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www.ConTech-us.com Email: sales@ConTech-us.com Ph: 925-609-1193 / Toll free 877-302-4411 2401 Stanwell Drive, Concord Ca. 94520

eco # 151119-1 18:151015

Model Number Voltage Current

Reected

Ripple

Over

Voltage

Protection

Input

Overvoltage

(1000ms)

Efciency*

Capacitive

Load

Input Output Input Output

Nom.

(VDC)

Range

(VDC) (VDC)

@ No

Load

(mA)

@ Max

Load

(mA)

Min

(mA)

Max

(mA)

Typ

(mA)

VDC

(Typ.)

Max

(VDC)

@ Max

Load

(%, Typ)

Max

(Dual each

output)

QMJ15H24S3R3 24 (9-36) 3.3 80 711 0 4500 50 3.9 50 87 10300

QMJ20H24S5 24 (9-36) 5 90 936 0 4000 50 6.2 50 89 6800

QMJ20H24S12 24 (9-36) 12 40 938 0 1670 50 15 50 89 1200

QMJ20H24S15 24 (9-36) 15 40 941 0 1340 50 18 50 89 750

QMJ20H24S24 24 (9-36) 24 40 949 0 835 50 30 50 88 300

QMJ20H24D12 24 (9-36) ±12 40 938 ±60 ±835 50 ±15 50 89 680

QMJ20H24D15 24 (9-36) ±15 40 941 ±50 ±670 50 ±18 50 89 380

QMJ15H48S3R3 48 (18-75) 3.3 40 352 0 4500 30 3.9 100 88 10300

QMJ20H48S5 48 (18-75) 5 45 468 0 4000 30 6.2 100 89 6800

QMJ20H48S12 48 (18-75) 12 25 469 0 1670 30 15 100 89 1200

QMJ20H48S15 48 (18-75) 15 25 471 0 1340 30 18 100 89 750

QMJ20H48S24 48 (18-75) 24 25 474 0 835 30 30 100 88 300

QMJ20H48D12 48 (18-75) ±12 25 469 ±60 ±835 30 ±15 100 89 680

QMJ20H48D15 48 (18-75) ±15 25 471 ±50 ±670 30 ±18 100 89 380

• Efciency up to 90%

• 1500 VDC Isolation

• Single Output Up to 4.5A

• Over Voltage Protection

• 4:1 Ultra Wide Input Range

• Six Sided Shielding

• Remote On/Off Control

• Optional Heatsink

• RoHS Compliant

• CSA Approved

Pin Connections

Pin Single Dual

1 +Vin +Vin

2 -Vin -Vin

3 +Vout +Vout

4 Trim Common

5 -Vout -Vout

6 Remote On/Off Remote On/Off

Tolerance: Inches Millimeters

X.XX ±0.01 X.X ±0.25

X.XXX ±0.005 X.XX ±0.13

Pin ±0.002 ±0.05

20 Watt QMJ

Single and Dual Series

Dimensions are inches (mm) unless noted

* Efciency for 24 VDC Input units measured at 12 VDC.

Efciency for 48 VDC Input units measured at 24 VDC.

FIGURE 1

FIGURE 2

KEEP OUT AREAS:

Keep copper traces in mating

assembly away from this area to

prevent shorting.

Figure 1:

QMJ15H24S3R3, QMJ20H24S5

QMJ15H48S3R3, QMJ20H48S5

Figure 2: All other models

Optional Heatsink

For heatsink order HS03.

Comes with thermal pad and clamps.

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www.ConTech-us.com Email: sales@ConTech-us.com Ph: 925-609-1193 / Toll free 877-302-4411 2401 Stanwell Drive, Concord Ca. 94520

eco # 151119-1 18:151015

Input Parameters Min Typ Max Units

Input Surge Voltage (1 sec max.)

24 Vin

48 Vin

-0.7

100

VDC

Start Voltage

24 Vin

48 Vin

VDC

Start Up Time 30 mS

Switching Frequency 330 kHz

Input Filter LC Filter

Output Parameters

Min Typ Max Units

Output Voltage Accuracy

±1.0 %

Output Voltage Balance

Dual Output, Balanced Loads

±2.0 %

Load Regulation

Min. Load to Full Load

Single 3.3V & 5V

12V, 15V & 24V

Dual ±12V & ±15V

±0.5

±0.2

±1.0

Line Regulation Single Output

Vin=Min. to Max. Dual Output

±0.2

±0.5

Ripple & Noise (20MHz)

3.3V & 5V Output Models

12V & 15V Output Models

24V Output Models

±12V, ±15V Output Models

100

150

100

mV P-P

Over Current Protection

150 % of Iout

Transient Recovery Time

25% Load Step Change

300 µs

Temperature Coefcient

±0.02 % / ºC

Short Circuit Protection

Hiccup Automatic Recovery

Remote On Off

Min Typ Max Units

DC/DC On

3.5V-12V or Open Circuit

DC/DC Off

0v -1.2V or Short Circuit

Control Input Current (on)

Vctrl = 5.0V

0.5 mA

Control Input Current (off)

Vctrl = 0V

-0.5 mA

Control Common

Referenced to Negative Input

Standby Input Current

Supply Off & Nominal Vin

10 mA

Output Voltage Trim

Min Typ Max Units

Trim Up / Trim Down (7)

% of nominal output voltage

±10 %

See Model Selection Table for Model Specic Parameters

Notes:

1. Specications typical at Ta=+25ºC, resistive load, nominal input voltage,

full rated output current unless otherwise noted.

2. Ripple & Noise measurement bandwidth is 20MHz, measured with a

1µF MLCC and a 10µF Tantalum Capacitor.

3. Transient recovery time is measured to within 1% error band for a step

change in output load 75% to 100%.

4. Water washability - ConTech DC/DC converters are designed to

withstand most solder/wash processes. Careful attention should be

used when assessing the applicability in your specic manufacturing

process. Converters are not hermetically sealed.

5. See ConTech website for Denition of Terms, Application Notes, and

Test Setups and Parameters. www.ConTech-us.com/appnotes.html.

6. Specications subject to change without notice.

7. Output voltage trimming must use resistive components only. Applying

external voltages to the trim pin can cause damage.

8. See ConTech website www.ConTech-us.com/pdf/rohs.pdf for RoHS

Statement.

General Specications

Min Typ Max Units

Isolation Voltage,

60 seconds

1500 VDC

Isolation Resistance

500VDC

1000 Mohms

Isolation Capacitance,

100kHz, 1V

1500 pF

Operating Temperature (Ambient)

-40 +85 ºC

Operating Temperature (Case)

-40 +105 ºC

Thermal Impedance

Natural Convection without heatsink

Natural Convection with heatsink

18.2

15.3

ºC/W

Storage Temperature

-50 +125 ºC

Humidity

95 %

MTBF MIL-HDBK-217F @25ºC,

Ground Benign

451 K Hours

Cooling

Free-Air Convection

Case Size 1.0 x 1.0x 0.4 inches

25.4 x 25.4 x 10.16 mm

Case Material Six-Sided shielded, Metal Case

(UL-94V-0)

Weight

15g

Agency Approvals

CSA 60950-1 Approved