Datasheet
SAFETY AND CERTIFICATIONS
Certificate Type (Safety) Report Number Standard
Information Technology Equipment, General Requirements for Safety E224236 UL-60950-1, 1st Edition
Certificate Type (Environmental)
Condition
Standard / Criterion
Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
EN55022, Class B
ESD Immunity Test
±8kV Air Discharge,
±6kV Contact Discharge
IEC61000-4-2, Criteria B
RF Field Strengh Susceptibility Test 10V/m IEC61000-4-3, Criteria A
Electrical Fast Transient Test / Burst Immunity Text ±4kV Applied IEC61000-4-4, Criteria B
Surge Immunity Test ±4kV Applied IEC61000-4-5, Criteria B
Conducted Disturbance Susceptibility Test 10V rms IEC61000-4-6, Criteria A
Vibration 50-150Hz, along X, Y and Z EN60068-2-6
Thermal Cycling (complies with MIL-STD-810F) 12 cycles EN60068-2-14
Shock 5g / 30ms EN60068-2-27
DC/DC Converter
RPP-4
REV.: 3/2016 www.recom-power.com
Specifications (measured @ ta= 25°C, nominal input voltage, full load and after warm-up)
RPP20-2405SW
Series
EMC Filtering - Suggestions
+V
IN
C
1
D
1
UR
1
C
4
C
5
-V
IN
C
2
C
3
C
6
C
7
Load
L1
DUT
Soldering
Hand Soldering
Hand Soldering is the least preferred method because the amount of
solder applied, the time the soldering iron is held on the joint, the
temperature of the iron and the temperature of the solder joint are
variable.
The recommended hand soldering guideline is listed in Table 1. The
suggested soldering process must keep the power module’s internal
temperature below the critical temperature of 217°C continuously.
Wave Soldering
High temperature and long soldering time will result in IMC layer
increasing in thickness and thereby shorten the solder joint lifetime.
Therefore the peak temperature over 245°C is not suggested due
to the potential reliability risk of components under continuous high-
temperature. In the meanwhile, the soldering time of temperature
above 217°C should be less than 90 seconds. Please refer to the sol-
dering profile below for recommended temperature profile parameters.
Table 1 Hand-Soldering Guideline
Parameter
Single-side
Circuit Boad
Double-side
Circuit Board
Multi-layers
Circuit Board
Soldering
Iron Wattage
90W 90W 90W
Tip
Temperature
385 ±10°C 420 ±10°C 420 ±10°C
Soldering Time 2-6 seconds 4-10 seconds 4-10 seconds
Temp
Time
Peak Temp. 240 - 245°C
Ram p d o w n m ax . 4 °C/ sec
Time Limit ed 90sec.above 217°C
Ram p u p max . 3 °C/ sec
Preheat t ime100-140 sec.
217°C
200°C
150°C
25°C
Standard UR1 D1 C1 L1 C2 C3 C4, C5, C6, C7
EN55022 Class B
MOV 14D361K 50V / 9A
1.5µF / 250V 550µH ±20% 6.8µF / 50V
330µF / 50V 0.47nF Y1-Cap
EN61000-4-2, 3, 4, 5, 6 N/A N/A N/A
It is recommended to add UR1, D1 and C1 in railway
application. C1, L1, C2 and C3 can be modified for
required EMI standards. To meet EN61000-4-2, module
case should be earth grounded. We offer independent
case pin option on request, the location is upon pin 1.