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

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

JFC Series

Single & Dual Outputs

15 Watt DC/DC Converter

2:1 Wide Input Voltage Range

Rev D

FEATURES

● Six-Sided Shielding

● High Efficiency up to 89%

● Fixed Switching Frequency

● 2:1 Wide Input Voltage Range

● 1600VDC Input to Output Isolation

● 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: Negative Logic Remote On/Off, Without Trim, Without On/Off pin

SPECIFICATIONS: JFC Series

All specifications apply @ 25°C ambient unless othe rwise 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

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

(standard)

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

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

(option “R suffix”)

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%

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

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

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

Dual Output .................... ±0.5%

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

Dual Output .................... ±1.0%

Cross Regulation (Dual) (Asymmetrical load 25% / 100% FL) ............±5%

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

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

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

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

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 ...................................................................10G

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

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

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

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

Vibration.............................................................................. MIL-STD-810F

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

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 ...............................................................................FR4 PCB

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

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

SAFETY & EMC

Approvals and Standards .................. IEC60950-1, UL60950-1, EN60950-1

ESD ............... EN61000-4-2……..

.............Perf. Criteria B

Radiated Immunity ............. EN61000-4-3 .............. 10V/m Perf. Criteria A

Conducted Immunity .......... EN61000-4-6 .............. 3Vrms Perf. Criteria A

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

APPLICATIONS

● Measurement

● Telecom/Datacom

● Wireless Networks

● Industry Control Systems

● Semiconductor Equipment

Air

± 8KV

Contact ± 6KV