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Features
Unregulated
Converters
• Low cost
• 1:1 Input voltage range
• Efficiency up to 81%
• 4kVDC/1 second isolation
• IEC/EN/UL certified
RKE/H
Description
The RKE/H DC/DC converters are typically used in cost sensitive general purpose power isolation and
voltage matching applications. Despite their low cost, they are fully specified converters with 4kVdc
isolation, industrial operating temperature range of -40°C to +85°C without derating and UL/EN
certifications.
DC/DC Converter
1 Watt
SIP7
Single Output
UL60950-1 certified
CSA/CAN 22.2 No. 60950-1 certified
IEC/EN60950-1 certified
EN55032 compliant
E358085
Selection Guide
Part Input Output Output Efficiency max. Capacitive
Number Voltage Voltage Current typ.(1) Load(2)
[VDC] [VDC] [mA] [%] [µF]
RKE-0505S/H 5 5 200 75 1000
RKE-1205S/H 12 5 200 80 1000
RKE-2405S/H 24 5 200 81 1000
Model Numbering
Ordering Examples:
RKE-0505S/H, 5Vin and 5Vout, Single Output
RKE-2405S/H, 24Vin and 5Vout, Single Output
Input Voltage
Output Voltage
RKE-__ __ S/H
Notes:
Note1: Values at nominal input voltage and full load
Note2: Test by minimum Vin and constant resistor load
BASIC CHARACTERISTICS
Parameter Condition Min. Typ. Max.
Input Filter internal capacitors
Input Voltage Range -10% +10%
Operating Frequency 80kHz
Minimum Load 0%
Output Ripple and Noise measured with 20MHz bandwidth and a
0.1µF ceramic capacitor 40mVp-p 100mVp-p
continued on next page
Specifications (measured at Ta= 25°C, nominal input voltage, full load, otherwise noted)
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DC/DC Converter
Specifications (measured at Ta= 25°C, nominal input voltage, full load, otherwise noted)
RKE/H
Series
REGULATIONS
Parameter Condition Values
Output Voltage Accuracy
±5% typ.
Line Voltage Regulation low line to high line ±1.2% typ. /1% of Vin
Load Voltage Regulation 10% to 100% load
Vin= 5V
Vin = 12V
Vin = 24V
8% typ., 15% max
3% typ., 15% max
4% typ., 15% max
Efficiency vs. Load
Accuracy vs. Load
Tolerance Envelope
Vin = 5V Vin = 12V/24V
0 10 20 30 40 50 60 70 80 90
100
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Output Load [%]
0505
1205
2405
30
20
10
0
25
15
5
-5
Deviation [%]
010 20 30 40 50 60 70 80 90 100
Output Load [%]
0505
1205
2405
10
Vnom
50 100
Output Voltage
Load [%]
typical load line
typical load line
10
-2%
+5%
+4%
+15%
+15%
+8%
-5%
-2%
+5%
-5%
Vnom
50 100
Output Voltage
Load [%]
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DC/DC Converter
Specifications (measured at Ta= 25°C, nominal input voltage, full load, otherwise noted)
RKE/H
Series
SAFETY AND CERTIFICATIONS
Certificate Type Report / File Number Standard
IEC/EN General Safety LVD1602031 IEC/EN60950-1, 2nd Edition, 2013
UL General Safety E358085-A4
UL60950-1, 2nd Edition, 2007
CAN/CSA General Safety CSA C22.2 No. 60950-1, 2nd Edition, 2007
EAC RU-AT.49.09571 TP TC 004/2011
RoHs 2
2011/65/EU
EMC Compliance Condition Standard / Criterion
Electromagnetic compatibility of multimedia equip-
ment - Emission requirements with external filter EN55032, Class B
continued on next page
PROTECTIONS
Parameter Condition Value
Isolation Voltage (3) I/P to O/P tested for 1 second
tested for 1 minute
4kVDC
3kVDC
Isolation Capacitance 75pF max.
Isolation Resistance 1GΩ min.
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range with derating -40°C to +85°C
Maximum Case Temperature +105°C
Operating Humidity non-condensing 5% to 95% RH
Vibration MIL-STD-202G
MTBF according to MIL-HDBK-217F, G.B. +25°C
+85°C
13200 x 10³hrs
5200 x 103hrs
Derating Graph
-40 -20 0 20 40 7060-30 -10 10 30 50 80 90
85
110100
100
80
60
40
90
70
50
30
20
10
0
Output Load [%]
Ambient Temperature [°C]
Notes:
Note3: For repeat Hi-Pot testing, reduce the time and/or the test voltage
www.recom-power.com REV.: 2/2018 ECO-4
DC/DC Converter
Specifications (measured at Ta= 25°C, nominal input voltage, full load, otherwise noted)
RKE/H
Series
The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer.
The
products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or
cause
loss of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the
unauthorized
use of RECOM products in such safety-critical applications.
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter Type Value
Material case
potting
black plastic (UL94 V-0)
epoxy (UL94 V-0)
Package Dimension (LxWxH) 19.65 x 7.05 x 10.2mm
Package Weight 2.7g typ.
Dimension Drawing (mm)
Bottom View
embossed logo
1 2 5 7
10.2
RKE-xxyyS/HRKE-xxyyS/H
4.10
2.0
6 x 2.54= 15.24
1.27
0.25
7.05
19.65
0.51
0.51
Marking
Top View
Ø1.00 +0.15/-0
2.54
2.54
Pin Connections
Pin # function
1 +Vin
2 -Vin
5 -Vout
7 +Vout
Tolerance: xx.x= ±0.5mm
xx.xx= ±0.35mm
Pin dimension: ±0.05mm
Pin pitch: ±0.25mm
PACKAGING INFORMATION
Packaging Dimension (LxWxH) Tube 520 x 9.3 x 16.5mm
Packaging Quantity 25pcs
Storage Temperature Range -55°C to +125°C
C1
L1
+Vin +Vout
-Vout
-Vin
470pF/5kVDC
MODEL C1L1
RKE-0505S/H 10µF 4.7µH choke
RKE-1205S/H 4.7µF 22µH choke
RKE-2405S/H 2.2µF 47µH choke
EMC Filtering Suggestion according to EN55032 Class B
