S-NA 3VA PCB Mountable Power Transformers
LI017V2/2004
1. Features
  • Fully-encapsulated printed circuit board soldering, easy and flexable to use. Perfect outline;
  • Compact in structure, solid, shockproof, moisture-proof, flame-resitant;
  • Low idle current,good over-voltage capacity;
  • Built-in temperature protector, safer in application.
  • Ambient temperature: -25°C ~ +70°C;
  • Relative humidity: =90% at 40°C;
  • Atmospheric pressure: 860 ~ 1060mbar(about 650 ~ 800mmHg);
  • Insulation Rating: B(130°C);
  • Insulation resistance: >1000MΩ in normal condition;
  • Insulation withstand voltages: 2000V/min in line-frequency;
  • Basis insulation impulse level: Can receive 20 times continued impact of 6KV/50µS
  • Flame retardancy: In conformity with UL94-Vo.
  • Safety authentication/certifications: CE, UL;
  • Quality certification: ISO9000.
2. Outline Drawing Diagram (SNA 3VA)

3. Technical Parameters of S-NA 3VA Standard Products

Primary Pins Primary Voltage Frequency Primary Current
Rating Max. Idle Full Load
1-5 110V 137.5V 50/60Hz ≤16mA ≤36mA

Model Windings Secondary Voltage Secondary Current
(mA)		 Pins Equivalent Internal Resistance
(Ω)
Idle Full Load
S-NA3-01
2,3,4,6,8,10 not used

7V

 6V 500 7-9 2.6
S-NA3-01B 8.8V 7.5V 400 4
S-NA3-02 10.6V 9V 333 6
S-NA3-03 14V 12V 250 10
S-NA3-04 17.5V 15V 200 16.5
S-NA3-05 21V 18V 167 24
S-NA3-05B 24.6V 21V 143 32.5
S-NA3-06 28V 24V 125 42.5
S-NA3-06B 31.8V 27V 111 54
S-NA3-07
2,3,4,8 not used

2 ?7V 2 ?6V 2 ?250 6-7
9-10		 2 ?5.2
S-NA3-07B 2 ?8.8V 2 ?7.5V 2 ?200 2 ?8
S-NA3-08 2 ?10.6V 2 ?9V 2 ?167 2 ?12
S-NA3-09 2 ?14V 2 ?12V 2 ?125 2 ?20
S-NA3-10 2 ?17.6V 2 ?15V 2 ?100 2 ?33
S-NA3-11 2 ?21V 2 ?18V 2 ?83 2 ?48
S-NA3-11B 2 ?24.6V 2 ?21V 2 ?71 2 ?65
S-NA3-12 2 ?28V 2 ?24V 2 ?62.5 2 ?85
S-NA3-12B 2 ?31.8V 2 ?27V 2 ?55.6 2 ?108


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