Murata Power Solutions

EUS20-120-6200921520.B01

18/04/08

2

EUS20-120 Model

BUS CONVERTER

Table 1

Protection Characteristics

Notes & Conditions 0

Min

Typ.

Max

Units

Output Over-Current Shutdown

Non-Latching

24

25

27

A

Re-start rate

75

msec

Over Temperature Shutdown (5)

Non-Latching

125

130

°C

Over Temperature Restart Hysteresis

10

°C

Table 2

General Specifications

Notes & Conditions 0

Min

Typ.

Max

Units

Isolation Voltage

Input to Output

2250

Vdc

Isolation Resistance

Input to Output

10

Mohm

Storage Temperature Range

Non-condensing

-40

125

°C

Operating Temperature Range

Ambient (7)

-40

100

°C

Thermal Measurement Location Temperature (7)

See mechanical drawing for location

120

°C

Material Flammability

UL 94V-0

MTBF

Calculated (Bellcore TR-332)

2.7

x10

Demonstrated

2

x10

Dimension

2.28”L x 0.9”W x 0.48”H (max)

(57.9L x 22.9W x 12.19H mm max)

Weight

30

grams

Table 3

Standards Compliance

Notes & Conditions (6)

UL/CSA 60950

Basic Insulation

EN60950

Certified by TUV

Notes:

Vin = 48Vdc, Ta = 25 °C, Airflow = 200 LFM for all data unless otherwise noted.

Output ripple voltage and noise is specified when measured with a 10uF tantalum and a 1uF ceramic capacitor at the converter output pins.

Transient response is specified without a capacitor at the output of the converter.

Product operates with an external capacitance significantly greater than specified. However, for values higher than 2000uF please contact

C&D representative.

Thermal shutdown is monitored at the Thermal Measurement Location (TML). See ‘Mechanical Information’ on page 3 for TML location.

See ‘Safety Considerations’ shown on last page.

De-rating curves are conducted in a controlled environment. End application testing is required to ensure the Thermal Measurement

Location temperature is below the maximum specified.

Recommended airflow direction is from pin 1 to pin 3, or 3 to 1 (transverse airflow).

Current share accuracy is optimized when the source and load impedance presented to each converter is equal.

Input Reflected Ripple is specified when measured with a 12uH source inductance.