case

Non-operating amb. -55°C to +105°C

Derating above

+85°C case

-25°C to +85°C

No load input current

Singles, duals at 12Vin

Triples at 12Vin

25mA

70mA

Singles, duals at 24 and 48Vin 20mA

Linearly to 0 Watts

at +100°C

Triples at 24 and 48Vin

45mA

Cooling

Free-air convection

cooled or conduction

Input filter

Pi network

Reverse voltage

protection

Note 12

Internal shunt diode

Use external fuse

Relative humidity

Altitude

Non-condensing

5% to 95% RH

Operating

Non operating

10,000 feet max.

40,000 feet max.

Surge protection

Transient clamp

Vibration, 5Hz to 500Hz Pressure

2.5G rms (approx.)

PAGE 1

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