Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

603-778-2300 www.wallindustries.com Fax 603-778-9797

JFC Series

Single Output

15 Watt DC/DC Converter

2:1 Wide Input Voltage Range

FEATURES

● Six-Sided Shielding

● Input to Output Isolation

● High Efficiency up to 88%

● Fixed Switching Frequency

● 2:1 Wide Input Voltage Range

● 15 Watts Maximum Output Power

● ISO9001 Certified Manufacturing Facilities

● Compliant to RoHS EU Directive 2002/95/EC

● Industry Standard Pin-Out DM Series Compatible

● Small Size and Low Profile: 1.0 x 1.0 x 0.39 Inches

● UL60950-1, EN60950-1, and IEC60950-1 Licensed

● CE Mark Meets 2006/95/EC, 93/68/EEC, and 2004/108/EC

● Options: Positive Logic Remote On/Off, Without Trim, Without On/Off pin

All specifications apply @ 25°C ambient unless otherwise noted

INPUT SPECIFICATIONS

Input Voltage Range ............ 12V nominal input ........................ 9 - 18VDC

24V nominal input ...................... 18 - 36VDC

48V nominal input ...................... 36 - 75VDC

Input Voltage Variation .................... dv/dt ................................ 5V/ms max

(Complies with EST300 132 part 4.4)

Input Surge Voltage (100ms max) ....... 12V input ...........................36VDC

24V input ...........................50VDC

48V input .........................100VDC

Reflected Ripple Current (nominal Vin and full load .....................30mAp-p

Start Up Time (nominal Vin and constant resistive load)

Power Up..............................................................................30ms max.

Remote ON/OFF ..................................................................30ms max.

Start-Up Voltage .................................. 12V input .............................9VDC

24V input ...........................17VDC

48V input ...........................33VDC

Shutdown Voltage................................ 12V input .............................8VDC

24V input ........................14.5VDC

48V input ........................30.5VDC

Remote ON/OFF (See Note 7)

Positive Logic ................. DC-DC ON................Open or 3V < Vr < 12V

(option)

DC-DC OFF .............Short or 0V < Vr < 1.2V

Negative Logic................ DC-DC ON...............Short or 0V < Vr < 1.2V

(standard)

DC-DC OFF ..............Open or 3V < Vr < 12V

Input Current of Remote Control Pin (nominal Vin) .......... -0.5mA ~ 1.0mA

Remote Off State Input Current (nominal Vin) ..................................2.5mA

OUTPUT SPECIFICATIONS

Output Voltage ..............................................................................see table

Voltage Accuracy (full load and nominal Vin) ...................................... ±1%

Voltage Adjustability (See Note 6) ..................................................... ±10%

Output Current ..............................................................................see table

Output Power ........................................................................ 15 watts max.

Line Regulation (LL to HL at FL)....................................................... ±0.2%

Load Regulation (no load to full load) ............................................... ±0.2%

Minimum Load ....................................................................................... 0%

Ripple/Noise (20 MHz BW) ...........................................................see table

(measured with a 1µF M/C and a 10µF T/C)

Temperature Coefficient ................................................. ±0.02% / °C max.

Transient Response Recovery Time (25% load step) .......................250us

PROTECTION SPECIFICATIONS

Over Voltage Protection ...........3.3V output ............................... 3.7V - 5.4V

5V output ...............................5.6V – 7.0V

12V output ...........................13.5V – 19.6V

15V output ...........................16.8V – 20.5V

Over Load Protection (% of FL at nominal input) ......................... 150% typ.

Short Circuit Protection...................................... Hiccup, automatic recovery

GENERAL SPECIFICATIONS

Efficiency ........................................................................................see table

Switching Frequency .................................................................400KHz typ.

Isolation Voltage

Input to Output ................................................................... 1600VDC min.

Input to Case ..................................................................... 1000VDC min.

Output to Case................................................................... 1000VDC min.

Isolation Resistance .................................................................... 10GΩ min.

Isolation Capacitance .............................................................. 1000pF max.

ENVIRONMENTAL SPECIFICATIONS

Operating Temperature ................................ -40°C ~ +85°C (with derating)

Storage Temperature .......................................................... -55°C ~ +125°C

Maximum Case Temperature ............................................................. 105°C

Relative Humidity...................................................................5% to 95% RH

Thermal Impedance (See Note 8)

Natural Convection .............................................................. 18.2°C / Watt

Natural Convection with heat-sink ....................................... 15.8°C / Watt

Thermal Shock ..................................................................... MIL-STD-810F

Vibration ...................10~55Hz, 2G, 3 min period, 30 min along X, Y, and Z

MTBF (See Note 1)

BELLCORE TR-NWT-000332 ...................................... 1.330 x 10

MIL-HDBK-217F ........................................................... 5.630 x 10

PHYSICAL SPECIFICATIONS

Weight .................................................................................................... 15g

Dimensions......................... 1.0 x 1.0 x 0.39 inches (25.4 x 25.4 x 9.9 mm)

Case Material ..............................................................Nickel-coated copper

Base Material...................................................... Non-conductive black FR4

Potting Material..................................................................Epoxy (UL94-V0)

Shielding...................................................................................... six – sided

Due to advances in technology, specifications subject to change without notice

APPLICATIONS

● Measurement

● Wireless Network

● Telecom/Datacom

● Industry Control System

● Semiconductor Equipment