Rated40W
Max.
48W
Peak56W
SNP-G04 Series

General Purpose

Features:
●
●
●
●
●
●

Only 0.91 inch height
7.3 Watt per cubic inch
With ITE & Medical safety
Efficiency between 84% to 86%
Operation from -20oC to 70oC by convection
Compatible to Class I / II safety & EMC

Applications:●2" x 3" x 0.91"

For dental, laboratory products, pumps, monitors, sleep
apnea devices and many other uses.

General Specifications:
Input voltage ......................................... 90 VAC to 264 VAC
Input frequency ............................................. 47 Hz to 63 Hz
Inrush current ............................................ < 30A at 115VAC(cold start at 25oC)
or < 60A at 230VAC
Efficiency .............................. 84%~86% depends on models
Hold up time .................................................... 18 ms typicalat rated load and 115VAC
Over load protection ........................................ auto recovery
Short circuit protection..................................... auto recovery

Over voltage protection ............................................ latch off
Operating temperature (open frame type) ....... -20oC to 70oC
derating: 2.5% / oC > 50oC
Cooling ............................................ 40W free air convection
Storage temperature ..................................... -40oC to +85oC
EMI .......................................... EN55022 "B", EN61000-3-3
Harmonics............................................ EN61000-3-2 class A
EMS..................................... EN61000-4-2,-3,-4,-5,-6,-8,-11
Safety ................................ UL/CSA/IEC60950-1, 2nd edition
ANSI/AMMI/CSA/IEC60601-1, 3rd edition

Mechanical Specifications:76.2 (3")

Notes:
1.
50.8
(2")

2.
3.
4.

23.1 Max.
(0.91")-Hui-MAY 2015

5.

Size:
2" x 3" x 0.91"
Mounting Hole:
44.5 x 69.9 (mm)Connectors:
AC input: Molex 5277-02A or equivalent
DC output: Molex 5273-04A or equivalent
Output Pin assignment:
12

34VoVoGND

GND

Packing:
Net weight: 88.5 g approx. / unit
Gross weight: 11.4 kg approx. / carton, 100 units / carton
Carton size (mm): 412 (L) x 382 (W) x 225 (H)10 years Warranty (contact Skynet's Distributors for details)** This data sheet is only for models selection. For business, engineering specification by model must be used.

4-1

Rated40W
Max.
48W
Peak56W
SNP-G04 Series

General Purpose

Output Specifications:MODEL

OUTPUT			 LOADRAIL

VOLTAGE

LINE

LOAD

RATED		 MAX.

PEAK

ACCURACYRIPPLEMIN.

SNP-G047		
SNP-G047 -M

+12V

0A

3.33A		

4.7A

+11.8V~+12.2V

100mVpp

±0.5%

±1%

SNP-G048		
SNP-G048 -M

+15V

0A

2.66A		

3.8A

+14.8V~+15.2V

100mVpp

±0.5%

±1%

SNP-G045		
SNP-G045 -M

+18V

0A

2.22A		

3.2A

+17.8V~+18.2V

100mVpp

±0.5%

±1%

SNP-G049		
SNP-G049 -M

+24V

0A

1.66A		

2.4A

+23.7V~+24.3V

150mVpp

±0.5%

±1%

SNP-G04G
SNP-G04G-M+28V0A

1.42A		

2.0A

+27.7V~+28.2V

150mVpp±0.5%±1%

SNP-G04J
SNP-G04J -M+36V0A

1.11A		

1.6A

+35.6V~+36.4V

150mVpp

±0.5%

±1%

SNP-G04T
SNP-G04T -M+48V0A

0.83A		 1.16A+47.6V~+48.4V

150mVpp

±0.5%

±1%

NO.

NOISE

REG.

REG.

Note:
1.
2.
3.
4.
5.
6.
7.

Standby Power Cosumption with System:
For computers and displays, ENERGY STAR in U.S. and ErP regulation in Europe require the input power should be less than 0.5W at standby mode.
Output Load:
40W for convection cooling; 48W for forced air cooling.
Peak Load Duration:
Peak 56W can last for 5 sec.
Isolation Grade:→ Ground : 1MOPP (1500Vac)
Primary ←→ Secondary : 2MOPP (4000Vac)
Primary ←Secondary ←→ Ground		 : 1MOPP (1500Vac)
Leakage Current:
Earth leakage current < 300uA
Touch current < 100uA
EMI Grounding:If there is a metal sheet under the power supply, connect the EMI ground to the metal sheet.
Model Selection:
SNP-G04x is for ITE application.
SNP-G04x-M is for medical application.

-Hui-4-2** This data sheet is only for models selection. For business, engineering specification by model must be used.

MAY 2015

General Purpose

Rated40W
Max.
48W
Peak56W
SNP-G04 Series

Performance for SNP-G047:
1. Switching frequency ripple

2. Line frequency ripple+12V/3.33A+12V/3.33A

50ms/div, 5ms/div

50mV/div, 5us/div

3. Output turn on wave form

4. Output turn off wave form
+12V/3.33A+12V/3.33A

2.00V/div, 10ms/div

2.00V/div, 5ms/div

5. Hold-up time

6. Over voltage protection
Trip point around 14.0V

60% Rated load

5.0V/divPrimary DC

50V/div
5ms/div

5.0V/div, 5ms/div-Hui-MAY 2015** This data sheet is only for models selection. For business, engineering specification by model must be used.

4-3

General Purpose

7. +12V step response

Rated
40W
Max.
48W
Peak56W
SNP-G04 Series

8. FCC B Class I+12V

200ms/div, 2md/div+12V step from 0.666A to 3.33A

9. CISPR 22 B Class I

10. FCC B Class II

11. CISPR 22 B Class II

12. Power derating curve-Hui-4-4** This data sheet is only for models selection. For business, engineering specification by model must be used.

MAY 2015