S-NA 4VA 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 4VA)

3. Technical Parameters of S-NA 4VA Standard Products

Primary Pins Primary Voltage Frequency Primary Current
Rating Max. Idle Full Load
1-5 110V 137.5V 50/60Hz ≤30mA ≤52mA

Model Windings Secondary Voltage Secondary Current
(mA)		 Pins Equivalent Internal Resistance
(Ω)
Idle Full Load
S-NA4-01
2,3,4,6,8,10 not used

6.9V

 6V 667 7-9 1.75
S-NA4-01B 8.6V 7.5V 533 2.7
S-NA4-02 10.3V 9V 444 3.9
S-NA4-03 13.8V 12V 333 7
S-NA4-04 17.2V 15V 267 10.5
S-NA4-05 20.6V 18V 222 15.6
S-NA4-05B 24V 21V 190 21.5
S-NA4-06 27.5V 24V 167 28
S-NA4-06B 31V 27V 148 35
S-NA4-07
2,3,4,8 not used

2 ?6.9V 2 ?6V 2 ?333 6-7
9-10		 2 ?3.5
S-NA4-07B 2 ?8.6V 2 ?7.5V 2 ?267 2 ?5.4
S-NA4-08 2 ?10.3V 2 ?9V 2 ?222 2 ?7.8
S-NA4-09 2 ?13.8V 2 ?12V 2 ?167 2 ?14
S-NA4-10 2 ?17.2V 2 ?15V 2 ?133 2 ?21
S-NA4-11 2 ?20.6V 2 ?18V 2 ?111 2 ?31.5
S-NA4-11B 2 ?24V 2 ?21V 2 ?95 2 ?43
S-NA4-12 2 ?27.5V 2 ?24V 2 ?83 2 ?56
S-NA4-12B 2 ?31V 2 ?27V 2 ?74 2 ?70


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