Rated120W
Max.
150W
Peak200W
SNP-G12 Series

Medical & ITE
General PurposeFeatures:●

Design for BF application●

Safety Class II●

12V output for fan●

High mechanical torque start-up●-20oC to +70oC operating temperature●

5,000m operation altitude●

Convection cooling for rated load●

Forced air for max. load

2" x 4" x 1.28"

General Specifications:
Input voltage ......................................... 90 VAC to 264 VAC
Input frequency ............................................. 47 Hz to 63 Hz
Inrush current ................................ < 30/60A at 115/230VAC
Hold up time ...................................................... 20ms typicalOver load/Short circuit protection ................... auto recovery
Over voltage protection ............................................ latch off
Operating temperature ..................................... -20oC to 70oC
derating: 2.5% / oC > 45oC for convection cooling
Storage temperature ..................................... -40oC to +85oC

EMI .......................................... EN55022 "B", EN61000-3-3
Harmonics............................................EN61000-3-2, class D
EMS...................................... EN61000-4-2,-3,-4,-5,-6,-8,-11
Safety ................................. UL/CSA/EN60950-1, 2nd edition
ANSI/AMMI/CSA/EN60601-1, 3.1 edition
CB report, CE mark, RM report/file
Energy Saving (for w/o -A suffix) ...................... ENERGY STARfor computers version 6.0
for displays version 6.0
ErP regulation EC(No) 1275/2008

Mechanical Specifications:
Notes:
1.

106.6 (4")

2.
3.
50.8 (2")

4.

5.
32.0 max.
(1.28")-Hui-JUL. 2015

Size:
2" x 4" x 1.28"
Mounting Hole:
44.5 x 95.3 (mm)Connectors:
AC input: JST B2P3-VH or equivalent
DC output: JST 710--VH04
Fan: Molex 5045-02A or equivalent
Output Pin assignment:
Function Pin assignment:
12VoVo34

GND GND		TB3

Function				
PinFAN
Output

2+12V

1GND

Packing:
Net weight: 160 g approx. / unit
Gross weight: 10 kg approx. / carton, 80 units / carton
Carton size (mm): 422 (L) x 412 (W) x 287 (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

Rated
120W
Max.
150W
Peak200W
SNP-G12 Series

Medical & ITE
General PurposeOutput Specifications:MODELOUTPUT			LOAD

NO.

RAIL

MIN. RATED		 MAX. PEAK

INITIAL

ACCURACYSTEP EFFICIENCY		AVERAGE@ 20% LOAD @ 50% LOAD @ 100% LOAD EFFICIENCYSNP-G127		
SNP-G127 -A+12V
0A 10.0A 12.5A 16.6A+11.9V~+12.1V
SNP-G127 -M
SNP-G127 -MA							

82%		

89%		

90%

86.5%

SNP-G128
SNP-G128 -A+15V0A
8.0A 10.0A 13.4A+14.9V~+15.1V
SNP-G128 -M
SNP-G128 -MA							

82%		

89%		

90%

86.5%

SNP-G125		
SNP-G125 -A
SNP-G125 -M
SNP-G125 -MA+17.9V~+18.1V

82%		

89%		

90%

86.5%

SNP-G129
SNP-G129 -A+24V0A
5A 6.3A 8.3A
+23.8V~+24.2V
SNP-G129 -M
SNP-G129 -MA							83.5%		

90%		

90.5%

88%

SNP-G12G
SNP-G12G-A
SNP-G12G-M
SNP-G12G-MA+28V0A

4.3A

5.4A

7.2A

+27.9V~+28.1V

83.5%		

90%		

90.5%

88%

SNP-G12J		
SNP-G12J -A
SNP-G12J -M
SNP-G12J -MA

+36V

0A

3.4A

4.2A

5.6A

+35.8V~+36.2V

83.5%		

90%		

90.5%

88%

SNP-G12T
SNP-G12T -A+48V0A
2.5A 3.1A 4.2A
+47.8V~+48.2V
SNP-G12T -M
SNP-G12T -MA							83.5%		

90%		

90.5%

88%

+18V0A

6.6A

8.3A 11.1A

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:
120W for convection cooling; 150W for forced air cooling.
Peak Load Duration:
Peak 200W can last for 5 sec.
Isolation Grade:Primary ←→ Ground : 1MOPP (1500Vac)
Primary ←→ Secondary : 2MOPP (4000Vac)
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:
Most of power supplies will create audible burst sound at light load, if the application wants to meet input power < 0.5W at standby mode.
SNP-G12x is for ITE application which requires standby mode.
SNP-G12x-A is for ITE application but without burst sound and no standby mode.
SNP-G12x-M is for medical application which requires standby mode.
SNP-G12x-MA is for medical application but without burst sound and no standby mode.

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

JUL. 2015

Rated
120W
Max.
150W
Peak200W
SNP-G12 Series

Medical & ITE
General Purpose

Performance for SNP-G127:
1. Switching frequency ripple

2. Line frequency ripple+12V/10A+12V/10A

50mV/div, 5ms/div

50mV/div, 5us/div

3. Output turn on wave form

4. Output turn off wave form

+12V/10A+12V/10A

5.0V/div, 10ms/div5.0V/div, 20ms/div

5. Hold-up time

6. Over voltage protection
Trip point around 14.2V (60% Rated load)

5.0V/div

200V/div

Primary DC

10ms/div

5.0V/div, 20ms/div-Hui-JUL. 2015** This data sheet is only for models selection. For business, engineering specification by model must be used.

4-3

Rated
120W
Max.
150W
Peak200W
SNP-G12 Series

Medical & ITE
General Purpose

7. +12V step response

8. +12V peak load

+12V+12V/16.7A

2.00V/div, 1s/div

0.5V/div, 2ms/div+12V step from 3A to 10A9. FCC B

10. CISPR 22 B

11. Power derating curve

12. Capability for driving motor
SNP-G127(SNP-G129)
2V(5V)

12V/24A●(24V/12A)

2.5V(8V)

12V/23A●(24V/11.5A)

8V(11V)

12V/22A●(24V/11A)

9V(14V)

12V/21A●(24V/10.5A)

9.3V(18V)

12V/20A●(24V/10A)

020

40

60

80

100

120

140

160

180

Operation time (ms)-Hui-4-4** This data sheet is only for models selection. For business, engineering specification by model must be used.

JUL. 2015