I500ERW Series
Ultra-Miniature 5W
Single & Dual Output
DC/DC Converters
Electrical Specifications
Specifications typical @ +25°C, nominal input voltage & rated output current, unless otherwise noted. Specifications subject to change without notice.
Input
Key Features: Parameter Conditions Min. Typ. Max. Units
5W Output Power 12 VDC Input 9.0 12.0 18.0
15 VDC Input 12.0 15.0 24.0
Miniature 1"x 1" Case Input Voltage Range VDC
24 VDC Input 18.0 24.0 36.0
Single & Dual Outputs
48 VDC input 36.0 48.0 72.0
1,000 VDC Isolation
Input Filter LC Filter
>1 MHour MTBF Reverse Polarity Input Current 1.0 A
32 Standard Models Output
LOWEST COST!! Parameter Conditions Min. Typ. Max. Units
Output Voltage Accuracy ±3.0 ±5.0 %
Output Voltage Balance Dual Output , Balanced Loads ±1.0 %
Line Regulation Vin = Min to Max ±0.1 ±0.2 %
Load Regulation Iout = 10% to 100% ±0.2 ±0.5
Ripple & Noise (20 MHz) (Note 1) 80 150 mV P - P
Output Power Protection 120 %
Temperature Coefficient ±0.02 ±0.03 %/ºC
Output Short Circuit Continuous
General
Parameter Conditions Min. Typ. Max. Units
Isolation Voltage 60 Seconds 1,000 VDC
Isolation Resistance 500 VDC 1,000 M
Isolation Capacitance 100 kHz, 1V 60 pF
Switching Frequency 300 kHz
Environmental
Parameter Conditions Min. Typ. Max. Units
Operating Temperature Range Ambient
-40 +25 +71 ºC
Operating Temperature Range Case-40 +90 ºC
Storage Temperature Range -55 +125 ºC
Cooling Free Air Convection
Humidity RH, Non-condensing 95 %
Physical
Case Size (5V 12V & 24V Input Models) 1.0 x 1.0 x 0.35 Inches (25.4 x 25.4 x 9.0 mm)
Case Material Non-Conductive Plastic (UL94-V0)
Weight 0.38 Oz (11g)
Reliability Specifications
Parameter Conditions Min. Typ. Max. Units
MTBF MIL HDBK 217F, 25ºC, Gnd Benign 1.0 MHours
Absolute Maximum Ratings
Parameter Conditions Min. Typ. Max. Units
12 VDC Input -0.7 20.0
15 VDC Input -0.7 30.0
Input Voltage Surge (1 Sec) VDC
24 VDC Input -0.7 40.0
48 VDC Input -0.7 80.0
Lead Temperature 1.5 mm From Case For 10 Sec 300 ºC
Internal Power Dissipation All Models 450 mW
Caution: Exceeding Absolute Maximum Ratings may damage the module. These are not continuous operating ratings.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
Model Selection Guide
Input Output Fuse Rating
Model Efficiency
Voltage (VDC) Current (mA) Voltage Current Current Slow-Blow
Number (%, Typ)
Nominal Range Full-Load No-Load (VDC) (mA, Max) (mA, Min) (mA)
I501ERW 12 9.0 - 18.0 556 25 5.0 1,000 100 75 1,500
I502ERW 12 9.0 - 18.0 541 25 9.0 556 56 77 1,500
I503ERW 12 9.0 - 18.0 527 25 12.0 420 42 79 1,500
I504ERW 12 9.0 - 18.0 514 25 15.0 333 34 81 1,500
I505ERW 12 9.0 - 18.0 556 25 ±5.0 ±500 ±50 75 1,500
I506ERW 12 9.0 - 18.0 541 25 ±9.0 ±278 ±28 77 1,500
I507ERW 12 9.0 - 18.0 527 25 ±12.0 ±210 ±21 79 1,500
I508ERW 12 9.0 - 18.0 514 25 ±15.0 ±166 ±17 81 1,500
I511ERW 15 12.0 - 24.0 450 20 5.0 1,000 100 74 700
I512ERW 15 12.0 - 24.0 427 20 9.0 556 56 78 700
I513ERW 15 12.0 - 24.0 417 20 12.0 420 42 80 700
I514ERW 15 12.0 - 24.0 412 20 15.0 333 34 81 700
I515ERW 15 12.0 - 24.0 444 20 ±5.0 ±500 ±50 75 700
I516ERW 15 12.0 - 24.0 427 20 ±9.0 ±278 ±28 78 700
I517ERW 15 12.0 - 24.0 416 20 ±12.0 ±210 ±21 82 700
I518ERW 15 12.0 - 24.0 406 20 ±15.0 ±166 ±17 85 700
I521ERW 24 18.0 - 36.0 278 12.5 5.0 1,000 100 75 700
I522ERW 24 18.0 - 36.0 267 12.5 9.0 556 56 78 700
I523ERW 24 18.0 - 36.0 254 12.5 12.0 420 42 80 700
I524ERW 24 18.0 - 36.0 245 12.5 15.0 333 34 81 700
I525ERW 24 18.0 - 36.0 278 12.5 ±5.0 ±500 ±50 75 700
I526ERW 24 18.0 - 36.0 267 12.5 ±9.0 ±278 ±28 78 700
I527ERW 24 18.0 - 36.0 254 12.5 ±12.0 ±210 ±21 82 700
I528ERW 24 18.0 - 36.0 245 12.5 ±15.0 ±166 ±17 85 700
I531ERW 48 36.0 - 72.0 134 6.25 5.0 1,000 100 78 350
I532ERW 48 36.0 - 72.0 129 6.25 9.0 556 56 81 350
I533ERW 48 36.0 - 72.0 124 6.25 12.0 420 42 84 350
I534ERW 48 36.0 - 72.0 123 6.25 15.0 333 34 85 350
I535ERW 48 36.0 - 72.0 133 6.25 ±5.0 ±500 ±50 78 350
I536ERW 48 36.0 - 72.0 128 6.25 ±9.0 ±278 ±28 81 350
I537ERW 48 36.0 - 72.0 124 6.25 ±12.0 ±210 ±21 84 350
I538ERW 48 36.0 - 72.0 122 6.25 ±15.0 ±166 ±17 85 350
Notes:
1. When measuring output ripple, it is recommended that an external ceramic capacitor (approx
Derating Curve
approx 1 F to 10 F) be placed from the +Vout pin to the -Vout pin for single output units and
from each output to common for dual output units.
2. These units should not be operated with a load under 10% of full load. Operation at no-load
may cause damage to the unit.
3. These converters are specified for operation without external components. However, in some
applications the addition of input/ouput capacitors will enhance stability and reduce output
ripple. Recommended capacitor values are:
Output Capacitor
Input
Vin Vout 0 - 70ºC -40 - 85ºC
Capacitor
(Electrolitic) (Tantalum)
12 VDC 100 F 5 VDC 100 F 47 F
15 VDC 100 F 9 VDC 100 F 47 F
24 VDC 10 F 12 VDC 100 F 47 F
48 VDC 10 F 15 VDC 100 F 47 F
For applications requiring very low output noise levels, a simple LC filter should be
effective. Mechanical Dimensions
4. Dual output units may be connected to provide a 10V, 18V, 24V or 30 VDC output. To
do this, connect the load across the positive (+Vout) and negative (-Vout) outputs and
float the output common.
5. It is recommended that a fuse be used on the input of a power supply for protection.
See the Model Selection table above for the correct rating.
Pin Connections
Pin Single Dual Pin Single Dual
1 +Vin +Vin 4 No Pin Common
2 -Vin -Vin 5 -Vout -Vout
3 +Vout +Vout
Notes: All dimensions are typical in inches (mm)
Tolerance x.xx = ±0.01 (±0.25)
Pin 1 is marked by a "dot" on the top of the unit
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de