RPA100H-RUW datasheet(7/11 Pages) RECOM

7 / 11 page

www.recom-power.com

REV.: 1/2018

PB-7

DC/DC Converter

Specifications (measured @ Ta = 25°C, nom. Vin (110V), full load and after warm-up unless otherwise stated)

RPA100H-RUW

Series

ENVIRONMENTAL

Parameter

Condition

Value

Operating Temperature Range

refer to derating graphs

-40°C to +97°C

Maximum Baseplate Temperature

+100°C

Temperature Coefficient

0.007%/°C

Thermal Impedance

refer to Rth tables

Operating Altitude

5000m

Operating Humidity

5%-95% RH

Pollution Degree (PD)

PD2

Fire protection on Railway Vehicles

refer to page PB-9

according to EN45545-2 standard

MTBF

according to Telcordia SR332 Issue 2 Method I, 25°C

1480 x 103 hours

continued on next page

-40 -20

100

120

Ambient Temperature [°C]

without PCB, fitted Heat-sink:

Natural Convection (0.1m/s)

with PCB and Heat-sink:

Natural Convection (0.1m/s)

0.2m/s

0.5m/s

0.8m/s

1.0m/s

1.5m/s

63.1

20.0

6.4

3.2

50.8

Thermal Impedance

airflow

[m/s]

Rth

[°C/W]

0.1

3.3

0.2

2.62

0.5

2.0

0.8

1.57

1.0

1.22

1.5

0.75

Iout = 50%

th = 3.3°C/W

DISS = 7.87W

ICmax = 100°C

Thermal Calculation Example

AMBmax

= T

ICmax - TOVER

= 100°C - 26°C = +

74°C

OVER

= Rth x PDiss = 3.3°C/W x 7.87W = +26°C

Notes:

Note9: Following calculations are made with RPA100H-11012SRUW/P.

Test PCB: Eurocard 160x100mm 105µm copper, double layer

Thermal Derating with Fan Cooling, Double Layer PCB and Heat-sink

Dimension Drawing Heat-sink (mm)

RPA100H-RUW Scheda tecnica(PDF) 7 Page - Recom International Power

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