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

MECHANICAL DRAWING

PIN CONNECTION

PIN

JFC SERIES

1

+INPUT

2

-INPUT

3

ON/OFF

4

+Vout

5

TRIM

6

-Vout

PRODUCT STANDARD TABLE

Option

Suffix

Negative Remote ON/OFF

R

Positive Remote ON/OFF

Blank

Without ON/OFF pin

D

Without ON/OFF & TRIM pin

G

Negative Remote ON/OFF without TRIM pin

RF

Positive Remote ON/OFF without TRIM pin

F

EXTERNAL OUTPUT TRIMMING

6

5

4

TRIM

UP

TRIM

DOWN

RT1

or

RT2

Output can be externally trimmed by using

the method shown below.

NOTES:

1. All dimensions in inches (mm)

Tolerance: X.XX±0.02 (X.X±0.5)

X.XXX±0.01 (X.XX±0.25)

2. Pin pitch tolerance: ±0.01 (0.25)

Recommended Filter for EN55022 Class B Compliance

The components used in Figure 1, together with the manufacturers’

part numbers for these components, are as follows:

C1

C2

C3

C4 & C5

L1

JFC12Sxx-xxxx

10uF/25V

10uF/25V

N/A

470pF/2KV

145uH

Common Choke

JFC24Sxx-xxxx

6.8uF/50V

6.8uF/50V

N/A

470pF/2KV

325uH

Common Choke

JFC48Sxx-xxxx 2.2uF/100V 2.2uF/100V

2.2uF/100V

470pF/2KV

620uH

Common Choke

Recommended EN55022 Class B Filter Circuit Layout

JFC

SERIES