Rev. C

JF Series

Single Outputs

2:1 Input Voltage Range

15W DC/DC Power Converters

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

11/11/2011

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

Page 3 of 6

MODEL SELECTION TABLE

Output Current

Input Current

Model Number

Input Range

Output

Voltage

Min. load

Full load

Output

(4)

Ripple & Noise

No load

(3)

Full load

(2)

Output

Power

Efficiency

(4)

Capacitor

(5)

Load max

JF24S3.3-3500

3.3 VDC

0mA

3500mA

75mVp-p

20mA

587mA

11.5W

86%

10000μF

JF24S5-3000

5 VDC

0mA

3000mA

75mVp-p

20mA

753mA

15W

87%

6000μF

JF24S12-1250

12 VDC

0mA

1250mA

100mVp-p

15mA

753mA

15W

87%

1000μF

JF24S15-1000

24 VDC

(18 - 36 VDC)

15 VDC

0mA

1000mA

100mVp-p

15mA

744mA

15W

88%

660μF

JF48S3.3-3500

3.3 VDC

0mA

3500mA

75mVp-p

15mA

297mA

11.5W

85%

10000μF

JF48S5-3000

5 VDC

0mA

3000mA

75mVp-p

15mA

377mA

15W

87%

6000μF

JF48S12-1250

12 VDC

0mA

1250mA

100mVp-p

10mA

377mA

15W

87%

1000μF

JF48S15-1000

48 VDC

(36 - 75 VDC)

15 VDC

0mA

1000mA

100mVp-p

10mA

372mA

15W

88%

660μF

****See Product Options table on page 5****

NOTES

1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC.

MIL-HDBK-217F Notice2 @ Ta=25°C, Full load (Ground, benign, controlled environment).

2. Maximum value at nominal input voltage and full load.

3. Typical value at nominal input voltage and no load.

4. Typical value at nominal input voltage and full load.

5. Test by minimum input and constant resistive load.

6. Trimming allows the user to increase or decrease the output voltage set point of the module. This is accomplished by connecting an

external resistor between the TRIM pin and either the +OUTPUT pin or the –OUTPUT pin.

7. The CTRL pin voltage is referenced to -INPUT. (See the “Product Options” table on page 5 for suffix options).

8. The power module can operate in a variety of thermal environments; however, sufficient cooling should be provided to help ensure

reliable operation.

9. The JF Series meets EN55022 Class A and Class B only with external components connected to the input pins of the converter.

10.An external filter capacitor is required if the module has to meet EN61000-4-4 and EN61000-4-5. The filter capacitor suggested is

Nippon chemi-con KY Series, 220μF/100V, ESR 48mΩ.

CAUTION: These power modules are not internally fused. An input line fuse must always be used.

OUTPUT ADJUSTABILITY

Output voltage adjustment allows the user to increase or decrease the output voltage set point of a module. This is accomplished by

connecting an external resistor between the TRIM pin and either the +OUTPUT or -OUTPUT pins. With an external resistor between the

TRIM and -OUTPUT pin, the output voltage set point increases. With an external resistor between the TRIM and +OUTPUT pin, the

output voltage set point decreases. The external TRIM resistor needs to be at least 1/16W.

Trim Up Equation

Trim Down Equation



,

U

Oup

GL

RH

VL

K





















,

,

O down

D

O

O down

VL

G

RH

VV

















-INPUT

+INPUT

-OUTPUT

+OUTPUT

TRIM

Model

G

H

K

L

JFXXS3.3-3500

5110

2050

0.8

2.5

JFXXS5-3000

5110

2050

2.5

2.5

JFXXS12-1250

10000

5110

9.5

2.5

JFXXS15-1000

10000

5110

12.5

2.5